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An efficient, fast, convenient, easy to learn, easy to use MVC framework and ORM framework. It is seamless compatible with JSTL and supports FreeMarker. It can run independently, and it can also be applied to traditional Java Web projects. It is an efficient, fast, convenient, easy to learn and easy to use MVC framework and ORM framework. It is seamless compatible with JSTL and supports FreeMarker. It can be run on its own, or it can be applied to traditional Java Web projects

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package org.docshare.mvc;

import java.io.File;
import java.io.IOException;

import org.codehaus.groovy.control.CompilationFailedException;
import org.docshare.log.Log;
import org.docshare.util.FileTool;
import org.docshare.util.TextTool;

import groovy.lang.GroovyClassLoader;

/**
 * 支持groovy的reloader
 * @author lenovo
 *
 */
public class GroovyReloader extends Reloader {

	public GroovyReloader(){
		
	}
	public GroovyReloader(String clsRoot, String reloadPkg) {
		super(clsRoot, reloadPkg);
	}
	
	public Class load(String clsName) throws ClassNotFoundException{
		if(!Config.reloadable){
			Class ret = Class.forName(clsName);
			MethodAccessCacher.putIfNoExist(clsName,ret);
		}
		//下面是打开了reloadable选项后的功能
		
		ClassLoader loader  = classIsUpdate(clsName);
		
		//如果发现有groovy文件
		if(loader == groovyLoader){
			String path = clsToPath(clsName);
			
			String groovy_path = Config.getProperty("groovy", "groovy");
			File c = new File(groovy_path,path.replace(".class",".groovy")); //找groovy源代码
			if(c.exists()){
				try {
					
					return groovyLoader.parseClass(c);
				} catch (CompilationFailedException | IOException e) {
					Log.e(e);
				}
			}
			Log.d("file path "+ c.getAbsolutePath());
			
		}
		
		return Class.forName(clsName, true, loader);
	}
	GroovyClassLoader groovyLoader = null;
	/**
	 * 检查是否更新了，如果更新了。返回真，并记录这一次的文件修改时间
	 * @param clsName 类名
	 * @return 类加载器
	 */
	public ClassLoader classIsUpdate(String clsName){
		String path = clsToPath(clsName);
		
		String groovy_path = Config.getProperty("groovy", "groovy");
		File c = new File(groovy_path,path.replace(".class",".groovy")); //找groovy源代码
		if(c.exists()){
			path = c.getAbsolutePath();
		}else if(! FileTool.exists(path) && FileTool.exists("bin/") && ! path.contains("bin/") ){
			c = new File("bin",path);
		}

		long now = c.lastModified();
		if(last_tm.containsKey(path)){
			long last = last_tm.get(path);
			if(now > last){ //如果文件比较新，则创建新的loader
				last_tm.put(path,now);		
				return newLoader(c);
			}else{//否则用旧的
				if(path.endsWith(".groovy")){
					return groovyLoader;
				}else return loader;
			}
		}else{ //如果是第一次
			last_tm.put(path, now);
			
		}
		if(path.endsWith(".groovy")){
			return  groovyLoader != null? groovyLoader: newLoader(c);
		}else return loader != null? loader: newLoader(c);

		
	}
	private ClassLoader newLoader(File f){
		Log.d("load new file: "+f.getAbsolutePath());
		
		if(f.getName().endsWith(".groovy") && f.exists()){
			groovyLoader =   new GroovyClassLoader();
			return groovyLoader;
		}else{
			loader = new YangClassLoader(++loaderVersion,root,reloadPkg);
			return loader;
			
		}
	}

}