org.apache.http.impl.nio.DefaultClientIOEventDispatch Maven / Gradle / Ivy
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/*
* ====================================================================
* 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.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
* .
*
*/
package org.apache.http.impl.nio;
import java.io.IOException;
import org.apache.http.HttpResponseFactory;
import org.apache.http.impl.DefaultHttpResponseFactory;
import org.apache.http.impl.nio.reactor.AbstractIODispatch;
import org.apache.http.nio.NHttpClientHandler;
import org.apache.http.nio.NHttpClientIOTarget;
import org.apache.http.nio.reactor.IOSession;
import org.apache.http.nio.util.ByteBufferAllocator;
import org.apache.http.nio.util.HeapByteBufferAllocator;
import org.apache.http.params.HttpConnectionParams;
import org.apache.http.params.HttpParams;
import org.apache.http.util.Args;
/**
* Default implementation of {@link org.apache.http.nio.reactor.IOEventDispatch}
* interface for plain (unencrypted) client-side HTTP connections.
*
* @since 4.0
*
* @deprecated (4.2) use {@link DefaultHttpClientIODispatch}
*/
@Deprecated
public class DefaultClientIOEventDispatch extends AbstractIODispatch {
protected final NHttpClientHandler handler;
protected final ByteBufferAllocator allocator;
protected final HttpParams params;
/**
* Creates a new instance of this class to be used for dispatching I/O event
* notifications to the given protocol handler.
*
* @param handler the client protocol handler.
* @param params HTTP parameters.
*/
public DefaultClientIOEventDispatch(
final NHttpClientHandler handler,
final HttpParams params) {
super();
Args.notNull(handler, "HTTP client handler");
Args.notNull(params, "HTTP parameters");
this.allocator = createByteBufferAllocator();
this.handler = handler;
this.params = params;
}
/**
* Creates an instance of {@link HeapByteBufferAllocator} to be used
* by HTTP connections for allocating {@link java.nio.ByteBuffer} objects.
*
* This method can be overridden in a super class in order to provide
* a different implementation of the {@link ByteBufferAllocator} interface.
*
* @return byte buffer allocator.
*/
protected ByteBufferAllocator createByteBufferAllocator() {
return HeapByteBufferAllocator.INSTANCE;
}
/**
* Creates an instance of {@link DefaultHttpResponseFactory} to be used
* by HTTP connections for creating {@link org.apache.http.HttpResponse}
* objects.
*
* This method can be overridden in a super class in order to provide
* a different implementation of the {@link HttpResponseFactory} interface.
*
* @return HTTP response factory.
*/
protected HttpResponseFactory createHttpResponseFactory() {
return DefaultHttpResponseFactory.INSTANCE;
}
/**
* Creates an instance of {@link DefaultNHttpClientConnection} based on the
* given {@link IOSession}.
*
* This method can be overridden in a super class in order to provide
* a different implementation of the {@link NHttpClientIOTarget} interface.
*
* @param session the underlying I/O session.
*
* @return newly created HTTP connection.
*/
@Override
protected NHttpClientIOTarget createConnection(final IOSession session) {
return new DefaultNHttpClientConnection(
session,
createHttpResponseFactory(),
this.allocator,
this.params);
}
@Override
protected void onConnected(final NHttpClientIOTarget conn) {
final int timeout = HttpConnectionParams.getSoTimeout(this.params);
conn.setSocketTimeout(timeout);
final Object attachment = conn.getContext().getAttribute(IOSession.ATTACHMENT_KEY);
this.handler.connected(conn, attachment);
}
@Override
protected void onClosed(final NHttpClientIOTarget conn) {
this.handler.closed(conn);
}
@Override
protected void onException(final NHttpClientIOTarget conn, final IOException ex) {
this.handler.exception(conn, ex);
}
@Override
protected void onInputReady(final NHttpClientIOTarget conn) {
conn.consumeInput(this.handler);
}
@Override
protected void onOutputReady(final NHttpClientIOTarget conn) {
conn.produceOutput(this.handler);
}
@Override
protected void onTimeout(final NHttpClientIOTarget conn) {
this.handler.timeout(conn);
}
}