package Web;

import java.util.logging.Level;
import java.util.logging.Logger;
import javax.tools.JavaCompiler;
import javax.tools.ToolProvider;

/**
 * 动态编译Java文件
 *
 * @author Ma
 */
public class TplCompile {

 public String TemplatePath = Options.TemplatePath;

 /*
 public static void main(String[] args) {
 TplCompile Compiler = new TplCompile();
 Compiler.setTemplatePath();
 Compiler.run("dd/test.html");
 }*/
 public void setTemplatePath() {
 this.TemplatePath = Options.TemplatePath;
 }

 /**
 * 开始编译
 */
 public Object run(String fileName) {
 this.setTemplatePath();//先配置路径
 TemplateCompile templateCompile = new TemplateCompile();
 int r = templateCompile.start(fileName);
 if (r > 0 && r == 1) {
 //1表示说明文件不存在
 //0表示解析正常
 return null;
 }
 String javaFile = this.TemplatePath + templateCompile.getFilePath(fileName) + "/" + templateCompile.getfileName(fileName) + "Template.java";
 String classPath = this.getClass().getResource("/").getPath();
 //动态编译
 JavaCompiler javac = ToolProvider.getSystemJavaCompiler();
 int status = javac.run(null, null, null, "-d", classPath, javaFile);
 if (status != 0) {
 System.out.println("没有编译成功!");
 }

 //动态执行
 try {
 //返回与带有给定字符串名的类 或接口相关联的 Class 对象。

 Class cls = Class.forName("Template." + templateCompile.getFilePath(fileName).replace("/", ".") + templateCompile.getfileName(fileName) + "Template");
 BaseTemplate object = (BaseTemplate) cls.newInstance();
 return object;
 } catch (ClassNotFoundException ex) {
 Logger.getLogger(TplCompile.class.getName()).log(Level.SEVERE, null, ex);
 } catch (InstantiationException ex) {
 Logger.getLogger(TplCompile.class.getName()).log(Level.SEVERE, null, ex);
 } catch (IllegalAccessException ex) {
 Logger.getLogger(TplCompile.class.getName()).log(Level.SEVERE, null, ex);
 }
 return null;
 }
}