001    /**
002    The contents of this file are subject to the Mozilla Public License Version 1.1 
003    (the "License"); you may not use this file except in compliance with the License. 
004    You may obtain a copy of the License at http://www.mozilla.org/MPL/ 
005    Software distributed under the License is distributed on an "AS IS" basis, 
006    WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License for the 
007    specific language governing rights and limitations under the License. 
008    
009    The Original Code is "MessageRuleBinding.java".  Description: 
010    "A RuleBinding that applies to MessageRules." 
011    
012    The Initial Developer of the Original Code is University Health Network. Copyright (C) 
013    2004.  All Rights Reserved. 
014    
015    Contributor(s): ______________________________________. 
016    
017    Alternatively, the contents of this file may be used under the terms of the 
018    GNU General Public License (the "GPL"), in which case the provisions of the GPL are 
019    applicable instead of those above.  If you wish to allow use of your version of this 
020    file only under the terms of the GPL and not to allow others to use your version 
021    of this file under the MPL, indicate your decision by deleting  the provisions above 
022    and replace  them with the notice and other provisions required by the GPL License.  
023    If you do not delete the provisions above, a recipient may use your version of 
024    this file under either the MPL or the GPL. 
025    */
026    package ca.uhn.hl7v2.validation.impl;
027    
028    import java.util.StringTokenizer;
029    
030    import ca.uhn.hl7v2.validation.MessageRule;
031    
032    /**
033     * A <code>RuleBinding</code> that applies to <code>MessageRule</code>s. 
034     * 
035     * @author <a href="mailto:bryan.tripp@uhn.on.ca">Bryan Tripp</a>
036     * @version $Revision: 1.1 $ updated on $Date: 2007-02-19 02:24:40 $ by $Author: jamesagnew $
037     */
038    @SuppressWarnings("serial")
039    public class MessageRuleBinding extends RuleBinding<MessageRule> {
040    
041        private String myMessageType;
042        private String myTriggerEvent;
043        private static final String delim = "^";
044        
045        /**
046         * @param theVersion see {@link RuleBinding#getVersion()}
047         * @param theMessageType a value valid for MSH-9-1 or * for all
048         * @param theTriggerEvent a value valid for MSH-9-2 or * for all
049         * @param theRule 
050         */
051        public MessageRuleBinding(String theVersion, String theMessageType, String theTriggerEvent, MessageRule theRule) {
052            super(theVersion, theMessageType + "^" + theTriggerEvent, theRule);
053            myMessageType = theMessageType;
054            myTriggerEvent = theTriggerEvent;
055        }
056        
057        /**
058         * @param theScope must be in the form type^event (ie message type and trigger event separated
059         *      by a carat)
060         */
061        public boolean appliesToScope(String theScope) {
062            
063            if (!theScope.matches(".*\\^.*")) {
064                throw new IllegalArgumentException("arg theScope must be of the form type^event");
065            }
066            
067            StringTokenizer tok = new StringTokenizer(theScope, delim, false);
068            String itemType = tok.nextToken();
069            String itemEvent = tok.nextToken();
070            
071            return (applies(myMessageType, itemType) && applies(myTriggerEvent, itemEvent));
072        }
073    
074    }