Line data    Source code

       1             : // Copyright (C) 2013 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.change;
      16             : 
      17             : import com.google.auto.value.AutoValue;
      18             : import com.google.gerrit.entities.BranchNameKey;
      19             : import com.google.gerrit.entities.Change;
      20             : import com.google.gerrit.entities.Project;
      21             : import com.google.gerrit.extensions.restapi.Url;
      22             : import java.util.Optional;
      23             : 
      24             : @AutoValue
      25          18 : public abstract class ChangeTriplet {
      26             :   public static String format(Change change) {
      27           4 :     return format(change.getDest(), change.getKey());
      28             :   }
      29             : 
      30             :   private static String format(BranchNameKey branch, Change.Key change) {
      31           4 :     return branch.project().get() + "~" + branch.shortName() + "~" + change.get();
      32             :   }
      33             : 
      34             :   /**
      35             :    * Parse a triplet out of a string.
      36             :    *
      37             :    * @param triplet string of the form "project~branch~id".
      38             :    * @return the triplet if the input string has the proper format, or absent if not.
      39             :    */
      40             :   public static Optional<ChangeTriplet> parse(String triplet) {
      41          19 :     int z = triplet.lastIndexOf('~');
      42          19 :     int y = triplet.lastIndexOf('~', z - 1);
      43          19 :     return parse(triplet, y, z);
      44             :   }
      45             : 
      46             :   public static Optional<ChangeTriplet> parse(String triplet, int y, int z) {
      47          26 :     if (y < 0 || z < 0) {
      48          19 :       return Optional.empty();
      49             :     }
      50             : 
      51          18 :     String project = Url.decode(triplet.substring(0, y));
      52          18 :     String branch = Url.decode(triplet.substring(y + 1, z));
      53          18 :     String changeId = Url.decode(triplet.substring(z + 1));
      54          18 :     return Optional.of(
      55             :         new AutoValue_ChangeTriplet(
      56          18 :             BranchNameKey.create(Project.nameKey(project), branch), Change.key(changeId)));
      57             :   }
      58             : 
      59             :   public final Project.NameKey project() {
      60           4 :     return branch().project();
      61             :   }
      62             : 
      63             :   public abstract BranchNameKey branch();
      64             : 
      65             :   public abstract Change.Key id();
      66             : 
      67             :   @Override
      68             :   public final String toString() {
      69           0 :     return format(branch(), id());
      70             :   }
      71             : }