1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20 package org.apache.hadoop.hbase.filter;
21
22 import java.io.ByteArrayInputStream;
23 import java.io.ByteArrayOutputStream;
24 import java.io.DataInputStream;
25 import java.io.DataOutputStream;
26
27 import org.apache.hadoop.hbase.KeyValue;
28 import org.apache.hadoop.hbase.util.Bytes;
29
30 import junit.framework.TestCase;
31
32
33
34
35
36 public class TestColumnPaginationFilter extends TestCase
37 {
38 private static final byte[] ROW = Bytes.toBytes("row_1_test");
39 private static final byte[] COLUMN_FAMILY = Bytes.toBytes("test");
40 private static final byte[] VAL_1 = Bytes.toBytes("a");
41 private static final byte [] COLUMN_QUALIFIER = Bytes.toBytes("foo");
42
43 private Filter columnPaginationFilter;
44
45 @Override
46 protected void setUp() throws Exception {
47 super.setUp();
48 columnPaginationFilter = getColumnPaginationFilter();
49
50 }
51 private Filter getColumnPaginationFilter() {
52 return new ColumnPaginationFilter(1,0);
53 }
54
55 private Filter serializationTest(Filter filter) throws Exception {
56 ByteArrayOutputStream stream = new ByteArrayOutputStream();
57 DataOutputStream out = new DataOutputStream(stream);
58 filter.write(out);
59 out.close();
60 byte[] buffer = stream.toByteArray();
61
62 DataInputStream in =
63 new DataInputStream(new ByteArrayInputStream(buffer));
64 Filter newFilter = new ColumnPaginationFilter();
65 newFilter.readFields(in);
66
67 return newFilter;
68 }
69
70
71
72
73
74
75
76
77
78 private void basicFilterTests(ColumnPaginationFilter filter) throws Exception
79 {
80 KeyValue kv = new KeyValue(ROW, COLUMN_FAMILY, COLUMN_QUALIFIER, VAL_1);
81 assertTrue("basicFilter1", filter.filterKeyValue(kv) == Filter.ReturnCode.INCLUDE);
82 }
83
84
85
86
87
88 public void testSerialization() throws Exception {
89 Filter newFilter = serializationTest(columnPaginationFilter);
90 basicFilterTests((ColumnPaginationFilter)newFilter);
91 }
92
93
94 }