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.io.hfile;
019
020import org.apache.yetus.audience.InterfaceAudience;
021
022/**
023 * This BlockCompressedSizePredicator implementation doesn't actually performs any predicate and
024 * simply returns <b>true</b> on <code>shouldFinishBlock</code>. This is the default implementation
025 * if <b>hbase.block.compressed.size.predicator</b> property is not defined.
026 */
027@InterfaceAudience.Private
028public class UncompressedBlockSizePredicator implements BlockCompressedSizePredicator {
029
030  /**
031   * Empty implementation. Does nothing.
032   * @param uncompressed the uncompressed size of last block written.
033   * @param compressed   the compressed size of last block written.
034   */
035  @Override
036  public void updateLatestBlockSizes(HFileContext context, int uncompressed, int compressed) {
037  }
038
039  /**
040   * Dummy implementation that always returns true. This means, we will be only considering the
041   * block uncompressed size for deciding when to finish a block.
042   * @param uncompressed true if the block should be finished.
043   */
044  @Override
045  public boolean shouldFinishBlock(int uncompressed) {
046    return true;
047  }
048
049}