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
019 package org.apache.hadoop.record;
020
021 import java.io.IOException;
022 import java.util.TreeMap;
023 import java.util.ArrayList;
024 import java.io.DataOutput;
025 import java.io.DataOutputStream;
026 import java.io.OutputStream;
027
028 import org.apache.hadoop.classification.InterfaceAudience;
029 import org.apache.hadoop.classification.InterfaceStability;
030
031 /**
032 * @deprecated Replaced by <a href="http://hadoop.apache.org/avro/">Avro</a>.
033 */
034 @Deprecated
035 @InterfaceAudience.Public
036 @InterfaceStability.Stable
037 public 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 }