templatefactory.java

JGraph扩展应用。自定义Renderer,自定义视图View实现自定义工作流控件

/**
 * 
 */
package flow.graph.gui.graph.template;

import java.beans.XMLDecoder;
import java.io.BufferedInputStream;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FilenameFilter;
import java.util.Vector;

import flow.graph.gui.graph.encoder.XMLEncoder;

/**
 * @author Administrator
 *
 */

public class TemplateFactory {
	public final static String TEMPLATE_PATH = "template";
	public final static String CACHE_PATH = "cache";
	public final static String CACHE_FILE = "cache.xml";
	public final static String FUNCTION_FILES = "function.xml";
	
	public static Templates loadTemplate(){
		System.out.println("加载模板库...");
		checkCachePath();
		Templates templates = new Templates();
		if(!checkTemplatePath())
			return templates;
		String templatePath = System.getProperty("user.dir")+"/"+TEMPLATE_PATH;
		File file = new File(templatePath);
		if(file.exists()){//总目录
			String[] files = file.list();
			for(int i=0;i<files.length;i++){
				String strFile = templatePath+"/"+files[i];
				File tmpfile = new File(strFile);
				if(tmpfile.isDirectory()){
					Template template = new Template(files[i]);//创建模版
					//查找子目录中的模板文件
					String[] templateFile = tmpfile.list(new TemplateFileNameFilter("xml"));
					for(int j=0;j<templateFile.length;j++){
						//System.out.println(strFile+"/"+templateFile[j]);
						int pos = templateFile[j].lastIndexOf(".");
						String name = templateFile[j].substring(0, pos);
						Vector v, m;
						
						//GraphTemplate graphTemplate = new GraphTemplate(name, readGraphFile(strFile+"/"+templateFile[j]));
						GraphTemplate graphTemplate = new GraphTemplate(name, strFile+"/"+templateFile[j]);
						//PrintGraphCell(graphTemplate.getGraphTemplate().toArray());
						template.addTemplate(graphTemplate);
					}
					templates.addTemplate(template);
				}
			}
		}
		return templates;
	}

	public static boolean checkTemplatePath(){
		String templatePath = System.getProperty("user.dir")+"/"+TEMPLATE_PATH;
		File file = new File(templatePath);
		if(!file.exists()){
			file.mkdir();
			return false;
		}
		return true;
	}
	
	public static boolean checkCachePath(){
		String templatePath = System.getProperty("user.dir")+"/"+CACHE_PATH;
		File file = new File(templatePath);
		if(!file.exists()){
			file.mkdir();
			return false;
		}
		return true;
	}
	
	public static Vector readGraphFile(String s){
		try {
			XMLDecoder dec = new XMLDecoder(new BufferedInputStream(new FileInputStream(s)));
			Vector vec = (Vector)dec.readObject();
			dec.close();
			return vec;
		} catch (FileNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		return null;
	}

	private static void PrintGraphCell(Object[] cell){
		System.out.println("PrintGraphCell..........");
		ByteArrayOutputStream bout = new ByteArrayOutputStream();
		XMLEncoder enc = new XMLEncoder(bout);
		enc.writeObject(cell);
		enc.close();
		System.out.println(bout);
	}
	
	public static void main(String[] args){
		String templatePath = System.getProperty("user.dir")+"/"+TEMPLATE_PATH;
		File file = new File(templatePath);
		if(file.exists()){
			String[] files = file.list();
			for(int i=0;i<files.length;i++){
				String strFile = templatePath+"/"+files[i];
				File tmpfile = new File(strFile);
				if(tmpfile.isDirectory()){
					//查找子目录中的模板文件
					String[] templateFile = tmpfile.list(new TemplateFileNameFilter("xml"));
					for(int j=0;j<templateFile.length;j++){
						System.out.println(strFile+"/"+templateFile[j]);
					}
				}
			}
		}
	}
	
	public static class TemplateFileNameFilter implements FilenameFilter{
		private String suffix;
		public TemplateFileNameFilter(String suffix) {
			this.suffix = suffix;
		}
		public boolean accept(File dir, String name) {
			return name.endsWith(suffix) || dir.isDirectory();
		}
	}
	public static class TemplateFileFilter implements FilenameFilter{
		private String suffix;
		public TemplateFileFilter(String suffix) {
			this.suffix = suffix;
		}
		public boolean accept(File dir, String name) {
			return name.endsWith(suffix) || dir.isDirectory();
		}
	}
}