main.java

jetty SERVER連接資料庫用的軟體

                    else if (condition.equals("property"))
                    {
                        String property=System.getProperty(st.nextToken());
                        eval=property!=null&&property.length()>0;
                    }
                    else if (condition.equals("java"))
                    {
                        String operator=st.nextToken();
                        String version=st.nextToken();
                        ver.parse(version);
                        eval=(operator.equals("<")&&java_version.compare(ver)<0)||(operator.equals(">")&&java_version.compare(ver)>0)
                                ||(operator.equals("<=")&&java_version.compare(ver)<=0)||(operator.equals("=<")&&java_version.compare(ver)<=0)
                                ||(operator.equals("=>")&&java_version.compare(ver)>=0)||(operator.equals(">=")&&java_version.compare(ver)>=0)
                                ||(operator.equals("==")&&java_version.compare(ver)==0)||(operator.equals("!=")&&java_version.compare(ver)!=0);
                    }
                    else if (condition.equals("nargs"))
                    {
                        String operator=st.nextToken();
                        int number=Integer.parseInt(st.nextToken());
                        eval=(operator.equals("<")&&nargs<number)||(operator.equals(">")&&nargs>number)||(operator.equals("<=")&&nargs<=number)
                                ||(operator.equals("=<")&&nargs<=number)||(operator.equals("=>")&&nargs>=number)||(operator.equals(">=")&&nargs>=number)
                                ||(operator.equals("==")&&nargs==number)||(operator.equals("!=")&&nargs!=number);
                    }
                    else
                    {
                        System.err.println("ERROR: Unknown condition: "+condition);
                        eval=false;
                    }
                    expression&=not?!eval:eval;
                    not=false;
                }
                String file=expand(subject).replace('/',File.separatorChar);
                if (_debug)
                    System.err.println((expression?"T ":"F ")+line);
                if (!expression)
                {
                    done.put(file,file);
                    continue;
                }
                // Handle the subject
                if (subject.indexOf("=")>0)
                {
                    int i=file.indexOf("=");
                    String property=file.substring(0,i);
                    String value=file.substring(i+1);
                    if (_debug)
                        System.err.println("  "+property+"="+value);
                    System.setProperty(property,value);
                }
                else if (subject.endsWith("/*"))
                {
                    // directory of JAR files - only add jars and zips
                    // within the directory
                    File dir=new File(file.substring(0,file.length()-1));
                    addJars(dir,done,false);
                }
                else if (subject.endsWith("/**"))
                {
                    //directory hierarchy of jar files - recursively add all
                    //jars and zips in the hierarchy
                    File dir=new File(file.substring(0,file.length()-2));
                    addJars(dir,done,true);
                }
                else if (subject.endsWith("/"))
                {
                    // class directory
                    File cd=new File(file);
                    String d=cd.getCanonicalPath();
                    if (!done.containsKey(d))
                    {
                        done.put(d,d);
                        boolean added=_classpath.addComponent(d);
                        if (_debug)
                            System.err.println((added?"  CLASSPATH+=":"  !")+d);
                    }
                }
                else if (subject.toLowerCase().endsWith(".xml"))
                {
                    // Config file
                    File f=new File(file);
                    if (f.exists())
                        _xml.add(f.getCanonicalPath());
                    if (_debug)
                        System.err.println("  ARGS+="+f);
                }
                else if (subject.toLowerCase().endsWith(".class"))
                {
                    // Class
                    String cn=expand(subject.substring(0,subject.length()-6));
                    if (cn!=null&&cn.length()>0)
                    {
                        if (_debug)
                            System.err.println("  CLASS="+cn);
                        _classname=cn;
                    }
                }
                else if (subject.toLowerCase().endsWith(".path"))
                {
                    //classpath (jetty.class.path?) to add to runtime classpath
                    String cn=expand(subject.substring(0,subject.length()-5));
                    if (cn!=null&&cn.length()>0)
                    {
                        if (_debug)
                            System.err.println("  PATH="+cn);
                        _classpath.addClasspath(cn);
                    }                  
                }
                else
                {
                    // single JAR file
                    File f=new File(file);
		    if(f.exists())
		    {
			String d=f.getCanonicalPath();
			if (!done.containsKey(d))
			{
			    done.put(d,d);
			    boolean added=_classpath.addComponent(d);
			    if (!added)
			    {
				added=_classpath.addClasspath(expand(subject));
				if (_debug)
				    System.err.println((added?"  CLASSPATH+=":"  !")+d);
			    }
			    else if (_debug)
				System.err.println((added?"  CLASSPATH+=":"  !")+d);
		        }
                    }
                }
            }
            catch (Exception e)
            {
                System.err.println("on line: '"+line+"'");
                e.printStackTrace();
            }
        }
    }

