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
015package org.apache.hivemind.test;
016
017import org.apache.hivemind.ApplicationRuntimeException;
018import org.apache.oro.text.regex.Pattern;
019import org.apache.oro.text.regex.Perl5Compiler;
020import 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 */
030public 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}