Java tutorial
/* * ==================================================================== * 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 * <http://www.apache.org/>. * */ package org.apache.http.impl.nio.conn; import java.nio.charset.Charset; import java.nio.charset.CharsetDecoder; import java.nio.charset.CharsetEncoder; import java.nio.charset.CodingErrorAction; import java.util.concurrent.atomic.AtomicLong; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import org.apache.http.HttpRequest; import org.apache.http.HttpResponse; import org.apache.http.config.ConnectionConfig; import org.apache.http.impl.nio.codecs.DefaultHttpRequestWriterFactory; import org.apache.http.impl.nio.codecs.DefaultHttpResponseParserFactory; import org.apache.http.nio.NHttpMessageParserFactory; import org.apache.http.nio.NHttpMessageWriterFactory; import org.apache.http.nio.conn.ManagedNHttpClientConnection; import org.apache.http.nio.conn.NHttpConnectionFactory; import org.apache.http.nio.reactor.IOEventDispatch; import org.apache.http.nio.reactor.IOSession; import org.apache.http.nio.util.ByteBufferAllocator; import org.apache.http.nio.util.HeapByteBufferAllocator; /** * Default factory for {@link ManagedNHttpClientConnection} instances. * * @since 4.0 */ public class ManagedNHttpClientConnectionFactory implements NHttpConnectionFactory<ManagedNHttpClientConnection> { private final Log headerlog = LogFactory.getLog("org.apache.http.headers"); private final Log wirelog = LogFactory.getLog("org.apache.http.wire"); private final Log log = LogFactory.getLog(ManagedNHttpClientConnectionImpl.class); private static final AtomicLong COUNTER = new AtomicLong(); public static final ManagedNHttpClientConnectionFactory INSTANCE = new ManagedNHttpClientConnectionFactory(); private final ByteBufferAllocator allocator; private final NHttpMessageWriterFactory<HttpRequest> requestWriterFactory; private final NHttpMessageParserFactory<HttpResponse> responseParserFactory; public ManagedNHttpClientConnectionFactory(final NHttpMessageWriterFactory<HttpRequest> requestWriterFactory, final NHttpMessageParserFactory<HttpResponse> responseParserFactory, final ByteBufferAllocator allocator) { super(); this.requestWriterFactory = requestWriterFactory != null ? requestWriterFactory : DefaultHttpRequestWriterFactory.INSTANCE; this.responseParserFactory = responseParserFactory != null ? responseParserFactory : DefaultHttpResponseParserFactory.INSTANCE; this.allocator = allocator != null ? allocator : HeapByteBufferAllocator.INSTANCE; } public ManagedNHttpClientConnectionFactory() { this(null, null, null); } @Override public ManagedNHttpClientConnection create(final IOSession iosession, final ConnectionConfig config) { final String id = "http-outgoing-" + Long.toString(COUNTER.getAndIncrement()); CharsetDecoder chardecoder = null; CharsetEncoder charencoder = null; final Charset charset = config.getCharset(); final CodingErrorAction malformedInputAction = config.getMalformedInputAction() != null ? config.getMalformedInputAction() : CodingErrorAction.REPORT; final CodingErrorAction unmappableInputAction = config.getUnmappableInputAction() != null ? config.getUnmappableInputAction() : CodingErrorAction.REPORT; if (charset != null) { chardecoder = charset.newDecoder(); chardecoder.onMalformedInput(malformedInputAction); chardecoder.onUnmappableCharacter(unmappableInputAction); charencoder = charset.newEncoder(); charencoder.onMalformedInput(malformedInputAction); charencoder.onUnmappableCharacter(unmappableInputAction); } final ManagedNHttpClientConnection conn = new ManagedNHttpClientConnectionImpl(id, this.log, this.headerlog, this.wirelog, iosession, config.getBufferSize(), config.getFragmentSizeHint(), this.allocator, chardecoder, charencoder, config.getMessageConstraints(), null, null, this.requestWriterFactory, this.responseParserFactory); iosession.setAttribute(IOEventDispatch.CONNECTION_KEY, conn); return conn; } }