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 */ 018package org.apache.hadoop.hbase.filter; 019 020import static org.junit.Assert.*; 021 022import org.apache.hadoop.hbase.HBaseClassTestRule; 023import org.apache.hadoop.hbase.KeyValueUtil; 024import org.apache.hadoop.hbase.testclassification.FilterTests; 025import org.apache.hadoop.hbase.testclassification.SmallTests; 026import org.apache.hadoop.hbase.util.Bytes; 027import org.junit.Before; 028import org.junit.ClassRule; 029import org.junit.Test; 030import org.junit.experimental.categories.Category; 031 032@Category({FilterTests.class, SmallTests.class}) 033public class TestPrefixFilter { 034 035 @ClassRule 036 public static final HBaseClassTestRule CLASS_RULE = 037 HBaseClassTestRule.forClass(TestPrefixFilter.class); 038 039 Filter mainFilter; 040 static final char FIRST_CHAR = 'a'; 041 static final char LAST_CHAR = 'e'; 042 static final String HOST_PREFIX = "org.apache.site-"; 043 static final byte [] GOOD_BYTES = Bytes.toBytes("abc"); 044 045 @Before 046 public void setUp() throws Exception { 047 this.mainFilter = new PrefixFilter(Bytes.toBytes(HOST_PREFIX)); 048 } 049 050 @Test 051 public void testPrefixOnRow() throws Exception { 052 prefixRowTests(mainFilter); 053 } 054 055 @Test 056 public void testPrefixOnRowInsideWhileMatchRow() throws Exception { 057 prefixRowTests(new WhileMatchFilter(this.mainFilter), true); 058 } 059 060 @Test 061 public void testSerialization() throws Exception { 062 // Decompose mainFilter to bytes. 063 byte[] buffer = mainFilter.toByteArray(); 064 065 // Recompose filter. 066 Filter newFilter = PrefixFilter.parseFrom(buffer); 067 068 // Ensure the serialization preserved the filter by running all test. 069 prefixRowTests(newFilter); 070 } 071 072 private void prefixRowTests(Filter filter) throws Exception { 073 prefixRowTests(filter, false); 074 } 075 076 private void prefixRowTests(Filter filter, boolean lastFilterAllRemaining) 077 throws Exception { 078 for (char c = FIRST_CHAR; c <= LAST_CHAR; c++) { 079 byte [] t = createRow(c); 080 assertFalse("Failed with character " + c, 081 filter.filterRowKey(KeyValueUtil.createFirstOnRow(t))); 082 assertFalse(filter.filterAllRemaining()); 083 } 084 String yahooSite = "com.yahoo.www"; 085 byte [] yahooSiteBytes = Bytes.toBytes(yahooSite); 086 assertTrue("Failed with character " + 087 yahooSite, filter.filterRowKey(KeyValueUtil.createFirstOnRow(yahooSiteBytes))); 088 assertEquals(filter.filterAllRemaining(), lastFilterAllRemaining); 089 } 090 091 private byte [] createRow(final char c) { 092 return Bytes.toBytes(HOST_PREFIX + Character.toString(c)); 093 } 094 095} 096