001    // Copyright 2004, 2005 The Apache Software Foundation
002    //
003    // Licensed under the Apache License, Version 2.0 (the "License");
004    // you may not use this file except in compliance with the License.
005    // You may obtain a copy of the License at
006    //
007    //     http://www.apache.org/licenses/LICENSE-2.0
008    //
009    // Unless required by applicable law or agreed to in writing, software
010    // distributed under the License is distributed on an "AS IS" BASIS,
011    // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
012    // See the License for the specific language governing permissions and
013    // limitations under the License.
014    
015    package org.apache.hivemind.test;
016    
017    import org.apache.hivemind.ApplicationRuntimeException;
018    import org.apache.oro.text.regex.Pattern;
019    import org.apache.oro.text.regex.Perl5Compiler;
020    import org.apache.oro.text.regex.Perl5Matcher;
021    
022    /**
023     * A {@link org.apache.hivemind.test.ArgumentMatcher} implementation that treats the expected
024     * value (provided while training the mock object) as a Perl5 Regular expression, which is matched
025     * against the actual value.
026     * 
027     * @author Howard Lewis Ship
028     * @since 1.1
029     */
030    public class RegexpMatcher extends AbstractArgumentMatcher
031    {
032        private static Perl5Compiler _compiler = new Perl5Compiler();
033    
034        private static Perl5Matcher _matcher = new Perl5Matcher();
035    
036        public boolean compareArguments(Object expected, Object actual)
037        {
038            return matchRegexp((String) expected, (String) actual);
039        }
040    
041        private boolean matchRegexp(String expectedRegexp, String actualString)
042        {
043            try
044            {
045                Pattern p = _compiler.compile(expectedRegexp);
046    
047                return _matcher.matches(actualString, p);
048            }
049            catch (Exception ex)
050            {
051                throw new ApplicationRuntimeException(ex);
052            }
053        }
054    }