BTDownloaderImpl.java
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|---|---|---|
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com.limegroup.bittorrent |
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FrostWire |
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 | |
|---|---|---|
| JAVA0034 | JAVA0034 Missing braces in if statement |  |
| RETURNS | Number of return points from functions | |
| FUNCTIONS | Number of function declarations | |
| CYCLOMATIC | Cyclomatic complexity | |
| EXITS | Procedure exits | |
| INTERFACE_COMPLEXITY | Interface complexity | |
| JAVA0032 | JAVA0032 Switch statement missing default | |
| JAVA0133 | JAVA0133 Non-synchronized method overrides synchronized method | |
| PROGRAM_VOCAB | Halstead program vocabulary | |
| UNIQUE_OPERANDS | Number of unique operands | |
| JAVA0143 | JAVA0143 Synchronized method | |
| ELOC | Effective lines of code | |
| LOC | Lines of code | |
| BLOCKS | Number of blocks | |
| OPERATORS | Number of operators | |
| LOGICAL_LINES | Number of statements | |
| JAVA0040 | JAVA0040 Switch statement contains N cases (maximum: M) | |
| JAVA0031 | JAVA0031 Case statement not properly closed | |
| UNIQUE_OPERATORS | Number of unique operators | |
| PROGRAM_LENGTH | Halstead program length | |
| JAVA0075 | JAVA0075 Method parameter hides field | |
| JAVA0117 | JAVA0117 Missing javadoc: method 'method' | |
| PROGRAM_VOLUME | Halstead program volume | |
| LINES | Number of lines in the source file | |
| JAVA0136 | JAVA0136 N methods defined in class (maximum: M) | |
| JAVA0126 | JAVA0126 Method declares unchecked exception in throws | |
| SIZE | Size of the file in bytes | |
| OPERANDS | Number of operands | |
| LOOPS | Number of loops | |
| JAVA0108 | JAVA0108 Incorrect javadoc: no @param tag for 'parameter' | |
| DOC_COMMENT | Number of javadoc comment lines | |
| COMMENTS | Comment lines | |
package com.limegroup.bittorrent;
import java.io.File;
import org.limewire.collection.NumericBuffer;
import org.limewire.io.InvalidDataException;
import org.limewire.util.FileUtils;
import com.google.inject.Inject;
import com.google.inject.Provider;
import com.limegroup.bittorrent.Torrent.TorrentState;
import com.limegroup.gnutella.DownloadManager;
import com.limegroup.gnutella.Downloader;
import com.limegroup.gnutella.Endpoint;
import com.limegroup.gnutella.GUID;
import com.limegroup.gnutella.InsufficientDataException;
import com.limegroup.gnutella.RemoteFileDesc;
import com.limegroup.gnutella.SaveLocationException;
import com.limegroup.gnutella.SaveLocationManager;
import com.limegroup.gnutella.URN;
import com.limegroup.gnutella.downloader.AbstractCoreDownloader;
import com.limegroup.gnutella.downloader.DownloaderType;
import com.limegroup.gnutella.downloader.IncompleteFileManager;
import com.limegroup.gnutella.downloader.serial.BTDownloadMemento;
import com.limegroup.gnutella.downloader.serial.BTDownloadMementoImpl;
import com.limegroup.gnutella.downloader.serial.DownloadMemento;
/**
* This class enables the rest of LW to treat this as a regular download.
*/
public class BTDownloaderImpl extends AbstractCoreDownloader
implements TorrentEventListener, BTDownloader {
private volatile long startTime, stopTime;
private final NumericBuffer<Float> averagedBandwidth = new NumericBuffer<Float>(10);
/** Whether finish() has been invoked on this */
private volatile boolean finished;
/**
* The torrent this is downloading.
* Non-final because it changes to a FinishedTorrentDownload when done.
*/
private volatile Torrent torrent;
/**
* The <tt>BTMetaInfo</tt> for this torrent.
* Non-final because it's nulled when the torrent is done.
