JGraphGXLCodec.java
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|---|---|---|
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org.jgraph.plugins.codecs |
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JGraph |
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 | |
|---|---|---|
| EXEC_COMMENTS | Comments in executable code |  |
| LINE_COMMENT | Number of line comments | |
| JAVA0049 | JAVA0049 Nested block at depth N (maximum: M) | |
| COMPARISONS | Number of comparison operators | |
| SIZE | Size of the file in bytes | |
| EXITS | Procedure exits | |
| JAVA0034 | JAVA0034 Missing braces in if statement | |
| OPERANDS | Number of operands | |
| UNIQUE_OPERANDS | Number of unique operands | |
| PROGRAM_LENGTH | Halstead program length | |
| OPERATORS | Number of operators | |
| PROGRAM_VOCAB | Halstead program vocabulary | |
| COMMENTS | Comment lines | |
| PARAMS | Number of formal parameter declarations | |
| JAVA0166 | JAVA0166 Generic exception caught | |
| CYCLOMATIC | Cyclomatic complexity | |
| DECL_COMMENTS | Comments in declarations | |
| DOC_COMMENT | Number of javadoc comment lines | |
| LOOPS | Number of loops | |
| ELOC | Effective lines of code | |
| LINES | Number of lines in the source file | |
| BLOCKS | Number of blocks | |
| INTERFACE_COMPLEXITY | Interface complexity | |
| LOGICAL_LINES | Number of statements | |
| JAVA0242 | JAVA0242 Transient field in non-Serializable class | |
| LOC | Lines of code | |
| JAVA0270 | JAVA0270 Use Java 5.0 enhanced for loop construct to iterate over all elements in an array | |
| RETURNS | Number of return points from functions | |
| JAVA0081 | JAVA0081 Boolean literal in comparison | |
| JAVA0108 | JAVA0108 Incorrect javadoc: no @param tag for 'parameter' | |
| JAVA0035 | JAVA0035 Missing braces in for statement | |
| JAVA0008 | JAVA0008 Empty catch block | |
| NEST_DEPTH | Maximum nesting depth | |
| FUNCTIONS | Number of function declarations | |
| PROGRAM_VOLUME | Halstead program volume | |
| JAVA0136 | JAVA0136 N methods defined in class (maximum: M) | |
| JAVA0126 | JAVA0126 Method declares unchecked exception in throws | |
| JAVA0265 | JAVA0265 Use of Throwable.printStackTrace() | |
| JAVA0117 | JAVA0117 Missing javadoc: method 'method' | |
| UNIQUE_OPERATORS | Number of unique operators | |
| JAVA0067 | JAVA0067 Array descriptor on identifier name | |
| JAVA0254 | JAVA0254 Use enhanced for loop construct instead of Iterator | |
| JAVA0110 | JAVA0110 Incorrect javadoc: no @return tag | |
| JAVA0145 | JAVA0145 Tab character used in source file | |
/*
* @(#)JGraphGXLCodec.java 1.0 12-MAY-2004
*
* Copyright (c) 2001-2004, Gaudenz Alder, Paul Raingeard de la BlÔøΩtiÔøΩre
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* - Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* - Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* - Neither the name of JGraph nor the names of its contributors may be used
* to endorse or promote products derived from this software without specific
* prior written permission.
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
package org.jgraph.plugins.codecs;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.Point;
import java.awt.Rectangle;
import java.awt.geom.Rectangle2D;
import java.beans.BeanInfo;
import java.beans.Introspector;
import java.beans.PropertyDescriptor;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.ArrayList;
import java.util.Hashtable;
import java.util.Iterator;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import org.jgraph.JGraph;
import org.jgraph.graph.ConnectionSet;
import org.jgraph.graph.DefaultEdge;
import org.jgraph.graph.DefaultGraphCell;
import org.jgraph.graph.DefaultPort;
import org.jgraph.graph.GraphCell;
import org.jgraph.graph.GraphConstants;
import org.jgraph.graph.GraphModel;
import org.jgraph.pad.jgraphpad.util.JGraphUtilities;
import org.w3c.dom.DOMException;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.xml.sax.EntityResolver;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
/**
* @author Gaudenz Alder
*
* TODO To change the template for this generated type comment go to
* Window - Preferences - Java - Code Generation - Code and Comments
*/
public class JGraphGXLCodec {
static transient Hashtable encodeHash;
static transient Hashtable decodeHash;
/**
* Property for XML parse.
