Line data    Source code

       1             : // Copyright (C) 2019 The Android Open Source Project
       2             : //
       3             : // Licensed under the Apache License, Version 2.0 (the "License");
       4             : // you may not use this file except in compliance with the License.
       5             : // You may obtain a copy of the License at
       6             : //
       7             : // http://www.apache.org/licenses/LICENSE-2.0
       8             : //
       9             : // Unless required by applicable law or agreed to in writing, software
      10             : // distributed under the License is distributed on an "AS IS" BASIS,
      11             : // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
      12             : // See the License for the specific language governing permissions and
      13             : // limitations under the License.
      14             : 
      15             : package com.google.gerrit.server.query.change;
      16             : 
      17             : import com.google.gerrit.server.index.change.ChangeField;
      18             : import dk.brics.automaton.RegExp;
      19             : import dk.brics.automaton.RunAutomaton;
      20             : 
      21             : public class RegexDirectoryPredicate extends ChangeRegexPredicate {
      22             :   protected final RunAutomaton pattern;
      23             : 
      24             :   public RegexDirectoryPredicate(String re) {
      25           4 :     super(ChangeField.DIRECTORY_SPEC, re);
      26             : 
      27           4 :     if (re.startsWith("^")) {
      28           4 :       re = re.substring(1);
      29             :     }
      30             : 
      31           4 :     if (re.endsWith("$") && !re.endsWith("\\$")) {
      32           0 :       re = re.substring(0, re.length() - 1);
      33             :     }
      34             : 
      35           4 :     this.pattern = new RunAutomaton(new RegExp(re).toAutomaton());
      36           4 :   }
      37             : 
      38             :   @Override
      39             :   public boolean match(ChangeData cd) {
      40           2 :     return ChangeField.getDirectories(cd).stream().anyMatch(pattern::run);
      41             :   }
      42             : 
      43             :   @Override
      44             :   public int getCost() {
      45           0 :     return 1;
      46             :   }
      47             : }