Ant.java
| Index Score | ||
|---|---|---|
 |
 |
ants.p2p |
 |
 |
ANtsP2P |
View: Reasons, Metrics, Source Code
These are the metrics that contribute to the Enerjy Score for this file, ranked by impact. So the metrics listed at the top influence the score to a greater extent that the metrics listed at the bottom.
| Metric | Description | |
|---|---|---|
| COMPARISONS | Number of comparison operators |  |
| CYCLOMATIC | Cyclomatic complexity | |
| OPERATORS | Number of operators | |
| PROGRAM_LENGTH | Halstead program length | |
| JAVA0034 | JAVA0034 Missing braces in if statement | |
| OPERANDS | Number of operands | |
| ELOC | Effective lines of code | |
| BLOCKS | Number of blocks | |
| SIZE | Size of the file in bytes | |
| LOOPS | Number of loops | |
| LOC | Lines of code | |
| LOGICAL_LINES | Number of statements | |
| JAVA0049 | JAVA0049 Nested block at depth N (maximum: M) | |
| LINES | Number of lines in the source file | |
| UNIQUE_OPERANDS | Number of unique operands | |
| EXITS | Procedure exits | |
| PROGRAM_VOCAB | Halstead program vocabulary | |
| JAVA0166 | JAVA0166 Generic exception caught | |
| JAVA0076 | JAVA0076 Use of magic number | |
| JAVA0081 | JAVA0081 Boolean literal in comparison | |
| JAVA0117 | JAVA0117 Missing javadoc: method 'method' | |
| RETURNS | Number of return points from functions | |
| INTERFACE_COMPLEXITY | Interface complexity | |
| JAVA0031 | JAVA0031 Case statement not properly closed | |
| PARAMS | Number of formal parameter declarations | |
| FUNCTIONS | Number of function declarations | |
| JAVA0007 | JAVA0007 Should not declare public field | |
| JAVA0116 | JAVA0116 Missing javadoc: field 'field' | |
| LINE_COMMENT | Number of line comments | |
| JAVA0083 | JAVA0083 Unnecessary instanceof test | |
| JAVA0144 | JAVA0144 Line exceeds maximum M characters | |
| EXEC_COMMENTS | Comments in executable code | |
| JAVA0087 | JAVA0087 Use of Thread.sleep() | |
| JAVA0079 | JAVA0079 Use of instance to reference static member | |
| NEST_DEPTH | Maximum nesting depth | |
| JAVA0160 | JAVA0160 Method does not throw specified exception | |
| JAVA0284 | JAVA0284 Explicit garbage collection | |
| JAVA0177 | JAVA0177 Variable declaration missing initializer | |
| JAVA0270 | JAVA0270 Use Java 5.0 enhanced for loop construct to iterate over all elements in an array | |
| JAVA0283 | JAVA0283 Control variable not updated in loop body | |
| JAVA0272 | JAVA0272 Thread.run() called | |
| JAVA0287 | JAVA0287 Unnecessary null check | |
| UNIQUE_OPERATORS | Number of unique operators | |
| JAVA0035 | JAVA0035 Missing braces in for statement | |
| JAVA0285 | JAVA0285 Dereference of potentially null variable | |
| JAVA0040 | JAVA0040 Switch statement contains N cases (maximum: M) | |
| JAVA0075 | JAVA0075 Method parameter hides field | |
| JAVA0143 | JAVA0143 Synchronized method | |
| PROGRAM_VOLUME | Halstead program volume | |
| JAVA0259 | JAVA0259 Return of collection/array field | |
| JAVA0136 | JAVA0136 N methods defined in class (maximum: M) | |
| JAVA0138 | JAVA0138 N parameters defined for method (maximum: M) | |
| JAVA0126 | JAVA0126 Method declares unchecked exception in throws | |
| JAVA0273 | JAVA0273 Non-final derivative of Thread calls start() in constructor | |
| JAVA0110 | JAVA0110 Incorrect javadoc: no @return tag | |
| JAVA0264 | JAVA0264 Integer math in long context - check for overflow | |
| JAVA0173 | JAVA0173 Unused method parameter | |
| JAVA0029 | JAVA0029 Private method not used | |
| JAVA0067 | JAVA0067 Array descriptor on identifier name | |
| JAVA0100 | JAVA0100 Class contains N non-final fields (maximum: M) | |
| JAVA0108 | JAVA0108 Incorrect javadoc: no @param tag for 'parameter' | |
| DECL_COMMENTS | Comments in declarations | |
| COMMENTS | Comment lines | |
| DOC_COMMENT | Number of javadoc comment lines | |
| JAVA0130 | JAVA0130 Non-static method does not use instance fields | |
| JAVA0003 | JAVA0003 Minimize use of on-demand (.*) imports | |
| JAVA0145 | JAVA0145 Tab character used in source file | |
//******************************************************************
//******************************************************************
//********** ANts Peer To Peer Sources *************
//
// ANts P2P realizes a third generation P2P net. It protects your
// privacy while you are connected and makes you not trackable, hiding
// your identity (ip) and crypting everything you are sending/receiving
// from others.
// Copyright (C) 2004 Roberto Rossi
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; either version 2
// of the License, or (at your option) any later version.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
package ants.p2p;
import java.util.*;
import java.net.*;
import java.beans.*;
import java.security.*;
import ants.p2p.security.sockets.*;
import ants.p2p.messages.*;
import ants.p2p.messages.security.*;
import ants.p2p.utils.indexer.*;
import ants.p2p.utils.encoding.*;
import ants.p2p.query.*;
import ants.p2p.exceptions.*;
import ants.p2p.http.*;
import org.apache.log4j.*;
import ants.p2p.utils.net.*;
public class Ant
extends Thread {
private static final String protocolVersion = "1.0.0";
private static final String applicationName = "ANtsP2P";
private static final String applicationVersion = "beta1.6.0";
private static final String netName = "ANtsNet";
private static Logger _logger = Logger.getLogger(Ant.class.getName());
int serverPort = 443;
public static String ConnectionType = "56K";
public static int myMessageSizeMax = 10000;
public static int inTransitMessageSizeMax = 10000;
public static long routeInactiveTimeout = 10*60*1000;
public static int maxNeighbours = 15;
java.util.List neighbours = new ArrayList();//Collections.synchronizedList(new ArrayList());
java.util.Hashtable netModifications = new java.util.Hashtable();
public java.util.List myMessages = new ArrayList()/*Collections.synchronizedList(new ArrayList())*/;
public java.util.List failedMessages = new ArrayList()/*Collections.synchronizedList(new ArrayList())*/;
public Hashtable routingTable = new Hashtable();
public java.util.List inTransitMessages = new ArrayList()/*Collections.synchronizedList(new ArrayList())*/;
protected SecureServer ss;
public static long messageTimeout = 180000;
public static int maxRetransmissions = 3;
public static int maxRetransmissionsForceDirection = 2;
public static int maxFailedMessageToTrace = 100;
public static int beingRoutedMessages = 0;
public static int maxMessagesToRouteToghether = 50;
public static int netModificationsTimeout = 60*1000*5;
public static int probeCheckInterval = 60*1000*6;
public static double underRateConnections = 2.0/3.0;
boolean terminate = false;
protected boolean acceptTCPDirectConnections = false;
String localInetAddress = null;
public PropertyChangeSupport propertyChangeSupport = new PropertyChangeSupport(this);
String id = null;
public int localNattedPort = 0;
public String localNattedInetAddress = null;
public static boolean proxied = false;
boolean upnp;
public Ant(String id, int maxNeighbours, int serverPort, boolean acceptDC, String localInetAddress, boolean UPnP) {
this.id = id;
this.upnp = UPnP;
this.acceptTCPDirectConnections = acceptDC;
this.localInetAddress = localInetAddress;
this.serverPort = serverPort;
if (maxNeighbours >= 1) {
this.setMaxNeighbours(maxNeighbours);
}
this.setPriority(6);
this.start();
}
public static void setProxied(InetAddress proxyAddress, int proxyPort){
System.setProperty("http.proxySet","true");
System.setProperty("http.proxyPort",proxyPort+"");
System.setProperty("http.proxyHost",proxyAddress.getHostAddress());
System.setProperty("https.proxyHost", proxyAddress.getHostAddress());
System.setProperty("https.proxyPort", proxyPort+"");
proxied = true;
}
public static void setDirectConnection(){
System.setProperty("http.proxySet","false");
proxied = false;
}
public boolean acceptTCPDirectConnections(){
return this.acceptTCPDirectConnections;
}
public String getLocalInetAddress(){
if(this.acceptTCPDirectConnections){
try{
if (!this.isInternetPublicAddress(InetAddress.getByName(this.localInetAddress))){
return "";
}else{
return this.localInetAddress + ":" + (this.serverPort);
}
}catch(Exception e){
return "";
}
}
else
return "";
}
public void setLocalInetAddress(String localInetAddress){
if(localInetAddress.startsWith("/")) localInetAddress = localInetAddress.substring(1);
this.localInetAddress = localInetAddress;
}
public String getLanAddress(){
try{
InetAddress[] addresses = InetAddress.getAllByName(InetAddress.getLocalHost().getHostName());
for (int x = 0; x < addresses.length; x++) {
if (!isInternetPublicAddress(addresses[x]) && !addresses[x].isLoopbackAddress()) {
String address = addresses[x].getHostAddress();
if(address.startsWith("/")) address = address.substring(1);
return address;
}
}
for (int x = 0; x < addresses.length; x++) {
if (!addresses[x].isLoopbackAddress()) {
String address = addresses[x].getHostAddress();
if(address.startsWith("/")) address = address.substring(1);
return address;
}
}
}catch(Exception e){
_logger.error("Invalid InetAddress: ",e);
}
return null;
}
public static boolean isInternetPublicAddress(InetAddress address) {
try {
byte head = address.getAddress()[0];
byte body = address.getAddress()[1];
byte tail = address.getAddress()[2];
if (head >= 89 && head <= 127)
return false;
if (head >= 173 && head <= 187)
return false;
if (head >= 224 && head <= 239)
return false;
if (head >= 240 && head <= 255)
return false;
switch (head) {
case (byte) 0:
break;
case (byte) 1:
break;
case (byte) 2:
break;
case (byte) 5:
break;
case (byte) 10:
break;
case (byte) 23:
break;
case (byte) 27:
break;
case (byte) 31:
break;
case (byte) 36:
break;
case (byte) 37:
break;
case (byte) 39:
break;
case (byte) 41:
break;
case (byte) 42:
break;
case (byte) 46:
break;
case (byte) 49:
break;
case (byte) 50:
break;
case (byte) 58:
break;
case (byte) 59:
break;
case (byte) 60:
break;
case (byte) 71:
break;
case (byte) 72:
break;
case (byte) 73:
break;
case (byte) 74:
break;
case (byte) 75:
break;
case (byte) 76:
break;
case (byte) 77:
break;
case (byte) 78:
break;
case (byte) 79:
break;
case (byte) 128:
if (body == (byte) 0)
break;
case (byte) 169:
if (body == (byte) 254)
break;
case (byte) 172:
if (body >= (byte) 16 && body <= (byte) 31)
break;
case (byte) 189:
break;
case (byte) 190:
break;
case (byte) 191:
if (body == (byte) 255)
break;
case (byte) 192:
if (body == (byte) 0 ||
(body == (byte) 68 && tail == (byte) 185) ||
body == (byte) 168)
break;
case (byte) 197:
break;
case (byte) 198:
if (body >= (byte) 18 && body <= (byte) 19)
break;
case (byte) 223:
break;
default:
return true;
}
return false;
}
catch (Exception e) {
return false;
}
}
public static String getVersion() {
return applicationVersion;
}
public static String getProtocolVersion() {
return protocolVersion;
}
public static String getApplicationName() {
return applicationName;
}
public static String getNetName(){
return netName;
}
public String getIdent() {
return this.id;
}
public String getShortId(){
return this.id.substring(0,10);
}
public int getServerPort() {
return this.serverPort;
}
public java.util.List getFailedMessages() {
return this.failedMessages;
}
public void setMaxNeighbours(int mn) {
maxNeighbours = mn;
}
public int getMaxNeighbours() {
return maxNeighbours;
}
public void removeNeighbour(NeighbourAnt n) {
synchronized (neighbours) {
try {
n.terminate();