* True : the parse wil validate the XML withing the DTD.
* False : It only will be done if it is available.
*/
private static boolean validateDTD = false;
/**
* Retrieves the encoding Hashtable with the node's Id.
*
* It may be usefull to sirialize the values of the nodes.
* @return Hastable with elements : ((key : node), (value : GXL id)).
*/
public static Hashtable getLastEncodingHashtable() {
return encodeHash;
}
/**
* Retrieves the decoding Hashtable with the node's Id.
*
* It may be usefull to sirialize the values of the nodes.
* @return Hastable with elements : ((key : node), (value : GXL id)).
*/
public static Hashtable getLastDecodingHashtable() {
return decodeHash;
}
/**
* Create a GXL-representation for all the cells.
*
* @param graph JGraph to encode.
* @return Encoded string.
*/
public static String encode(JGraph graph) {
Object[] cells = graph.getDescendants(graph.getRoots());
return encode(graph, cells);
}
/**
* Create a GXL-representation for the specified cells.
*
* @param graph JGraph to encode.
* @param cells Selected cells to be encoded.
* @return Encoded string.
*/
public static String encode(JGraph graph, Object[] cells) {
int counter = 0;
encodeHash = new Hashtable();
String gxl = "<?xml version=\"1.0\"?>\n" +
"<!DOCTYPE gxl SYSTEM \"http://www.gupro.de/GXL/gxl-1.1.dtd\">\n" +
"<gxl xmlns:xlink=\"http://www.w3.org/1999/xlink\">\n" +
"<graph id=\"jGraph\">\n";
// Create external keys for nodes
for (int i = 0; i < cells.length; i++)
if (JGraphUtilities.isVertex(graph, cells[i])) {
encodeHash.put(cells[i], "node" + counter);
counter++;
}
// Convert Nodes
Iterator it = encodeHash.keySet().iterator();
while (it.hasNext()) {
Object node = it.next();
gxl += encodeVertex(graph, (String)encodeHash.get(node), node);
}
// Convert Edges
int edges = 0;
for (int i = 0; i < cells.length; i++)
if (graph.getModel().isEdge(cells[i]))
gxl += encodeEdge(graph, new Integer(edges++), cells[i]);
// Close main tags
gxl += "\n</graph>\n</gxl>";
return gxl;
}
/**
* Create a string with tabs.
*
* @param level Tab level.
* @return Tab string.
*/
private static String createTab(int level){
String tab = "";
for (int i=0; i<level; i++){
tab += "\t";
}
return tab;
}
/**
* Basic value encoding.
*
* @param type GXL Type of the value (int, bool, ...)
* @param value Value to be encoded.
* @param level Tab level.
* @return Encoded string.
*/
protected static String encodeValue(String type, String value, int level){
return createTab(level) + "<" + type + ">" + value + "</" + type + ">\n";
}
/**
* Basic boolean encoding.
*
* @param value Value to be encoded.
* @param level Tab level.
* @return Encoded string.
*/
private static String encodeValue(boolean value, int level){
return createTab(level) + "<bool>" + value + "</bool>\n";
}
/**
* Basic integer encoding.
*
* @param value Value to be encoded.
* @param level Tab level.
* @return Encoded string.
*/
protected static String encodeValue(int value, int level){
return createTab(level) + "<int>" + value + "</int>\n";
}
/**
* Basic String encoding.
*
* @param value Value to be encoded.
* @param level Tab level.
* @return Encoded string.
*/
protected static String encodeValue(String value, int level){
return createTab(level) + "<string>" + value + "</string>\n";
}
/**
* Attribute encoding.
*
* @param values Values of the attribute.
* @param attributeName name of the attribute.
* @param level Tab level.
* @return Encoded string.
*/
protected static String encodeAttribute(String values, String attributeName, int level){
String tab = createTab(level);
return tab + "<attr name=\"" + attributeName + "\">\n" + values + tab + "</attr>\n";
}
/**
* String encoding.
*
* @param value Value of the attribute.
* @param attributeName name of the attribute.
* @param level Tab level.
* @return Encoded string.
*/
protected static String encodeString(String value, String attributeName, int level){
if (value != null){
return encodeAttribute(encodeValue(value,level+1), attributeName, level);
}
return "";
}
/**
* Integer encoding.