    /* ------------------------------------------------------------ */
    public void start(String[] args)
    {
        ArrayList al=new ArrayList();
        for (int i=0; i<args.length; i++)
        {
            if (args[i]==null)
                continue;
            else
                al.add(args[i]);
        }
        args=(String[])al.toArray(new String[al.size()]);
        // set up classpath:
        InputStream cpcfg=null;
        try
        {
            Monitor.monitor();

            cpcfg=getClass().getClassLoader().getResourceAsStream(_config);
            if (_debug)
                System.err.println("config="+_config);
            if (cpcfg==null)
                cpcfg=new FileInputStream(_config);
            configure(cpcfg,args.length);
            File file=new File(System.getProperty("jetty.home"));
            String canonical=file.getCanonicalPath();
            System.setProperty("jetty.home",canonical);
        }
        catch (Exception e)
        {
            e.printStackTrace();
            System.exit(1);
        }
        finally
        {
            try
            {
                cpcfg.close();
            }
            catch (Exception e)
            {
                e.printStackTrace();
            }
        }
        // okay, classpath complete.
        System.setProperty("java.class.path",_classpath.toString());
        ClassLoader cl=_classpath.getClassLoader();
        if (_debug)
        {
            System.err.println("java.class.path="+System.getProperty("java.class.path"));
            System.err.println("jetty.home="+System.getProperty("jetty.home"));
            System.err.println("java.io.tmpdir="+System.getProperty("java.io.tmpdir"));
            System.err.println("java.class.path="+_classpath);
            System.err.println("classloader="+cl);
            System.err.println("classloader.parent="+cl.getParent());
        }
        // Invoke main(args) using new classloader.
        Thread.currentThread().setContextClassLoader(cl);
        // re-eval the policy now that env is set
        try
        {
            Policy policy=Policy.getPolicy();
            if (policy!=null)
                policy.refresh();
        }
        catch (Exception e)
        {
            e.printStackTrace();
        }
        try
        {
            for (int i=0; i<args.length; i++)
            {
                if (args[i]==null)
                    continue;
                _xml.add(args[i]);
            }
            args=(String[])_xml.toArray(args);
            //check for override of start class
            String mainClass=System.getProperty("jetty.server");
            if (mainClass!=null)
                _classname=mainClass;
            mainClass=System.getProperty("main.class");
            if (mainClass!=null)
                _classname=mainClass;
            if (_debug)
                System.err.println("main.class="+_classname);
            invokeMain(cl,_classname,args);
        }
        catch (Exception e)
        {
            e.printStackTrace();
        }
    }

    /**
     * Stop a running jetty instance.
     */
    public void stop()
    {
        int _port=Integer.getInteger("STOP.PORT",-1).intValue();
        String _key=System.getProperty("STOP.KEY",null);

        try
        {
            if (_port<=0)
                System.err.println("STOP.PORT system property must be specified");
            if (_key==null)
            {
                _key="";
                System.err.println("STOP.KEY system property must be specified");
                System.err.println("Using empty key");
            }

            Socket s=new Socket(InetAddress.getByName("127.0.0.1"),_port);
            OutputStream out=s.getOutputStream();
            out.write((_key+"\r\nstop\r\n").getBytes());
            out.flush();
            s.close();
        }
        catch (ConnectException e)
        {
            System.err.println("ERROR: Not running!");
        }
        catch (Exception e)
        {
            e.printStackTrace();
        }
    }

    private void addJars(File dir, Hashtable table, boolean recurse) throws IOException
    {
        File[] entries=dir.listFiles();

        for (int i=0; entries!=null&&i<entries.length; i++)
        {
            File entry=entries[i];

            if (entry.isDirectory()&&recurse)
                addJars(entry,table,recurse);
            else
            {
                String name=entry.getName().toLowerCase();
                if (name.endsWith(".jar")||name.endsWith(".zip"))
                {
                    String jar=entry.getCanonicalPath();
                    if (!table.containsKey(jar))
                    {
                        table.put(jar,jar);
                        boolean added=_classpath.addComponent(jar);
                        if (_debug)
                            System.err.println((added?"  CLASSPATH+=":"  !")+jar);
                    }
                }
            }
        }
    }
}