if(this.neighbours.remove(n)){
this.generateNetModificationAlert(n);
}
}
catch (Exception e) {
_logger.error(this.getShortId() + "",e);
}
}
}
public void generateNetModificationAlert(NeighbourAnt disconnectedNeighbour){
try{
ArrayList unreachableNeighbours = new ArrayList();
Enumeration routingElements = this.routingTable.keys();
while(routingElements.hasMoreElements()){
String nodeID = (String)routingElements.nextElement();
if(nodeID.equals(this.getIdent())) continue;
RoutingTableElement rte = (RoutingTableElement)this.routingTable.get(nodeID);
if(rte != null && rte.removeRoute(disconnectedNeighbour.getIdent()) && rte.getRoutes().size() == 0){
unreachableNeighbours.add(nodeID);
this.routingTable.remove(nodeID);
if(rte != null && rte.getIP() != null){
String unreachableIP = rte.getIP();
unreachableNeighbours.addAll(this.removeRoutes(unreachableIP, disconnectedNeighbour.getIdent()));
}
this.propertyChangeSupport.firePropertyChange("routeLost", disconnectedNeighbour.getIdent(), nodeID);
_logger.info("[1]UNREACHABLE: "+nodeID.substring(0,10));
}
}
if(unreachableNeighbours.size() != 0){
NetModificationAlert alert = new NetModificationAlert(
unreachableNeighbours);
this.netModifications.put(alert.getAck_Id(),
new Long(System.currentTimeMillis()));
for (int x = 0; x < this.neighbours.size(); x++) {
( (NeighbourAnt)this.neighbours.get(x)).route(alert);
}
}
}catch(Exception e){
_logger.error("Error in processing netModification upon peer disconnection",e);
}
}
public void generateNetModificationAlert(Message m, String neighbourId){
try{
if(m.getDest().equals(this.getIdent())) return;
RoutingTableElement rte = (RoutingTableElement)this.routingTable.get(m.getDest());
if(rte != null && rte.removeRoute(neighbourId) && rte.getRoutes().size() == 0){
_logger.info("[2]UNREACHABLE: "+m.getDest().substring(0,10));
this.routingTable.remove(neighbourId);
ArrayList unreachableNeighbours = new ArrayList();
unreachableNeighbours.add(m.getDest());
if(rte != null && rte.getIP() != null){
String unreachableIP = rte.getIP();
unreachableNeighbours.addAll(this.removeRoutes(unreachableIP, neighbourId));
}
this.propertyChangeSupport.firePropertyChange("routeLost", neighbourId, m.getDest());
if (unreachableNeighbours.size() != 0) {
NetModificationAlert alert = new NetModificationAlert(
unreachableNeighbours);
this.netModifications.put(alert.getAck_Id(), new Long(System.currentTimeMillis()));
for (int x = 0; x < this.neighbours.size(); x++) {
( (NeighbourAnt)this.neighbours.get(x)).route(alert);
}
}
}
}
catch (Exception e) {
_logger.error("Error in generating netModification Alert upon message deletion", e);
}
}
public void generateNetModificationAlert(ArrayList unreachableNeighbours, String requirer){
try{
if (unreachableNeighbours.size() != 0){
for(int x = unreachableNeighbours.size() - 1; x >= 0; x--){
if(unreachableNeighbours.get(x).equals(this.getIdent())) {
unreachableNeighbours.remove(x);
continue;
}
RoutingTableElement rte = (RoutingTableElement)this.routingTable.remove(unreachableNeighbours.get(x));
if(rte != null && rte.getIP() != null){
String unreachableIP = rte.getIP();
unreachableNeighbours.addAll(this.removeRoutes(unreachableIP, requirer));
}
this.propertyChangeSupport.firePropertyChange("routeLost", null, unreachableNeighbours.get(x));
_logger.info("[3]UNREACHABLE: "+(unreachableNeighbours.get(x).toString().length() > 10 ? unreachableNeighbours.get(x).toString().subSequence(0,10) : unreachableNeighbours.get(x).toString()));
}
NetModificationAlert alert = new NetModificationAlert(unreachableNeighbours);
this.netModifications.put(alert.getAck_Id(), new Long(System.currentTimeMillis()));
if(this.acceptTCPDirectConnections){
try{
Neighbour n = new DirectNeighbour(requirer, this);
if (n != null) {
n.send(alert);
}
}catch(Exception e){}
}
for (int x = 0; x < this.neighbours.size(); x++) {
( (NeighbourAnt)this.neighbours.get(x)).route(alert);
}
}
}
catch (Exception e) {
_logger.error("Error in generating netModification Alert upon message deletion", e);
}
}
private ArrayList removeRoutes(String ip, String sourceId){
Enumeration routingElements = this.routingTable.keys();
ArrayList unreachableNeighbours = new ArrayList();
while(routingElements.hasMoreElements()){
String nodeID = (String)routingElements.nextElement();
if(nodeID.equals(this.getIdent())) continue;
RoutingTableElement rte = (RoutingTableElement)this.routingTable.get(nodeID);
if(rte != null && rte.removeRoute(ip) &&
rte.getRoutes().size() == 0){
unreachableNeighbours.add(nodeID);
this.routingTable.remove(nodeID);
String unreachableIP = rte.getIP();
unreachableNeighbours.addAll(this.removeRoutes(unreachableIP, sourceId));
this.propertyChangeSupport.firePropertyChange("routeLost", sourceId, nodeID);
}
}
return unreachableNeighbours;
}
protected synchronized void processNetModificationAlert(NetModificationAlert alert, Neighbour source){
try{
if (this.netModifications.get(alert.getAck_Id()) != null) return;
this.netModifications.put(alert.getAck_Id(), new Long(System.currentTimeMillis()));
ArrayList unreachableNeighbours = new ArrayList();
Enumeration routingElements = this.routingTable.keys();
while(routingElements.hasMoreElements()){
String nodeID = (String)routingElements.nextElement();
if(nodeID.equals(this.getIdent())) continue;
RoutingTableElement rte = (RoutingTableElement)this.routingTable.get(nodeID);
if(alert.getUnreachablePeers().contains(nodeID) && rte != null &&
rte.removeRoute(source.getIdent()) &&
rte.getRoutes().size() == 0){
unreachableNeighbours.add(nodeID);
_logger.info("[4]UNREACHABLE: "+nodeID.substring(0,10));
this.routingTable.remove(nodeID);
if(rte != null && rte.getIP() != null){
String unreachableIP = rte.getIP();
unreachableNeighbours.addAll(this.removeRoutes(unreachableIP, source.getIdent()));
}
this.propertyChangeSupport.firePropertyChange("routeLost", source.getIdent(), nodeID);
}
}
if (unreachableNeighbours.size() != 0){
alert.setUnreachablePeers(unreachableNeighbours);
for (int x = 0; x < this.neighbours.size(); x++) {
if (! ( (NeighbourAnt)this.neighbours.get(x)).equals(source))
( (NeighbourAnt)this.neighbours.get(x)).route(alert);
}
}
}
catch (Exception e) {
_logger.error("Error in processing netModification Alert", e);
}
}
public NeighbourAnt getNeighbour(String id) {
for (int x = 0; x < this.neighbours.size(); x++) {
if ( ( (NeighbourAnt)this.neighbours.get(x)).getIdent().equals(id) ||
( (NeighbourAnt)this.neighbours.get(x)).getRemoteId().equals(id)) {
return (NeighbourAnt)this.neighbours.get(x);
}
}
return null;
}
public static int getRateThresold(){
int rateThresold = Integer.MAX_VALUE;
if(Ant.ConnectionType.equals("56K"))
rateThresold = Integer.MAX_VALUE;
else if(Ant.ConnectionType.equals("ISDN"))
rateThresold = Integer.MAX_VALUE;
else if(Ant.ConnectionType.equals("DSL"))
rateThresold = 3000;
else if(Ant.ConnectionType.equals("CABLE"))
rateThresold = 1500;
else if(Ant.ConnectionType.equals("LAN T3"))
rateThresold = 750;
else if(Ant.ConnectionType.equals("LAN T2"))
rateThresold = 375;
else if(Ant.ConnectionType.equals("LAN T1"))
rateThresold = 186;
else if(Ant.ConnectionType.equals("LAN or Fiber Net"))
rateThresold = 186;
return rateThresold;
}
public int getUnderRatedNeighbours() {
int rateThresold = this.getRateThresold();
int underRatedNeighbours = 0;
for (int x = 0; x < this.getNeighbours().size(); x++) {
if ( ( (NeighbourAnt)this.getNeighbours().get(x)).getTimeElapsed() >=
rateThresold)
underRatedNeighbours++;
}
return underRatedNeighbours;
}
public boolean equals(Object o) {
if (o instanceof Ant)
return ( (Ant) o).getIdent().equals(this.getIdent());
else
return o == this;
}
public int getNeighboursNumber() {
return this.neighbours.size();
}
public void addNeighbour(NeighbourAnt n) throws Exception {
synchronized (neighbours) {
if (this.neighbours.size() < this.maxNeighbours &&
!this.neighbours.contains(n) && !this.isDisconnected()) {
this.neighbours.add(n);
}
else {
if (this.neighbours.size() >= this.maxNeighbours)
throw new Exception(this.getShortId() +
": Max neighbourg number reached");
else if (this.neighbours.contains(n))
throw new Exception(this.getShortId() + ": Neighbourg already connected");
else
throw new Exception(this.getShortId() +
": Strange thing in neighbour add process.");
}
}
_logger.debug(this.getIdent() + ": Added Neighbour by request IP(local): "+n.getIdent()+" IP(remote): "+n.getRemoteId());
this.propertyChangeSupport.firePropertyChange("newNeighbour", null, n);
}
public void addP2PNeighbour(String remoteAddress, int port,
boolean isRequirer,
InetAddress localhost) throws Exception {
if(this.isDisconnected())
return;
InetAddress remote = InetAddress.getByName(remoteAddress);
if ( (remote.isLoopbackAddress() ||
remote.isAnyLocalAddress() ||
remote.isLinkLocalAddress() ||
remote.isSiteLocalAddress()) &&
port == this.getServerPort()){
return;
}
if (localhost.getHostAddress().equals(remote.getHostAddress()) &&
port == this.getServerPort()){
return;
}
for (int x = 0; x < this.neighbours.size(); x++) {
NeighbourAnt na = ( (NeighbourAnt)this.neighbours.get(x));
if (na.getIdent().equals(remoteAddress + " " + port) ||
na.getRemoteId().equals(remoteAddress + " " + port) ||
((na.s.getInetAddress().isLoopbackAddress() ||
na.s.getInetAddress().isAnyLocalAddress() ||
na.s.getInetAddress().isLinkLocalAddress() ||
na.s.getInetAddress().isSiteLocalAddress()) && (na.remoteServerPort == port || na.port == port))){
return;
}
}
SecureClientSocket scs = new SecureP2PClientSocket(remoteAddress, port, this.getServerPort(), this.proxied);
if (scs.isNewVersionDetected()) {
this.getPropertyChangeSupport().firePropertyChange(
"newANtsVersionDetected", null,
scs.getNewerVersion());
}
if (!scs.isClosed()) {
_logger.info(scs.getInetAddress().getHostAddress() +": Local time elapsed: "+scs.getTimeElapsed()+"[Thresold: "+this.getRateThresold()+"]");
/*if(this.getUnderRatedNeighbours() >= Math.floor(Ant.maxNeighbours*underRateConnections) &&
scs.getTimeElapsed() >= this.getRateThresold()){
throw new Exception(scs.getInetAddress().getHostAddress() + ": Rejected neighbour cause it doesn't satisfy bandwith request: ["+this.getUnderRatedNeighbours()+"/"+Math.floor(Ant.maxNeighbours*underRateConnections)+"]");
}*/
NeighbourAnt n = new NeighbourAnt(this, remoteAddress, port,
scs.getLocalServerPort(),
scs.getCipherEnc(), scs.getCipherDec(),
scs.getSocket(), isRequirer, scs.getTimeElapsed());
synchronized (neighbours) {
if (this.neighbours.size() < this.maxNeighbours &&
!this.neighbours.contains(n)) {
this.neighbours.add(n);
n.start();
}
else {
n.terminate();
n.setFailure();
n.start();
if (this.neighbours.size() >= this.maxNeighbours){
throw new Exception(this.getShortId() +
": Max neighbourg number reached");
}
else if (this.neighbours.contains(n)){
throw new Exception(this.getShortId() +
": Neighbourg already connected");
}
throw new Exception(this.getShortId() +
": Strange thing in neighbour add process.");
}
}
_logger.debug(this.getIdent() + ": Added Neighbourg from address IP(local): "+n.getIdent()+" IP(remote): "+n.getRemoteId());
this.propertyChangeSupport.firePropertyChange("newNeighbour", null, n);
}
else {
_logger.info(this.getShortId() + ": Connection rejected...");
}
}
public java.util.List getNeighbours() {
return this.neighbours;
}
public MessageWrapper getMessage(String id) {
for (int x = 0; x < this.myMessages.size(); x++) {
if ( ( (MessageWrapper)this.myMessages.get(x)).getMessage().getAck_Id().
