Importing upstream Jetty jetty-9.2.1.v20140609

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

diff --git a/lib/jetty/org/eclipse/jetty/server/handler/RequestLogHandler.java b/lib/jetty/org/eclipse/jetty/server/handler/RequestLogHandler.java
new file mode 100644 (file)
index 0000000..706b988
--- /dev/null
+++ b/lib/jetty/org/eclipse/jetty/server/handler/RequestLogHandler.java
@@ -0,0 +1,153 @@
+//
+//  ========================================================================
+//  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 javax.servlet.AsyncEvent;
+import javax.servlet.AsyncListener;
+import javax.servlet.DispatcherType;
+import javax.servlet.ServletException;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+import org.eclipse.jetty.server.AsyncContextState;
+import org.eclipse.jetty.server.Request;
+import org.eclipse.jetty.server.RequestLog;
+import org.eclipse.jetty.server.Response;
+import org.eclipse.jetty.util.component.AbstractLifeCycle;
+import org.eclipse.jetty.util.log.Log;
+import org.eclipse.jetty.util.log.Logger;
+
+
+
+/**
+ * RequestLogHandler.
+ * This handler can be used to wrap an individual context for context logging.
+ *
+ *
+ * @org.apache.xbean.XBean
+ */
+public class RequestLogHandler extends HandlerWrapper
+{
+    private static final Logger LOG = Log.getLogger(RequestLogHandler.class);
+    private RequestLog _requestLog;
+    private final AsyncListener _listener = new AsyncListener()
+    {
+        
+        @Override
+        public void onTimeout(AsyncEvent event) throws IOException
+        {
+            
+        }
+        
+        @Override
+        public void onStartAsync(AsyncEvent event) throws IOException
+        {
+            event.getAsyncContext().addListener(this);
+        }
+        
+        @Override
+        public void onError(AsyncEvent event) throws IOException
+        {
+            
+        }
+        
+        @Override
+        public void onComplete(AsyncEvent event) throws IOException
+        {
+            AsyncContextState context = (AsyncContextState)event.getAsyncContext();
+            Request request=context.getHttpChannelState().getBaseRequest();
+            Response response=request.getResponse();
+            _requestLog.log(request,response);
+        }
+    };
+
+    /* ------------------------------------------------------------ */
+    /*
+     * @see org.eclipse.jetty.server.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
+    {
+        try
+        {
+            super.handle(target, baseRequest, request, response);
+        }
+        finally
+        {
+            if (_requestLog != null && baseRequest.getDispatcherType().equals(DispatcherType.REQUEST))
+            {
+                if (baseRequest.getHttpChannelState().isAsync())
+                {
+                    if (baseRequest.getHttpChannelState().isInitial())
+                        baseRequest.getAsyncContext().addListener(_listener);
+                }
+                else
+                    _requestLog.log(baseRequest, (Response)response);
+            }
+        }
+    }
+
+    /* ------------------------------------------------------------ */
+    public void setRequestLog(RequestLog requestLog)
+    {
+        updateBean(_requestLog,requestLog);
+        _requestLog=requestLog;
+    }
+
+    /* ------------------------------------------------------------ */
+    public RequestLog getRequestLog()
+    {
+        return _requestLog;
+    }
+    
+    /* ------------------------------------------------------------ */
+    @Override
+    protected void doStart() throws Exception
+    {
+        if (_requestLog==null)
+        {
+            LOG.warn("!RequestLog");
+            _requestLog=new NullRequestLog();
+        }
+        super.doStart();
+    }
+    
+    /* ------------------------------------------------------------ */
+    @Override
+    protected void doStop() throws Exception
+    {
+        super.doStop();
+        if (_requestLog instanceof NullRequestLog)
+            _requestLog=null;
+    }
+
+    /* ------------------------------------------------------------ */
+    /* ------------------------------------------------------------ */
+    /* ------------------------------------------------------------ */
+    private static class NullRequestLog extends AbstractLifeCycle implements RequestLog
+    {
+        @Override
+        public void log(Request request, Response response)
+        {            
+        }
+    }
+}