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18 package org.apache.hadoop.hbase.codec;
19
20 import java.io.IOException;
21 import java.io.InputStream;
22 import java.io.OutputStream;
23
24 import org.apache.commons.io.IOUtils;
25 import org.apache.hadoop.classification.InterfaceAudience;
26 import org.apache.hadoop.hbase.Cell;
27 import org.apache.hadoop.hbase.CellUtil;
28 import org.apache.hadoop.hbase.util.Bytes;
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35 @InterfaceAudience.Private
36 public class CellCodecWithTags implements Codec {
37 static class CellEncoder extends BaseEncoder {
38 CellEncoder(final OutputStream out) {
39 super(out);
40 }
41
42 @Override
43 public void write(Cell cell) throws IOException {
44 checkFlushed();
45
46 write(cell.getRowArray(), cell.getRowOffset(), cell.getRowLength());
47
48 write(cell.getFamilyArray(), cell.getFamilyOffset(), cell.getFamilyLength());
49
50 write(cell.getQualifierArray(), cell.getQualifierOffset(), cell.getQualifierLength());
51
52 this.out.write(Bytes.toBytes(cell.getTimestamp()));
53
54 this.out.write(cell.getTypeByte());
55
56 write(cell.getValueArray(), cell.getValueOffset(), cell.getValueLength());
57
58 write(cell.getTagsArray(), cell.getTagsOffset(), cell.getTagsLengthUnsigned());
59
60 this.out.write(Bytes.toBytes(cell.getMvccVersion()));
61 }
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71 private void write(final byte[] bytes, final int offset, final int length) throws IOException {
72 this.out.write(Bytes.toBytes(length));
73 this.out.write(bytes, offset, length);
74 }
75 }
76
77 static class CellDecoder extends BaseDecoder {
78 public CellDecoder(final InputStream in) {
79 super(in);
80 }
81
82 protected Cell parseCell() throws IOException {
83 byte[] row = readByteArray(this.in);
84 byte[] family = readByteArray(in);
85 byte[] qualifier = readByteArray(in);
86 byte[] longArray = new byte[Bytes.SIZEOF_LONG];
87 IOUtils.readFully(this.in, longArray);
88 long timestamp = Bytes.toLong(longArray);
89 byte type = (byte) this.in.read();
90 byte[] value = readByteArray(in);
91 byte[] tags = readByteArray(in);
92
93 byte[] memstoreTSArray = new byte[Bytes.SIZEOF_LONG];
94 IOUtils.readFully(this.in, memstoreTSArray);
95 long memstoreTS = Bytes.toLong(memstoreTSArray);
96 return CellUtil.createCell(row, family, qualifier, timestamp, type, value, tags, memstoreTS);
97 }
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103 private byte[] readByteArray(final InputStream in) throws IOException {
104 byte[] intArray = new byte[Bytes.SIZEOF_INT];
105 IOUtils.readFully(in, intArray);
106 int length = Bytes.toInt(intArray);
107 byte[] bytes = new byte[length];
108 IOUtils.readFully(in, bytes);
109 return bytes;
110 }
111 }
112
113 @Override
114 public Decoder getDecoder(InputStream is) {
115 return new CellDecoder(is);
116 }
117
118 @Override
119 public Encoder getEncoder(OutputStream os) {
120 return new CellEncoder(os);
121 }
122 }