/* * TouchGraph LLC. Apache-Style Software License * * * Copyright (c) 2002 Alexander Shapiro. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * 2. 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. * * 3. The end-user documentation included with the redistribution, * if any, must include the following acknowledgment: * "This product includes software developed by * TouchGraph LLC (http://www.touchgraph.com/)." * Alternately, this acknowledgment may appear in the software itself, * if and wherever such third-party acknowledgments normally appear. * * 4. The names "TouchGraph" or "TouchGraph LLC" must not be used to endorse * or promote products derived from this software without prior written * permission. For written permission, please contact * alex@touchgraph.com * * 5. Products derived from this software may not be called "TouchGraph", * nor may "TouchGraph" appear in their name, without prior written * permission of alex@touchgraph.com. * * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED 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 TOUCHGRAPH OR ITS 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. * ==================================================================== * */ import com.touchgraph.linkbrowser.LBNode; import com.touchgraph.linkbrowser.LBEdge; import com.touchgraph.graphlayout.graphelements.*; import com.touchgraph.graphlayout.Node; import com.touchgraph.graphlayout.Edge; import com.touchgraph.graphlayout.TGException; import java.io.*; import java.util.*; import java.net.*; import java.awt.*; import net.n3.nanoxml.*; import java.util.zip.ZipInputStream; import java.util.zip.GZIPInputStream; /**

C103to120: Converts XML files written by V 1.03 of the TouchGraph LinkBrowser * into those readable by V 1.20.

* * NanoXML is the open source XML parser used by the TouchGraph LinkBrowser * NanoXML is distrubuted under the zlib/libpng license * Copyrighted (c)2000-2001 Marc De Scheemaecker, All Rights Reserved * http://nanoxml.sourceforge.net/ * * @author Alexander Shapiro * @version 1.20 */ public class C103to120 { GraphEltSet graphEltSet; C103to120() { graphEltSet = new GraphEltSet(); } public void read(String fileName) throws Exception { InputStream xmlStream = new FileInputStream(fileName); IXMLParser parser = XMLParserFactory .createDefaultXMLParser(); StdXMLReader reader = new StdXMLReader(xmlStream); parser.setReader(reader); IXMLElement tglbXML = null; try { tglbXML = (IXMLElement) parser.parse(); } catch (Exception e) { System.out.println("LINE "+reader.getLineNr()); e.printStackTrace(); } xmlStream.close(); buildGraphEltSet(tglbXML); } private boolean getBooleanAttr(IXMLElement elt, String name, boolean def) { String value = elt.getAttribute(name, def? "true": "false"); return value.toLowerCase().equals("true"); } private String encodeColor(Color c) { if (c == null) return null; int rgb = c.getRGB()&0xffffff; String zeros = "000000"; String data = Integer.toHexString(rgb); return (zeros.substring(data.length()) + data).toUpperCase(); } public void buildGraphEltSet(IXMLElement tglbXML) throws TGException { IXMLElement nodeSet = (IXMLElement) tglbXML.getChildrenNamed("NODESET").firstElement(); Enumeration nodeEnum = (nodeSet).enumerateChildren(); while (nodeEnum.hasMoreElements()) { IXMLElement node = (IXMLElement)(nodeEnum.nextElement()); String nodeName = node.getAttribute("name"," "); String nodeUrl = node.getAttribute("url"," "); String nodeHint = node.getAttribute("hint",""); int x = node.getAttribute("x",0); int y = node.getAttribute("y",0); int col = node.getAttribute("col",0); //For backward compatibility Color color = Color.black; try { String colorString = node.getAttribute("color","#000000"); color = Color.decode(colorString); } catch ( NumberFormatException ex) {}; boolean urlIsLocal = getBooleanAttr(node, "urlIsLocal", false); boolean urlIsXML = getBooleanAttr(node, "urlIsXML", false); String nodeID = node.getAttribute("nodeID",null); if (nodeID==null) throw new TGException(TGException.NODE_NO_ID, "node has no ID"); LBNode newNode = new LBNode(nodeID, nodeName, nodeUrl); newNode.setVisible(true); newNode.setURLIsLocal(urlIsLocal); newNode.setURLIsXML(urlIsXML); newNode.setLocation(new Point(x,y)); newNode.setHint(nodeHint); switch (col) { case 0: newNode.setBackColor(color); break; case 1: newNode.setBackColor(new Color(160, 64, 0)); break; case 2: newNode.setBackColor(new Color(64, 160, 0)); break; case 3: newNode.setBackColor(new