001/* ***** BEGIN LICENSE BLOCK *****
002 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
003 *
004 * The contents of this file are subject to the Mozilla Public License Version
005 * 1.1 (the "License"); you may not use this file except in compliance with
006 * the License. You may obtain a copy of the License at
007 * http://www.mozilla.org/MPL/
008 *
009 * Software distributed under the License is distributed on an "AS IS" basis,
010 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
011 * for the specific language governing rights and limitations under the
012 * License.
013 *
014 * The Original Code is part of dcm4che, an implementation of DICOM(TM) in
015 * Java(TM), hosted at https://github.com/gunterze/dcm4che.
016 *
017 * The Initial Developer of the Original Code is
018 * Agfa Healthcare.
019 * Portions created by the Initial Developer are Copyright (C) 2012
020 * the Initial Developer. All Rights Reserved.
021 *
022 * Contributor(s):
023 * See @authors listed below
024 *
025 * Alternatively, the contents of this file may be used under the terms of
026 * either the GNU General Public License Version 2 or later (the "GPL"), or
027 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
028 * in which case the provisions of the GPL or the LGPL are applicable instead
029 * of those above. If you wish to allow use of your version of this file only
030 * under the terms of either the GPL or the LGPL, and not to allow others to
031 * use your version of this file under the terms of the MPL, indicate your
032 * decision by deleting the provisions above and replace them with the notice
033 * and other provisions required by the GPL or the LGPL. If you do not delete
034 * the provisions above, a recipient may use your version of this file under
035 * the terms of any one of the MPL, the GPL or the LGPL.
036 *
037 * ***** END LICENSE BLOCK ***** */
038
039package org.dcm4che3.net.hl7.service;
040
041import java.net.Socket;
042import java.util.ArrayList;
043import java.util.HashMap;
044
045import org.dcm4che3.hl7.HL7Exception;
046import org.dcm4che3.hl7.HL7Segment;
047import org.dcm4che3.net.Connection;
048import org.dcm4che3.net.hl7.DefaultHL7MessageListener;
049import org.dcm4che3.net.hl7.HL7Application;
050import org.dcm4che3.net.hl7.HL7MessageListener;
051
052/**
053 * @author Gunter Zeilinger <gunterze@gmail.com>
054 *
055 */
056public class HL7ServiceRegistry extends DefaultHL7MessageListener {
057
058    private final ArrayList<HL7Service> services = new ArrayList<HL7Service>();
059    private final HashMap<String,HL7MessageListener> listeners =
060            new HashMap<String,HL7MessageListener>();
061
062    public synchronized void addHL7Service(HL7Service service) {
063        services.add(service);
064        for (String messageType : service.getMessageTypes())
065            listeners.put(messageType, service);
066    }
067
068    public synchronized boolean removeHL7Service(HL7Service service) {
069        if (!services.remove(service))
070            return false;
071        
072        for (String messageType : service.getMessageTypes())
073            listeners.remove(messageType);
074
075        return true;
076    }
077
078    @Override
079    public byte[] onMessage(HL7Application hl7App, Connection conn, Socket s,
080            HL7Segment msh, byte[] msg, int off, int len, int mshlen) throws HL7Exception {
081        HL7MessageListener listener = listeners.get(msh.getMessageType());
082        if (listener == null) {
083            listener = listeners.get("*");
084            if (listener == null)
085                return super.onMessage(hl7App, conn, s, msh, msg, off, len, mshlen);
086        }
087        return  listener.onMessage(hl7App, conn, s, msh, msg, off, len, mshlen);
088    }
089 
090}