/*
* Copyright 2013, The Sporting Exchange Limited
*
* Licensed 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 com.betfair.cougar.transport.jms;
import com.betfair.cougar.core.api.events.Event;
import com.betfair.cougar.core.api.exception.CougarException;
import com.betfair.cougar.core.api.exception.CougarFrameworkException;
import com.betfair.cougar.marshalling.api.databinding.DataBindingFactory;
import com.betfair.cougar.marshalling.api.databinding.Marshaller;
import com.betfair.cougar.transport.api.protocol.events.EventMarshaller;
import com.betfair.cougar.transport.api.protocol.events.EventServiceBindingDescriptor;
import com.betfair.cougar.util.RequestUUIDImpl;
import javax.jms.DeliveryMode;
import javax.jms.JMSException;
import javax.jms.Session;
import javax.jms.TextMessage;
import java.io.ByteArrayOutputStream;
import java.net.InetAddress;
import java.net.UnknownHostException;
import java.text.SimpleDateFormat;
import java.util.Date;
/**
* This class will convert an Event object into a JSON formatted text message
*/
public class JMSEventMarshaller implements EventMarshaller<TextMessage> {
public static final String DEFAULT_CHARACTER_ENCODING = "utf-8";
public static final int DEFAULT_DELIVERY_MODE = DeliveryMode.PERSISTENT;
public static final long DEFAULT_EXPIRATION_TIME = 0;
public static final int DEFAULT_PRIORITY = 4;
public static final String DEFAULT_ROUTE_TIMESTAMP_DATE_FORMAT = "yyyy/MM/dd HH:mm:ss.SSS";
private String dateFormatPattern = DEFAULT_ROUTE_TIMESTAMP_DATE_FORMAT;
private String characterEncoding = DEFAULT_CHARACTER_ENCODING;
private int deliveryMode = DEFAULT_DELIVERY_MODE;
private long expirationTime = DEFAULT_EXPIRATION_TIME;
private int priority = DEFAULT_PRIORITY;
private DataBindingFactory dataBindingFactory;
public String marshallEventBody(Event event) throws CougarException {
Marshaller marshaller = dataBindingFactory.getMarshaller();
ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
marshaller.marshall(outputStream, event, characterEncoding, false);
return outputStream.toString();
}
public String getHostString(Event event) throws UnknownHostException {
StringBuilder sb = new StringBuilder();
sb.append(InetAddress.getLocalHost().getCanonicalHostName());
sb.append(JMSPropertyConstants.TIMESTAMP_SEPARATOR);
sb.append(new SimpleDateFormat(dateFormatPattern).format(new Date()));
if (event.getCougarMessageRouteString() != null) {
sb.append(JMSPropertyConstants.COUGAR_ROUTING_SEPARATOR);
sb.append(event.getCougarMessageRouteString());
}
return sb.toString();
}
@Override
public TextMessage marshallEvent(EventServiceBindingDescriptor bindingDescriptor, Event event, Object session) throws CougarException {
try {
TextMessage message = ((Session)session).createTextMessage(marshallEventBody(event));
//Sets the routing string
message.setStringProperty(JMSPropertyConstants.MESSAGE_ROUTING_FIELD_NAME, getHostString(event));
//Sets the message id guid. If there isn't one, make one up
String messageId = event.getMessageId();
if (messageId == null) {
messageId = new RequestUUIDImpl().toString();
}
message.setStringProperty(JMSPropertyConstants.MESSAGE_ID_FIELD_NAME, messageId);
//Sets the version header
message.setStringProperty(JMSPropertyConstants.EVENT_VERSION_FIELD_NAME, bindingDescriptor.getServiceVersion().toString());
//Sets the event name header
message.setStringProperty(JMSPropertyConstants.EVENT_NAME_FIELD_NAME, event.getClass().getSimpleName());
message.setBooleanProperty("JMS_SonicMQ_preserveUndelivered", true);
message.setBooleanProperty("JMS_SonicMQ_notifyUndelivered", true);
message.setJMSDeliveryMode(deliveryMode);
message.setJMSExpiration(expirationTime);
message.setJMSPriority(priority);
return message;
} catch (JMSException jmsex) {
throw new CougarFrameworkException("Error marshalling Event", jmsex);
} catch (UnknownHostException e) {
throw new CougarFrameworkException("Error looking up local host name", e);
}
}
public String getCharacterEncoding() {
return characterEncoding;
}
public void setCharacterEncoding(String characterEncoding) {
this.characterEncoding = characterEncoding;
}
public int getDeliveryMode() {
return deliveryMode;
}
public void setDeliveryMode(int deliveryMode) {
this.deliveryMode = deliveryMode;
}
public long getExpirationTime() {
return expirationTime;
}
public void setExpirationTime(long expirationTime) {
this.expirationTime = expirationTime;
}
public int getPriority() {
return priority;
}
public void setPriority(int priority) {
this.priority = priority;
}
public DataBindingFactory getDataBindingFactory() {
return dataBindingFactory;
}
public void setDataBindingFactory(DataBindingFactory dataBindingFactory) {
this.dataBindingFactory = dataBindingFactory;
}
public void setDateFormatPattern(String dateFormatPattern) {
if (dateFormatPattern!= null) {
this.dateFormatPattern = dateFormatPattern;
}
}
}