*/
private volatile BTMetaInfo btMetaInfo;
private volatile TorrentContext torrentContext;
private volatile TorrentFileSystem torrentFileSystem;
private volatile URN urn;
private final DownloadManager downloadManager;
private final IncompleteFileManager incompleteFileManager;
private final Provider<TorrentManager> torrentManager;
private final BTUploaderFactory btUploaderFactory;
private final ManagedTorrentFactory managedTorrentFactory;
private final BTContextFactory btContextFactory;
@Inject
BTDownloaderImpl(BTContextFactory btContextFactory,
SaveLocationManager saveLocationManager, Provider<TorrentManager> torrentManager,
BTUploaderFactory btUploaderFactory, DownloadManager downloadManager,
ManagedTorrentFactory managedTorrentFactory) {
super(saveLocationManager);
this.downloadManager = downloadManager;
this.torrentManager = torrentManager;
this.btUploaderFactory = btUploaderFactory;
this.incompleteFileManager = downloadManager.getIncompleteFileManager();
this.managedTorrentFactory = managedTorrentFactory;
this.btContextFactory = btContextFactory;
}
/* (non-Javadoc)
* @see com.limegroup.bittorrent.BTDownloader#initBtMetaInfo(com.limegroup.bittorrent.BTMetaInfo)
*/
public void initBtMetaInfo(BTMetaInfo btMetaInfo) {
this.btMetaInfo = btMetaInfo;
this.torrentFileSystem = btMetaInfo.getFileSystem();
this.urn = btMetaInfo.getURN();
synchronized(this) {
setDefaultFileName(btMetaInfo.getName());
}
this.torrentContext = btContextFactory.createBTContext(btMetaInfo);
this.torrent = managedTorrentFactory.create(torrentContext);
}
/**
* Stops a torrent download. If the torrent is in
* seeding state, it does nothing.
* (To stop a seeding torrent it must be stopped from the
* uploads pane)
*/
public void stop() {
if (torrent.isActive() &&
torrent.getState() != TorrentState.SEEDING) {
torrent.stop();
} else if (isInactive())
downloadManager.remove(this, true);
}
public void pause() {
torrent.pause();
}
public boolean isPaused() {
return torrent.isPaused();
}
public boolean isPausable() {
return torrent.isPausable();
}
public boolean isInactive() {
return isResumable() || torrent.getState() == TorrentState.QUEUED;
}
public boolean isLaunchable() {
return torrentFileSystem.getFiles().size() == 1 &&
torrentContext.getDiskManager().getLastVerifiedOffset() > 0;
}
public boolean isResumable() {
switch(torrent.getState()) {
case PAUSED:
case TRACKER_FAILURE:
return true;
}
return false;
}
public boolean resume() {
return torrent.resume();
}
public File getFile() {
if (torrent.isComplete())
return torrentFileSystem.getCompleteFile();
return torrentFileSystem.getBaseFile();
}
public File getDownloadFragment() {
if (!isLaunchable())
return null;
if (torrent.isComplete())
return getFile();
long size = torrentContext.getDiskManager().getLastVerifiedOffset();
if (size <= 0)
return null;
File file=new File(torrentFileSystem.getBaseFile().getParent(),
IncompleteFileManager.PREVIEW_PREFIX
+torrentFileSystem.getBaseFile().getName());
// Copy first block, returning if nothing was copied.
if (FileUtils.copy(torrentFileSystem.getBaseFile(), size, file) <=0 )
return null;
return file;
}
/*
* (non-Javadoc)
* @see com.limegroup.gnutella.Downloader#getState()
*
* Specifically, this maps the states of a torrent
* download to the states of a regular download.
*/
public DownloadStatus getState() {
// aborted seeding torrents are shown as complete in the
// downloads pane.
if (torrent.isComplete())
return DownloadStatus.COMPLETE;
switch(torrent.getState()) {
case WAITING_FOR_TRACKER :
return DownloadStatus.WAITING_FOR_GNET_RESULTS;
case VERIFYING:
return DownloadStatus.RESUMING;
case CONNECTING:
return DownloadStatus.CONNECTING;
case DOWNLOADING:
return DownloadStatus.DOWNLOADING;
case SAVING:
return DownloadStatus.SAVING;
case SEEDING:
return DownloadStatus.COMPLETE;
case QUEUED:
return DownloadStatus.QUEUED;
case PAUSED:
return DownloadStatus.PAUSED;
case STOPPED:
return DownloadStatus.ABORTED;
case DISK_PROBLEM:
return DownloadStatus.DISK_PROBLEM;
case TRACKER_FAILURE:
return DownloadStatus.WAITING_FOR_USER; // let the user trigger a scrape
case SCRAPING:
return DownloadStatus.ITERATIVE_GUESSING; // bad name but practically the same
case INVALID:
return DownloadStatus.INVALID;
}
throw new IllegalStateException("unknown torrent state");
}
private long getTotalAmountDownloaded() {
return torrent.getTotalDownloaded();
}
/**
* We only know how much time we'll be in the state between
* tracker requests.
