X-Git-Url: http://wamblee.org/gitweb/?a=blobdiff_plain;f=support%2Fsrc%2Forg%2Fwamblee%2Fconditions%2FPropertyRegexCondition.java;fp=support%2Fsrc%2Forg%2Fwamblee%2Fconditions%2FPropertyRegexCondition.java;h=48df7995cd0222547b7a52a8c6dbb4acb6f843d0;hb=029dffde0657e9ac9e28d5306e5ebba12a8e0a7c;hp=0000000000000000000000000000000000000000;hpb=2930da478b71246680d215417db64fa9ee3bde1c;p=utils

diff --git a/support/src/org/wamblee/conditions/PropertyRegexCondition.java b/support/src/org/wamblee/conditions/PropertyRegexCondition.java
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+++ b/support/src/org/wamblee/conditions/PropertyRegexCondition.java
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+/*
+ * Copyright 2005 the original author or authors.
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */ 
+
+package org.wamblee.conditions;
+
+import java.lang.reflect.InvocationTargetException;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+import org.apache.commons.beanutils.PropertyUtils;
+
+/**
+ * Condition to check whether a given property value matches a certain 
+ * regular expression.
+ */
+public class PropertyRegexCondition<T> implements Condition<T> {
+    
+    /**
+     * Property name. 
+     */
+    private String _property;
+    
+    /**
+     * Regular expression. 
+     */
+    private Pattern _regex;
+    
+    /**
+     * Constructs the condition. 
+     * @param aProperty Name of the property to examine. 
+     * @param aRegex Regular expression to use. 
+     */
+    public PropertyRegexCondition(String aProperty, String aRegex) {
+        _property = aProperty;
+        _regex = Pattern.compile(aRegex);
+    }
+
+    /* (non-Javadoc)
+     * @see org.wamblee.conditions.Condition#matches(T)
+     */
+    public boolean matches(T aObject) {
+        try {
+            String value = PropertyUtils.getProperty(aObject, _property) + "";
+            Matcher matcher = _regex.matcher(value); 
+            return matcher.matches(); 
+        } catch (IllegalAccessException e) {
+            throw new RuntimeException(e.getMessage(), e);
+        } catch (InvocationTargetException e) {
+            throw new RuntimeException(e.getMessage(), e);
+        } catch (NoSuchMethodException e) {
+            throw new RuntimeException(e.getMessage(), e);
+        }
+    }
+}