Line data    Source code

       1             : // Copyright (C) 2012 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.patch;
      16             : 
      17             : import com.google.common.cache.Weigher;
      18             : 
      19             : /** Approximates memory usage for IntralineDiff in bytes of memory used. */
      20         152 : public class IntraLineWeigher implements Weigher<IntraLineDiffKey, IntraLineDiff> {
      21             :   @Override
      22             :   public int weigh(IntraLineDiffKey key, IntraLineDiff value) {
      23           5 :     return 16
      24             :         + 8 * 8
      25             :         + 2 * 36 // Size of IntraLineDiffKey, 64 bit JVM
      26             :         + 16
      27             :         + 2 * 8
      28             :         + 16
      29             :         + 8
      30             :         + 4
      31             :         + 20 // Size of IntraLineDiff, 64 bit JVM
      32           5 :         + (8 + 16 + 4 * 4) * value.getEdits().size();
      33             :   }
      34             : }