*
* @param value Value of the attribute.
* @param attributeName name of the attribute.
* @param level Tab level.
* @return Encoded string.
*/
protected static String encodeInteger(int value, String attributeName, int level){
return encodeAttribute(encodeValue(value,level+1), attributeName, level);
}
/**
* Boolean encoding.
*
* @param value Value of the attribute.
* @param attributeName name of the attribute.
* @param level Tab level.
* @return Encoded string.
*/
protected static String encodeBoolean(boolean value, String attributeName, int level){
return encodeAttribute(encodeValue(value,level+1), attributeName, level);
}
/**
* Color encoding.
*
* @param color Color of the attribute.
* @param attributeName name of the attribute.
* @param level Tab level.
* @return Encoded string.
*/
protected static String encodeColor(Color color, String attributeName, int level){
if (color != null) {
String tab1 = createTab(level+1);
int level2 = level+2;
String values = tab1 + "<tup>\n" +
encodeValue(color.getRed(), level2) +
encodeValue(color.getGreen(), level2) +
encodeValue(color.getBlue(), level2) +
tab1 + "</tup>\n";
return encodeAttribute(values, attributeName, level);
}
return "";
}
/**
* Font encoding.
*
* @param font Font of the attribute.
* @param attributeName name of the attribute.
* @param level Tab level.
* @return Encoded string.
*/
protected static String encodeFont(Font font, String attributeName, int level){
if (font != null) {
String tab1 = createTab(level+1);
int level2 = level+2;
String values = tab1 + "<tup>\n" +
encodeValue(font.getFontName(), level2) +
encodeValue(font.getStyle(), level2) +
encodeValue(font.getSize(), level2) +
tab1 + "</tup>\n";
return encodeAttribute(values, attributeName, level);
}
return "";
}
/**
* Rectangle encoding.
*
* @param rec Rectangle to be encoded.
* @param attributeName name of the attribute.
* @param level Tab level.
* @return Encoded string.
*/
protected static String encodeRectangle(Rectangle2D rec, String attributeName, int level){
if (rec != null) {
String tab1 = createTab(level+1);
int level2 = level+2;
String values = tab1 + "<tup>\n" +
encodeValue((int)rec.getCenterX(), level2) +
encodeValue((int)rec.getCenterY(), level2) +
encodeValue((int)rec.getWidth(), level2) +
encodeValue((int)rec.getHeight(), level2) +
tab1 + "</tup>\n";
return encodeAttribute(values, attributeName, level);
}
return "";
}
/**
* Bean encoding.
* This is usefull to encode the userObject in the Vertex.
* It must be a bean with a beanInfo class in order to inspect it.
*
* @param bean Bean to be encoded.
* @param attributeName name of the attribute.
* @param level Tab level.
* @return Encoded string.
*/
protected static String encodeBean(Object bean, String attributeName, int level){
String encoded = "";
if (bean != null) {
try {
int level1 = level+1;
BeanInfo bi = null;
PropertyDescriptor tmpProperties[] = null;
PropertyDescriptor prop = null;
bi = Introspector.getBeanInfo(bean.getClass());
tmpProperties = bi.getPropertyDescriptors();
encoded += encodeString(bean.getClass().getName(), "ClassName", level1);
for (int i=0; i<tmpProperties.length; i++) {
prop = tmpProperties[i];
encoded += encodeString(prop.getReadMethod().invoke(bean,null).toString(), prop.getDisplayName(), level1);
}
encoded = encodeAttribute(encoded, attributeName, level);
} catch (Exception e){
e.printStackTrace();
}
}
return encoded;
}
/**
* Encode a Vertex of a graph
*
* @param graph Graph containing the vertex.
* @param id Id of the vertex.
* @param vertex Vertex to be encoded.
* @return Encoded string.