Color(0, 0, 224)); break; default: newNode.setBackColor(color); break; } graphEltSet.addNode(newNode); } IXMLElement edgeSet = (IXMLElement) tglbXML.getChildrenNamed("EDGESET").firstElement(); Enumeration edgeEnum = (edgeSet).enumerateChildren(); while (edgeEnum.hasMoreElements()) { IXMLElement edge = (IXMLElement)(edgeEnum.nextElement()); String fromID = edge.getAttribute("fromID",null); String toID = edge.getAttribute("toID",null); int tension = edge.getAttribute("tension", 4000); //For backward compatibility int length = edge.getAttribute("length", 4000); int edgeType = edge.getAttribute("type", 1); if (length ==0) length= tension; Color color= Edge.DEFAULT_COLOR; try { String colorString = edge.getAttribute("color",null); if (colorString!=null) color = Color.decode(colorString); } catch ( NumberFormatException ex) {}; LBNode fromNode = (LBNode) graphEltSet.findNode(fromID); LBNode toNode = (LBNode) graphEltSet.findNode(toID); LBEdge newEdge = new LBEdge(fromNode,toNode, length/100); newEdge.setVisible(true); newEdge.setColor(color); switch (edgeType) { case 0: newEdge.edgeType = LBEdge.BIDIRECTIONAL_EDGE; break; case 1: newEdge.edgeType = LBEdge.HIERARCHICAL_EDGE; break; default: newEdge.edgeType = LBEdge.BIDIRECTIONAL_EDGE; break; } graphEltSet.addEdge(newEdge); } } public void write(String fileName) throws Exception { OutputStream out = new FileOutputStream(fileName); XMLElement tglbXML = new XMLElement("TOUCHGRAPH_LB"); tglbXML.setAttribute("version", "1.20"); final XMLElement nodeSet = new XMLElement("NODESET"); tglbXML.addChild(nodeSet); TGForEachNode fen = new TGForEachNode() { public void forEachNode( Node node ) { LBNode lbNode = (LBNode) node; XMLElement nodeElt = new XMLElement("NODE"); nodeElt.setAttribute("nodeID", lbNode.getID()); XMLElement nodeLocation = new XMLElement("NODE_LOCATION"); nodeLocation.setAttribute("x", ""+(int) lbNode.getLocation().getX()); nodeLocation.setAttribute("y", ""+(int) lbNode.getLocation().getY()); nodeLocation.setAttribute("visible", lbNode.isVisible() ? "true" : "false"); nodeElt.addChild(nodeLocation); XMLElement nodeLabel = new XMLElement("NODE_LABEL"); nodeLabel.setAttribute("label", lbNode.getLabel()); nodeLabel.setAttribute("shape", ""+lbNode.getType()); nodeLabel.setAttribute("backColor", encodeColor(lbNode.getBackColor())); nodeLabel.setAttribute("textColor", encodeColor(lbNode.getTextColor())); nodeLabel.setAttribute("fontSize", ""+lbNode.getFont().getSize()); nodeElt.addChild(nodeLabel); XMLElement nodeURL = new XMLElement("NODE_URL"); nodeURL.setAttribute("url", lbNode.getURL()); nodeURL.setAttribute("urlIsLocal", lbNode.getURLIsLocal() ? "true" : "false"); nodeURL.setAttribute("urlIsXML", lbNode.getURLIsXML() ? "true" : "false"); nodeElt.addChild(nodeURL); XMLElement nodeHint = new XMLElement("NODE_HINT"); nodeHint.setAttribute("hint", lbNode.getHint()); nodeHint.setAttribute("width", ""+lbNode.getHintWidth()); nodeHint.setAttribute("height", ""+lbNode.getHintHeight()); nodeHint.setAttribute("isHTML", lbNode.getHintIsHTML() ? "true" : "false"); nodeElt.addChild(nodeHint); nodeSet.addChild(nodeElt); } }; graphEltSet.forAllNodes(fen); final XMLElement edgeSet = new XMLElement("EDGESET"); tglbXML.addChild(edgeSet); TGForEachEdge fee = new TGForEachEdge() { public void forEachEdge( Edge edge ) { LBEdge lbEdge = (LBEdge) edge; XMLElement edgeElt = new XMLElement("EDGE"); edgeElt.setAttribute("fromID", lbEdge.getFrom().getID()); edgeElt.setAttribute("toID", lbEdge.getTo().getID()); edgeElt.setAttribute("type", ""+lbEdge.getType()); edgeElt.setAttribute("length", ""+(int) lbEdge.getLength()); edgeElt.setAttribute("visible", lbEdge.isVisible() ? "true" : "false"); edgeElt.setAttribute("color", encodeColor(lbEdge.getColor())); edgeSet.addChild(edgeElt); } }; graphEltSet.forAllEdges(fee); XMLElement parameters = new XMLElement("PARAMETERS"); tglbXML.addChild(parameters); InputStream prependDTD = getClass().getResourceAsStream("/TG_Prepend_DTD.xml"); int c; //Slow, but gets the job done for small files while((c = prependDTD.read())!=-1) { out.write(c); } prependDTD.close(); XMLWriter writer = new XMLWriter(out); writer.write(tglbXML, true); out.close(); } public static void main(String[] args) { if (args.length != 2) { System.out.println("Usage: C103to120 source_file destination_file"); return; } C103to120 convert = new C103to120(); try { convert.read(args[0]); convert.write(args[1]); } catch (Exception e) { e.printStackTrace(); } } }