/*
* 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 samples.userguide;
import org.apache.axiom.om.OMElement;
import org.apache.axiom.soap.SOAPBody;
import org.apache.axiom.soap.SOAPEnvelope;
import org.apache.axiom.soap.impl.builder.StAXSOAPModelBuilder;
import javax.jms.*;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.xml.namespace.QName;
import javax.xml.stream.XMLInputFactory;
import javax.xml.stream.XMLStreamException;
import java.io.ByteArrayInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.InputStream;
import java.util.Iterator;
import java.util.Properties;
public class AMQPConsumer {
private Connection connection;
private MessageConsumer messageConsumer;
private Session session;
private String inSymbol;
private String inQty;
private String inClOrderID;
private int execID = 1;
private static final String CLASS = "AMQPConsumer";
private static final String PROPERTY_FILE =
"../../repository/conf/sample/resources/fix/direct.properties";
private static final String PROP_FILE_NAME = "propfile";
private static final String LOOKUP_CODE_CON = "directQueue";
private static final String LOOKUP_CODE_REP = "replyQueue";
private static final String CONNECTION_FACTORY = "qpidConnectionfactory";
private static final String FIX_MSG = "message";
private static final String FIX_MSG_BODY = "body";
private static final String FIX_MSG_ID = "id";
private static final String FIX_MSG_SYMBOL = "55";
private static final String FIX_MSG_CLORDID = "11";
private static final String FIX_MSG_ORDQTY = "38";
/**
* Main method to execute the consumer sample.
*/
public static void main(String[] args) {
AMQPConsumer syncConsumer = new AMQPConsumer();
syncConsumer.runTest();
}
/**
* Start the sample by creating and listerning to a defined Queue
*/
private void runTest() {
try {
String fileName = getProperty(PROP_FILE_NAME, PROPERTY_FILE);
// Load JNDI properties from the configuration file
Properties properties = new Properties();
InputStream inStream = new FileInputStream(new File(fileName).getAbsolutePath());
properties.load(inStream);
//Create the initial context
Context ctx = new InitialContext(properties);
// look up destination
Destination destination = (Destination) ctx.lookup(LOOKUP_CODE_CON); // Listerning queue
Destination replyQueue = (Destination) ctx.lookup(LOOKUP_CODE_REP); // Reply queue
// Lookup the connection factory
ConnectionFactory conFac = (ConnectionFactory) ctx.lookup(CONNECTION_FACTORY);
connection = conFac.createConnection();
// As this application is using a MessageConsumer we need to set an ExceptionListener on the connection
// so that errors raised within the JMS client library can be reported to the application
System.out.println(
CLASS +
": Setting an ExceptionListener on the connection as sample uses a MessageConsumer");
connection.setExceptionListener(new ExceptionListener() {
public void onException(JMSException jmse) {
// The connection may have broken invoke reconnect code if available.
// The connection may have broken invoke reconnect code if available.
System.err.println(CLASS +
": The sample received an exception through the ExceptionListener" +
jmse.getMessage());
jmse.printStackTrace();
System.exit(0);
}
});
createSession(conFac, destination); // Call to create the sessions
createRepQueue(conFac,
replyQueue); // Call to create the Reply Queue and close the session
connection.start(); // Start the connection
System.out.println(
CLASS + ": Starting connection so the MessageConsumer can receive messages");
onMessage();
} catch (Exception e) {
//TODO: handle the exception
System.out.println("ERROR : " + e.toString());
e.printStackTrace();
}
}
/**
* @param destination
*/
private void createSession(ConnectionFactory conFac, Destination destination)
throws JMSException {
// Create a session on the connection
// This session is a default choice of non-transacted and uses the auto acknowledge feature of a session.
