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 "ValidationContextImpl.java". Description:
010 "A default implementation of ValidationContext."
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.io.Serializable;
029 import java.util.ArrayList;
030 import java.util.List;
031
032 import ca.uhn.hl7v2.model.Primitive;
033 import ca.uhn.hl7v2.validation.EncodingRule;
034 import ca.uhn.hl7v2.validation.MessageRule;
035 import ca.uhn.hl7v2.validation.PrimitiveTypeRule;
036 import ca.uhn.hl7v2.validation.Rule;
037 import ca.uhn.hl7v2.validation.ValidationContext;
038
039 /**
040 * A default implementation of <code>ValidationContext</code>.
041 *
042 * @author <a href="mailto:bryan.tripp@uhn.on.ca">Bryan Tripp</a>
043 * @author Christian Ohr
044 */
045 @SuppressWarnings("serial")
046 public class ValidationContextImpl implements ValidationContext, Serializable {
047
048 private List<RuleBinding<PrimitiveTypeRule>> myPrimitiveRuleBindings;
049 private List<RuleBinding<MessageRule>> myMessageRuleBindings;
050 private List<RuleBinding<EncodingRule>> myEncodingRuleBindings;
051
052 public ValidationContextImpl() {
053 myPrimitiveRuleBindings = new ArrayList<RuleBinding<PrimitiveTypeRule>>();
054 myMessageRuleBindings = new ArrayList<RuleBinding<MessageRule>>();
055 myEncodingRuleBindings = new ArrayList<RuleBinding<EncodingRule>>();
056 }
057
058 /**
059 * @see ca.uhn.hl7v2.validation.ValidationContext#getDataTypeRules(java.lang.String,
060 * java.lang.String)
061 * @param theType ignored
062 */
063 public PrimitiveTypeRule[] getPrimitiveRules(String theVersion, String theTypeName, Primitive theType) {
064 return getRules(myPrimitiveRuleBindings, theVersion, theTypeName, PrimitiveTypeRule.class);
065 }
066
067 /**
068 * @return a List of <code>RuleBinding</code>s for
069 * <code>PrimitiveTypeRule</code>s.
070 */
071 public List<RuleBinding<PrimitiveTypeRule>> getPrimitiveRuleBindings() {
072 return myPrimitiveRuleBindings;
073 }
074
075
076 /**
077 * @see ca.uhn.hl7v2.validation.ValidationContext
078 * #getMessageRules(java.lang.String, java.lang.String,
079 * java.lang.String)
080 */
081 public MessageRule[] getMessageRules(String theVersion, String theMessageType, String theTriggerEvent) {
082 return getRules(myMessageRuleBindings, theVersion, theMessageType + "^" + theTriggerEvent, MessageRule.class);
083 }
084
085 /**
086 * @return a List of <code>RuleBinding</code>s for <code>MessageRule</code>s.
087 */
088 public List<RuleBinding<MessageRule>> getMessageRuleBindings() {
089 return myMessageRuleBindings;
090 }
091
092 /**
093 * @see ca.uhn.hl7v2.validation.ValidationContext#getEncodingRules(java.lang.String,
094 * java.lang.String)
095 */
096 public EncodingRule[] getEncodingRules(String theVersion, String theEncoding) {
097 return getRules(myEncodingRuleBindings, theVersion, theEncoding, EncodingRule.class);
098 }
099
100 /**
101 * @return a List of <code>RuleBinding</code>s for <code>EncodingRule</code>s.
102 */
103 public List<RuleBinding<EncodingRule>> getEncodingRuleBindings() {
104 return myEncodingRuleBindings;
105 }
106
107 private <T extends Rule> T[] getRules(List<RuleBinding<T>> bindings, String version, String scope,
108 Class<T> ruleClass) {
109 List<T> active = new ArrayList<T>(bindings.size());
110 for (RuleBinding<T> binding : bindings) {
111 if (applies(binding, version, scope))
112 active.add(binding.getRule());
113 }
114 return toArray(active, ruleClass);
115 }
116
117 private boolean applies(RuleBinding<?> binding, String version, String scope) {
118 return (binding.getActive() && binding.appliesToVersion(version) && binding.appliesToScope(scope));
119 }
120
121 @SuppressWarnings("unchecked")
122 private <T> T[] toArray(List<T> list, Class<T> c) {
123 return list.toArray((T[]) java.lang.reflect.Array.newInstance(c, list.size()));
124 }
125
126 }