/*
    * Licensed to the Apache Software Foundation (ASF) under one
    * or more contributor license agreements.  See the NOTICE file
    * distributed with this work for additional information
    * regarding copyright ownership.  The ASF licenses this file
    * to you under the Apache License, Version 2.0 (the
    * "License"); you may not use this file except in compliance
    * with the License.  You may obtain a copy of the License at
    *
   *   http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  package org.apache.omid.transaction;
  
  import static com.google.common.base.Charsets.UTF_8;
  
  import org.apache.omid.tso.client.CellId;
  
  import org.apache.phoenix.thirdparty.com.google.common.hash.Hasher;
  import org.apache.phoenix.thirdparty.com.google.common.hash.Hashing;
  
  public class HBaseCellId implements CellId {
  
      private final TTable table;
      private final byte[] row;
      private final byte[] family;
      private final byte[] qualifier;
      private long timestamp;
  
      public HBaseCellId(TTable table, byte[] row, byte[] family, byte[] qualifier, long timestamp) {
          this.timestamp = timestamp;
          this.table = table;
          this.row = row;
          this.family = family;
          this.qualifier = qualifier;
      }
  
      public TTable getTable() {
          return table;
      }
  
      public byte[] getRow() {
          return row;
      }
  
      public byte[] getFamily() {
          return family;
      }
  
      public byte[] getQualifier() {
          return qualifier;
      }
  
      public long getTimestamp() {
          return timestamp;
      }
  
      @Override
      public String toString() {
          return new String(table.getTableName(), UTF_8)
                  + ":" + new String(row, UTF_8)
                  + ":" + new String(family, UTF_8)
                  + ":" + new String(qualifier, UTF_8)
                  + ":" + timestamp;
      }
  
      @Override
      public long getCellId() {
          return getHasher()
                  .putBytes(table.getTableName())
                  .putBytes(row)
                  .putBytes(family)
                  .putBytes(qualifier)
                  .hash().asLong();
      }
  
      @Override
      public long getTableId() {
          return getHasher()
                  .putBytes(table.getTableName())
                  .hash().asLong();
      }
  
      @Override
      public long getRowId() {
          return getHasher()
                  .putBytes(table.getTableName())
                  .putBytes(row)
                  .hash().asLong();
      }
  
      public static Hasher getHasher() {
          return Hashing.murmur3_128().newHasher();
      }
 }