001/**
002 *
003 * Licensed to the Apache Software Foundation (ASF) under one
004 * or more contributor license agreements.  See the NOTICE file
005 * distributed with this work for additional information
006 * regarding copyright ownership.  The ASF licenses this file
007 * to you under the Apache License, Version 2.0 (the
008 * "License"); you may not use this file except in compliance
009 * with the License.  You may obtain a copy of the License at
010 *
011 *     http://www.apache.org/licenses/LICENSE-2.0
012 *
013 * Unless required by applicable law or agreed to in writing, software
014 * distributed under the License is distributed on an "AS IS" BASIS,
015 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
016 * See the License for the specific language governing permissions and
017 * limitations under the License.
018 */
019package org.apache.hadoop.hbase.io.hfile;
020
021import org.apache.hadoop.fs.Path;
022import org.apache.hadoop.hbase.fs.HFileSystem;
023import org.apache.hadoop.hbase.io.FSDataInputStreamWrapper;
024import org.apache.yetus.audience.InterfaceAudience;
025
026/**
027 * Carries the information on some of the meta data about the HFile Reader
028 */
029@InterfaceAudience.Private
030public class ReaderContext {
031  @InterfaceAudience.Private
032  public enum ReaderType {
033    PREAD,
034    STREAM
035  }
036  private final Path filePath;
037  private final FSDataInputStreamWrapper fsdis;
038  private final long fileSize;
039  private final HFileSystem hfs;
040  private final boolean primaryReplicaReader;
041  private final ReaderType type;
042
043  public ReaderContext(Path filePath, FSDataInputStreamWrapper fsdis, long fileSize,
044      HFileSystem hfs, boolean primaryReplicaReader, ReaderType type) {
045    this.filePath = filePath;
046    this.fsdis = fsdis;
047    this.fileSize = fileSize;
048    this.hfs = hfs;
049    this.primaryReplicaReader = primaryReplicaReader;
050    this.type = type;
051  }
052
053  public Path getFilePath() {
054    return this.filePath;
055  }
056
057  public FSDataInputStreamWrapper getInputStreamWrapper() {
058    return this.fsdis;
059  }
060
061  public long getFileSize() {
062    return this.fileSize;
063  }
064
065  public HFileSystem getFileSystem() {
066    return this.hfs;
067  }
068
069  public boolean isPrimaryReplicaReader() {
070    return this.primaryReplicaReader;
071  }
072
073  public ReaderType getReaderType() {
074    return this.type;
075  }
076}