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 */
018
019package org.apache.hadoop.record;
020
021import java.io.IOException;
022import java.util.TreeMap;
023import java.util.ArrayList;
024import java.io.DataOutput;
025import java.io.DataOutputStream;
026import java.io.OutputStream;
027
028import org.apache.hadoop.classification.InterfaceAudience;
029import org.apache.hadoop.classification.InterfaceStability;
030
031/**
032 * @deprecated Replaced by <a href="https://hadoop.apache.org/avro/">Avro</a>.
033 */
034@Deprecated
035@InterfaceAudience.Public
036@InterfaceStability.Stable
037public class BinaryRecordOutput implements RecordOutput {
038    
039  private DataOutput out;
040    
041  private BinaryRecordOutput() {}
042    
043  private void setDataOutput(DataOutput out) {
044    this.out = out;
045  }
046    
047  private static ThreadLocal bOut = new ThreadLocal() {
048      protected synchronized Object initialValue() {
049        return new BinaryRecordOutput();
050      }
051    };
052    
053  /**
054   * Get a thread-local record output for the supplied DataOutput.
055   * @param out data output stream
056   * @return binary record output corresponding to the supplied DataOutput.
057   */
058  public static BinaryRecordOutput get(DataOutput out) {
059    BinaryRecordOutput bout = (BinaryRecordOutput) bOut.get();
060    bout.setDataOutput(out);
061    return bout;
062  }
063    
064  /** Creates a new instance of BinaryRecordOutput */
065  public BinaryRecordOutput(OutputStream out) {
066    this.out = new DataOutputStream(out);
067  }
068    
069  /** Creates a new instance of BinaryRecordOutput */
070  public BinaryRecordOutput(DataOutput out) {
071    this.out = out;
072  }
073    
074    
075  public void writeByte(byte b, String tag) throws IOException {
076    out.writeByte(b);
077  }
078    
079  public void writeBool(boolean b, String tag) throws IOException {
080    out.writeBoolean(b);
081  }
082    
083  public void writeInt(int i, String tag) throws IOException {
084    Utils.writeVInt(out, i);
085  }
086    
087  public void writeLong(long l, String tag) throws IOException {
088    Utils.writeVLong(out, l);
089  }
090    
091  public void writeFloat(float f, String tag) throws IOException {
092    out.writeFloat(f);
093  }
094    
095  public void writeDouble(double d, String tag) throws IOException {
096    out.writeDouble(d);
097  }
098    
099  public void writeString(String s, String tag) throws IOException {
100    Utils.toBinaryString(out, s);
101  }
102    
103  public void writeBuffer(Buffer buf, String tag)
104    throws IOException {
105    byte[] barr = buf.get();
106    int len = buf.getCount();
107    Utils.writeVInt(out, len);
108    out.write(barr, 0, len);
109  }
110    
111  public void startRecord(Record r, String tag) throws IOException {}
112    
113  public void endRecord(Record r, String tag) throws IOException {}
114    
115  public void startVector(ArrayList v, String tag) throws IOException {
116    writeInt(v.size(), tag);
117  }
118    
119  public void endVector(ArrayList v, String tag) throws IOException {}
120    
121  public void startMap(TreeMap v, String tag) throws IOException {
122    writeInt(v.size(), tag);
123  }
124    
125  public void endMap(TreeMap v, String tag) throws IOException {}
126    
127}