/*
 * 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.crawler.kiss;

import java.util.regex.Matcher;
import java.util.regex.Pattern;

import org.wamblee.conditions.Condition;

/**
 * Match programs based on a regular expression for the name in lower case. 
 */
public class ProgramNameMatcher implements Condition<Program> {
    
    /**
     * Pattern which describes interesting programs. 
     */
    private Pattern _pattern; 
    
    /**
     * Constructs the matcher. 
     * @param aPattern Pattern that describes interesting programs. 
     */
    public ProgramNameMatcher(String aPattern) { 
        _pattern = Pattern.compile(aPattern);
    }

    /**
     * Determines if the program name matches.
     * @param aProgram Program. 
     * @return True iff the program name matches. 
     */
    public boolean matches(Program aProgram) {
        Matcher matcher = _pattern.matcher(aProgram.getName().toLowerCase());
        return matcher.matches();
    }
}