pajeknode.java

网络分析软件pajek的数据格式转换工具。

//Skye Bender-deMoll draft translation code 2/13/01
//[e-mail]

package PajekConverter;

import java.text.*;
import java.util.*;

public class PajekNode extends Object
{
	//vars for pajek
	private int pajekId;			//numeric Id used by Pajek
	private Vector arcsList = new Vector();		//array of out connection pajekIds
	private Vector arcsColorList = new Vector();
	private Vector arcsWidthList = new Vector();
	private Vector arcsWeightList = new Vector();
	private String label = "";		//text label to appear in pajek
				//default values
	private String shape = "default";		//shape of node
	private String size = "default";		//relitive size of node
	private String color = "default";		//name of pajek color of node
	private String xCoord = "0.000";	//inital screen coordiates of node
	private String yCoord = "0.000";
	private String zCoord = "0.000";

	//status vars
	private boolean forOutput = true; //indicates whether this node is to be exported
	private boolean error = false;   //set if there is a parsing problem setting up the node
	private String errorItems = "";			//indicates where the first error occured

	public PajekNode(int id)		//instatiates new node with only ID and defaults
	{
		pajekId = id;
	}

	public PajekNode(int id, String lbl)  //new node with ID, label, and defualts
	{
		pajekId = id;
		label = lbl;
	}

	public PajekNode(int id, int link, String newLabel, String newShape, String newSize, String newColor, String x, String y)
	//new node with one link and all values except zCoord
	{
		pajekId = id;
		addLink(link);
		label = newLabel;
		shape = newShape;
		size = newSize;
		color = newColor;
		xCoord = x;
		yCoord = y;
	}


//-----------Accesors-------------------

//pajekId
	public void setPajekId(int val)
	{
		pajekId = val;
	}

	public int getPajekId()
	{
		return pajekId;
	}

//arcsList
	public void addLink(int val)
	{
		arcsList.add(new Integer(val));

		//check if link already exists, modify output so that they won't overlap
	}

	public int getLink(int index)
	{
		//returns int value of link at index, will throw exception if index out of range
		Integer link = (Integer)arcsList.get(index);
		return link.intValue();
	}

	public String getLinks()
	{
		//returns a space deliniated string of all link ids
		String returnList = "";
		Integer link;
		for (int i=0; i<arcsList.size(); i++)
		{
			link = (Integer)arcsList.get(i);
			returnList = returnList + link.intValue()+" ";
		}
		return returnList;
	}

//arcsColorList
	public void addArcColor(String str)
	{
			arcsColorList.add(str);

	}

	public String getArcColor(int index)
	{
		//returns string for the color catagory of the link at index, will throw exception if index out of range
		String color = (String)arcsColorList.get(index);
		return color;
	}

//arcsWidthList
	public void addArcWidth(double width)
	{
			arcsWidthList.add(new Double(width));
	}

	public double getArcWidth(int index)
	{
		//returns double value of link at index, will throw exception if index out of range
		Double width = (Double)arcsWidthList.get(index);
		return width.doubleValue();
	}

//arcsWeightList
	public void addArcWeight(double weight)
	{
			arcsWeightList.add(new Double(weight));
	}

	public double getArcWeight(int index)
	{
		//returns double value of link at index, will throw exception if index out of range
		Double weight = (Double)arcsWeightList.get(index);
		return weight.doubleValue();
	}


//label
	public void setLabel(String str)
	{
			label = str;
	}

	public String getLabel()
	{
		return label;
	}

// size
	public void setSize(String str)
	{
		size = str;
	}
	public String getSize()
	{
		return size;
	}

//color
	public void setColor(String str)
	{
			color = str;
	}

	public String getColor()
	{
		return color;
	}

//shape
	public void setShape(String str)
	{
			shape = str;
	}
	public String getShape()
	{
		return shape;
	}


//xCoord
	public void setXCoord(String str)
	{
		xCoord = str;
	}
	public String getXCoord()
	{
		return xCoord;
	}

//yCoord
	public void setYCoord(String str)
		{
			yCoord = str;
		}
	public String getYCoord()
	{
		return yCoord;
	}
//zCoord
	public void setZCoord(String str)
	{
		zCoord = str;
	}
	public String getZCoord()
	{
		return zCoord;
	}


//forOutput
	public boolean isForOutput()
	{
		return forOutput;
	}

//error
	public boolean isError()
	{
		return error;
	}

//errorItems
	public String getErrorItems()
	{
		return errorItems;
	}

//-----------METHODS------------------

//toPajekNodeString returns a string describing the node formatted for pajek
	public String toPajekNodeString()
	{
		String nodeString = "  "+pajekId+" \""+label+"\" "+xCoord+" "+yCoord+
						" "+shape+" x_fact "+size+" y_fact "+size+" ic "+color+" bw 0.5\r";
		return nodeString;
	}

//toPajekArcString returns a string describing each of the arcs of the node, formatted for pajek
	public String toPajekArcString()
	{
		String arcString ="";

		if (arcsList.size() > 0)
		{
			//loop over links, adding them to string with ID
			for (int i=0; i<arcsList.size(); i++)
			{
				//width is used both as the width and as a value for the weight
				arcString += "  "+pajekId+"  "+((Integer)arcsList.get(i)).toString()+" "+ //link
							((Double)arcsWeightList.get(i)).toString()+				//value
							" w "+((Double)arcsWidthList.get(i)).toString()+		//width
							" c "+(String)arcsColorList.get(i)+"\r";				//color
			}
		}
		return arcString;
	}


//-----------Utility Methods ----------

	 //to string
	 public String toString()
	 {
		 String returnString = pajekId+"\t"+getLinks().toString()+"\t"+label+"\t"+shape+"\t"+size+"\t"+color+"\t"+xCoord+"\t"+yCoord+"\t"+zCoord+"\n";
		return returnString;
	 }

}