equals(id)) {
return (MessageWrapper)this.myMessages.get(x);
}
}
return null;
}
public void traceHints(Message m, String requirer){
if(!m.getSource().equals(this.getIdent())){
if(m instanceof QueryMessage && m.getType() == 0 && ((QueryMessage)m).getProcessed()){
QueryMessage qm = (QueryMessage)m;
for(int x = 0; qm.getTuples() != null && x < qm.getTuples().size(); x++){
if(qm.getTuples().get(x) instanceof QueryRemoteFileTuple){
QueryRemoteFileTuple qrft = (QueryRemoteFileTuple) qm.getTuples().get(x);
if(this.getIdent().equals(qrft.getOwnerID())) continue;
if (this.routingTable.get(qrft.getOwnerID()) != null) {
RoutingTableElement rte = (RoutingTableElement)this.routingTable.get(qrft.getOwnerID());
if (!this.acceptTCPDirectConnections || m.getSourceAddress().equals(""))
rte.addHintRoute(requirer, qrft.getLastTimeSeen().longValue());
else
rte.setIP(qrft.getOwnerIP());
}
else {
RoutingTableElement rte = new RoutingTableElement();
if (!this.acceptTCPDirectConnections || m.getSourceAddress().equals(""))
rte.addHintRoute(requirer, qrft.getLastTimeSeen().longValue());
else
rte.setIP(qrft.getOwnerIP());
this.routingTable.put(qrft.getOwnerID(), rte);
}
}
else if(qm.getTuples().get(x) instanceof HttpServerInfo){
HttpServerInfo si = (HttpServerInfo) qm.getTuples().get(x);
if(this.getIdent().equals(si.getOwnerId())) continue;
if (this.routingTable.get(si.getOwnerId()) != null) {
RoutingTableElement rte = (RoutingTableElement)this.routingTable.get(si.getOwnerId());
if (!this.acceptTCPDirectConnections || si.getOwnerIp().equals(""))
rte.addHintRoute(requirer, si.getSeenOn().longValue());
else
rte.setIP(si.getOwnerIp());
}
else {
RoutingTableElement rte = new RoutingTableElement();
if (!this.acceptTCPDirectConnections || si.getOwnerIp().equals(""))
rte.addHintRoute(requirer, si.getSeenOn().longValue());
else
rte.setIP(si.getOwnerIp());
this.routingTable.put(si.getOwnerId(), rte);
}
}
}
}
}
}
public void traceDeliveredMessage(MessageWrapper wm) {
if(!wm.getMessage().getSource().equals(this.getIdent()) &&
!wm.getMessage().getSource().equals("")){
if(this.routingTable.get(wm.getMessage().getSource()) != null){
RoutingTableElement rte = (RoutingTableElement) this.routingTable.get(wm.getMessage().getSource());
if (!this.acceptTCPDirectConnections || wm.getMessage().getSourceAddress().equals(""))
rte.addTracedRoute(wm.getRequirer());
else
rte.setIP(wm.getMessage().getSourceAddress());
}else{
RoutingTableElement rte = new RoutingTableElement();
if (!this.acceptTCPDirectConnections || wm.getMessage().getSourceAddress().equals(""))
rte.addTracedRoute(wm.getRequirer());
else
rte.setIP(wm.getMessage().getSourceAddress());
this.routingTable.put(wm.getMessage().getSource(), rte);
}
}
if(!wm.getMessage().getDest().equals(this.getIdent()) &&
!wm.getMessage().getDest().equals("")){
if(this.routingTable.get(wm.getMessage().getDest()) != null){
RoutingTableElement rte = (RoutingTableElement) this.routingTable.get(wm.getMessage().getDest());
rte.addTracedRoute(wm.getRoutedTo());
}else{
RoutingTableElement rte = new RoutingTableElement();
rte.addTracedRoute(wm.getRoutedTo());
this.routingTable.put(wm.getMessage().getDest(), rte);
}
if(wm.getMessage() instanceof QueryMessage && wm.getMessage().getType() == 2){
QueryMessage qm = (QueryMessage)wm.getMessage();
for(int x = 0; qm.getTuples() != null && x < qm.getTuples().size(); x++){
if(qm.getTuples().get(x) instanceof QueryRemoteFileTuple){
QueryRemoteFileTuple qrft = (QueryRemoteFileTuple) qm.getTuples().get(x);
if(this.getIdent().equals(qrft.getOwnerID())) continue;
if (this.routingTable.get(qrft.getOwnerID()) != null) {
RoutingTableElement rte = (RoutingTableElement)this.routingTable.get(qrft.getOwnerID());
if (!this.acceptTCPDirectConnections || qrft.getOwnerIP().equals(""))
rte.addHintRoute(wm.getRoutedTo(), qrft.getLastTimeSeen().longValue());
else
rte.setIP(qrft.getOwnerIP());
}
else {
RoutingTableElement rte = new RoutingTableElement();
if (!this.acceptTCPDirectConnections || qrft.getOwnerIP().equals(""))
rte.addHintRoute(wm.getRoutedTo(), qrft.getLastTimeSeen().longValue());
else
rte.setIP(qrft.getOwnerIP());
this.routingTable.put(qrft.getOwnerID(), rte);
}
}
else if(qm.getTuples().get(x) instanceof QuerySupernodeTuple){
QuerySupernodeTuple qst = (QuerySupernodeTuple) qm.getTuples().get(x);
if(this.getIdent().equals(qst.getOwnerID())) continue;
if (this.routingTable.get(qst.getOwnerID()) != null) {
RoutingTableElement rte = (RoutingTableElement)this.routingTable.get(qst.getOwnerID());
if (!this.acceptTCPDirectConnections || qst.getOwnerIP().equals(""))
rte.addHintRoute(wm.getRoutedTo(), qst.getSeenOn().longValue());
else
rte.setIP(qst.getOwnerIP());
}
else {
RoutingTableElement rte = new RoutingTableElement();
if (!this.acceptTCPDirectConnections || qst.getOwnerIP().equals(""))
rte.addHintRoute(wm.getRoutedTo(), qst.getSeenOn().longValue());
else
rte.setIP(qst.getOwnerIP());
this.routingTable.put(qst.getOwnerID(), rte);
}
}
else if(qm.getTuples().get(x) instanceof HttpServerInfo){
HttpServerInfo si = (HttpServerInfo) qm.getTuples().get(x);
if(this.getIdent().equals(si.getOwnerId())) continue;
if (this.routingTable.get(si.getOwnerId()) != null) {
RoutingTableElement rte = (RoutingTableElement)this.routingTable.get(si.getOwnerId());
if (!this.acceptTCPDirectConnections || si.getOwnerIp().equals(""))
rte.addHintRoute(wm.getRoutedTo(), si.getSeenOn().longValue());
else
rte.setIP(si.getOwnerIp());
}
else {
RoutingTableElement rte = new RoutingTableElement();
if (!this.acceptTCPDirectConnections || si.getOwnerIp().equals(""))
rte.addHintRoute(wm.getRoutedTo(), si.getSeenOn().longValue());
else
rte.setIP(si.getOwnerIp());
this.routingTable.put(si.getOwnerId(), rte);
}
}
}
}
}
}
public void traceMessage(Message m, String requirer, String routedTo) {
MessageWrapper wm = new MessageWrapper(m, requirer);
wm.setStoreFormat();
wm.setRoutedTo(routedTo);
if (this.routingTable.get(m.getSource()) != null) {
RoutingTableElement rte = (RoutingTableElement)this.routingTable.get(m.getSource());
if(!this.acceptTCPDirectConnections || m.getSourceAddress().equals(""))
rte.addTracedRoute(requirer);
else
rte.setIP(m.getSourceAddress());
}
else {
RoutingTableElement rte = new RoutingTableElement();
if(!this.acceptTCPDirectConnections || m.getSourceAddress().equals(""))
rte.addTracedRoute(requirer);
else
rte.setIP(m.getSourceAddress());
this.routingTable.put(m.getSource(), rte);
}
this.traceHints(m, requirer);
int index = this.inTransitMessages.indexOf(m);
if (index >= 0) {
this.inTransitMessages.remove(index);
}
if (this.inTransitMessages.size() < this.inTransitMessageSizeMax &&
!this.inTransitMessages.contains(m)) {
this.inTransitMessages.add(wm);
}
else if (this.inTransitMessages.size() >= this.inTransitMessageSizeMax &&
!this.inTransitMessages.contains(m)) {
this.inTransitMessages.add(wm);
this.inTransitMessages.remove(0);
}
}
public void traceMyMessage(MessageWrapper wm, String routedTo) {
//synchronized (wm) {
wm.setRoutedTo(routedTo);
//}
//synchronized (this.myMessages) {
int index = this.myMessages.indexOf(wm);
if(index < 0){
this.myMessages.add(wm);
}else{
this.myMessages.remove(wm);
this.myMessages.add(wm);
//this.myMessages.trimToSize();
}
//}
}
public static void decBeingRoutedMessages() {
Ant.beingRoutedMessages--;
//_logger.info("[Routed] There are "+Ant.beingRoutedMessages+" messages being routed");
}
public static boolean verifyAndIncBeingRoutedMessages() {
if (Ant.beingRoutedMessages < Ant.maxMessagesToRouteToghether) {
Ant.beingRoutedMessages++;
//_logger.info("[Routing] There are "+Ant.beingRoutedMessages+" messages being routed");
return true;
}
else {
return false;
}
}
public Router activateNewRouterProcess(Message m, String requirer) throws Exception {
if (Ant.verifyAndIncBeingRoutedMessages()) {
String source = m.getSource();
if(source.length() > 10) source = source.substring(0, 10);
String dest = m.getDest();
if(dest.length() > 10) dest = dest.substring(0, 10);
java.io.ByteArrayOutputStream bos = new java.io.ByteArrayOutputStream();
java.io.ObjectOutputStream oss = new java.io.ObjectOutputStream(bos);
oss.writeObject(m);
oss.close();
bos.close();
_logger.info("Routing["+m.getType()+"]: "+m.getClass().toString()+" from " + source + " to " + dest + " size " + (bos.toByteArray().length / 1024.0) + "KB");
Router r = new Router(this, m, requirer);
/*Prova Priorit‡*/
if (m instanceof ControlMessage ||
m instanceof FileTransferEndControlMessage ||
m instanceof FileTransferErrorControlMessage ||
m instanceof FileSizePullErrorControlMessage ||
m instanceof FileInfosPullErrorControlMessage ||
m instanceof HttpTransferEndControlMessage ||
m instanceof HttpInterruptTransferMessage ||
m instanceof SecureConnectionErrorControlMessage ||
m instanceof NetModificationAlert) {
r.setPriority(10);
}
else if (m instanceof SecurityRequestMessage ||
m instanceof SecurityResponseMessage ||
m instanceof FilePullMessage ||
m instanceof FilePushMessage ||
m instanceof FileInfosPullMessage ||
m instanceof FileInfosPushMessage ||
m instanceof HttpRequestMessage) {
r.setPriority(10);
}
else if (m instanceof FileSizePullMessage ||
m instanceof FileSizePushMessage) {
r.setPriority(8);
}
else if (m instanceof PrivateChatMessage) {
r.setPriority(7);
}
else if (m instanceof QueryMessage) {
QueryMessage qm = (QueryMessage) m;
if (qm.getQuery() instanceof QueryStringItem ||
qm.getQuery() instanceof QueryHashItem){
r.setPriority(10); //was 6
}
else if (qm.getQuery() instanceof QueryFileListItem ||
qm.getQuery() instanceof QuerySupernodeItem ||
qm.getQuery() instanceof QueryInetAddressItem ||
qm.getQuery() instanceof QueryRandomItem) {
r.setPriority(6);
}
else
