001/**
002 * Licensed to the Apache Software Foundation (ASF) under one or more
003 * contributor license agreements.  See the NOTICE file distributed with
004 * this work for additional information regarding copyright ownership.
005 * The ASF licenses this file to You under the Apache License, Version 2.0
006 * (the "License"); you may not use this file except in compliance with
007 * the License.  You may obtain a copy of the License at
008 *
009 *      http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 */
017package org.apache.activemq.web;
018
019import org.springframework.beans.factory.DisposableBean;
020import org.springframework.web.context.request.RequestContextHolder;
021import org.springframework.web.context.request.ServletRequestAttributes;
022
023import javax.jms.JMSException;
024import javax.jms.Queue;
025import javax.jms.QueueBrowser;
026import javax.jms.Session;
027
028/**
029 *
030 *
031 */
032public class QueueBrowseQuery extends DestinationFacade implements DisposableBean {
033    private String selector;
034    private Queue queue;
035    private QueueBrowser browser;
036
037    public QueueBrowseQuery(BrokerFacade brokerFacade) throws JMSException {
038        super(brokerFacade);
039        setJMSDestinationType("query");
040    }
041
042    public void destroy() throws Exception {
043        if (browser != null) {
044            browser.close();
045        }
046    }
047
048    public QueueBrowser getBrowser() throws JMSException {
049        if (browser == null) {
050            browser = createBrowser();
051        }
052        return browser;
053    }
054
055    public void setBrowser(QueueBrowser browser) {
056        this.browser = browser;
057    }
058
059    public Queue getQueue() throws JMSException {
060        if (queue == null) {
061            queue = getSession().createQueue(getValidDestination());
062        }
063        return queue;
064    }
065
066    public void setQueue(Queue queue) {
067        this.queue = queue;
068    }
069
070    public String getSelector() {
071        return selector;
072    }
073
074    public void setSelector(String selector) {
075        this.selector = selector;
076    }
077
078    public Session getSession() throws JMSException {
079        ServletRequestAttributes servletRequestAttributes = (ServletRequestAttributes) RequestContextHolder.currentRequestAttributes();
080
081        return WebClient.getWebClient(servletRequestAttributes.getRequest()).getSession();
082    }
083
084
085    public boolean isQueue() {
086        return true;
087    }
088
089    protected QueueBrowser createBrowser() throws JMSException {
090        return getSession().createBrowser(getQueue(), getSelector());
091    }
092
093}