/*
* Copyright (c) 2008-2017, Hazelcast, Inc. All Rights Reserved.
*
* 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 com.hazelcast.config.matcher;
import com.hazelcast.config.ConfigPatternMatcher;
import com.hazelcast.config.ConfigurationException;
import java.util.regex.Pattern;
/**
* This <code>ConfigPatternMatcher</code> uses Java regular expressions for matching.
* <p/>
* Throws {@link com.hazelcast.config.ConfigurationException} is multiple configurations are found.
*/
public class RegexConfigPatternMatcher implements ConfigPatternMatcher {
private final int flags;
public RegexConfigPatternMatcher() {
this(0);
}
public RegexConfigPatternMatcher(int flags) {
this.flags = flags;
}
@Override
public String matches(Iterable<String> configPatterns, String itemName) throws ConfigurationException {
String candidate = null;
for (String pattern : configPatterns) {
if (Pattern.compile(pattern, flags).matcher(itemName).find()) {
if (candidate != null) {
throw new ConfigurationException(itemName, candidate, pattern);
}
candidate = pattern;
}
}
return candidate;
}
}