r.setPriority(10);
}
else if (m instanceof HttpResponsePartMessage) {
r.setPriority(6);//was 4
}
else if (m instanceof FilePartMessage) {
r.setPriority(6);// was 3
}
else if (m instanceof Message) {
r.setPriority(6);
}
if (Router.PARALLEL)
r.start();
else
r.run();
return r;
}else{
_logger.error("Too many messages being routed!");
return null;
}
}
public SenderThread[] route(MessageWrapper wm, Message m, String requirer, Router r, boolean external, boolean retransmission)throws
Exception {
if(external){
return this.routeExternalMessage(m, requirer, r);
}else if(!external && retransmission){
return this.retransmitMessage(wm);
}else{
return this.routeMyMessage(wm);
}
}
private SenderThread[] routeExternalMessage(Message m, String requirer, Router r) throws
Exception {
try {
if (!m.getSource().equals("") && m.getSource().equals(this.getIdent())) {
try {
MessageSigner.getInstance().sign(m);
}
catch (Exception e) {
_logger.error("Failed signing broadcast message", e);
}
}
if (Router.delay > 0)
Thread.sleep( (long) Math.floor(Router.delay * Math.random()));
if (this.neighbours.size() == 0) {
ArrayList unreachableNeighbours = new ArrayList();
unreachableNeighbours.add(m.getDest());
this.generateNetModificationAlert(unreachableNeighbours, requirer);
throw new Exception(this.getShortId() +
": Destination node " + m.getDest().substring(0,10) +
" unreachable for message from node " + (m.getSource().length() > 0 ? m.getSource().substring(0,10) : m.getSource()) +
" with id " +
m.getAck_Id() + " type = " + m.getType() +
"\nReason: No Route Found " + "Node " + this.getShortId() +
" has no neighbours");
}
if (this.myMessages.contains(m)) {
if(m.getType() != 2){
int index = this.myMessages.indexOf(m);
MessageWrapper wm = (MessageWrapper)this.myMessages.get(index);
/*if (wm.getRetrasmissions() < m.getRetrasmissions() && m.getRetrasmissions() < Ant.maxRetransmissionsForceDirection) {
wm.notToBeConsidered = new ArrayList();//Collections.synchronizedList(new ArrayList())
}
else*/ if (!wm.notToBeConsidered.contains(wm.getRoutedTo())) {
wm.notToBeConsidered.add(wm.getRoutedTo());
this.generateNetModificationAlert(wm.getMessage(), wm.getRoutedTo());
}
Neighbour selectedNeighbour = this.checkForRoute(wm, wm.notToBeConsidered);
if(selectedNeighbour != null){
SenderThread[] st = new SenderThread[1];
st[0] = selectedNeighbour.route(m);
return st;
}
if(wm.notToBeConsidered.size() == 0){
ArrayList unreachableNeighbours = new ArrayList();
unreachableNeighbours.add(wm.getMessage().getDest());
this.generateNetModificationAlert(unreachableNeighbours, requirer);
}
throw new Exception(this.getShortId() +
": Destination node " + m.getDest().substring(0,10) +
" unreachable for message from node " +
(m.getSource().length() > 0 ? m.getSource().substring(0,10) : m.getSource()) + " with id " +
m.getAck_Id() +
" type = " + m.getType() +
"\nReason: No Route Found " + "Node " +
this.getShortId() + " excluded all its " +
wm.notToBeConsidered.size() + " neghbours");
}
else { // m.getType() == 2
_logger.debug(this.getShortId() +
": Broadcast Message returned no more node avaiable to send. Killing...");
return null;
}
}
else if (!m.getDest().equals(this.getIdent())) {
if (!this.inTransitMessages.contains(m)) {
if (m.getType() == 1) {
for (int k = 0; k < this.inTransitMessages.size(); k++) {
MessageWrapper inTransit = (MessageWrapper)this.inTransitMessages.get(k);
if ( (inTransit.getMessage().getType() == 0 ||
inTransit.getMessage().getType() == 2) &&
inTransit.getMessage().getAck_Id().equals(m.getAck_Id())) {
Neighbour n = null;
if(inTransit.getMessage().getSourceAddress().equals("")){
try{
n = new DirectNeighbour(inTransit.getRequirer(), this);
}catch(Exception e){
n = this.getNeighbour(inTransit.getRequirer());
}
}
else{
try{
n = new DirectNeighbour(inTransit.getMessage().getSourceAddress(), this);
}catch(Exception e){
n = this.getNeighbour(inTransit.getRequirer());
}
}
if (n != null) {
inTransit.getMessage().invalidate();
if(inTransit.getMessage().getType() == 2){
Message broadTracer;
if (inTransit.getMessage() instanceof QueryMessage)
broadTracer = new QueryMessage( (QueryMessage) m);
else
broadTracer = new Message(m);
broadTracer.fillMessageProperties(inTransit.getMessage().getSource(), inTransit.getMessage().getSourceAddress() , m.getSource(), 2, m.getAck_Id());
MessageWrapper broadTracerWrapper = new MessageWrapper(broadTracer, inTransit.getRequirer());
broadTracerWrapper.setRoutedTo(requirer);
this.traceDeliveredMessage(broadTracerWrapper);
}else{
this.inTransitMessages.remove(k);
this.traceDeliveredMessage(inTransit);
}
_logger.debug(this.getShortId() +
": C Forwarding message with id = " +
m.getAck_Id() + " type = " +
m.getType() +
" to id = " +
n.getIdent());
SenderThread[] st = new SenderThread[1];
st[0] = n.route(m);
return st;
}else{
throw new NullNeighbourException(this.getShortId() +
": Ack forwarding error [" +inTransit.getRequirer()+"] Dest "+
m.getDest() +
" source " +
m.getSource() + " with id " +
m.getAck_Id() +
" type = " + m.getType() +
"\nReason: No Route Found Node " +
this.getShortId());
}
}
}
throw new NullNeighbourException(this.getShortId() +
": Ack message error: dest " +
m.getDest() +
" source " +
m.getSource() + " with id " +
m.getAck_Id() +
" type = " + m.getType() +
"\nReason: No Route Found Node " +
this.getShortId());
}
else if (m.getType() == 2) {
this.traceMessage(m, requirer, "");
double mustDie = ((QueryMessage)m).getNextRandomDoubleAndRollback() * 100;
if(!(mustDie < r.queryDieProbability)) this.processMessage(m, r);
ArrayList threadsList = new ArrayList();
int floodedMessages = 0;
List neighboursShuffled = (ArrayList)((ArrayList)this.getNeighbours()).clone();
Collections.shuffle(neighboursShuffled);
for(int x = 0; x < neighboursShuffled.size() && !(mustDie < r.queryDieProbability); x++){
double mustRoute = Math.random() * 100;
if(mustRoute < (floodedMessages > 0 ?
100 * Math.pow(r.routeProbability / 100.0, (floodedMessages + 1.0)):
r.routeProbability)){
floodedMessages++;
QueryMessage copy = new QueryMessage((QueryMessage)m);
double modifySeed = Math.random() * 100;
if(modifySeed < r.querySeedModificationProbability) copy.getNextRandomDouble();
NeighbourAnt n = (NeighbourAnt)neighboursShuffled.get(x);
if (n != null && !n.getIdent().equals(requirer)) {
try{
SenderThread broadSender = n.route(copy);
threadsList.add(broadSender);
_logger.debug(this.getShortId() +
": Flooding message with id = " +
m.getAck_Id() + " type = " +
m.getType() +
" to id = " +
n.getIdent());
}catch(Exception e){
_logger.error("Cannot flood to neighbour",e);
}
}
}
}
SenderThread[] st = new SenderThread[threadsList.size()];
for(int x = 0; x < threadsList.size(); x++)
st[x] = (SenderThread)threadsList.get(x);
return st;
}else{
Neighbour selectedNeighbour = this.checkForRoute(m, requirer, new ArrayList(), false);
if(selectedNeighbour != null){
SenderThread[] st = new SenderThread[1];
st[0] = selectedNeighbour.route(m);
return st;
}
ArrayList unreachableNeighbours = new ArrayList();
unreachableNeighbours.add(m.getDest());
this.generateNetModificationAlert(unreachableNeighbours, requirer);
throw new NullNeighbourException(this.getShortId() +
": Destination node " +
m.getDest().substring(0,10) +
" unreachable for message from node " +
(m.getSource().length() > 0 ? m.getSource().substring(0,10) : m.getSource()) + " with id " +
m.getAck_Id() +
" type = " + m.getType() +
"\nReason: No Route Found with no excluded neghbours");
}
}
else {
int index = this.inTransitMessages.indexOf(m);
MessageWrapper wm = (MessageWrapper)this.inTransitMessages.get(index);
if(m.getType() != 2){
/*if (wm.getRetrasmissions() < m.getRetrasmissions() &&
m.getRetrasmissions() < Ant.maxRetransmissionsForceDirection) {
wm.notToBeConsidered = new ArrayList();//Collections.synchronizedList(new ArrayList())
}
else */if (!wm.notToBeConsidered.contains(wm.getRoutedTo())) {
wm.notToBeConsidered.add(wm.getRoutedTo());
this.generateNetModificationAlert(wm.getMessage(), wm.getRoutedTo());
}
_logger.debug(this.getShortId() +
": Message with id = " +
m.getAck_Id() + " type = " + m.getType() +
" returned. Not considering node " +
wm.getRoutedTo());
Neighbour selectedNeighbour = this.checkForRoute(m, requirer, wm.notToBeConsidered, true);
if(selectedNeighbour != null){
SenderThread[] st = new SenderThread[1];
st[0] = selectedNeighbour.route(m);
return st;
}
if(wm.notToBeConsidered.size() == 0){
ArrayList unreachableNeighbours = new ArrayList();
unreachableNeighbours.add(m.getDest());
this.generateNetModificationAlert(unreachableNeighbours, requirer);
}
throw new NullNeighbourException(this.getShortId() +
": Destination node " +
m.getDest().substring(0,10) +
" unreachable for message from node " +
(m.getSource().length() > 0 ? m.getSource().substring(0,10) : m.getSource()) + " with id " +
m.getAck_Id() +
" type = " + m.getType() +
"\nReason: No Route Found Node " +
this.getShortId() +
" excluded all its " +
wm.notToBeConsidered.size() +
" neghbours " + m);
}else{ // m.getType() == 2
this.traceMessage(m, requirer, "");
_logger.debug(this.getShortId() +
": D Flooded message with id = " +
m.getAck_Id() + " type = " +
m.getType() +
" returned. Killing!");
return null;
}
}
}
else if (m.getDest().equals(this.getIdent())) {
if (m.getType() == 0 && !m.getSource().equals("")) {
_logger.debug(this.getShortId() +
": Received Message sending Ack for message with id = " +
m.getAck_Id() + " type = " + m.getType());
MessageWrapper toBeStored = new MessageWrapper(m, requirer);
this.traceHints(m, requirer);
this.traceDeliveredMessage(toBeStored);
Message ackMessage = new Message();
ackMessage.fillMessageProperties(this.getIdent(), "",
m.getSource(), 1,
m.getAck_Id()
