pajekconverter.java

网络分析软件pajek的数据格式转换工具。

			String statusText = StatusDisplay.getText()+"Nodes Exported:";

			for (int i=0; i<nodes.size(); i++)
			{
				PajekNode workNode = (PajekNode)nodes.get(i);
				vertBody.append(workNode.toPajekNodeString());
				arcBody.append(workNode.toPajekArcString());
				//show id of node as it is exported
				StatusDisplay.setText(statusText+(i+1)+"\n");
			}
			String outString = vertHeader+vertBody+arcHeader+arcBody;

// GET FILE NAME FOR OUTPUT -----------------------
			//bring up save dialog to get names for file output, but do not open file yet
			FileDialog locateOutput = new FileDialog(this, "Enter file name and choose directory for data output", FileDialog.SAVE);

			//throw up open dialog
			locateOutput.setSize(450,300);
			locateOutput.setFile(defaultName+suffix);
			locateOutput.setVisible(true);
			outputFileName = locateOutput.getFile();
			outputPathName = locateOutput.getDirectory();

//WRITE TEXT TO FILE -----------------------------
			//check if user canceled save dialog don't output data to flie (but still do to screen)
			if ((outputFileName != null) && (outputPathName != null))
			{
				//report file status to status area
				StatusDisplay.append("Exporting parsed text to file: "+ outputPathName + outputFileName+"\n");

				//create new file (default family name?)
				try
				{
					//give fileobject name and path from dialog	globals
					File outfile = new File(outputPathName, outputFileName);
					//make new outputstream
					FileOutputStream outStream = new FileOutputStream(outfile);
					//make new printwrinter
					PrintWriter outWriter = new PrintWriter(outStream,true);

					//ask printwriter to output string to file
					outWriter.println(outString);

					//close connection to file
					outStream.close();
					StatusDisplay.append("Export Complete\n");

				}catch (IOException error)
				{
					StatusDisplay.append("Error saving output file " + error.toString()+"\n");
				}
			}
		}
		//reset vals
		/*
		nodes.clear();
		nextNodeId = 1;
		numCols=0;
		numAbsAttributes = 0;
		absAttributes = new String[9];
		StatusDisplay.append("Data cleared, ready for new network.\n");
		*/
	}

//EXPORT PARTITION DIALOG -----------------------------------
	public void exportPartDialog()
	{
		//throw up dialog asking which node var to export
		Dialog whichVar = new Dialog(this, "Choose node attribute to export as Partition",true);
		whichVar.setSize(500,75);
		whichVar.setLocation(225,550);
		//make new layout
		whichVar.setLayout(new GridBagLayout());

		//make objects for layout and add listeners
		Button CancelButton = new Button("Cancel");
		CancelButton.addActionListener(this);
		Button OkButton = new Button("Export Partition");
		OkButton.addActionListener(this);
		CheckboxGroup cbg = new CheckboxGroup();
		//put components in window
		whichVar.add(new Checkbox("Node Label", cbg, true));
		whichVar.add(new Checkbox("Node Shape", cbg, false));
      	whichVar.add(new Checkbox("Node Color", cbg, false));
		whichVar.add(OkButton);
		whichVar.add(CancelButton);
		//put it on screen
		whichVar.show();
	}
//EXPORT PARTITION ------------------------------------------------
	public void exportPart(String varToExport)
	{
		if (parsed == false)
		{
			StatusDisplay.append("Text must be parsed before output. \n");
		}
		else
		{
			StatusDisplay.append("Assembling partition...\n");
			//assmeble data
			String vertHeader = "*Vertices "+nodes.size()+"\r";
			StringBuffer vertBody = new StringBuffer(5*nodes.size()); //start with approx  capcity to
			String[] textArray = new String[nodes.size()];   //hold strings comming from nodes
			int nextClass = 1;
			Hashtable textToClass = new Hashtable();   //holds text to class associations

	//LABEL
			if (varToExport.equals("Node Label"))
			{
				for (int i=0; i<nodes.size(); i++)
				{
					//copy from nodes into textArray
					textArray[i] = ((PajekNode)nodes.elementAt(i)).getLabel();
				}
			}
	//SHAPE
			if (varToExport.equals("Node Shape"))
			{
				for (int i=0; i<nodes.size(); i++)
				{
					//copy from nodes into textArray
					textArray[i] = ((PajekNode)nodes.elementAt(i)).getShape();
				}
			}
	//COLOR
			if (varToExport.equals("Node Color"))
			{
				for (int i=0; i<nodes.size(); i++)
				{
					//copy from nodes into textArray
					textArray[i] = ((PajekNode)nodes.elementAt(i)).getColor();
				}
			}