*/
protected static String encodeVertex(JGraph graph, String id, Object vertex) {
int level = 2;
String label = graph.convertValueToString(vertex);
Map attributes = ((GraphCell)vertex).getAttributes();
String encoded = "\n\t<node id=\"" + id + "\">\n"
+ encodeString(label, "Label", level)
+ encodeRectangle(GraphConstants.getBounds(attributes), "Bounds", level)
+ encodeColor(GraphConstants.getBorderColor(attributes), "BorderColor", level)
+ encodeColor(GraphConstants.getForeground(attributes), "BorderColor", level)
+ encodeColor(GraphConstants.getBackground(attributes), "BorderColor", level)
+ encodeFont(GraphConstants.getFont(attributes), "Font", level)
+ encodeColor(GraphConstants.getLineColor(attributes), "BorderColor", level)
//+ encodeBoolean(GraphConstants.getOpaque(attributes), "Opaque", level)
//+ encodeBean(GraphConstants.getValue(attributes), "Value", level)
+ "\t</node>";
return encoded;
}
/**
* Encode a Edge of a graph
*
* @param graph Graph containing the edge.
* @param id Id of the vertex.
* @return Encoded string.
*/
protected static String encodeEdge(JGraph graph, Object id, Object edge) {
GraphModel model = graph.getModel();
String from = "";
if (model.getSource(edge) != null) {
Object source = encodeHash.get(model.getParent(model.getSource(edge)));
if (source != null)
from = source.toString();
}
String to = "";
if (model.getTarget(edge) != null) {
Object target = encodeHash.get(model.getParent(model.getTarget(edge)));
if (target != null)
to = target.toString();
}
if (from != null && to != null) {
int level = 2;
Map attributes = ((GraphCell)edge).getAttributes();
String label = graph.convertValueToString(edge);
return "\n\t<edge id=\"edge"
+ id.toString()
+ "\""
+ " from=\""
+ from
+ "\""
+ " to=\""
+ to
+ "\">\n"
+ encodeString(label, "Label", 2)
+ encodeInteger(GraphConstants.getLineEnd(attributes), "LineEnd", level)
+ encodeColor(GraphConstants.getForeground(attributes), "Foreground", level)
+ encodeFont(GraphConstants.getFont(attributes), "Font", level)
+ encodeInteger(GraphConstants.getLineStyle(attributes), "LineStyle", level)
+ encodeColor(GraphConstants.getLineColor(attributes), "LineColor", level)
+ "\n\t</edge>";
}
return "";
}
/**
* Extracts visual properties of the node from the child 'view' element
* Currently recognized properties:
* - Bounds
* - color
* - background-color
* - autosize
* - Font
* - Line-End, Line-size, Line-color
*/
protected static void decodeCell(Node gnode, Map gnode_attrs) {
NodeList gnode_children = gnode.getChildNodes();
for (int gnode_child_i = 0; gnode_child_i < gnode_children.getLength(); gnode_child_i++) {
Node gnode_child = gnode_children.item(gnode_child_i);
if (gnode_child.getNodeName().equals("attr")) {
String name = ((Element)gnode_child).getAttribute("name");
LinkedList values = new LinkedList();
// Retreaving all the values in the node
readGXLAttributeValues(gnode_child, values);
if ((name != null) && (values.size()>0)) {
if (name.equals("Bounds")) {
if (values.size() == 4){
Point p = new Point(Integer.parseInt((String)values.get(0)),
Integer.parseInt((String)values.get(1)));
Dimension d = new Dimension(Integer.parseInt((String)values.get(2)),
Integer.parseInt((String)values.get(3)));
Rectangle2D bounds = new Rectangle(p, d);
GraphConstants.setBounds(gnode_attrs, bounds);
}
} else if (name.equals("Font")) {
if (values.size() == 3){
Font font = new Font((String)values.get(0),
Integer.parseInt((String)values.get(1)),
Integer.parseInt((String)values.get(2)));
GraphConstants.setFont(gnode_attrs, font);
}
} else if (name.equals("Foreground")) {
try {
Color color = new Color(Integer.parseInt((String)values.get(0)),
Integer.parseInt((String)values.get(1)),
Integer.parseInt((String)values.get(2)));
GraphConstants.setForeground(gnode_attrs, color);
} catch (Exception nfe) {
}
} else if (name.equals("BorderColor")) {
try {
Color color = new Color(Integer.parseInt((String)values.get(0)),
Integer.parseInt((String)values.get(1)),
Integer.parseInt((String)values.get(2)));
GraphConstants.setBorderColor(gnode_attrs, color);
} catch (Exception nfe) {
}
} else if (name.equals("LineColor")) {
try {
Color color = new Color(Integer.parseInt((String)values.get(0)),
Integer.parseInt((String)values.get(1)),
Integer.parseInt((String)values.get(2)));
GraphConstants.setLineColor(gnode_attrs, color);
} catch (Exception nfe) {
}
} else if (name.equals("Background")) {
try {
Color color = new Color(Integer.parseInt((String)values.get(0)),
Integer.parseInt((String)values.get(1)),
Integer.parseInt((String)values.get(2)));
GraphConstants.setBackground(gnode_attrs, color);
} catch (Exception nfe) {
}
} else if (name.equals("LineColor")) {
try {
Color color = new Color(Integer.parseInt((String)values.get(0)),
Integer.parseInt((String)values.get(1)),
Integer.parseInt((String)values.get(2)));
GraphConstants.setLineColor(gnode_attrs, color);
} catch (Exception nfe) {
}
} else if (name.equals("LineEnd")) {
try {
GraphConstants.setLineEnd(gnode_attrs, Integer.parseInt((String)values.get(0)));
} catch (Exception e){}
} else if (name.equals("LineStyle")) {
try {
GraphConstants.setLineStyle(gnode_attrs, Integer.parseInt((String)values.get(0)));
} catch (Exception e){}
} else if (name.equals("AutoSize")) {
GraphConstants.setAutoSize(gnode_attrs, "true".equals(values.get(0)));
}
}
}
}
}
/**
* Reads the values of an GXL Attribute.