);
MessageWrapper wm = new MessageWrapper(ackMessage, requirer);
if (!wm.getMessage().getSource().equals("") && wm.getMessage().getSource().equals(this.getIdent())) {
try {
MessageSigner.getInstance().sign(wm.getMessage());
}
catch (Exception e) {
_logger.error("Failed signing message", e);
}
}
SenderThread[] st = null;
Neighbour n = null;
if(m.getSourceAddress().equals("")){
try{
n = new DirectNeighbour(requirer, this);
}catch(Exception e){
n = this.getNeighbour(requirer);
}
}
else{
try{
n = new DirectNeighbour(m.getSourceAddress(), this);
}catch(Exception e){
n = this.getNeighbour(requirer);
}
}
if (n != null) {
st = new SenderThread[1];
st[0] = n.route(new Message(wm));
_logger.debug(this.getShortId() +
": D1 Forwarding message with id = " +
wm.getMessage().getAck_Id() + " type = " +
wm.getMessage().getType() +
" to id = " + requirer);
}
else {
ArrayList unreachableNeighbours = new ArrayList();
unreachableNeighbours.add(wm.getMessage().getDest());
this.generateNetModificationAlert(unreachableNeighbours, this.getIdent());
throw new NullNeighbourException(this.getShortId() +
": Destination node " +
wm.getMessage().getDest().substring(0,10) +
" unreachable for message from node " +
(wm.getMessage().getSource().length() > 0 ? wm.getMessage().getSource().substring(0,10) : wm.getMessage().getSource()) + " with id " +
wm.getMessage().getAck_Id() +
" type = " + wm.getMessage().getType() +
"\nReason: No Route Found Node " +
this.getShortId() +
" excluded all its " +
wm.notToBeConsidered.size() +
" neghbours");
}
this.processMessage(m, r);
return st;
}
else if ( (m.getType() == 0 || m.getType() == 1) &&
m.getSource().equals("")) {
_logger.debug(this.getShortId() +
": Received Message with masked source id = " +
m.getAck_Id() + " type = " + m.getType());
this.processMessage(m, r);
return null;
}
else if (m.getType() == 1) {
if (this.getMessage(m.getAck_Id()) != null) {
MessageWrapper movingMessage = null;
movingMessage = (MessageWrapper)this.getMessage(m.getAck_Id());
if (movingMessage != null) {
if(movingMessage.getMessage().getType() == 2){
Message broadTracer;
if(m instanceof QueryMessage)
broadTracer = new QueryMessage((QueryMessage)m);
else
broadTracer = new Message(m);
broadTracer.fillMessageProperties(m.getDest(), movingMessage.getMessage().getSourceAddress(), m.getSource(), 2, m.getAck_Id());
broadTracer.invalidate();
MessageWrapper broadTracerWrapper = new MessageWrapper(broadTracer, this.getIdent());
broadTracerWrapper.setRoutedTo(((Router)Thread.currentThread()).getRequirer());
this.traceDeliveredMessage(broadTracerWrapper);
}else{
movingMessage.getMessage().invalidate();
this.myMessages.remove(movingMessage);
this.traceDeliveredMessage(movingMessage);
}
}
_logger.debug(this.getShortId() +
": Message succesfully routed id = " +
m.getAck_Id() +
" type = " + m.getType());
this.processMessage(m, r);
return null;
}
else {
_logger.debug(this.getShortId() +
": (Retransmission) Message succesfully routed id = " +
m.getAck_Id() +
" type = " + m.getType());
this.processMessage(m, r);
return null;
}
}
else {
throw new Exception(this.getShortId() +
": There is something strange(2) for message with id = " +
m.getAck_Id() + " type = " + m.getType());
}
}
else {
throw new Exception(this.getShortId() +
": There is something strange(3) for message with id = " +
m.getAck_Id() +
" type = " + m.getType());
}
}
catch (Exception e) {
_logger.error(this.getShortId() + " routing error["+requirer+"]: ", e);
return null;
}
}
private SenderThread[] routeMyMessage(MessageWrapper wm) throws Exception {
if (!wm.getMessage().getSource().equals("") && wm.getMessage().getSource().equals(this.getIdent())) {
try {
MessageSigner.getInstance().sign(wm.getMessage());
}
catch (Exception e) {
_logger.error("Failed signing broadcast message", e);
}
}
if(wm.getMessage().getType() != 2){
Neighbour n = this.checkForRoute(wm, wm.notToBeConsidered);
if (n != null) {
SenderThread[] st = new SenderThread[1];
st[0] = n.route(wm.getMessage());
return st;
}
else {
if(wm.notToBeConsidered.size() == 0){
ArrayList unreachableNeighbours = new ArrayList();
unreachableNeighbours.add(wm.getMessage().getDest());
this.generateNetModificationAlert(unreachableNeighbours, this.getIdent());
}
throw new Exception(this.getShortId() +
": Destination unreachable for message with id = " +
wm.getMessage().getAck_Id().substring(0,10) + " type = " +
wm.getMessage().getType());
}
}else{
ArrayList threadsList = new ArrayList();
int floodedMessages = 0;
int routeProbability = 25 + (int)(System.currentTimeMillis() % 50);
int queryDieProbability = 5 + (int)(System.currentTimeMillis() % 10);
int querySeedModificationProbability = 50 + (int)(System.currentTimeMillis() % 25);
double mustDie = ((QueryMessage)wm.getMessage()).getNextRandomDoubleAndRollback() * 100;
List neighboursShuffled = (ArrayList)((ArrayList)this.getNeighbours()).clone();
Collections.shuffle(neighboursShuffled);
for (int x = 0; x < neighboursShuffled.size() && !(mustDie < queryDieProbability); x++) {
NeighbourAnt n = (NeighbourAnt)neighboursShuffled.get(x);
double mustRoute = Math.random() * 100;
if(mustRoute < (floodedMessages > 0 ?
100 * Math.pow(routeProbability / 100.0, (floodedMessages + 1.0)):
routeProbability)){
try{
QueryMessage copy = new QueryMessage((QueryMessage)wm.getMessage());
double modifySeed = Math.random() * 100;
if(modifySeed < querySeedModificationProbability) copy.getNextRandomDouble();
SenderThread broadSender = n.route(copy);
threadsList.add(broadSender);
_logger.debug(this.getShortId() +
": Flooding message with id = " +
wm.getMessage().getAck_Id() + " type = " +
wm.getMessage().getType() +
" to id = " +
n.getIdent());
}
catch (Exception e) {
_logger.error("Cannot flood to neighbour", e);
}
}
}
this.traceMyMessage(wm, "");
SenderThread[] st = new SenderThread[threadsList.size()];
for (int x = 0; x < threadsList.size(); x++)
st[x] = (SenderThread) threadsList.get(x);
return st;
}
}
private int changeThreadPriority(Message m){
int oldPriority = Thread.currentThread().getPriority();
if (m instanceof ControlMessage ||
m instanceof FileTransferEndControlMessage ||
m instanceof FileTransferErrorControlMessage ||
m instanceof FileSizePullErrorControlMessage ||
m instanceof FileInfosPullErrorControlMessage ||
m instanceof HttpTransferEndControlMessage ||
m instanceof HttpInterruptTransferMessage ||
m instanceof SecureConnectionErrorControlMessage ||
m instanceof NetModificationAlert) {
Thread.currentThread().setPriority(10);
}
else if (m instanceof SecurityRequestMessage ||
m instanceof SecurityResponseMessage ||
m instanceof FilePullMessage ||
m instanceof FilePushMessage ||
m instanceof FileInfosPullMessage ||
m instanceof FileInfosPushMessage ||
m instanceof HttpRequestMessage) {
Thread.currentThread().setPriority(10);
}
else if (m instanceof FileSizePullMessage ||
m instanceof FileSizePushMessage) {
Thread.currentThread().setPriority(8);
}
else if (m instanceof PrivateChatMessage) {
Thread.currentThread().setPriority(7);
}
else if (m instanceof QueryMessage) {
QueryMessage qm = (QueryMessage) m;
if (qm.getQuery() instanceof QueryStringItem ||
qm.getQuery() instanceof QueryHashItem){
Thread.currentThread().setPriority(10); //was 7
}
else if (qm.getQuery() instanceof QueryFileListItem ||
qm.getQuery() instanceof QuerySupernodeItem ||
qm.getQuery() instanceof QueryInetAddressItem ||
qm.getQuery() instanceof QueryRandomItem) {
Thread.currentThread().setPriority(6); // was 2
}
else
Thread.currentThread().setPriority(10);
}
else if (m instanceof HttpResponsePartMessage) {
Thread.currentThread().setPriority(6); // was 4
}
else if (m instanceof FilePartMessage) {
Thread.currentThread().setPriority(6); // was 3
}
else if (m instanceof Message) {
Thread.currentThread().setPriority(6);
}
return oldPriority;
}
public MessageWrapper sendMessage(Message message, String dest,
boolean disableAutoRetransmit,
boolean maskSource) throws
InterruptedException {
int oldPriority = this.changeThreadPriority(message);
String messageID;
try{
Thread.sleep(2);
messageID = this.getIdent() + "@" +
(new DigestManager()).getDigest(System.
currentTimeMillis() + "");
Thread.sleep(2);
}catch(Exception e){messageID = Math.floor(Math.random()*Math.pow(10,32))+"";}
if (!maskSource)
message.fillMessageProperties(this.getIdent(), this.getLocalInetAddress(), dest, 0, messageID);
else
message.fillMessageProperties("", "", dest, 0, messageID);
_logger.debug("There are " + this.failedMessages.size() +
" messages failed!");
_logger.debug("There are " + this.myMessages.size() +
" messages pending!");
_logger.debug(this.getShortId() + ": Sending Message from id = " +
this.getShortId() + " to id = " + dest + " message id = " +
messageID);
MessageWrapper wm = new MessageWrapper(message, this.getIdent());
if (disableAutoRetransmit) {
wm.disableAutoRetransmit();
}
try {
SenderThread[] st = this.route(wm,null,null,null,false,false);
if(st != null){
final SenderThread[] stFinal = st;
Thread waiter = new Thread(){
public void run() {
for(int x = 0; x < stFinal.length; x++){
try{
stFinal[x].join(Router.routeTimeout);
}catch(Exception e){
_logger.error("Cannot join send process",e);
}
if(stFinal[x].isAlive()){
stFinal[x].interruptSending();
}
}
}
};
waiter.start();
}
Thread.currentThread().setPriority(oldPriority);
return wm;
}
catch (Exception e) {
_logger.error(this.getShortId() + "",e);
Thread.currentThread().setPriority(oldPriority);
return null;
}
}
public MessageWrapper sendBroadcastMessage(Message message) {
int oldPriority = this.changeThreadPriority(message);
String messageID;
try{
Thread.sleep(2);
messageID = this.getIdent() + "@" +
(new DigestManager()).getDigest(System.