System.out.println(CLASS + ": Creating a non-transacted, auto-acknowledged session");
session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
// Create a MessageConsumer
System.out.println(CLASS + ": Creating a MessageConsumer");
messageConsumer = session.createConsumer(destination);
}
/**
* Create reply queue
*
* @param replyQueue
* @throws JMSException
*/
private void createRepQueue(ConnectionFactory conFac, Destination replyQueue)
throws JMSException {
MessageProducer messageProducer = session.createProducer(replyQueue);
System.out.println(CLASS + ": Reply queue created");
}
/**
* Not a typical message callback, this method will listern and pole the messages
*/
private void onMessage() throws JMSException, XMLStreamException {
Message message;
boolean end = false;
while (!end) {
message = messageConsumer.receive();
String text;
if (message instanceof TextMessage) {
text = ((TextMessage) message).getText();
} else {
byte[] body = new byte[(int) ((BytesMessage) message).getBodyLength()];
((BytesMessage) message).readBytes(body);
text = new String(body);
}
System.out.println(CLASS + ": Received message: " + text);
if (message.getJMSReplyTo() != null) {
// Send the Execution back to the sendar
parseOrder(text);
sendExecution(message);
}
}
}
/**
* @param payload XML message content came inside the JMS message
* @throws XMLStreamException on error
*/
private void parseOrder(String payload) throws XMLStreamException {
InputStream is = new ByteArrayInputStream(payload.getBytes());
javax.xml.stream.XMLStreamReader parser = XMLInputFactory
.newInstance().createXMLStreamReader(is);
StAXSOAPModelBuilder builder = new StAXSOAPModelBuilder(parser,
null);
SOAPEnvelope envelope = (SOAPEnvelope) builder.getDocumentElement();
// retrieve SOAP body
SOAPBody soapBody = envelope.getBody();
OMElement messageNode = soapBody.getFirstChildWithName(new QName(
FIX_MSG));
Iterator<?> messageElements = (Iterator<?>) messageNode
.getChildElements();
while (messageElements.hasNext()) {
OMElement node = (OMElement) messageElements.next();
if (node.getQName().getLocalPart().equals(FIX_MSG_BODY)) {
Iterator<?> bodyElements = (Iterator<?>) node.getChildElements();
while (bodyElements.hasNext()) {
OMElement bodyNode = (OMElement) bodyElements.next();
String tag = bodyNode
.getAttributeValue(new QName(FIX_MSG_ID));
String value = bodyNode.getText();
if (tag.equals(FIX_MSG_SYMBOL)) {
inSymbol = value;
} else if (tag.equals(FIX_MSG_CLORDID)) {
inClOrderID = value;
} else if (tag.equals(FIX_MSG_ORDQTY)) {
inQty = value;
}
}
}
}
}
/**
* @param message incoming message
* @throws JMSException on error
*/
private void sendExecution(Message message) throws JMSException {
String repValue =
"<m0:message xmlns:m0=\"http://services.samples/xsd/\" inSeession=\"FIX.4.0:EXEC-->SYNAPSE\" count=\"2\">\n"
+ "<m0:header>"
+ "<m0:field m0:id=\"35\"><![CDATA[8]]></m0:field>"
+ "<m0:field m0:id=\"52\"><![CDATA[20080618-08:41:56]]></m0:field>"
+ "</m0:header>"
+ "<m0:body>"
+ "<m0:field m0:id=\"6\"><![CDATA[12.3]]></m0:field>"
+ "<m0:field m0:id=\"11\"><![CDATA["
+ inClOrderID
+ "]]></m0:field>"
+ "<m0:field m0:id=\"14\"><![CDATA["
+ inQty
+ "]]></m0:field>"
+ "<m0:field m0:id=\"17\"><![CDATA["
+ execID
+ "]]></m0:field>"
+ "<m0:field m0:id=\"20\"><![CDATA[0]]></m0:field>"
+ "<m0:field m0:id=\"31\"><![CDATA[12.3]]></m0:field>"
+ "<m0:field m0:id=\"32\"><![CDATA["
+ inQty
+ "]]></m0:field>"
+ "<m0:field m0:id=\"37\"><![CDATA[2]]></m0:field>"
+ "<m0:field m0:id=\"38\"><![CDATA["
+ inQty
+ "]]></m0:field>"
+ "<m0:field m0:id=\"39\"><![CDATA[2]]></m0:field>"
+ "<m0:field m0:id=\"54\"><![CDATA[1]]></m0:field>"
+ "<m0:field m0:id=\"55\"><![CDATA["
+ inSymbol
+ "]]></m0:field>"
+ "<m0:field m0:id=\"150\"><![CDATA[2]]></m0:field>"
+ "<m0:field m0:id=\"151\"><![CDATA[0]]></m0:field>"
+ "</m0:body>"
+ "<m0:trailer>"
+ "</m0:trailer>"
+ "</m0:message>";
execID++;
TextMessage repMessage = session.createTextMessage(repValue);
repMessage.setJMSCorrelationID(message.getJMSMessageID());
MessageProducer replyProducer = session.createProducer(message.getJMSReplyTo());
replyProducer.send(repMessage);
System.out.println("Execution sent: " + repMessage.getText());
}
/**
* Get the system properties
*
* @param name property name
* @param def default value
* @return property value
*/
private static String getProperty(String name, String def) {
String result = System.getProperty(name);
if (result == null || result.length() == 0) {
result = def;
}
return result;
}
}