| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| * |
| */ |
| package org.apache.asyncweb.server.context; |
| |
| |
| import java.net.InetSocketAddress; |
| import java.util.ArrayList; |
| |
| import org.apache.asyncweb.common.*; |
| import org.apache.asyncweb.common.HttpResponse; |
| import org.apache.asyncweb.common.HttpResponseStatus; |
| import org.apache.asyncweb.common.MutableHttpResponse; |
| import org.apache.asyncweb.server.HttpServiceContext; |
| import org.apache.asyncweb.server.HttpSession; |
| import org.apache.asyncweb.server.ServiceContainer; |
| import org.apache.asyncweb.server.HttpClientListener; |
| |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| |
| /** |
| * A default implementation of {@link HttpServiceContext}. |
| * |
| * @author The Apache MINA Project (dev@mina.apache.org) |
| */ |
| public abstract class AbstractHttpServiceContext implements HttpServiceContext |
| { |
| private final Logger log = LoggerFactory.getLogger( AbstractHttpServiceContext.class ); |
| |
| private final InetSocketAddress remoteAddress; |
| |
| private final InetSocketAddress localAddress; |
| |
| private final HttpRequest request; |
| |
| private HttpResponse committedResponse; |
| |
| private HttpSession session; |
| |
| private boolean createdSession; |
| |
| private final ServiceContainer container; |
| |
| private final ArrayList<HttpClientListener> listeners = new ArrayList<HttpClientListener>( 2 ); |
| |
| |
| |
| public AbstractHttpServiceContext( InetSocketAddress localAddress, InetSocketAddress remoteAddress, |
| HttpRequest request, ServiceContainer container ) |
| { |
| if ( remoteAddress == null ) |
| { |
| throw new NullPointerException( "remoteAddress" ); |
| } |
| |
| if ( localAddress == null ) |
| { |
| throw new NullPointerException( "localAddress" ); |
| } |
| |
| if ( request == null ) |
| { |
| throw new NullPointerException( "request" ); |
| } |
| |
| if ( container == null ) |
| { |
| throw new NullPointerException( "container" ); |
| } |
| |
| this.remoteAddress = remoteAddress; |
| this.localAddress = localAddress; |
| this.request = request; |
| this.container = container; |
| this.session = container.getSessionAccessor().getSession( this, false ); |
| } |
| |
| |
| public synchronized boolean isResponseCommitted() |
| { |
| return committedResponse != null; |
| } |
| |
| |
| /** |
| * Commits a <code>HttpResponse</code> to this <code>Request</code>. |
| * |
| * @param response The response to commit |
| * @return <code>true</code> iff the response was committed |
| */ |
| public boolean commitResponse( HttpResponse response ) |
| { |
| synchronized ( this ) |
| { |
| if ( isResponseCommitted() ) |
| { |
| log.info( "Request already comitted to a response. Disposing response" ); |
| return false; |
| } |
| |
| committedResponse = response; |
| } |
| |
| // Add the session identifier if the session was newly created. |
| if ( createdSession ) |
| { |
| container.getSessionAccessor().addSessionIdentifier( this, ( MutableHttpResponse ) response ); |
| } |
| |
| // Only parsed requests can be formatted. |
| if ( getRequest().getMethod() != null ) |
| { |
| container.getErrorResponseFormatter().formatResponse( getRequest(), ( MutableHttpResponse ) response ); |
| } |
| |
| if ( container.isSendServerHeader() ) |
| { |
| ( ( MutableHttpResponse ) response ).setHeader( HttpHeaderConstants.KEY_SERVER, "AsyncWeb" ); |
| } |
| |
| // Normalize the response. |
| ( ( MutableHttpResponse ) response ).normalize( getRequest() ); |
| |
| // Override connection header if needed. |
| if ( ! container.getKeepAliveStrategy().keepAlive( this, response ) ) |
| { |
| ( ( MutableHttpResponse ) response ).setHeader( HttpHeaderConstants.KEY_CONNECTION, |
| HttpHeaderConstants.VALUE_CLOSE ); |
| } |
| |
| boolean requiresClosure = ! HttpHeaderConstants.VALUE_KEEP_ALIVE |
| .equalsIgnoreCase( response.getHeader(HttpHeaderConstants.KEY_CONNECTION ) ); |
| |
| if ( requiresClosure && log.isDebugEnabled() ) |
| { |
| log.debug("Response status: " + response.getStatus()); |
| log.debug("Keep-alive strategy requires closure of " |
| + getRemoteAddress()); |
| } |
| |
| if ( log.isDebugEnabled() ) |
| { |
| log.debug( "Committing a response:" ); |
| log.debug( "Status: " + response.getStatus() + ' ' + response.getStatusReasonPhrase() ); |
| log.debug( "Headers: " + response.getHeaders() ); |
| } |
| |
| doWrite( requiresClosure ); |
| return true; |
| } |
| |
| |
| public boolean commitResponse( HttpResponseStatus status ) |
| { |
| MutableHttpResponse response = new DefaultHttpResponse(); |
| response.setStatus( status ); |
| return commitResponse( response ); |
| } |
| |
| |
| public synchronized HttpResponse getCommittedResponse() |
| { |
| return committedResponse; |
| } |
| |
| |
| public InetSocketAddress getRemoteAddress() |
| { |
| return remoteAddress; |
| } |
| |
| public InetSocketAddress getLocalAddress() |
| { |
| return localAddress; |
| } |
| |
| |
| public HttpRequest getRequest() |
| { |
| return request; |
| } |
| |
| |
| public HttpSession getSession() |
| { |
| return getSession( true ); |
| } |
| |
| |
| public synchronized HttpSession getSession( boolean create ) |
| { |
| if ( session != null && ! session.isValid() ) |
| { |
| session = null; |
| } |
| |
| if ( session == null ) |
| { |
| session = container.getSessionAccessor().getSession( this, create ); |
| if ( create ) |
| { |
| createdSession = true; |
| } |
| } |
| |
| return session; |
| } |
| |
| |
| protected void fireClientDisconnected() |
| { |
| ArrayList<HttpClientListener> cloned; |
| synchronized( listeners ) |
| { |
| //noinspection unchecked |
| cloned = ( ArrayList<HttpClientListener> ) listeners.clone(); |
| } |
| |
| for ( HttpClientListener listener : cloned ) |
| { |
| listener.clientDisconnected( this ); |
| } |
| } |
| |
| |
| protected void fireClientIdle( long idleTime, int idleCount ) |
| { |
| ArrayList<HttpClientListener> cloned; |
| synchronized( listeners ) |
| { |
| //noinspection unchecked |
| cloned = ( ArrayList<HttpClientListener> ) listeners.clone(); |
| } |
| |
| for ( HttpClientListener listener : cloned ) |
| { |
| listener.clientIdle( this, idleTime, idleCount ); |
| } |
| } |
| |
| |
| public boolean addClientListener( HttpClientListener listener ) |
| { |
| return listeners.add( listener ); |
| } |
| |
| |
| public boolean removeClientListener( HttpClientListener listener ) |
| { |
| return listeners != null && listeners.remove( listener ); |
| } |
| |
| |
| protected abstract void doWrite( boolean requiresClosure ); |
| } |