currentTimeMillis() + "");
Thread.sleep(2);
}catch(Exception e){messageID = Math.floor(Math.random()*Math.pow(10,32))+"";}
SecureRandom sr = new SecureRandom();
byte[] randomDest = new byte[10];
sr.nextBytes(randomDest);
String dest = Base16.toHexString(randomDest);
message.fillMessageProperties(this.getIdent(), this.getLocalInetAddress(), dest, 2, messageID);
MessageWrapper wm = new MessageWrapper(message, this.getIdent());
wm.disableAutoRetransmit();
try {
SenderThread st[] = this.route(wm,null,null,null,false,false);
if(st != null){
final SenderThread[] stFinal = st;
Thread waiter = new Thread(){
public void run() {
for(int x = 0; x < stFinal.length; x++){
try{
stFinal[x].join(Router.routeTimeout);
}catch(Exception e){
_logger.error("Cannot join send process",e);
}
if(stFinal[x].isAlive()){
stFinal[x].interruptSending();
}
}
}
};
waiter.start();
}
Thread.currentThread().setPriority(oldPriority);
return wm;
}
catch (Exception e) {
_logger.error(this.getShortId() + "",e);
Thread.currentThread().setPriority(oldPriority);
return wm;
}
}
private SenderThread[] retransmitMessage(MessageWrapper wm) {
try {
Thread.sleep(1000);
}
catch (Exception e) {
_logger.error(this.getShortId() + "",e);
}
try {
if (!wm.getMessage().getSource().equals("") && wm.getMessage().getSource().equals(this.getIdent())) {
try {
MessageSigner.getInstance().sign(wm.getMessage());
}
catch (Exception e) {
_logger.error("Failed signing broadcast message", e);
}
}
if (wm.getRetrasmissions() >= Ant.maxRetransmissions)
throw new Exception("Retransmissions exceeeded");
_logger.debug(this.getShortId() + ": Retransmitting Message from id = " +
this.getShortId() + " to id = " + wm.getMessage().getDest() +
" message id = " + wm.getMessage().getAck_Id());
wm.getMessage().resetDelivered();
/*if (wm.getRetrasmissions() < Ant.maxRetransmissionsForceDirection) {
wm.notToBeConsidered = new ArrayList();//Collections.synchronizedList(new ArrayList())
}
else*/ if (!wm.notToBeConsidered.contains(wm.getRoutedTo())) {
wm.notToBeConsidered.add(wm.getRoutedTo());
this.generateNetModificationAlert(wm.getMessage(), wm.getRoutedTo());//
}
Neighbour n = this.checkForRoute(wm, wm.notToBeConsidered);
if (n != null) {
SenderThread[] st = new SenderThread[1];
st[0] = n.route(wm.getMessage());
return st;
}else{
if(wm.notToBeConsidered.size() == 0){
ArrayList unreachableNeighbours = new ArrayList();
unreachableNeighbours.add(wm.getMessage().getDest());
this.generateNetModificationAlert(unreachableNeighbours, this.getIdent());
}
throw new Exception(this.getShortId() +
": Destination (retransmission) unreachable for message with id = " +
wm.getMessage().getAck_Id().substring(0,10) + " type = " +
wm.getMessage().getType());
}
}
catch (Exception e) {
_logger.error(this.getShortId() + "",e);
return null;
}
}
public Neighbour checkForRoute(MessageWrapper wm, List notToBeConsidered) throws Exception{
Neighbour selectedNeighbour = null;
String neighbourId = null;
RoutingTableElement rte = (RoutingTableElement)this.routingTable.get(wm.getMessage().getDest());
if(rte != null && rte.getIP() != null){
try{
selectedNeighbour = new DirectNeighbour(rte.getIP(), this);
neighbourId = selectedNeighbour.getIdent();
}
catch (Exception e) {
rte.firewalled = true;
}
}
if(selectedNeighbour == null){
for (int x = 0; rte != null && x < rte.getRoutes().size(); x++) {
String routingTo = (String) rte.getRoutes().get(x);
Neighbour n;
try{
n = new DirectNeighbour(routingTo, this);
}catch(Exception e){
n = this.getNeighbour(routingTo);
}
if (n == null || notToBeConsidered.contains(routingTo)) {
continue;
}
else if (selectedNeighbour == null ||
selectedNeighbour.getQueuedMessages() > n.getQueuedMessages()) {
selectedNeighbour = n;
neighbourId = routingTo;
}
}
}
if (selectedNeighbour != null && neighbourId != null) {
rte.setLastTimeUsed();
if(wm.getMessage().getType() != 1) this.traceMyMessage(wm, neighbourId);
_logger.debug(this.getShortId() + ": Routing message with id = " +
wm.getMessage().getAck_Id() + " type = " +
wm.getMessage().getType() + " to id = " +
neighbourId);
}
return selectedNeighbour;
}
public boolean existRouteTo(String dest){
RoutingTableElement rte = (RoutingTableElement)this.routingTable.get(dest);
if(rte != null && (rte.getIP() != null || rte.getRoutes().size() > 0))
return true;
else
return false;
}
public Neighbour checkForRoute(Message m, String requirer, List notToBeConsidered, boolean alreadySeen) throws Exception{
Neighbour selectedNeighbour = null;
String neighbourId = null;
RoutingTableElement rte = (RoutingTableElement)this.routingTable.get(m.getDest());
if(rte != null && rte.getIP() != null){
try{
selectedNeighbour = new DirectNeighbour(rte.getIP(), this);
neighbourId = selectedNeighbour.getIdent();
}catch(Exception e){
rte.firewalled = true;
}
}
if(selectedNeighbour == null){
for (int x = 0; rte != null && x < rte.getRoutes().size(); x++) {
String routingTo = (String) rte.getRoutes().get(x);
Neighbour n;
try{
n = new DirectNeighbour(routingTo, this);
}catch(Exception e){
n = this.getNeighbour(routingTo);
}
if (n == null || notToBeConsidered.contains(routingTo) ||
routingTo.equals(requirer)) {
continue;
}
else if (selectedNeighbour == null ||
selectedNeighbour.getQueuedMessages() >
n.getQueuedMessages()) {
selectedNeighbour = n;
neighbourId = routingTo;
}
}
}
if (selectedNeighbour != null && neighbourId != null) {
rte.setLastTimeUsed();
if(alreadySeen){
int index = this.inTransitMessages.indexOf(m);
MessageWrapper wm = (MessageWrapper)this.inTransitMessages.get(index);
wm.setRoutedTo(neighbourId);
}else{
this.traceMessage(m, requirer, neighbourId);
}
_logger.debug(this.getShortId() + ": Routing message with id = " +
m.getAck_Id() + " type = " +
m.getType() + " to id = " +
neighbourId);
}
return selectedNeighbour;
}
public void uPnPMapping(){
try{
UPnPManager upnpManager = UPnPManager.instance();
int result = 0;
if (upnpManager.isNATPresent())
result = upnpManager.mapPort(this.serverPort);
if (result > 0) {
this.localNattedInetAddress = this.localInetAddress;
this.localInetAddress = upnpManager.getNATAddress().getHostAddress();
this.localNattedPort = this.serverPort;
this.serverPort = result;
}
}catch (Exception ex) {
_logger.error("", ex);
}
}
public void run() {
try {
ss = new SecureServer(this, this.serverPort); //Does also UPnP port mapping
if (ss.getServerSocket() == null) return;
if(this.upnp) UPnPManager.instance().startDevice();
//Update LAN address
ants.p2p.query.ServerInfo si = new ants.p2p.query.ServerInfo("", getLanAddress(), new Integer(getServerPort()), "");
_logger.info("Updating UPnP LAN address: "+si);
ants.p2p.utils.net.UPnPManager.instance().setCurrentLanAddress(si);
while (!terminate) {
try {
System.gc();
_logger.info("Running ANts main loop...");
for (int z = 0; z < 3; z++) {
int sleepTime = 1000;
for(int indx = 0; indx < 60; indx++){
this.sleep(sleepTime);
//this.propertyChangeSupport.firePropertyChange("updatePacketCompressionStats", null, null);
}
try {
for (int x = this.neighbours.size() - 1; x >= 0; x--) {
for (int y = x - 1; y >= 0; y--) {
if (this.neighbours.get(x).equals(this.neighbours.get(y))) {
this.removeNeighbour( (NeighbourAnt)this.neighbours.get(x));
_logger.info("Removing duplicated neighbour...");
break;
}
}
}
boolean[] activeUploadNeighbour = new boolean[this.neighbours.size()];
boolean[] activeDownloadNeighbour = new boolean[this.neighbours.size()];
for (int x = 0; x < this.neighbours.size(); x++) {
NeighbourAnt toBeRemoved = (NeighbourAnt)this.neighbours.get(x);
_logger.info(toBeRemoved + " Alive: " + toBeRemoved.isAlive() + " Connected:"+toBeRemoved.isConnected());
if (! toBeRemoved.isAlive() ||
! toBeRemoved.isConnected()) {
this.removeNeighbour(toBeRemoved);
propertyChangeSupport.firePropertyChange("removedNeighbour", null, toBeRemoved);
_logger.info("Removing stuck neighbour...");
}else if(toBeRemoved.getLastProbedAt() < System.currentTimeMillis() - probeCheckInterval) {
toBeRemoved.terminate();
propertyChangeSupport.firePropertyChange("removedNeighbour", null, toBeRemoved);
_logger.info("Removing stuck neighbour...");
}else{
NeighbourAnt current = (NeighbourAnt)this.neighbours.get(x);
if (System.currentTimeMillis() - current.getLastActiveDownloadTime() >
Ant.messageTimeout * Ant.maxRetransmissions) {
activeDownloadNeighbour[x] = false;
}else{
activeDownloadNeighbour[x] = true;
}
if(System.currentTimeMillis() - current.getLastActiveUploadTime() >
Ant.messageTimeout * Ant.maxRetransmissions){
activeUploadNeighbour[x] = false;
}else{
activeUploadNeighbour[x] = true;
}
//this.checkNeighboursActivity(activeDownloadNeighbour, activeUploadNeighbour);
}
}
}
catch (Exception e) {
_logger.error(this.getShortId() + ": Error in removing stuck neighbour", e);
}
}
//synchronized(this){
while (this.failedMessages.size() > Ant.maxFailedMessageToTrace) {
this.failedMessages.remove(0);
}
//}
Enumeration netMods = this.netModifications.keys();
while (netMods.hasMoreElements()) {
String mod = (String) netMods.nextElement();
if (System.currentTimeMillis() -
( (Long)this.netModifications.get(mod)).longValue() >
netModificationsTimeout) {
this.netModifications.remove(mod);
}
}
Enumeration routingTableElementKeys = this.routingTable.keys();
ArrayList un = new ArrayList();
while (routingTableElementKeys.hasMoreElements()) {
String routingTableElementKey = (String) routingTableElementKeys.nextElement();
if (System.currentTimeMillis() -
( (RoutingTableElement)this.routingTable.get(routingTableElementKey)).getLastTimeUsed() >
routeInactiveTimeout) {
this.routingTable.remove(routingTableElementKey);
un.add(routingTableElementKey);
}
}
this.generateNetModificationAlert(un, this.getIdent());
//synchronized (this.myMessages) {
if (this.myMessages.size() != 0) {
_logger.debug(this.getShortId() + ": Processing " +
this.myMessages.size() +
" messages for eventual retransmission...");
_logger.debug("There are " + this.failedMessages.size() +
" messages failed!");
ArrayList toBeRemoved = new ArrayList();
for (int x = 0; x < this.myMessages.size(); x++) {
MessageWrapper wm = (MessageWrapper)this.myMessages.get(x);
if (wm.getLifetime() > Ant.messageTimeout) {
if (wm.getRetrasmissions() + 1 < Ant.maxRetransmissions) {
wm.retrasmitted(this);
SenderThread[] st = this.route(wm,null,null,null,false,true);
if (st != null) {
final SenderThread[] stFinal = st;
Thread waiter = new Thread() {
public void run() {
for (int x = 0; x < stFinal.length; x++) {
try {
stFinal[x].join(Router.routeTimeout);
}
catch (Exception e) {
_logger.error("Cannot join send process", e);
}
if (stFinal[x].isAlive()) {
