Line data    Source code

       1             : // Copyright (C) 2018 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.cache.h2;
      16             : 
      17             : import com.google.common.hash.Funnel;
      18             : import com.google.common.hash.Funnels;
      19             : import com.google.common.hash.PrimitiveSink;
      20             : import com.google.gerrit.server.cache.serialize.CacheSerializer;
      21             : import java.io.IOException;
      22             : import java.sql.PreparedStatement;
      23             : import java.sql.ResultSet;
      24             : import java.sql.SQLException;
      25             : 
      26             : class ObjectKeyTypeImpl<K> implements KeyType<K> {
      27             :   private final CacheSerializer<K> serializer;
      28             : 
      29          15 :   ObjectKeyTypeImpl(CacheSerializer<K> serializer) {
      30          15 :     this.serializer = serializer;
      31          15 :   }
      32             : 
      33             :   @Override
      34             :   public String columnType() {
      35          15 :     return "OTHER";
      36             :   }
      37             : 
      38             :   @Override
      39             :   public K get(ResultSet rs, int col) throws IOException, SQLException {
      40          15 :     return serializer.deserialize(rs.getBytes(col));
      41             :   }
      42             : 
      43             :   @Override
      44             :   public void set(PreparedStatement ps, int col, K key) throws IOException, SQLException {
      45          15 :     ps.setBytes(col, serializer.serialize(key));
      46          15 :   }
      47             : 
      48             :   @Override
      49             :   public Funnel<K> funnel() {
      50          15 :     return new Funnel<>() {
      51             :       private static final long serialVersionUID = 1L;
      52             : 
      53             :       @Override
      54             :       public void funnel(K from, PrimitiveSink into) {
      55          15 :         Funnels.byteArrayFunnel().funnel(serializer.serialize(from), into);
      56          15 :       }
      57             :     };
      58             :   }
      59             : }