Importing upstream Jetty jetty-9.2.1.v20140609

[gigi.git] / lib / jetty / org / eclipse / jetty / server / handler / DebugHandler.java

diff --git a/lib/jetty/org/eclipse/jetty/server/handler/DebugHandler.java b/lib/jetty/org/eclipse/jetty/server/handler/DebugHandler.java
new file mode 100644 (file)
index 0000000..0ed7261
--- /dev/null
+++ b/lib/jetty/org/eclipse/jetty/server/handler/DebugHandler.java
@@ -0,0 +1,184 @@
+//
+//  ========================================================================
+//  Copyright (c) 1995-2014 Mort Bay Consulting Pty. Ltd.
+//  ------------------------------------------------------------------------
+//  All rights reserved. This program and the accompanying materials
+//  are made available under the terms of the Eclipse Public License v1.0
+//  and Apache License v2.0 which accompanies this distribution.
+//
+//      The Eclipse Public License is available at
+//      http://www.eclipse.org/legal/epl-v10.html
+//
+//      The Apache License v2.0 is available at
+//      http://www.opensource.org/licenses/apache2.0.php
+//
+//  You may elect to redistribute this code under either of these licenses.
+//  ========================================================================
+//
+
+package org.eclipse.jetty.server.handler;
+
+import java.io.IOException;
+import java.io.OutputStream;
+import java.io.PrintStream;
+import java.util.Locale;
+
+import javax.servlet.ServletException;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+import org.eclipse.jetty.io.Connection;
+import org.eclipse.jetty.server.AbstractConnector;
+import org.eclipse.jetty.server.Connector;
+import org.eclipse.jetty.server.Request;
+import org.eclipse.jetty.server.Response;
+import org.eclipse.jetty.util.DateCache;
+import org.eclipse.jetty.util.RolloverFileOutputStream;
+
+
+/**
+ * Debug Handler.
+ * A lightweight debug handler that can be used in production code.
+ * Details of the request and response are written to an output stream
+ * and the current thread name is updated with information that will link
+ * to the details in that output.
+ */
+public class DebugHandler extends HandlerWrapper implements Connection.Listener
+{
+    private DateCache _date=new DateCache("HH:mm:ss", Locale.US);
+    private OutputStream _out;
+    private PrintStream _print;
+
+    /* ------------------------------------------------------------ */
+    /*
+     * @see org.eclipse.jetty.server.Handler#handle(java.lang.String, javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse, int)
+     */
+    @Override
+    public void handle(String target, Request baseRequest, HttpServletRequest request, HttpServletResponse response)
+            throws IOException, ServletException
+    {
+        final Response base_response = baseRequest.getResponse();
+        final Thread thread=Thread.currentThread();
+        final String old_name=thread.getName();
+
+        boolean suspend=false;
+        boolean retry=false;
+        String name=(String)request.getAttribute("org.eclipse.jetty.thread.name");
+        if (name==null)
+            name=old_name+":"+baseRequest.getScheme()+"://"+baseRequest.getLocalAddr()+":"+baseRequest.getLocalPort()+baseRequest.getUri();
+        else
+            retry=true;
+
+        String ex=null;
+        try
+        {
+            if (retry)
+                print(name,"RESUME");
+            else
+                print(name,"REQUEST "+baseRequest.getRemoteAddr()+" "+request.getMethod()+" "+baseRequest.getHeader("Cookie")+"; "+baseRequest.getHeader("User-Agent"));
+            thread.setName(name);
+
+            getHandler().handle(target,baseRequest,request,response);
+        }
+        catch(IOException ioe)
+        {
+            ex=ioe.toString();
+            throw ioe;
+        }
+        catch(ServletException se)
+        {
+            ex=se.toString()+":"+se.getCause();
+            throw se;
+        }
+        catch(RuntimeException rte)
+        {
+            ex=rte.toString();
+            throw rte;
+        }
+        catch(Error e)
+        {
+            ex=e.toString();
+            throw e;
+        }
+        finally
+        {
+            thread.setName(old_name);
+            suspend=baseRequest.getHttpChannelState().isSuspended();
+            if (suspend)
+            {
+                request.setAttribute("org.eclipse.jetty.thread.name",name);
+                print(name,"SUSPEND");
+            }
+            else
+                print(name,"RESPONSE "+base_response.getStatus()+(ex==null?"":("/"+ex))+" "+base_response.getContentType());
+        }
+    }
+    
+    private void print(String name,String message)
+    {
+        long now=System.currentTimeMillis();
+        final String d=_date.formatNow(now);
+        final int ms=(int)(now%1000);
+
+        _print.println(d+(ms>99?".":(ms>9?".0":".00"))+ms+":"+name+" "+message);
+    }
+
+    /* (non-Javadoc)
+     * @see org.eclipse.jetty.server.handler.HandlerWrapper#doStart()
+     */
+    @Override
+    protected void doStart() throws Exception
+    {
+        if (_out==null)
+            _out=new RolloverFileOutputStream("./logs/yyyy_mm_dd.debug.log",true);
+        _print=new PrintStream(_out);
+        
+        for (Connector connector : getServer().getConnectors())
+            if (connector instanceof AbstractConnector)
+                ((AbstractConnector)connector).addBean(this,false);
+            
+        super.doStart();
+    }
+
+    /* (non-Javadoc)
+     * @see org.eclipse.jetty.server.handler.HandlerWrapper#doStop()
+     */
+    @Override
+    protected void doStop() throws Exception
+    {
+        super.doStop();
+        _print.close();
+        for (Connector connector : getServer().getConnectors())
+            if (connector instanceof AbstractConnector)
+                ((AbstractConnector)connector).removeBean(this);
+    }
+
+    /**
+     * @return the out
+     */
+    public OutputStream getOutputStream()
+    {
+        return _out;
+    }
+
+    /**
+     * @param out the out to set
+     */
+    public void setOutputStream(OutputStream out)
+    {
+        _out = out;
+    }
+    
+    @Override
+    public void onOpened(Connection connection)
+    {
+        print(Thread.currentThread().getName(),"OPENED "+connection.toString());
+    }
+
+    @Override
+    public void onClosed(Connection connection)
+    {
+        print(Thread.currentThread().getName(),"CLOSED "+connection.toString());
+    }
+
+}