EchoSCPServlet.java

/* ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
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 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is part of dcm4che, an implementation of DICOM(TM) in
 * Java(TM), hosted at https://github.com/gunterze/dcm4che.
 *
 * The Initial Developer of the Original Code is
 * Agfa Healthcare.
 * Portions created by the Initial Developer are Copyright (C) 2012
 * the Initial Developer. All Rights Reserved.
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 * See @authors listed below
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package org.dcm4che3.sample.servlet;

import java.lang.management.ManagementFactory;

import javax.management.ObjectInstance;
import javax.management.ObjectName;
import javax.servlet.ServletConfig;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;

import org.dcm4che3.conf.api.internal.ExtendedDicomConfiguration;

/**
 * @author Gunter Zeilinger <gunterze@gmail.com>
 *
 */
@SuppressWarnings("serial")
public class EchoSCPServlet extends HttpServlet {

    private ObjectInstance mbean;

    private EchoSCP echoSCP;

    private ExtendedDicomConfiguration dicomConfig;

    @Override
    public void init(ServletConfig config) throws ServletException {
        super.init(config);
        try {
            //TODO: How will this work with the new config?
            dicomConfig = (ExtendedDicomConfiguration) Class.forName(
                    config.getInitParameter("dicomConfigurationClass"), false,
                    Thread.currentThread().getContextClassLoader()).newInstance();
            echoSCP = new EchoSCP(dicomConfig,
                    config.getInitParameter("deviceName"));
            echoSCP.start();
            mbean = ManagementFactory.getPlatformMBeanServer()
                    .registerMBean(echoSCP, 
                            new ObjectName(config.getInitParameter("jmxName")));
        } catch (Exception e) {
            destroy();
            throw new ServletException(e);
        }
    }

    @Override
    public void destroy() {
        if (mbean != null)
            try {
                ManagementFactory.getPlatformMBeanServer()
                    .unregisterMBean(mbean.getObjectName());
            } catch (Exception e) {
                e.printStackTrace();
            }
        if (echoSCP != null)
            echoSCP.stop();
        if (dicomConfig != null)
            dicomConfig.close();
    }

}