			//convert text to class int
			for (int i=0; i<nodes.size(); i++)
			{
				//if the label is already used, copy class to classArray
				if (textToClass.containsKey(textArray[i]))
				{
					vertBody.append("   "+ (Integer)textToClass.get(textArray[i])+"\r");
				}
				else
				{
					textToClass.put(textArray[i],(new Integer(nextClass)));
					nextClass++;
					vertBody.append("   "+ (Integer)textToClass.get(textArray[i])+"\r");
				}
			}

			String outString = vertHeader+vertBody;
			//debug
			//InputDisplay.setText(outString);

		// GET FILE NAME FOR OUTPUT -----------------------
			//bring up save dialog to get names for file output, but do not open file yet
			FileDialog locateOutput = new FileDialog(this, "Enter file name and choose directory for data output", FileDialog.SAVE);

			//throw up open dialog
			locateOutput.setSize(450,300);
			locateOutput.setFile("nodePartition.clu");
			locateOutput.setVisible(true);
			outputFileName = locateOutput.getFile();
			outputPathName = locateOutput.getDirectory();

		//WRITE TEXT TO FILE -----------------------------
			//check if user canceled save dialog don't output data to flie (but still do to screen)
			if ((outputFileName != null) && (outputPathName != null))
			{
				//report file status to status area
				StatusDisplay.append("Exporting partition to file: "+ outputPathName + outputFileName+"\n");

				//create new file (default family name?)
				try
				{
					//give fileobject name and path from dialog	globals
					File outfile = new File(outputPathName, outputFileName);
					//make new outputstream
					FileOutputStream outStream = new FileOutputStream(outfile);
					//make new printwrinter
					PrintWriter outWriter = new PrintWriter(outStream,true);

					//ask printwriter to output string to file
					outWriter.println(outString);

					//close connection to file
					outStream.close();
					StatusDisplay.append("Partition saved.\n");

				}catch (IOException error)
				{
					StatusDisplay.append("Error saving partition file " + error.toString()+"\n");
				}
			}
		}
	}
//EXPORT VECTOR DIALOG -------------------------------------------------
	public void exportVectorDialog()
	{
		//throw up dialog asking which node var to export
		Dialog whichVar = new Dialog(this, "Choose node attribute to export as Vector",true);
		whichVar.setSize(500,75);
		whichVar.setLocation(225,575);
		//make new layout
		whichVar.setLayout(new GridBagLayout());

		//make objects for layout and add listeners
		Button CancelButton = new Button("Cancel");
		CancelButton.addActionListener(this);
		Button OkButton = new Button("Export Vector");
		OkButton.addActionListener(this);
		CheckboxGroup cbg = new CheckboxGroup();
		//put components in window
		whichVar.add(new Checkbox("Node Size", cbg, true));
		whichVar.add(new Checkbox("X coordinate", cbg, false));
		whichVar.add(new Checkbox("Y coordinate", cbg, false));
		whichVar.add(OkButton);
		whichVar.add(CancelButton);
		//put it on screen
		whichVar.show();
	}
//EXPORT VECTOR - ------------------------------------------------------------------
	public void exportVector(String varToExport)
	{
		if (parsed == false)
		{
			StatusDisplay.append("Text must be parsed before output. \n");
		}
		else
		{
			StatusDisplay.append("Assembling vector...\n");
			//assmeble data
			String vertHeader = "*Vertices "+nodes.size()+"\r";
			StringBuffer vertBody = new StringBuffer(5*nodes.size()); //start with approx  capcity to

	//SIZE
			if (varToExport.equals("Node Size"))
			{
				for (int i=0; i<nodes.size(); i++)
				{
					//copy size from nodes
					vertBody.append("   "+((PajekNode)nodes.elementAt(i)).getSize()+"\r");
				}
			}
	//X
			if (varToExport.equals("X coordinate"))
			{
				for (int i=0; i<nodes.size(); i++)
				{
					//copy x coord from nodes
					vertBody.append("   "+((PajekNode)nodes.elementAt(i)).getXCoord()+"\r");
				}
			}
	//Y
			if (varToExport.equals("Y coordinate"))
			{
				for (int i=0; i<nodes.size(); i++)
				{
					//copy y coord from nodes
					vertBody.append("   "+((PajekNode)nodes.elementAt(i)).getYCoord()+"\r");
				}
			}


			String outString = vertHeader+vertBody;
			//debug
			//InputDisplay.setText(outString);

