| /* |
| * 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.synapse.transport.passthru; |
| |
| import org.apache.http.*; |
| import org.apache.http.entity.BasicHttpEntity; |
| import org.apache.http.nio.ContentDecoder; |
| import org.apache.http.nio.NHttpClientConnection; |
| import org.apache.synapse.transport.passthru.config.TargetConfiguration; |
| import org.apache.synapse.transport.passthru.util.PassThroughTransportUtils; |
| |
| import java.io.IOException; |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| /** |
| * This class represents a response coming from the target server. |
| */ |
| public class TargetResponse { |
| |
| /** To pipe the incoming data through */ |
| private Pipe pipe = null; |
| |
| /** Headers of the response */ |
| private Map<String, String> headers = new HashMap<String, String>(); |
| |
| /** The status of the response */ |
| private int status = HttpStatus.SC_OK; |
| |
| /** Http status line */ |
| private String statusLine = "OK"; |
| |
| /** The Http response */ |
| private HttpResponse response = null; |
| |
| /** Configuration of the sender */ |
| private TargetConfiguration targetConfiguration; |
| |
| /** Protocol version */ |
| private ProtocolVersion version = HttpVersion.HTTP_1_1; |
| |
| /** The connection */ |
| private NHttpClientConnection connection; |
| |
| /** Whether this response has a body */ |
| private boolean expectResponseBody = true; |
| |
| public TargetResponse(TargetConfiguration targetConfiguration, |
| HttpResponse response, |
| NHttpClientConnection conn, |
| boolean expectResponseBody) { |
| |
| this.targetConfiguration = targetConfiguration; |
| this.response = response; |
| this.connection = conn; |
| this.version = response.getProtocolVersion(); |
| this.status = response.getStatusLine().getStatusCode(); |
| this.statusLine = response.getStatusLine().getReasonPhrase(); |
| |
| Header[] headers = response.getAllHeaders(); |
| if (headers != null) { |
| for (Header header : headers) { |
| this.headers.put(header.getName(), header.getValue()); |
| } |
| } |
| |
| this.expectResponseBody = expectResponseBody; |
| } |
| |
| /** |
| * Starts the response |
| * @param conn the client connection |
| */ |
| public void start(NHttpClientConnection conn) { |
| TargetContext.updateState(conn, ProtocolState.RESPONSE_HEAD); |
| |
| if (expectResponseBody) { |
| pipe = new Pipe(conn, targetConfiguration.getBufferFactory().getBuffer(), |
| "target", targetConfiguration); |
| TargetContext.get(conn).setReader(pipe); |
| BasicHttpEntity entity = new BasicHttpEntity(); |
| if (response.getStatusLine().getProtocolVersion().greaterEquals(HttpVersion.HTTP_1_1)) { |
| entity.setChunked(true); |
| } |
| response.setEntity(entity); |
| } else { |
| PassThroughTransportUtils.finishUsingTargetConnection(response, conn, |
| targetConfiguration.getConnections()); |
| } |
| } |
| |
| /** |
| * Read the data from the wire and read in to the pipe so that other end of |
| * the pipe can write. |
| * @param conn the target connection |
| * @param decoder content decoder |
| * @throws java.io.IOException if an error occurs |
| * @return number of bites read |
| */ |
| public int read(NHttpClientConnection conn, ContentDecoder decoder) throws IOException { |
| |
| int bytes=0; |
| if (pipe != null) { |
| bytes = pipe.produce(decoder); |
| } |
| |
| // Update connection state |
| if (decoder.isCompleted()) { |
| TargetContext.updateState(conn, ProtocolState.RESPONSE_DONE); |
| targetConfiguration.getMetrics().notifyReceivedMessageSize( |
| conn.getMetrics().getReceivedBytesCount()); |
| PassThroughTransportUtils.finishUsingTargetConnection(response, conn, |
| targetConfiguration.getConnections()); |
| } |
| return bytes; |
| } |
| |
| public String getHeader(String name) { |
| return headers.get(name); |
| } |
| |
| public Map<String, String> getHeaders() { |
| return headers; |
| } |
| |
| public Pipe getPipe() { |
| return pipe; |
| } |
| |
| public int getStatus() { |
| return status; |
| } |
| |
| public String getStatusLine() { |
| return statusLine; |
| } |
| |
| public boolean isExpectResponseBody() { |
| return expectResponseBody; |
| } |
| |
| public NHttpClientConnection getConnection() { |
| return connection; |
| } |
| |
| public ProtocolVersion getVersion() { |
| return version; |
| } |
| } |