codegeneratorloader.java

基于eclipse的工具开发代码

package com.cownew.studio.modelDev.codeGen;

import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.UnsupportedEncodingException;
import java.util.List;

import org.dom4j.Document;
import org.dom4j.DocumentException;
import org.dom4j.io.SAXReader;
import org.dom4j.tree.DefaultElement;
import org.eclipse.core.runtime.FileLocator;
import org.eclipse.core.runtime.Path;

import com.cownew.studio.Activator;

public class CodeGeneratorLoader
{
	public static CodeGeneratorInfo[] loadAll()
	{
		InputStream stream = null;
		CodeGeneratorInfo[] infos = null;
		try
		{
			stream = FileLocator.openStream(Activator.getDefault().getBundle(),
					new Path("config.xml"), false);
			Document doc = new SAXReader().read(new InputStreamReader(stream,
					"UTF-8"));
			List itemList = doc.selectNodes("//Config/CodeGenerators/Item");
			infos = new CodeGeneratorInfo[itemList.size()];
			for (int i = 0, n = itemList.size(); i < n; i++)
			{
				DefaultElement beanElement = (DefaultElement) itemList.get(i);
				String name = beanElement.getText();
				String className = beanElement.attributeValue("class");

				CodeGeneratorInfo info = new CodeGeneratorInfo();
				info.setName(name);
				info.setClassName(className);
				infos[i] = info;
			}

		} catch (UnsupportedEncodingException e)
		{
			Activator.logException(e);
		} catch (DocumentException e)
		{
			Activator.logException(e);
		} catch (IOException e)
		{
			Activator.logException(e);
		} finally
		{
			closeStream(stream);
		}
		return infos;
	}

	private static void closeStream(InputStream stream)
	{
		if (stream != null)
		{
			try
			{
				stream.close();
			} catch (IOException e)
			{
				Activator.logException(e);
			}
		}
	}
}