com.oneops.search.listener.SearchListener.java Source code

Java tutorial

Introduction

Here is the source code for com.oneops.search.listener.SearchListener.java

Source

/*******************************************************************************
 *  
 *   Copyright 2015 Walmart, Inc.
 *  
 *   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.oneops.search.listener;

import javax.jms.JMSException;
import javax.jms.Message;
import javax.jms.MessageListener;
import javax.jms.TextMessage;

import org.apache.commons.lang.StringUtils;
import org.apache.log4j.Logger;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

import com.oneops.search.msg.processor.MessageProcessor;

/**
 * 
 * @author ranand
 *
 */
public class SearchListener implements MessageListener {

    private static Logger logger = Logger.getLogger(SearchListener.class);

    private MessageProcessor msgProcessor;

    @Override
    public void onMessage(Message message) {

        try {
            if (message instanceof TextMessage) {
                logger.debug("got message: " + ((TextMessage) message).getJMSCorrelationID());
                processMessage((TextMessage) message);
            }
        } catch (JMSException e) {
            logger.error("JMSException in onMessage", e);
        }
    }

    /**
     * 
     * @param message
     * @throws JMSException
     */
    private void processMessage(TextMessage message) throws JMSException {
        //System.out.println(message);
        String jsonMsg = message.getText();
        String type = message.getStringProperty("type");
        //Check if message is coming from Dead Letter Queue
        if (message.getStringProperty("dlqDeliveryFailureCause") != null) {
            type = "dlq";
        }
        if (type == null) {
            type = message.getStringProperty("source");
        }
        ;
        String msgId = message.getStringProperty("msgId");
        if (msgId == null) {
            msgId = message.getStringProperty("sourceId");
        }
        ;
        String action = message.getStringProperty("action");
        if ("delete".equals(action) && "cm_ci".equals(type)) {
            msgId = message.getStringProperty("sourceId");
        } else if ("delete".equals(action) && "namespace".equals(type)) {
            msgId = message.getStringProperty("sourceId");
        }

        if (StringUtils.isNotBlank(jsonMsg)) {
            msgProcessor.processMessage(jsonMsg, type, msgId);
        } else {
            if (StringUtils.isNotBlank(type) && StringUtils.isNotBlank(msgId)) {
                msgProcessor.deleteMessage(type, msgId);
            }

            logger.warn("Received blank message for message type::" + type + ", id ::" + msgId);
        }
    }

    /**
     * 
     * @param woProcessor
     */
    public void setMsgProcessor(MessageProcessor msgProcessor) {
        this.msgProcessor = msgProcessor;
    }

    /**
     * allow it to run via cmdline
     */
    public static void main(String[] args) throws JMSException {

        //      if (args.length < 2) {
        //         System.out.println("Usage: java -jar search.jar cluster-name index");
        //         return;
        //      }

        @SuppressWarnings("unused")
        ApplicationContext context = new ClassPathXmlApplicationContext("search-context.xml");
    }

}