org.sakaiproject.kernel.messaging.JmsEmailMessageHandler.java Source code

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Here is the source code for org.sakaiproject.kernel.messaging.JmsEmailMessageHandler.java

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/*
 * Licensed to the Sakai Foundation (SF) under one
 * or more contributor license agreements. See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership. The SF 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.sakaiproject.kernel.messaging;

import com.google.inject.name.Named;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.sakaiproject.kernel.KernelConstants;
import org.sakaiproject.kernel.api.jcr.support.JCRNodeFactoryService;
import org.sakaiproject.kernel.api.jcr.support.JCRNodeFactoryServiceException;
import org.sakaiproject.kernel.api.messaging.Message;
import org.sakaiproject.kernel.api.messaging.MessageHandler;
import org.sakaiproject.kernel.util.IOUtils;

import java.io.IOException;
import java.io.InputStream;
import java.io.UnsupportedEncodingException;

import javax.jcr.Node;
import javax.jcr.RepositoryException;
import javax.jms.Connection;
import javax.jms.ConnectionFactory;
import javax.jms.Destination;
import javax.jms.JMSException;
import javax.jms.MessageProducer;
import javax.jms.ObjectMessage;
import javax.jms.Session;

/**
 *
 */
public class JmsEmailMessageHandler implements MessageHandler {
    private static final String KEY = Message.Type.EMAIL.toString();
    private static final Log log = LogFactory.getLog(JmsEmailMessageHandler.class);

    private JCRNodeFactoryService nodeFactory;
    private ConnectionFactory connFactory;
    private String emailQueueName;
    private String emailJmsType;

    public JmsEmailMessageHandler(JCRNodeFactoryService nodeFactory, ConnectionFactory connFactory,
            @Named(KernelConstants.JMS_EMAIL_QUEUE) String emailQueueName,
            @Named(KernelConstants.JMS_EMAIL_TYPE) String emailJmsType) {
        this.nodeFactory = nodeFactory;
        this.connFactory = connFactory;
        this.emailQueueName = emailQueueName;
        this.emailJmsType = emailJmsType;
    }

    /**
     * {@inheritDoc}
     *
     * @see org.sakaiproject.kernel.api.messaging.MessageHandler#handle(java.lang.String,
     *      java.lang.String, java.lang.String, javax.jcr.Node)
     */
    public void handle(String userID, String filePath, String fileName, Node node) {
        try {
            InputStream inputStream = nodeFactory.getInputStream(filePath);
            String content = IOUtils.readFully(inputStream, "UTF-8");
            Connection conn = connFactory.createConnection();
            conn.setClientID("sakai.emailmessagehandler");
            Session clientSession = conn.createSession(false, Session.AUTO_ACKNOWLEDGE);
            Destination emailTopic = clientSession.createTopic(emailQueueName);
            MessageProducer client = clientSession.createProducer(emailTopic);
            ObjectMessage mesg = clientSession.createObjectMessage(content);
            mesg.setJMSType(emailJmsType);
            client.send(mesg);
        } catch (JMSException e) {
            log.error(e.getMessage(), e);
        } catch (RepositoryException e) {
            log.error(e.getMessage(), e);
        } catch (JCRNodeFactoryServiceException e) {
            log.error(e.getMessage(), e);
        } catch (UnsupportedEncodingException e) {
            log.error(e.getMessage(), e);
        } catch (IOException e) {
            log.error(e.getMessage(), e);
        }
    }

    /**
     * {@inheritDoc}
     *
     * @see org.sakaiproject.kernel.api.Provider#getKey()
     */
    public String getKey() {
        return KEY;
    }

    /**
     * {@inheritDoc}
     *
     * @see org.sakaiproject.kernel.api.Provider#getPriority()
     */
    public int getPriority() {
        return 0;
    }

}