/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to you 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.apache.jmeter.gui.action;

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

import org.apache.commons.lang3.StringUtils;

/**
 * Regexp search implementation
 */
public class RegexpSearcher implements Searcher {

    private boolean caseSensitive;
    private String regexp;
    /**
     * Constructor
     * @param caseSensitive is search case sensitive
     * @param regexp Regexp to search
     */
    public RegexpSearcher(boolean caseSensitive, String regexp) {
        super();
        this.caseSensitive = caseSensitive;
        this.regexp = regexp;
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public boolean search(List<String> textTokens) {
        Pattern pattern;
        if (caseSensitive) {
            pattern = Pattern.compile(regexp);
        } else {
            pattern = Pattern.compile(regexp, Pattern.CASE_INSENSITIVE);
        }
        return textTokens.stream()
                .filter(token -> !StringUtils.isEmpty(token))
                .map(token -> caseSensitive ?
                        pattern.matcher(token) :
                        pattern.matcher(token.toLowerCase()))
                .anyMatch(Matcher::find);
    }

    @Override
    public String toString() {
        return "RegexpSearcher [caseSensitive=" + caseSensitive + ", regexp=" + regexp + "]";
    }
}