*
* @param enode Node to read.
* @param values List to populate : with 2 dimension String arrys.
* return[0] : type of value
* return[1] : value
*/
protected static void readGXLAttributeValues(Node enode, LinkedList values){
// read Child Elements
NodeList child_list = enode.getChildNodes();
for(int j=0; j<child_list.getLength(); j++){
Node currentNode = child_list.item(j);
String nodeName = currentNode.getNodeName();
if (nodeName.equals("tup") ||
nodeName.equals("set") ||
nodeName.equals("enum") ||
nodeName.equals("seq") ||
nodeName.equals("bag")) {
readGXLAttributeValues(currentNode, values);
} else if (nodeName.equals("int") ||
nodeName.equals("bool") ||
nodeName.equals("float") ||
nodeName.equals("string") ||
nodeName.equals("locator")) {
try {
Node firstChild = currentNode.getFirstChild();
// Check to see if first child exists. Null strings
// will just show no value
if (null == firstChild) {
if (nodeName.equals("string")) values.add(new String(""));
}
else {
values.add(currentNode.getFirstChild().getNodeValue());
}
} catch (DOMException e){}
}
}
}
/**
* Decodes a Edge.
*
* @param enode XML Node.
* @param enode_attrs Cell Attributes.
*/
protected static void decodeEdge(Node enode, Map enode_attrs) {
decodeCell(enode, enode_attrs);
}
/**
* Manage DTD offline.
*
* @param db XML document builder.
*/
private static void manageDTDLookup(DocumentBuilder db) {
// Error During DTD validation : can't find www.gupro.de
// Forget validation
db.setEntityResolver(new EntityResolver() {
public InputSource resolveEntity(java.lang.String publicId, java.lang.String systemId)
throws SAXException, java.io.IOException {
InputSource is = null;
try {
URL url = new URL(systemId);
HttpURLConnection con = (HttpURLConnection)url.openConnection();
con.connect();
int responseCode = con.getResponseCode();
con.disconnect();
if (responseCode != HttpURLConnection.HTTP_NOT_FOUND) {
is = new InputSource(systemId);
} else {
is = new InputSource(new ByteArrayInputStream("<?xml version='1.0' encoding='UTF-8'?>".getBytes()));
}
} catch (IOException e) {
is = new InputSource(new ByteArrayInputStream("<?xml version='1.0' encoding='UTF-8'?>".getBytes()));
}
return is;
}
});
}
/**
* Decodes a GXL File.
*
* @param inputStream Stream to be decoded.
* @param graph Graph where the decode file is inserted.
