org.apache.activemq.artemis.core.settings.impl.Match Maven / Gradle / Ivy
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* 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.activemq.artemis.core.settings.impl;
import java.util.regex.Pattern;
import org.apache.activemq.artemis.core.config.WildcardConfiguration;
import org.apache.activemq.artemis.core.server.ActiveMQMessageBundle;
/**
* a Match is the holder for the match string and the object to hold against it.
*/
public class Match {
private static final String WILDCARD_REPLACEMENT = ".*";
private static final String WORD_WILDCARD_REPLACEMENT_FORMAT = "[^%s]+";
private static final String WILDCARD_CHILD_REPLACEMENT_FORMAT = "(%s.+)*";
private static final String DOT = ".";
private static final String DOT_REPLACEMENT = "\\.";
private final String match;
private final Pattern pattern;
private final T value;
public Match(final String match, final T value, final WildcardConfiguration wildcardConfiguration) {
this.match = match;
this.value = value;
String actMatch = match;
if (wildcardConfiguration.getAnyWordsString().equals(match)) {
// replace any regex characters
actMatch = Match.WILDCARD_REPLACEMENT;
} else {
// this is to match with what's documented
actMatch = actMatch.replace(wildcardConfiguration.getDelimiterString() + wildcardConfiguration.getAnyWordsString(), wildcardConfiguration.getAnyWordsString());
actMatch = actMatch.replace(Match.DOT, Match.DOT_REPLACEMENT);
actMatch = actMatch.replace(wildcardConfiguration.getSingleWordString(), String.format(WORD_WILDCARD_REPLACEMENT_FORMAT, Pattern.quote(wildcardConfiguration.getDelimiterString())));
// this one has to be done by last as we are using .* and it could be replaced wrongly if delimiter is '.'
actMatch = actMatch.replace(wildcardConfiguration.getAnyWordsString(), String.format(WILDCARD_CHILD_REPLACEMENT_FORMAT, Pattern.quote(wildcardConfiguration.getDelimiterString())));
}
pattern = Pattern.compile(actMatch);
}
public final String getMatch() {
return match;
}
public final Pattern getPattern() {
return pattern;
}
public final T getValue() {
return value;
}
@Override
public boolean equals(final Object o) {
if (this == o) {
return true;
}
if (o == null || getClass() != o.getClass()) {
return false;
}
@SuppressWarnings("rawtypes")
Match that = (Match) o;
return !(match != null ? !match.equals(that.match) : that.match != null);
}
@Override
public int hashCode() {
return match != null ? match.hashCode() : 0;
}
/**
* utility method to verify consistency of match
*
* @param match the match to validate
* @throws IllegalArgumentException if a match isn't valid
*/
public static void verify(final String match, final WildcardConfiguration wildcardConfiguration) throws IllegalArgumentException {
if (match == null) {
throw ActiveMQMessageBundle.BUNDLE.nullMatch();
}
final String anyWords = wildcardConfiguration.getAnyWordsString();
if (match.contains(anyWords) && match.indexOf(anyWords) < match.length() - 1) {
throw ActiveMQMessageBundle.BUNDLE.invalidMatch();
}
}
@Override
public String toString() {
return value.toString();
}
}