Line data    Source code

       1             : // Copyright (C) 2021 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.approval;
      16             : 
      17             : import com.google.gerrit.index.query.Predicate;
      18             : import com.google.gerrit.server.project.ProjectCache;
      19             : import com.google.inject.Inject;
      20             : import com.google.inject.assistedinject.Assisted;
      21             : import java.util.Collection;
      22             : import java.util.Objects;
      23             : 
      24             : /** Predicate that matches patch set approvals we want to copy based on the value. */
      25             : public class MagicValuePredicate extends ApprovalPredicate {
      26         152 :   enum MagicValue {
      27         152 :     MIN,
      28         152 :     MAX,
      29         152 :     ANY
      30             :   }
      31             : 
      32             :   public interface Factory {
      33             :     MagicValuePredicate create(MagicValue value);
      34             :   }
      35             : 
      36             :   private final MagicValue value;
      37             :   private final ProjectCache projectCache;
      38             : 
      39             :   @Inject
      40          16 :   MagicValuePredicate(ProjectCache projectCache, @Assisted MagicValue value) {
      41          16 :     this.projectCache = projectCache;
      42          16 :     this.value = value;
      43          16 :   }
      44             : 
      45             :   @Override
      46             :   public boolean match(ApprovalContext ctx) {
      47             :     short pValue;
      48          13 :     switch (value) {
      49             :       case ANY:
      50           5 :         return true;
      51             :       case MIN:
      52          10 :         pValue = ctx.labelType().getMaxNegative();
      53          10 :         break;
      54             :       case MAX:
      55           7 :         pValue = ctx.labelType().getMaxPositive();
      56           7 :         break;
      57             :       default:
      58           0 :         throw new IllegalArgumentException("unrecognized label value: " + value);
      59             :     }
      60          11 :     return pValue == ctx.approvalValue();
      61             :   }
      62             : 
      63             :   @Override
      64             :   public Predicate<ApprovalContext> copy(
      65             :       Collection<? extends Predicate<ApprovalContext>> children) {
      66           0 :     return new MagicValuePredicate(projectCache, value);
      67             :   }
      68             : 
      69             :   @Override
      70             :   public int hashCode() {
      71           0 :     return Objects.hash(value);
      72             :   }
      73             : 
      74             :   @Override
      75             :   public boolean equals(Object other) {
      76           0 :     if (!(other instanceof MagicValuePredicate)) {
      77           0 :       return false;
      78             :     }
      79           0 :     return ((MagicValuePredicate) other).value.equals(value);
      80             :   }
      81             : }