/*
* 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.axis2.transport.tcp;
import org.apache.axis2.AxisFault;
import org.apache.axis2.description.OutInAxisOperation;
import org.apache.axis2.engine.AxisEngine;
import org.apache.axis2.context.MessageContext;
import org.apache.axis2.transport.OutTransportInfo;
import org.apache.axis2.transport.TransportUtils;
import org.apache.axis2.transport.MessageFormatter;
import org.apache.axis2.transport.base.AbstractTransportSender;
import org.apache.axis2.transport.base.BaseUtils;
import org.apache.axiom.soap.SOAPEnvelope;
import org.apache.axiom.om.OMOutputFormat;
import org.apache.axis2.util.MessageProcessorSelector;
import java.io.IOException;
import java.io.OutputStream;
import java.net.InetSocketAddress;
import java.net.Socket;
import java.net.SocketAddress;
import java.net.URI;
import java.net.URISyntaxException;
import java.util.Map;
import java.util.HashMap;
public class TCPTransportSender extends AbstractTransportSender {
public void sendMessage(MessageContext msgContext, String targetEPR,
OutTransportInfo outTransportInfo) throws AxisFault {
if (targetEPR != null) {
Map<String,String> params = getURLParameters(targetEPR);
int timeout = -1;
if (params.containsKey("timeout")) {
timeout = Integer.parseInt(params.get("timeout"));
}
Socket socket = openTCPConnection(targetEPR, timeout);
msgContext.setProperty(TCPConstants.TCP_OUTPUT_SOCKET, socket);
String contentType = params.get("contentType");
if (contentType == null) {
contentType = TCPConstants.TCP_DEFAULT_CONTENT_TYPE;
}
try {
writeOut(msgContext, socket, contentType);
if (!msgContext.getOptions().isUseSeparateListener() && !msgContext.isServerSide()){
waitForReply(msgContext, socket, contentType);
}
} catch (IOException e) {
handleException("Error while sending a TCP request", e);
}
} else if (outTransportInfo != null && (outTransportInfo instanceof TCPOutTransportInfo)) {
TCPOutTransportInfo outInfo = (TCPOutTransportInfo) outTransportInfo;
try {
writeOut(msgContext, outInfo.getSocket(), outInfo.getContentType());
} catch (IOException e) {
handleException("Error while sending a TCP response", e);
} finally {
closeConnection(outInfo.getSocket());
}
}
}
private void writeOut(MessageContext msgContext, Socket socket,
String contentType) throws IOException {
MessageFormatter messageFormatter = MessageProcessorSelector.getMessageFormatter(msgContext);
OMOutputFormat format = BaseUtils.getOMOutputFormat(msgContext);
format.setContentType(contentType);
byte[] payload = messageFormatter.getBytes(msgContext, format);
OutputStream out = socket.getOutputStream();
out.write(payload);
out.flush();
}
@Override
public void cleanup(MessageContext msgContext) throws AxisFault {
Object socketObj = msgContext.getProperty(TCPConstants.TCP_OUTPUT_SOCKET);
if (socketObj != null) {
closeConnection((Socket) socketObj);
}
}
private void waitForReply(MessageContext msgContext, Socket socket,
String contentType) throws AxisFault {
if (!(msgContext.getAxisOperation() instanceof OutInAxisOperation) &&
msgContext.getProperty(org.apache.axis2.Constants.PIGGYBACK_MESSAGE) == null) {
return;
}
try {
MessageContext responseMsgCtx = createResponseMessageContext(msgContext);
SOAPEnvelope envelope = TransportUtils.createSOAPMessage(msgContext,
socket.getInputStream(), contentType);
responseMsgCtx.setEnvelope(envelope);
AxisEngine.receive(responseMsgCtx);
} catch (Exception e) {
handleException("Error while processing response", e);
}
}
private Map<String,String> getURLParameters(String url) throws AxisFault {
try {
Map<String,String> params = new HashMap<String,String>();
URI tcpUrl = new URI(url);
String query = tcpUrl.getQuery();
if (query != null) {
String[] paramStrings = query.split("&");
for (String p : paramStrings) {
int index = p.indexOf('=');
params.put(p.substring(0, index), p.substring(index+1));
}
}
return params;
} catch (URISyntaxException e) {
handleException("Malformed tcp url", e);
}
return null;
}
private Socket openTCPConnection(String url, int timeout) throws AxisFault {
try {
URI tcpUrl = new URI(url);
if (!tcpUrl.getScheme().equals("tcp")) {
throw new Exception("Invalid protocol prefix : " + tcpUrl.getScheme());
}
SocketAddress address = new InetSocketAddress(tcpUrl.getHost(), tcpUrl.getPort());
Socket socket = new Socket();
if (timeout != -1) {
socket.setSoTimeout(timeout);
}
socket.connect(address);
return socket;
} catch (Exception e) {
handleException("Error while opening TCP connection to : " + url, e);
}
return null;
}
private void closeConnection(Socket socket) {
try {
socket.close();
} catch (IOException e) {
log.error("Error while closing a TCP socket", e);
}
}
}