*/
public int getRemainingStateTime() {
if (getState() != DownloadStatus.WAITING_FOR_GNET_RESULTS)
return 0;
return Math.max(0,(int)(torrent.getNextTrackerRequestTime() -
System.currentTimeMillis()) / 1000);
}
public long getContentLength() {
return torrentFileSystem.getTotalSize();
}
public long getAmountRead() {
// if the download is complete, just return the length
if (btMetaInfo == null )
return getContentLength();
// return the number of verified bytes
long ret = torrentContext.getDiskManager().getBlockSize();
// if this is initial checking, add the number of processed bytes
// too.
if (torrent.getState() == TorrentState.VERIFYING)
ret += torrentContext.getDiskManager().getNumCorruptedBytes();
return ret;
}
public String getVendor() {
return BITTORRENT_DOWNLOAD;
}
public Endpoint getChatEnabledHost() {
return null;
}
public boolean hasChatEnabledHost() {
return false;
}
public void discardCorruptDownload(boolean delete) {
// we never give up because of corruption
}
public RemoteFileDesc getBrowseEnabledHost() {
return null;
}
public boolean hasBrowseEnabledHost() {
return false;
}
public int getQueuePosition() {
return 1;
}
public int getNumberOfAlternateLocations() {
return getPossibleHostCount();
}
public int getNumberOfInvalidAlternateLocations() {
return 0; // not applicable to torrents
}
public int getPossibleHostCount() {
return torrent.getNumPeers();
}
public int getBusyHostCount() {
return torrent.getNumNonInterestingPeers();
}
public int getQueuedHostCount() {
return torrent.getNumChockingPeers();
}
public GUID getQueryGUID() {
return null;
}
public boolean isCompleted() {
switch(torrent.getState()) {
case SEEDING:
case STOPPED:
case DISK_PROBLEM:
case TRACKER_FAILURE:
return true;
}
return false;
}
public boolean shouldBeRemoved() {
switch(torrent.getState()) {
case DISK_PROBLEM:
case SEEDING:
return true;
}
return false;
}
public long getAmountVerified() {
return torrentContext.getDiskManager().getVerifiedBlockSize();
}
public int getChunkSize() {
return btMetaInfo.getPieceLength();
}
public long getAmountLost() {
return torrent.getAmountLost();
}
public void measureBandwidth() {
torrent.measureBandwidth();
averagedBandwidth.add(torrent.getMeasuredBandwidth(true));
}
public float getMeasuredBandwidth() throws InsufficientDataException {
if (averagedBandwidth.size() < 3)
throw new InsufficientDataException();
return averagedBandwidth.average().floatValue();
}
public float getAverageBandwidth() {
long now = stopTime > 0 ? stopTime : System.currentTimeMillis();
long runTime = now - startTime ;
return runTime > 0 ? getTotalAmountDownloaded() / runTime : 0;
}
public boolean isRelocatable() {
return !isCompleted();
}
@Override
public void setSaveFile(File saveDirectory, String fileName,
boolean overwrite) throws SaveLocationException {
super.setSaveFile(saveDirectory, fileName, overwrite);
// if this didn't throw target is ok.
torrentFileSystem.setCompleteFile(new File(saveDirectory, fileName));
}
@Override
public File getSaveFile() {
return torrentFileSystem.getCompleteFile();
}
@Override
protected File getDefaultSaveFile() {
return null;
}
public URN getSha1Urn() {
return urn;
}
public int getAmountPending() {
return torrentContext.getDiskManager().getAmountPending();
}
public int getNumHosts() {
return torrent.getNumConnections();
}
public void handleTorrentEvent(TorrentEvent evt) {
if (evt.getTorrent() != torrent)
return;
switch(evt.getType()) {
case STARTED : torrentStarted(); break;
case COMPLETE : torrentComplete(); break;
case STOPPED : torrentStopped(evt.getDescription()); break;
// the below aren't handled...
case STARTING:
case STOP_APPROVED:
case STOP_REQUESTED:
}
}
private void torrentComplete() {
// the download stops now. even though the torrent goes on
stopTime = System.currentTimeMillis();
incompleteFileManager.removeTorrentEntry(urn);
downloadManager.remove(this, true);
}
private void torrentStarted() {
startTime = System.currentTimeMillis();
stopTime = 0;
}
private void torrentStopped(String description) {
if (stopTime == 0) {
if (description != null)
setAttribute(CUSTOM_INACTIVITY_KEY, description, false);
averagedBandwidth.clear();
boolean resumable = isResumable();
stopTime = System.currentTimeMillis();
downloadManager.remove(this, !resumable);
} else { // otherwise torrent was already completed.