stFinal[x].interruptSending();
}
}
}
};
waiter.start();
}
_logger.debug("Retransmited Message: " +
wm.getMessage().getAck_Id() +
wm.getMessage().getType());
}
else {
if (wm.getMessage().getType() == 2) {
_logger.info(this.getShortId() +
": Broadcast message timed out " +
wm.getMessage().getDest());
}
else if (wm.getMessage().getType() == 0 &&
wm.getMessage().getSource().equals("")) {
_logger.info(this.getShortId() +
": Masked message timed out " +
wm.getMessage().getDest());
}
else {
_logger.info(this.getShortId() +
": Destination unreachable " +
wm.getMessage().getDest().substring(0,10));
//synchronized (this.failedMessages) {
this.failedMessages.add(wm);
//}
}
toBeRemoved.add(wm);
}
}
}
synchronized(this){
for (int x = toBeRemoved.size() - 1; x >= 0; x--) {
MessageWrapper wm = (MessageWrapper) toBeRemoved.get(x);
if (this.myMessages.remove(wm)) {
_logger.info("Removed Message from myMessages: " +
wm.getMessage().getAck_Id().substring(0,10) +
wm.getMessage().getType());
}
}
}
//this.myMessages.trimToSize();
}
//}
}catch (Exception cycleException) {
_logger.error("ANt(ID_" + this.getShortId() + ") main cycle error!",
cycleException);
}
}
_logger.error("ANts MAIN ENGINE TERMINATED********************************************************");
}
catch (Exception e) {
this.terminate = true;
_logger.info(this.getShortId() + " - Failure in setting up Ant server port", e);
_logger.error("ANts MAIN ENGINE TERMINATED********************************************************");
}
}
private void checkNeighboursActivity(boolean[] activeDownload, boolean[] activeUpload){
int activeNumber = 0;
int activeUp = 0;
int activeDown = 0;
final int maxActiveOneWay = (int)Math.floor(Ant.maxNeighbours * 2.0 / 3);
for(int x = 0; x < activeDownload.length; x++){
if (activeDownload[x] == true) {
activeDown++;
}
if (activeUpload[x] == true) {
activeUp++;
}
if (activeUpload[x] == true ||
activeDownload[x] == true) {
activeNumber++;
}
}
if((this.neighbours.size() - activeNumber) > Ant.maxNeighbours * 2.0 / 3){
int toBeRemoved = -1;
long currentPing = 0;
for (int x = 0; x < this.neighbours.size(); x++) {
NeighbourAnt current = (NeighbourAnt)this.neighbours.get(x);
if(activeDownload[x] == false && activeUpload[x] == false &&
current.getTimeElapsed() > currentPing){
currentPing = current.getTimeElapsed();
toBeRemoved = x;
}
}
if(toBeRemoved >= 0){
_logger.info("Neighbour "+this.neighbours.get(toBeRemoved)+" is not active up/down, removing...");
this.removeNeighbour( (NeighbourAnt)this.neighbours.get(toBeRemoved));
}
}
else if (activeNumber > Ant.maxNeighbours * 2.0 / 3) {
if (activeUp == this.neighbours.size() &&
(activeUp - activeDown) > maxActiveOneWay) {
int toBeRemoved = -1;
long currentPing = 0;
for (int x = 0; x < this.neighbours.size(); x++) {
NeighbourAnt current = (NeighbourAnt)this.neighbours.get(x);
if (activeDownload[x] == false && activeUpload[x] == true &&
current.getTimeElapsed() > currentPing) {
currentPing = current.getTimeElapsed();
toBeRemoved = x;
}
}
if (toBeRemoved >= 0) {
_logger.info("Neighbour " + this.neighbours.get(toBeRemoved) +
" is not active down, removing...");
this.removeNeighbour( (NeighbourAnt)this.neighbours.get(toBeRemoved));
}
}
else if (activeDown == this.neighbours.size() &&
(activeDown - activeUp) > maxActiveOneWay) {
int toBeRemoved = -1;
long currentPing = 0;
for (int x = 0; x < this.neighbours.size(); x++) {
NeighbourAnt current = (NeighbourAnt)this.neighbours.get(x);
if (activeDownload[x] == true && activeUpload[x] == false &&
current.getTimeElapsed() > currentPing) {
currentPing = current.getTimeElapsed();
toBeRemoved = x;
}
}
if (toBeRemoved >= 0) {
_logger.info("Neighbour " + this.neighbours.get(toBeRemoved) +
" is not active up, removing...");
this.removeNeighbour( (NeighbourAnt)this.neighbours.get(toBeRemoved));
}
}
}
}
protected void processMessage(Message m, Router r) throws Exception {
_logger.debug(this.getShortId() +
": Received Message = " +
m.getAck_Id() +
" type = " + m.getType() +
" from a peer running version: " + m.getVersion());
}
public PropertyChangeSupport getPropertyChangeSupport() {
return this.propertyChangeSupport;
}
public void disconnect() {
try {
for (int x = 0; x < this.neighbours.size(); x++) {
NeighbourAnt na = ( (NeighbourAnt)this.neighbours.get(x));
na.terminate();
}
if (ss.getServerSocket() != null) {
ss.getServerSocket().close();
}
UPnPManager.instance().stopDevice();
if(UPnPManager.instance().mappingsExist()){
UPnPManager.instance().clearMappingsOnShutdown();
this.localInetAddress = this.localNattedInetAddress;
this.serverPort = this.localNattedPort;
}
this.terminate = true;
}
catch (Exception e) {
_logger.error(this.getShortId() + "",e);
}
}
public boolean isDisconnected() {
return this.terminate;
}
}
The table below shows all metrics for Ant.java.
| Metric | Value | Description | |
|---|---|---|---|
| BLOCKS | 384.00 | Number of blocks | |
| BLOCK_COMMENT | 15.00 | Number of block comment lines | |
| COMMENTS | 52.00 | Comment lines | |
| COMMENT_DENSITY | 0.03 | Comment density | |
| COMPARISONS | 532.00 | Number of comparison operators | |
| CYCLOMATIC | 524.00 | Cyclomatic complexity | |
| DECL_COMMENTS | 5.00 | Comments in declarations | |
| DOC_COMMENT | 0.00 | Number of javadoc comment lines | |
| ELOC | 1530.00 | Effective lines of code | |
| EXEC_COMMENTS | 21.00 | Comments in executable code | |
| EXITS | 184.00 | Procedure exits | |
| FUNCTIONS | 60.00 | Number of function declarations | |
| HALSTEAD_DIFFICULTY | 169.77 | Halstead difficulty | |
| HALSTEAD_EFFORT | 0.00 | Halstead effort | |
| INTERFACE_COMPLEXITY | 182.00 | Interface complexity | |
| JAVA0001 | 1.00 | JAVA0001 Package name does not contain only lower case letters | |
| JAVA0002 | 1.00 | JAVA0002 Package name does not begin with a top level domain name or country code | |
| JAVA0003 | 1.00 | JAVA0003 Minimize use of on-demand (.*) imports | |
| JAVA0004 | 0.00 | JAVA0004 Unnecessary import from java.lang | |
| JAVA0005 | 1.00 | JAVA0005 Imports not in specified order | |
| JAVA0006 | 0.00 | JAVA0006 Empty finally block | |
| JAVA0007 | 22.00 | JAVA0007 Should not declare public field | |
| JAVA0008 | 1.00 | JAVA0008 Empty catch block | |
| JAVA0009 | 0.00 | JAVA0009 Protected member in final class | |
| JAVA0010 | 0.00 | JAVA0010 Non-instantiable class does not contain a non-private static member | |
| JAVA0011 | 0.00 | JAVA0011 Abstract class does not contain an abstract method | |
| JAVA0012 | 0.00 | JAVA0012 Non-constructor method with same name as declaring class | |
| JAVA0013 | 0.00 | JAVA0013 Non-blank final field is not static | |
| JAVA0014 | 0.00 | JAVA0014 Class with only static members has non-private constructor | |
| JAVA0015 | 0.00 | JAVA0015 Package class contains public nested type | |
| JAVA0016 | 0.00 | JAVA0016 Abstract class contains public constructor | |
| JAVA0017 | 0.00 | JAVA0017 Class name does not have required form | |
| JAVA0018 | 0.00 | JAVA0018 Method name does not have required form | |
| JAVA0019 | 0.00 | JAVA0019 Interface name does not have required form | |
| JAVA0020 | 0.00 | JAVA0020 Field name does not have required form | |
| JAVA0021 | 0.00 | JAVA0021 Interface method name does not have required form | |
| JAVA0022 | 0.00 | JAVA0022 Static final field name does not have required form | |
| JAVA0023 | 0.00 | JAVA0023 Empty finalize method | |
| JAVA0024 | 0.00 | JAVA0024 Empty class | |
| JAVA0025 | 0.00 | JAVA0025 Method override is empty | |
| JAVA0026 | 0.00 | JAVA0026 Finalize method with parameters | |
| JAVA0029 | 1.00 | JAVA0029 Private method not used | |
| JAVA0030 | 0.00 | JAVA0030 Private field not used | |
| JAVA0031 | 6.00 | JAVA0031 Case statement not properly closed | |
| JAVA0032 | 0.00 | JAVA0032 Switch statement missing default | |
| JAVA0033 | 0.00 | JAVA0033 default: not last case in switch statement | |
| JAVA0034 | 91.00 | JAVA0034 Missing braces in if statement | |
| JAVA0035 | 2.00 | JAVA0035 Missing braces in for statement | |
| JAVA0036 | 0.00 | JAVA0036 Missing braces in while statement | |
| JAVA0038 | 0.00 | JAVA0038 Non-case label in switch statement | |
| JAVA0039 | 0.00 | JAVA0039 Break statement with label | |
| JAVA0040 | 1.00 | JAVA0040 Switch statement contains N cases (maximum: M) | |
| JAVA0041 | 0.00 | JAVA0041 Nested synchronized block | |
| JAVA0042 | 0.00 | JAVA0042 Empty synchronized statement | |
| JAVA0043 | 0.00 | JAVA0043 Inner class does not use outer class | |
| JAVA0044 | 0.00 | JAVA0044 Serializable class with no instance variables | |
| JAVA0045 | 0.00 | JAVA0045 Serializable class with only transient fields | |
| JAVA0046 | 0.00 | JAVA0046 Name of class not derived from Exception ends with 'Exception' | |
| JAVA0047 | 0.00 | JAVA0047 Serializable class derives from invalid base class | |
| JAVA0048 | 0.00 | JAVA0048 Name of class derived from Exception does not end with 'Exception' | |
| JAVA0049 | 40.00 | JAVA0049 Nested block at depth N (maximum: M) | |
| JAVA0050 | 0.00 | JAVA0050 Class derives from java.lang.Error | |
| JAVA0051 | 0.00 | JAVA0051 Class derives from java.lang.RuntimeException | |
| JAVA0052 | 0.00 | JAVA0052 Class derives from java.lang.Throwable | |
| JAVA0053 | 0.00 | JAVA0053 Unused label | |
| JAVA0054 | 0.00 | JAVA0054 Inheritance depth N exceeds maximum M | |
| JAVA0055 | 0.00 | JAVA0055 Class should be interface | |
| JAVA0056 | 0.00 | JAVA0056 Unnecessary abstract modifier for interface or annotation | |
| JAVA0057 | 0.00 | JAVA0057 Unnecessary default constructor | |
| JAVA0058 | 0.00 | JAVA0058 Constructor calls super() | |
| JAVA0059 | 0.00 | JAVA0059 Method override only calls super() | |
| JAVA0061 | 0.00 | JAVA0061 Inaccessible member in anonymous class | |
| JAVA0062 | 0.00 | JAVA0062 Public class missing public member or protected constructor | |
| JAVA0063 | 0.00 | JAVA0063 Identifier name should not contain '$' | |
| JAVA0064 | 1.00 | JAVA0064 N variations of identifier name (maximum: M) | |
| JAVA0065 | 0.00 | JAVA0065 Unnecessary final modifier for method in final class | |
| JAVA0066 | 0.00 | JAVA0066 Unnecessary modifier for interface nested type | |
| JAVA0067 | 1.00 | JAVA0067 Array descriptor on identifier name | |
| JAVA0068 | 0.00 | JAVA0068 Modifiers not declared in recommended order | |
| JAVA0071 | 0.00 | JAVA0071 Strings compared with == | |
| JAVA0073 | 0.00 | JAVA0073 Integer division in floating-point context | |
| JAVA0074 | 0.00 | JAVA0074 Use of Object.notify() | |
| JAVA0075 | 2.00 | JAVA0075 Method parameter hides field | |
| JAVA0076 | 89.00 | JAVA0076 Use of magic number | |
