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21 package org.apache.hadoop.hbase.filter;
22
23 import org.apache.hadoop.hbase.KeyValue;
24 import org.apache.hadoop.hbase.util.Bytes;
25
26 import java.io.DataInput;
27 import java.io.DataOutput;
28 import java.io.IOException;
29 import java.util.List;
30 import java.util.ArrayList;
31
32 import com.google.common.base.Preconditions;
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39
40 public class InclusiveStopFilter extends FilterBase {
41 private byte [] stopRowKey;
42 private boolean done = false;
43
44 public InclusiveStopFilter() {
45 super();
46 }
47
48 public InclusiveStopFilter(final byte [] stopRowKey) {
49 this.stopRowKey = stopRowKey;
50 }
51
52 public byte[] getStopRowKey() {
53 return this.stopRowKey;
54 }
55
56 @Override
57 public ReturnCode filterKeyValue(KeyValue v) {
58 if (done) return ReturnCode.NEXT_ROW;
59 return ReturnCode.INCLUDE;
60 }
61
62 public boolean filterRowKey(byte[] buffer, int offset, int length) {
63 if (buffer == null) {
64
65 if (this.stopRowKey == null) {
66 return true;
67 }
68 return false;
69 }
70
71 int cmp = Bytes.compareTo(stopRowKey, 0, stopRowKey.length,
72 buffer, offset, length);
73
74 if(cmp < 0) {
75 done = true;
76 }
77 return done;
78 }
79
80 public boolean filterAllRemaining() {
81 return done;
82 }
83
84 public static Filter createFilterFromArguments (ArrayList<byte []> filterArguments) {
85 Preconditions.checkArgument(filterArguments.size() == 1,
86 "Expected 1 but got: %s", filterArguments.size());
87 byte [] stopRowKey = ParseFilter.removeQuotesFromByteArray(filterArguments.get(0));
88 return new InclusiveStopFilter(stopRowKey);
89 }
90
91 public void write(DataOutput out) throws IOException {
92 Bytes.writeByteArray(out, this.stopRowKey);
93 }
94
95 public void readFields(DataInput in) throws IOException {
96 this.stopRowKey = Bytes.readByteArray(in);
97 }
98
99 @Override
100 public String toString() {
101 return this.getClass().getSimpleName() + " " + Bytes.toStringBinary(this.stopRowKey);
102 }
103 }