assert(torrent instanceof FinishedTorrentDownload);
}
}
public void initialize() {
torrentManager.get().addEventListener(this);
incompleteFileManager.addTorrentEntry(urn);
}
public void startDownload() {
btUploaderFactory.createBTUploader((ManagedTorrent)torrent, btMetaInfo);
torrent.start();
}
public void handleInactivity() {
// nothing happens when we're inactive
}
public boolean shouldBeRestarted() {
return getState() == DownloadStatus.QUEUED && torrentManager.get().allowNewTorrent();
}
public boolean isAlive() {
return false; // doesn't apply to torrents
}
public boolean isQueuable() {
return !isResumable();
}
public boolean conflicts(URN urn, long fileSize, File... file) {
if (this.urn.equals(urn))
return true;
for (File f : file) {
if (conflictsSaveFile(f))
return true;
}
return false;
}
@Override
public boolean conflictsSaveFile(File candidate) {
return torrentFileSystem.conflicts(candidate);
}
public boolean conflictsWithIncompleteFile(File incomplete) {
return torrentFileSystem.conflictsIncomplete(incomplete);
}
public synchronized void finish() {
finished = true;
torrentManager.get().removeEventListener(this);
torrent = new FinishedTorrentDownload(torrent);
btMetaInfo = null;
}
@Override
public String toString() {
return "downloader facade for "+torrentFileSystem.getCompleteFile().getName();
}
public boolean equals(Object o) {
if (! (o instanceof Downloader))
return false;
Downloader other = (Downloader)o;
return getSha1Urn().equals(other.getSha1Urn());
}
public int getTriedHostCount() {
return torrent.getTriedHostCount();
}
public String getCustomIconDescriptor() {
if (torrentFileSystem.getFiles().size() == 1)
return null;
return BITTORRENT_DOWNLOAD;
}
public DownloaderType getDownloadType() {
return DownloaderType.BTDOWNLOADER;
}
protected DownloadMemento createMemento() {
if(finished)
throw new IllegalStateException("creating memento for finished torrent!");
return new BTDownloadMementoImpl();
}
@Override
protected void fillInMemento(DownloadMemento memento) {
super.fillInMemento(memento);
BTDownloadMemento bmem = (BTDownloadMemento)memento;
bmem.setBtMetaInfoMemento(btMetaInfo.toMemento());
}
@Override
public synchronized void initFromMemento(DownloadMemento memento) throws InvalidDataException {
super.initFromMemento(memento);
BTDownloadMemento bmem = (BTDownloadMemento)memento;
initBtMetaInfo(new BTMetaInfo(bmem.getBtMetaInfoMemento()));
}
}
The table below shows all metrics for BTDownloaderImpl.java.
| Metric | Value | Description | |
|---|---|---|---|
| BLOCKS | 72.00 | Number of blocks | |
| BLOCK_COMMENT | 10.00 | Number of block comment lines | |
| COMMENTS | 44.00 | Comment lines | |
| COMMENT_DENSITY | 0.14 | Comment density | |
| COMPARISONS | 33.00 | Number of comparison operators | |
| CYCLOMATIC | 120.00 | Cyclomatic complexity | |
| DECL_COMMENTS | 8.00 | Comments in declarations | |
| DOC_COMMENT | 22.00 | Number of javadoc comment lines | |
| ELOC | 311.00 | Effective lines of code | |
| EXEC_COMMENTS | 10.00 | Comments in executable code | |
| EXITS | 83.00 | Procedure exits | |
| FUNCTIONS | 67.00 | Number of function declarations | |
| HALSTEAD_DIFFICULTY | 64.89 | Halstead difficulty | |
| HALSTEAD_EFFORT | 0.00 | Halstead effort | |
| INTERFACE_COMPLEXITY | 119.00 | Interface complexity | |
| JAVA0001 | 0.00 | JAVA0001 Package name does not contain only lower case letters | |
| JAVA0002 | 0.00 | JAVA0002 Package name does not begin with a top level domain name or country code | |
| JAVA0003 | 0.00 | JAVA0003 Minimize use of on-demand (.*) imports | |
| JAVA0004 | 0.00 | JAVA0004 Unnecessary import from java.lang | |
| JAVA0005 | 0.00 | JAVA0005 Imports not in specified order | |
| JAVA0006 | 0.00 | JAVA0006 Empty finally block | |
| JAVA0007 | 0.00 | JAVA0007 Should not declare public field | |
| JAVA0008 | 0.00 | 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 | 0.00 | JAVA0029 Private method not used | |
| JAVA0030 | 0.00 | JAVA0030 Private field not used | |
| JAVA0031 | 1.00 | JAVA0031 Case statement not properly closed | |
| JAVA0032 | 5.00 | JAVA0032 Switch statement missing default | |