| JAVA0077 | 0.00 | JAVA0077 Private field not used in declaring class | |
| JAVA0078 | 0.00 | JAVA0078 Floating point values compared with == | |
| JAVA0079 | 11.00 | JAVA0079 Use of instance to reference static member | |
| JAVA0080 | 0.00 | JAVA0080 Import declaration not used | |
| JAVA0081 | 10.00 | JAVA0081 Boolean literal in comparison | |
| JAVA0082 | 1.00 | JAVA0082 Unnecessary widening cast | |
| JAVA0083 | 2.00 | JAVA0083 Unnecessary instanceof test | |
| JAVA0084 | 0.00 | JAVA0084 Should use compound assignment operator | |
| JAVA0085 | 0.00 | JAVA0085 Use of sun.* class | |
| JAVA0087 | 7.00 | JAVA0087 Use of Thread.sleep() | |
| JAVA0089 | 0.00 | JAVA0089 Use of restricted package | |
| JAVA0092 | 0.00 | JAVA0092 Use of restricted type | |
| JAVA0093 | 0.00 | JAVA0093 Redundant assignment | |
| JAVA0094 | 0.00 | JAVA0094 Field hides a superclass field | |
| JAVA0095 | 0.00 | JAVA0095 Uninitialized private field | |
| JAVA0096 | 0.00 | JAVA0096 Field in nested class hides outer field | |
| JAVA0098 | 0.00 | JAVA0098 Minimize use of implicit field initializers | |
| JAVA0100 | 1.00 | JAVA0100 Class contains N non-final fields (maximum: M) | |
| JAVA0101 | 0.00 | JAVA0101 Unnecessary modifier for field in interface | |
| JAVA0102 | 0.00 | JAVA0102 Last statement in finalize() not super.finalize() | |
| JAVA0103 | 0.00 | JAVA0103 Explicit call to finalize() | |
| JAVA0104 | 0.00 | JAVA0104 finalize() only calls super.finalize() | |
| JAVA0105 | 0.00 | JAVA0105 Duplicate import declaration | |
| JAVA0106 | 0.00 | JAVA0106 Unnecessary import from current package | |
| JAVA0108 | 0.00 | JAVA0108 Incorrect javadoc: no @param tag for 'parameter' | |
| JAVA0109 | 0.00 | JAVA0109 Incorrect javadoc: no parameter 'parameter' | |
| JAVA0110 | 0.00 | JAVA0110 Incorrect javadoc: no @return tag | |
| JAVA0111 | 0.00 | JAVA0111 Incorrect javadoc: @return tag for void method | |
| JAVA0112 | 0.00 | JAVA0112 Incorrect javadoc: no exception 'exception' in throws | |
| JAVA0113 | 0.00 | JAVA0113 Incorrect javadoc: no @author tag | |
| JAVA0114 | 0.00 | JAVA0114 Incorrect javadoc: no @version tag | |
| JAVA0115 | 0.00 | JAVA0115 Incorrect javadoc: no @throws or @exception tag for 'exception' | |
| JAVA0116 | 22.00 | JAVA0116 Missing javadoc: field 'field' | |
| JAVA0117 | 49.00 | JAVA0117 Missing javadoc: method 'method' | |
| JAVA0118 | 1.00 | JAVA0118 Missing javadoc: type 'type' | |
| JAVA0119 | 0.00 | JAVA0119 Control variable changed within body of for loop | |
| JAVA0123 | 0.00 | JAVA0123 Use all three components of for loop | |
| JAVA0125 | 0.00 | JAVA0125 Continue statement with label | |
| JAVA0126 | 0.00 | JAVA0126 Method declares unchecked exception in throws | |
| JAVA0128 | 0.00 | JAVA0128 Public constructor in non-public class | |
| JAVA0130 | 1.00 | JAVA0130 Non-static method does not use instance fields | |
| JAVA0131 | 0.00 | JAVA0131 Compatible method does not override base | |
| JAVA0132 | 0.00 | JAVA0132 Method overload with compatible signature | |
| JAVA0133 | 0.00 | JAVA0133 Non-synchronized method overrides synchronized method | |
| JAVA0135 | 1.00 | JAVA0135 Only one of Object.equals and Object.hashCode defined: missing 'method' | |
| JAVA0136 | 1.00 | JAVA0136 N methods defined in class (maximum: M) | |
| JAVA0137 | 0.00 | JAVA0137 Non-abstract class missing constructor | |
| JAVA0138 | 2.00 | JAVA0138 N parameters defined for method (maximum: M) | |
| JAVA0139 | 0.00 | JAVA0139 Definition of main other than public static void main(java.lang.String[]) | |
| JAVA0141 | 0.00 | JAVA0141 Unnecessary modifier for method in interface | |
| JAVA0143 | 1.00 | JAVA0143 Synchronized method | |
| JAVA0144 | 9.00 | JAVA0144 Line exceeds maximum M characters | |
| JAVA0145 | 0.00 | JAVA0145 Tab character used in source file | |
| JAVA0150 | 0.00 | JAVA0150 java.lang.Error (or subclass) thrown | |
| JAVA0153 | 0.00 | JAVA0153 Inefficient conversion of integer to string | |
| JAVA0159 | 0.00 | JAVA0159 Inefficient conversion of string to integer | |
| JAVA0160 | 5.00 | JAVA0160 Method does not throw specified exception | |
| JAVA0161 | 0.00 | JAVA0161 Conditional wait() not in loop | |
| JAVA0163 | 0.00 | JAVA0163 Empty statement | |
| JAVA0165 | 0.00 | JAVA0165 Conflicting return statement in finally block | |
| JAVA0166 | 38.00 | JAVA0166 Generic exception caught | |
| JAVA0167 | 0.00 | JAVA0167 ThreadDeath not rethrown | |
| JAVA0169 | 0.00 | JAVA0169 Unnecessary catch block: exception 'exception' | |
| JAVA0170 | 0.00 | JAVA0170 Caught exception not derived from java.lang.Exception | |
| JAVA0171 | 0.00 | JAVA0171 Unused local variable | |
| JAVA0173 | 1.00 | JAVA0173 Unused method parameter | |
| JAVA0174 | 0.00 | JAVA0174 Assigned local variable never used | |
| JAVA0175 | 0.00 | JAVA0175 Successive assignment to variable | |
| JAVA0176 | 0.00 | JAVA0176 Local variable name does not have required form | |
| JAVA0177 | 6.00 | JAVA0177 Variable declaration missing initializer | |
| JAVA0179 | 0.00 | JAVA0179 Local variable hides visible field | |
| JAVA0233 | 0.00 | JAVA0233 Definition of serialVersionUID other than 'private static final long serialVersionUID' | |
| JAVA0234 | 0.00 | JAVA0234 Class is Serializable but does not define serialVersionUID | |
| JAVA0235 | 0.00 | JAVA0235 Class defines serialVersionUID but does not implement Serializable | |
| JAVA0236 | 0.00 | JAVA0236 Attempt to clone an object which does not implement Cloneable | |
| JAVA0237 | 0.00 | JAVA0237 Class implements Cloneable but does not have public clone method | |
| JAVA0238 | 0.00 | JAVA0238 Clone method does not call super.clone() | |
| JAVA0239 | 0.00 | JAVA0239 Class declares 'readObject' or 'writeObject' but does not implement Serializable | |
| JAVA0240 | 0.00 | JAVA0240 Serializable class which declares readObject or writeObject but not both | |
| JAVA0241 | 0.00 | JAVA0241 'readObject' or 'writeObject' should be declared private in Serializable class | |
| JAVA0242 | 0.00 | JAVA0242 Transient field in non-Serializable class | |
| JAVA0243 | 0.00 | JAVA0243 'readResolve' or 'writeReplace' should be declared private or protected | |
| JAVA0244 | 0.00 | JAVA0244 Field or method name in subclass differs only by case from inherited field or method | |
| JAVA0245 | 0.00 | JAVA0245 JUnit TestCase with non-trivial constructor | |
| JAVA0246 | 0.00 | JAVA0246 JUnit assertXXX statement missing message parameter | |
| JAVA0247 | 0.00 | JAVA0247 JUnit 'setUp()' and 'tearDown()' should call super method | |
| JAVA0248 | 0.00 | JAVA0248 JUnit method 'setUp' or 'tearDown' with incorrect signature | |
| JAVA0249 | 0.00 | JAVA0249 JUnit TestCase 'suite()' should be declared static | |
| JAVA0250 | 0.00 | JAVA0250 JUnit TestCase declares testXXX method with incorrect signature | |
| JAVA0251 | 0.00 | JAVA0251 Use '%n' for line breaks in printf/format for platform independence | |
| JAVA0252 | 0.00 | JAVA0252 'enum' is a Java 1.5 reserved word | |
| JAVA0253 | 0.00 | JAVA0253 Not all enum constants consumed in switch statement | |
| JAVA0254 | 0.00 | JAVA0254 Use enhanced for loop construct instead of Iterator | |
| JAVA0255 | 0.00 | JAVA0255 Result of method invocation not used | |
| JAVA0256 | 0.00 | JAVA0256 Assignment of external collection/array to field | |
| JAVA0257 | 0.00 | JAVA0257 Use of 'Constant Interface' anti-pattern | |
| JAVA0258 | 0.00 | JAVA0258 Implement Iterable for foreach compatibility | |
| JAVA0259 | 2.00 | JAVA0259 Return of collection/array field | |
| JAVA0260 | 0.00 | JAVA0260 Use 'enum' instead of Enumerated Type pattern | |
| JAVA0261 | 0.00 | JAVA0261 Use specialized Enum collection types | |
| JAVA0262 | 0.00 | JAVA0262 Use of char in integer context | |
| JAVA0263 | 0.00 | JAVA0263 Long literal ends with 'l' instead of 'L' | |
| JAVA0264 | 1.00 | JAVA0264 Integer math in long context - check for overflow | |
| JAVA0265 | 0.00 | JAVA0265 Use of Throwable.printStackTrace() | |
| JAVA0266 | 0.00 | JAVA0266 Use of System.out | |
| JAVA0267 | 0.00 | JAVA0267 Use of System.err | |
| JAVA0269 | 0.00 | JAVA0269 Contents of StringBuffer never used | |
| JAVA0270 | 5.00 | JAVA0270 Use Java 5.0 enhanced for loop construct to iterate over all elements in an array | |
| JAVA0271 | 0.00 | JAVA0271 Minimize use of on-demand (.*) static imports | |
| JAVA0272 | 1.00 | JAVA0272 Thread.run() called | |
| JAVA0273 | 1.00 | JAVA0273 Non-final derivative of Thread calls start() in constructor | |
| JAVA0274 | 0.00 | JAVA0274 Serializable class has a synchronized readObject() | |
| JAVA0275 | 0.00 | JAVA0275 Serializable class has a synchronized writeObject() and no other synchronized methods | |
| JAVA0276 | 0.00 | JAVA0276 Unnecessary use of String constructor | |
| JAVA0277 | 0.00 | JAVA0277 Iterator.next() implementation does not throw NoSuchElementException | |
| JAVA0278 | 0.00 | JAVA0278 Unnecessary use of Boolean constructor | |
| JAVA0279 | 0.00 | JAVA0279 Serialization method readObject or readObjectNoData calls an overridable method | |
| JAVA0280 | 0.00 | JAVA0280 IllegalMonitorStateException caught | |
| JAVA0281 | 0.00 | JAVA0281 Iterator.next() not called in loop | |
| JAVA0282 | 0.00 | JAVA0282 Call to Iterator.next() in loop which does not test Iterator.hasNext() | |
| JAVA0283 | 4.00 | JAVA0283 Control variable not updated in loop body | |
| JAVA0284 | 1.00 | JAVA0284 Explicit garbage collection | |
| JAVA0285 | 2.00 | JAVA0285 Dereference of potentially null variable | |
| JAVA0286 | 0.00 | JAVA0286 Dereference of null variable | |
| JAVA0287 | 4.00 | JAVA0287 Unnecessary null check | |
| JAVA0288 | 0.00 | JAVA0288 Inconsistent null check | |
| LINES | 2032.00 | Number of lines in the source file | |
| LINE_COMMENT | 37.00 | Number of line comments | |
| LOC | 1876.00 | Lines of code | |
| LOGICAL_LINES | 847.00 | Number of statements | |
| LOOPS | 42.00 | Number of loops | |
| NEST_DEPTH | 12.00 | Maximum nesting depth | |
| OPERANDS | 4674.00 | Number of operands | |
| OPERATORS | 10439.00 | Number of operators | |
| PARAMS | 67.00 | Number of formal parameter declarations | |
| PROGRAM_LENGTH | 15113.00 | Halstead program length | |
| PROGRAM_VOCAB | 945.00 | Halstead program vocabulary | |
| PROGRAM_VOLUME | 0.00 | Halstead program volume | |
| RETURNS | 115.00 | Number of return points from functions | |
| SIZE | 84658.00 | Size of the file in bytes | |
| UNIQUE_OPERANDS | 881.00 | Number of unique operands | |
| UNIQUE_OPERATORS | 64.00 | Number of unique operators | |
| WHITESPACE | 104.00 | Number of whitespace lines | |