*/
public static void decode(InputStream inputStream,
JGraph graph) throws Exception {
GraphModel model = graph.getModel();
// Create a DocumentBuilderFactory
DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
// Create a DocumentBuilder
DocumentBuilder db = dbf.newDocumentBuilder();
// Manage the compliange with the DTD File.
if (validateDTD == false) {
manageDTDLookup(db);
}
// Parse the input file to get a Document object
Document doc = db.parse(inputStream);
// Get the first child (the graph-element)
// List for the new Cells
List newCells = new ArrayList();
// ConnectionSet for the Insert method
ConnectionSet cs = new ConnectionSet();
// Hashtable for the ID lookup (ID to Vertex)
decodeHash = new Hashtable();
// Hashtable for Attributes (Vertex to Map)
Hashtable attributes = new Hashtable();
Element gxl = doc.getDocumentElement(); // First gxl element
NodeList graph_list = gxl.getChildNodes();
if (graph_list.getLength() == 0) {
return;
}
for (int graph_index = 0; graph_index < graph_list.getLength(); graph_index++) {
Node graph_node = graph_list.item(graph_index);
if (graph_node.getNodeName().equals("graph")) {
Element graph_elem = (Element)graph_node;
NodeList list = graph_elem.getChildNodes();
boolean defaultDirected = "directed".equals(graph_elem.getAttribute("edgemode")) ||
"defaultdirected".equals(graph_elem.getAttribute("edgemode"));
// End of Opheamro
// Get Graph's Child Nodes (the cells)
// Loop Children
for (int i = 0; i < list.getLength(); i++) {
Node node = list.item(i);
// Fetch Label
String label = getLabel(node);
// If Valid Node
if (node.getAttributes() != null && node.getNodeName() != null) {
// Fetch Type
String type = node.getNodeName().toString().toLowerCase();
// Create Vertex
if (type.equals("node")) {
// Fetch ID Node
String id = null;
Node tmp = node.getAttributes().getNamedItem("id");
// Fetch ID Value
if (tmp != null)
id = tmp.getNodeValue();
// Need unique valid ID
if (id != null && !decodeHash.keySet().contains(id)) {
// Create Vertex with label
DefaultGraphCell vertex = new DefaultGraphCell(label);
// Add One Floating Port
vertex.add(new DefaultPort());
// Add ID, Vertex pair to Hashtable
decodeHash.put(id, vertex);
// Add Default Attributes
Map node_attrs = new Hashtable(); //createDefaultAttributes(new Hashtable());
decodeCell(node, node_attrs);
attributes.put(vertex, node_attrs);
// Add Vertex to new Cells
newCells.add(vertex);
}
// Create Edge
} else if (type.equals("edge")) {
Element edge_node = (Element)node;
// Fetch Source ID Node
Node tmp = node.getAttributes().getNamedItem("from");
// Fetch Source ID Value
String source = null;
if (tmp != null)
source = tmp.getNodeValue();
// Fetch Target ID Node
tmp = node.getAttributes().getNamedItem("to");
// Fetch Target ID Value
String target = null;
if (tmp != null)
target = tmp.getNodeValue();
// Create Edge with label
DefaultEdge edge = new DefaultEdge(label);
// Find Source Port
if (source != null) {
// Fetch Vertex for Source ID
DefaultGraphCell vertex =
(DefaultGraphCell) decodeHash.get(source);
if (vertex != null)
// Connect to Source Port
cs.connect(edge, vertex.getChildAt(0), true);
}
// Find Target Port
if (target != null) {
// Fetch Vertex for Target ID
DefaultGraphCell vertex =
(DefaultGraphCell) decodeHash.get(target);
if (vertex != null)
// Connect to Target Port
cs.connect(edge, vertex.getChildAt(0), false);
}
boolean edge_directed = ("true".equals(edge_node.getAttribute("isdirected")) || defaultDirected)
&& !("false".equals(edge_node.getAttribute("isdirected")));
Map map = new Hashtable();
if (edge_directed) {
GraphConstants.setLineEnd(map, GraphConstants.ARROW_CLASSIC);
GraphConstants.setEndFill(map, true);
}
decodeEdge(edge_node, map);
attributes.put(edge, map);
// Add Edge to new Cells
newCells.add(edge);
}
}
}
}
}
// Insert the cells (View stores attributes)
model.insert(newCells.toArray(), attributes, cs, null, null);
}
/**
* Returns an attributeMap for the specified position and color.
*/
protected static Map createDefaultAttributes(Map map) {
// Set a Black Line Border (the Border-Attribute must be Null!)
