001/*
002 * Licensed to the Apache Software Foundation (ASF) under one
003 * or more contributor license agreements.  See the NOTICE file
004 * distributed with this work for additional information
005 * regarding copyright ownership.  The ASF licenses this file
006 * to you under the Apache License, Version 2.0 (the
007 * "License"); you may not use this file except in compliance
008 * with the License.  You may obtain a copy of the License at
009 *
010 *     http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing, software
013 * distributed under the License is distributed on an "AS IS" BASIS,
014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
015 * See the License for the specific language governing permissions and
016 * limitations under the License.
017 */
018package org.apache.hadoop.hbase.procedure2.store;
019
020import java.io.IOException;
021import org.apache.hadoop.hbase.procedure2.Procedure;
022import org.apache.hadoop.hbase.procedure2.ProcedureUtil;
023import org.apache.yetus.audience.InterfaceAudience;
024
025import org.apache.hadoop.hbase.shaded.protobuf.generated.ProcedureProtos;
026
027/**
028 * when loading we will iterator the procedures twice, so use this class to cache the deserialized
029 * result to prevent deserializing multiple times.
030 */
031@InterfaceAudience.Private
032public class ProtoAndProcedure {
033  private final ProcedureProtos.Procedure proto;
034
035  private Procedure<?> proc;
036
037  public ProtoAndProcedure(ProcedureProtos.Procedure proto) {
038    this.proto = proto;
039  }
040
041  public Procedure<?> getProcedure() throws IOException {
042    if (proc == null) {
043      proc = ProcedureUtil.convertToProcedure(proto);
044    }
045    return proc;
046  }
047
048  public ProcedureProtos.Procedure getProto() {
049    return proto;
050  }
051}