content: /**
   * event-bus - An event bus framework for event driven programming
   * Copyright (C) 2016  Adrian Cristian Ionescu - https://github.com/acionescu
   *
   * 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 net.segoia.event.eventbus.peers.security.rules;
  
  import java.util.regex.Pattern;
  
  public class RegexRuleMatcher extends RuleMatcher {
      public static final String TYPE = "REGEX";
      private String regex;
      private Pattern pattern;
  
      public RegexRuleMatcher() {
  	super(TYPE);
      }
  
      public RegexRuleMatcher( String regex) {
  	this();
  	this.regex = regex;
      }
  
      protected Pattern getPattern() {
  	if (pattern == null) {
  	    pattern = Pattern.compile(regex);
  	}
  	return pattern;
      }
  
      public String getRegex() {
  	return regex;
      }
  
      public void setRegex(String regex) {
  	this.regex = regex;
      }
  
      @Override
      public boolean matches(RuleMatchContext context) {
  	return getPattern().matcher(context.getEventSignature()).matches();
      }
  
  }
  