Line data    Source code

       1             : // Copyright (C) 2009 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.index.query;
      16             : 
      17             : import java.util.Collection;
      18             : 
      19             : /** Predicate to filter a field by matching value. */
      20             : public abstract class OperatorPredicate<T> extends Predicate<T> {
      21             :   protected final String name;
      22             :   protected final String value;
      23             : 
      24         153 :   public OperatorPredicate(String name, String value) {
      25         153 :     this.name = name;
      26         153 :     this.value = value;
      27         153 :   }
      28             : 
      29             :   public String getOperator() {
      30         152 :     return name;
      31             :   }
      32             : 
      33             :   public String getValue() {
      34          42 :     return value;
      35             :   }
      36             : 
      37             :   @Override
      38             :   public Predicate<T> copy(Collection<? extends Predicate<T>> children) {
      39           8 :     if (!children.isEmpty()) {
      40           1 :       throw new IllegalArgumentException("Expected 0 children");
      41             :     }
      42           8 :     return this;
      43             :   }
      44             : 
      45             :   @Override
      46             :   public int hashCode() {
      47           8 :     return getOperator().hashCode() * 31 + getValue().hashCode();
      48             :   }
      49             : 
      50             :   // Suppress the EqualsGetClass warning as this is legacy code.
      51             :   @SuppressWarnings("EqualsGetClass")
      52             :   @Override
      53             :   public boolean equals(Object other) {
      54           7 :     if (other == null) {
      55           0 :       return false;
      56             :     }
      57           7 :     if (getClass() == other.getClass()) {
      58           7 :       final OperatorPredicate<?> p = (OperatorPredicate<?>) other;
      59           7 :       return getOperator().equals(p.getOperator()) && getValue().equals(p.getValue());
      60             :     }
      61           5 :     return false;
      62             :   }
      63             : 
      64             :   @Override
      65             :   public String toString() {
      66          28 :     final String val = getValue();
      67          28 :     if (QueryParser.isSingleWord(val)) {
      68          27 :       return getOperator() + ":" + val;
      69             :     }
      70          22 :     return getOperator() + ":\"" + val + "\"";
      71             :   }
      72             : }