GraphConstants.setBorderColor(map, Color.black);
// Return the Map
return map;
}
// Fetch Cell Label from Node
protected static String getLabel(Node node) {
String lab = null;
NodeList children = node.getChildNodes();
for (int j = 0; j < children.getLength(); j++) {
Node attr = children.item(j);
if (attr.getNodeName().equals("attr")
&& attr.getAttributes().getNamedItem("name").getNodeValue().equals(
"Label")) {
NodeList values = attr.getChildNodes();
for (int k = 0; k < values.getLength(); k++) {
if (values.item(k).getNodeName().equals("string")) {
Node labelNode = values.item(k).getFirstChild();
if (labelNode != null)
lab = labelNode.getNodeValue();
}
}
}
}
return (lab != null) ? lab : new String("");
}
/**
* Setter for the property validateDTD
*
* @param validate True, the validation will occur.
*/
public static void setValidateDTD(boolean validate){
validateDTD = validate;
}
/**
* Getter for the property validateDTD
*/
public static boolean getValidateDTD(){
return validateDTD;
}
}
The table below shows all metrics for JGraphGXLCodec.java.
| Metric | Value | Description | |
|---|---|---|---|
| BLOCKS | 99.00 | Number of blocks | |
| BLOCK_COMMENT | 29.00 | Number of block comment lines | |
| COMMENTS | 280.00 | Comment lines | |
| COMMENT_DENSITY | 0.70 | Comment density | |
| COMPARISONS | 105.00 | Number of comparison operators | |
| CYCLOMATIC | 110.00 | Cyclomatic complexity | |
| DECL_COMMENTS | 31.00 | Comments in declarations | |
| DOC_COMMENT | 198.00 | Number of javadoc comment lines | |
| ELOC | 401.00 | Effective lines of code | |
| EXEC_COMMENTS | 48.00 | Comments in executable code | |
| EXITS | 104.00 | Procedure exits | |
| FUNCTIONS | 29.00 | Number of function declarations | |
| HALSTEAD_DIFFICULTY | 78.20 | Halstead difficulty | |
| HALSTEAD_EFFORT | 0.00 | Halstead effort | |
| INTERFACE_COMPLEXITY | 106.00 | 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 | 3.00 | 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 | 1.00 | 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 | 0.00 | 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 | 10.00 | 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 | 0.00 | 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 | 18.00 | 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 | 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 | 0.00 | 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 | 1.00 | 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 | 1.00 | 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 | 4.00 | JAVA0108 Incorrect javadoc: no @param tag for 'parameter' | |
| JAVA0109 | 0.00 | JAVA0109 Incorrect javadoc: no parameter 'parameter' | |
| JAVA0110 | 2.00 | 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 | 1.00 | JAVA0114 Incorrect javadoc: no @version tag | |
| JAVA0115 | 1.00 | JAVA0115 Incorrect javadoc: no @throws or @exception tag for 'exception' | |
| JAVA0116 | 0.00 | JAVA0116 Missing javadoc: field 'field' | |
| JAVA0117 | 1.00 | 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 | 0.00 | JAVA0133 Non-synchronized method overrides synchronized method | |
| JAVA0135 | 0.00 | 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 | 0.00 | 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 | 0.00 | JAVA0143 Synchronized method | |
| JAVA0144 | 0.00 | JAVA0144 Line exceeds maximum M characters | |
| JAVA0145 | 11.00 | 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 | 8.00 | 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 | 2.00 | 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 | 1.00 | 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 | 1.00 | 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 | 3.00 | 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 | 2.00 | 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 | 819.00 | Number of lines in the source file | |
| LINE_COMMENT | 53.00 | Number of line comments | |
| LOC | 476.00 | Lines of code | |
| LOGICAL_LINES | 240.00 | Number of statements | |
| LOOPS | 11.00 | Number of loops | |
| NEST_DEPTH | 7.00 | Maximum nesting depth | |
| OPERANDS | 1498.00 | Number of operands | |
| OPERATORS | 2505.00 | Number of operators | |
| PARAMS | 57.00 | Number of formal parameter declarations | |
| PROGRAM_LENGTH | 4003.00 | Halstead program length | |
| PROGRAM_VOCAB | 476.00 | Halstead program vocabulary | |
| PROGRAM_VOLUME | 0.00 | Halstead program volume | |
| RETURNS | 49.00 | Number of return points from functions | |
| SIZE | 32201.00 | Size of the file in bytes | |
| UNIQUE_OPERANDS | 431.00 | Number of unique operands | |
| UNIQUE_OPERATORS | 45.00 | Number of unique operators | |
| WHITESPACE | 63.00 | Number of whitespace lines | |