		// GET FILE NAME FOR OUTPUT -----------------------
			//bring up save dialog to get names for file output, but do not open file yet
			FileDialog locateOutput = new FileDialog(this, "Enter file name and choose directory for data output", FileDialog.SAVE);

			//throw up open dialog
			locateOutput.setSize(450,300);
			locateOutput.setFile("nodeVector.vec");
			locateOutput.setVisible(true);
			outputFileName = locateOutput.getFile();
			outputPathName = locateOutput.getDirectory();

		//WRITE TEXT TO FILE -----------------------------
			//check if user canceled save dialog don't output data to flie (but still do to screen)
			if ((outputFileName != null) && (outputPathName != null))
			{
				//report file status to status area
				StatusDisplay.append("Exporting vector to file: "+ outputPathName + outputFileName+"\n");

				//create new file (default family name?)
				try
				{
					//give fileobject name and path from dialog	globals
					File outfile = new File(outputPathName, outputFileName);
					//make new outputstream
					FileOutputStream outStream = new FileOutputStream(outfile);
					//make new printwrinter
					PrintWriter outWriter = new PrintWriter(outStream,true);

					//ask printwriter to output string to file
					outWriter.println(outString);

					//close connection to file
					outStream.close();
					StatusDisplay.append("vector saved.\n");

				}catch (IOException error)
				{
					StatusDisplay.append("Error saving vector file " + error.toString()+"\n");
				}
			}
		}
	}


	//------------ UTILITY METHODS --------------------------------------

	//parse field takes text and returns a column assigment.  If text starts with
	//"$", it makes the text the attribute. returns 0 if unable to parse
	public int parseField(String str)
	{
		int returnInt = 0;
		str.trim();
		if(str.startsWith("$"))
		{
			// trim off $
			str = str.substring(1,str.length());
			//put string in abs attributes array
			absAttributes[numAbsAttributes] = str;
			//give adress for "dummy" col
			returnInt = numAbsAttributes+1;
			//increment
			numAbsAttributes++;
		}
		else
		{
			try
			{
				returnInt = new DecimalFormat().parse(str).intValue();
			}
			catch(ParseException e)
			{
			}
			//numCols equal the largest value parsed
			if (returnInt > numCols)
			{
					numCols = returnInt;
			}

			//if it was a genuine col assiment, add the offset of 10
			if (returnInt != 0)
			{
				returnInt += 9;
			}
		{

		}


		}
		return returnInt;
	}


	//ACTION PERFORMED gets the name of the button clicked and calls the aproprate method
	public void actionPerformed(ActionEvent evt)
	{
		Button btn = (Button)evt.getSource();
		String whichBtn = btn.getLabel();
		if(whichBtn.equals("Parse Text"))
		{
			parse();
		}
		if(whichBtn.equals("Export network..."))
		{
			export();
		}
		if(whichBtn.equals("Export partition..."))
		{
			exportPartDialog();
		}
		if(whichBtn.equals("Export vector..."))
		{
			exportVectorDialog();
		}
		if(whichBtn.equals("Reset/Clear network"))
		{
			reset();
		}
		if(whichBtn.equals("Cancel"))
		{
			((Dialog)btn.getParent()).dispose();
		}
		if(whichBtn.equals("Export Partition"))
		{
			//figure out which option was checked
			String checked = ((((Checkbox)((Dialog)btn.getParent()).getComponent(1)).getCheckboxGroup()).getSelectedCheckbox()).getLabel();
			exportPart(checked);
			((Dialog)btn.getParent()).dispose();
		}
		if(whichBtn.equals("Export Vector"))
		{
			//figure out which option was checked
			String checked = ((((Checkbox)((Dialog)btn.getParent()).getComponent(1)).getCheckboxGroup()).getSelectedCheckbox()).getLabel();
			exportVector(checked);
			((Dialog)btn.getParent()).dispose();
		}


	}
	//TEXT AREA LISTENER  indicates that object representation of the text may no longer be valid
	class TextChangeListener implements TextListener {
		public void textValueChanged(TextEvent e){
			if((e.getID() == TextEvent.TEXT_VALUE_CHANGED))
			{
				//parsed = false;
			}
		}
	}

	//WINDOW LISTENERS windowClosing closes window when close box is clicked
	//the rest just have to be there I Guess...
	public void windowClosing (WindowEvent evt){
		  System.exit(0);
	}

	public void windowActivated(WindowEvent evt){}
	public void windowClosed(WindowEvent evt){}
	public void windowDeactivated(WindowEvent evt){}
	public void windowDeiconified(WindowEvent evt){}
	public void windowIconified(WindowEvent evt){}
	public void windowOpened(WindowEvent evt){}

}