| JAVA0033 | 0.00 | JAVA0033 default: not last case in switch statement | |
| JAVA0034 | 18.00 | JAVA0034 Missing braces in if statement | |
| JAVA0035 | 0.00 | 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 | 0.00 | 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 | 0.00 | 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 | 0.00 | JAVA0067 Array descriptor on identifier name | |
| JAVA0068 | 0.00 | JAVA0068 Modifiers not declared in recommended order | |
| JAVA0071 | 0.00 | JAVA0071 Strings compared with == | |
| JAVA0073 | 1.00 | JAVA0073 Integer division in floating-point context | |
| JAVA0074 | 0.00 | JAVA0074 Use of Object.notify() | |
| JAVA0075 | 2.00 | JAVA0075 Method parameter hides field | |
| JAVA0076 | 0.00 | 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 | 0.00 | JAVA0079 Use of instance to reference static member | |
| JAVA0080 | 0.00 | JAVA0080 Import declaration not used | |
| JAVA0081 | 0.00 | JAVA0081 Boolean literal in comparison | |
| JAVA0082 | 0.00 | JAVA0082 Unnecessary widening cast | |
| JAVA0083 | 0.00 | JAVA0083 Unnecessary instanceof test | |
| JAVA0084 | 0.00 | JAVA0084 Should use compound assignment operator | |
| JAVA0085 | 0.00 | JAVA0085 Use of sun.* class | |
| JAVA0087 | 0.00 | 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 | 0.00 | 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 | 1.00 | 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 | 1.00 | JAVA0113 Incorrect javadoc: no @author tag | |
| JAVA0114 | 1.00 | JAVA0114 Incorrect javadoc: no @version tag | |
| JAVA0115 | 0.00 | JAVA0115 Incorrect javadoc: no @throws or @exception tag for 'exception' | |
| JAVA0116 | 0.00 | JAVA0116 Missing javadoc: field 'field' | |
| JAVA0117 | 0.00 | JAVA0117 Missing javadoc: method 'method' | |
| JAVA0118 | 0.00 | 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 | 0.00 | 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 | 1.00 | 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 | 1.00 | 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 | 2.00 | JAVA0143 Synchronized method | |
| JAVA0144 | 0.00 | JAVA0144 Line exceeds maximum M characters | |
| JAVA0145 | 555.00 | 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 | 0.00 | 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 | 0.00 | 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 | 0.00 | 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 | 0.00 | 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 | 4.00 | 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 | 0.00 | 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 | 0.00 | 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 | 0.00 | 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 | 0.00 | JAVA0272 Thread.run() called | |
| JAVA0273 | 0.00 | 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 | 0.00 | JAVA0283 Control variable not updated in loop body | |
| JAVA0284 | 0.00 | JAVA0284 Explicit garbage collection | |
| JAVA0285 | 0.00 | JAVA0285 Dereference of potentially null variable | |
| JAVA0286 | 0.00 | JAVA0286 Dereference of null variable | |
| JAVA0287 | 0.00 | JAVA0287 Unnecessary null check | |
| JAVA0288 | 0.00 | JAVA0288 Inconsistent null check | |
| LINES | 514.00 | Number of lines in the source file | |
| LINE_COMMENT | 12.00 | Number of line comments | |
| LOC | 387.00 | Lines of code | |
| LOGICAL_LINES | 176.00 | Number of statements | |
| LOOPS | 0.00 | Number of loops | |
| NEST_DEPTH | 2.00 | Maximum nesting depth | |
| OPERANDS | 658.00 | Number of operands | |
| OPERATORS | 1532.00 | Number of operators | |
| PARAMS | 21.00 | Number of formal parameter declarations | |
| PROGRAM_LENGTH | 2190.00 | Halstead program length | |
| PROGRAM_VOCAB | 346.00 | Halstead program vocabulary | |
| PROGRAM_VOLUME | 0.00 | Halstead program volume | |
| RETURNS | 98.00 | Number of return points from functions | |
| SIZE | 14272.00 | Size of the file in bytes | |
| UNIQUE_OPERANDS | 289.00 | Number of unique operands | |
| UNIQUE_OPERATORS | 57.00 | Number of unique operators | |
| WHITESPACE | 83.00 | Number of whitespace lines | |