/*
* ====================================================================
* 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;
import java.io.IOException;
import java.io.OutputStream;
import java.net.Socket;
import java.nio.charset.CharsetDecoder;
import java.nio.charset.CharsetEncoder;
import org.apache.http.HttpEntity;
import org.apache.http.HttpEntityEnclosingRequest;
import org.apache.http.HttpException;
import org.apache.http.HttpRequest;
import org.apache.http.HttpResponse;
import org.apache.http.HttpServerConnection;
import org.apache.http.annotation.NotThreadSafe;
import org.apache.http.config.MessageConstraints;
import org.apache.http.entity.ContentLengthStrategy;
import org.apache.http.impl.entity.DisallowIdentityContentLengthStrategy;
import org.apache.http.impl.io.DefaultHttpRequestParserFactory;
import org.apache.http.impl.io.DefaultHttpResponseWriterFactory;
import org.apache.http.io.HttpMessageParser;
import org.apache.http.io.HttpMessageParserFactory;
import org.apache.http.io.HttpMessageWriter;
import org.apache.http.io.HttpMessageWriterFactory;
import org.apache.http.util.Args;
/**
* Default implementation of {@link HttpServerConnection}.
*
* @since 4.3
*/
@NotThreadSafe
public class DefaultBHttpServerConnection extends BHttpConnectionBase
implements HttpServerConnection {
private final HttpMessageParser<HttpRequest> requestParser;
private final HttpMessageWriter<HttpResponse> responseWriter;
/**
* Creates new instance of DefaultBHttpServerConnection.
*
* @param buffersize buffer size. Must be a positive number.
* @param fragmentSizeHint fragment size hint.
* @param chardecoder decoder to be used for decoding HTTP protocol elements.
* If {@code null} simple type cast will be used for byte to char conversion.
* @param charencoder encoder to be used for encoding HTTP protocol elements.
* If {@code null} simple type cast will be used for char to byte conversion.
* @param constraints Message constraints. If {@code null}
* {@link MessageConstraints#DEFAULT} will be used.
* @param incomingContentStrategy incoming content length strategy. If {@code null}
* {@link DisallowIdentityContentLengthStrategy#INSTANCE} will be used.
* @param outgoingContentStrategy outgoing content length strategy. If {@code null}
* {@link org.apache.http.impl.entity.StrictContentLengthStrategy#INSTANCE} will be used.
* @param requestParserFactory request parser factory. If {@code null}
* {@link DefaultHttpRequestParserFactory#INSTANCE} will be used.
* @param responseWriterFactory response writer factory. If {@code null}
* {@link DefaultHttpResponseWriterFactory#INSTANCE} will be used.
*/
public DefaultBHttpServerConnection(
final int buffersize,
final int fragmentSizeHint,
final CharsetDecoder chardecoder,
final CharsetEncoder charencoder,
final MessageConstraints constraints,
final ContentLengthStrategy incomingContentStrategy,
final ContentLengthStrategy outgoingContentStrategy,
final HttpMessageParserFactory<HttpRequest> requestParserFactory,
final HttpMessageWriterFactory<HttpResponse> responseWriterFactory) {
super(buffersize, fragmentSizeHint, chardecoder, charencoder, constraints,
incomingContentStrategy != null ? incomingContentStrategy :
DisallowIdentityContentLengthStrategy.INSTANCE, outgoingContentStrategy);
this.requestParser = (requestParserFactory != null ? requestParserFactory :
DefaultHttpRequestParserFactory.INSTANCE).create(getSessionInputBuffer(), constraints);
this.responseWriter = (responseWriterFactory != null ? responseWriterFactory :
DefaultHttpResponseWriterFactory.INSTANCE).create(getSessionOutputBuffer());
}
public DefaultBHttpServerConnection(
final int buffersize,
final CharsetDecoder chardecoder,
final CharsetEncoder charencoder,
final MessageConstraints constraints) {
this(buffersize, buffersize, chardecoder, charencoder, constraints, null, null, null, null);
}
public DefaultBHttpServerConnection(final int buffersize) {
this(buffersize, buffersize, null, null, null, null, null, null, null);
}
protected void onRequestReceived(final HttpRequest request) {
}
protected void onResponseSubmitted(final HttpResponse response) {
}
@Override
public void bind(final Socket socket) throws IOException {
super.bind(socket);
}
@Override
public HttpRequest receiveRequestHeader()
throws HttpException, IOException {
ensureOpen();
final HttpRequest request = this.requestParser.parse();
onRequestReceived(request);
incrementRequestCount();
return request;
}
@Override
public void receiveRequestEntity(final HttpEntityEnclosingRequest request)
throws HttpException, IOException {
Args.notNull(request, "HTTP request");
ensureOpen();
final HttpEntity entity = prepareInput(request);
request.setEntity(entity);
}
@Override
public void sendResponseHeader(final HttpResponse response)
throws HttpException, IOException {
Args.notNull(response, "HTTP response");
ensureOpen();
this.responseWriter.write(response);
onResponseSubmitted(response);
if (response.getStatusLine().getStatusCode() >= 200) {
incrementResponseCount();
}
}
@Override
public void sendResponseEntity(final HttpResponse response)
throws HttpException, IOException {
Args.notNull(response, "HTTP response");
ensureOpen();
final HttpEntity entity = response.getEntity();
if (entity == null) {
return;
}
final OutputStream outstream = prepareOutput(response);
entity.writeTo(outstream);
outstream.close();
}
@Override
public void flush() throws IOException {
ensureOpen();
doFlush();
}
}