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.rsgroup;
019
020import java.io.BufferedReader;
021import java.io.File;
022import java.io.FileOutputStream;
023import java.io.FileReader;
024import java.io.IOException;
025import java.io.PrintWriter;
026import org.apache.hadoop.hbase.HBaseClassTestRule;
027import org.apache.hadoop.hbase.HBaseTestingUtil;
028import org.apache.hadoop.hbase.TableName;
029import org.apache.hadoop.hbase.rsgroup.RSGroupInfoManagerImpl.RSGroupMappingScript;
030import org.apache.hadoop.hbase.testclassification.RSGroupTests;
031import org.apache.hadoop.hbase.testclassification.SmallTests;
032import org.junit.After;
033import org.junit.Assert;
034import org.junit.Before;
035import org.junit.BeforeClass;
036import org.junit.ClassRule;
037import org.junit.Test;
038import org.junit.experimental.categories.Category;
039import org.slf4j.Logger;
040import org.slf4j.LoggerFactory;
041
042@Category({ RSGroupTests.class, SmallTests.class })
043public class TestRSGroupMappingScript {
044
045  @ClassRule
046  public static final HBaseClassTestRule CLASS_RULE =
047    HBaseClassTestRule.forClass(TestRSGroupMappingScript.class);
048  private static final Logger LOG = LoggerFactory.getLogger(TestRSGroupMappingScript.class);
049
050  private static final HBaseTestingUtil UTIL = new HBaseTestingUtil();
051  private File script;
052
053  @BeforeClass
054  public static void setupScript() throws Exception {
055    String currentDir = new File("").getAbsolutePath();
056    UTIL.getConfiguration().set(RSGroupInfoManagerImpl.RSGroupMappingScript.RS_GROUP_MAPPING_SCRIPT,
057      currentDir + "/rsgroup_table_mapping.sh");
058  }
059
060  @Before
061  public void setup() throws Exception {
062    script = new File(UTIL.getConfiguration().get(RSGroupMappingScript.RS_GROUP_MAPPING_SCRIPT));
063    if (!script.createNewFile()) {
064      throw new IOException("Can't create script");
065    }
066
067    PrintWriter pw = new PrintWriter(new FileOutputStream(script));
068    try {
069      pw.println("#!/bin/bash");
070      pw.println("namespace=$1");
071      pw.println("tablename=$2");
072      pw.println("if [[ $namespace == test ]]; then");
073      pw.println("  echo test");
074      pw.println("elif [[ $tablename == *foo* ]]; then");
075      pw.println("  echo other");
076      pw.println("else");
077      pw.println("  echo default");
078      pw.println("fi");
079      pw.flush();
080    } finally {
081      pw.close();
082    }
083    boolean executable = script.setExecutable(true);
084    LOG.info("Created " + script + ", executable=" + executable);
085    verifyScriptContent(script);
086  }
087
088  private void verifyScriptContent(File file) throws Exception {
089    BufferedReader reader = new BufferedReader(new FileReader(file));
090    String line;
091    while ((line = reader.readLine()) != null) {
092      LOG.info(line);
093    }
094  }
095
096  @Test
097  public void testScript() throws Exception {
098    RSGroupMappingScript script = new RSGroupMappingScript(UTIL.getConfiguration());
099    TableName testNamespace = TableName.valueOf("test", "should_be_in_test");
100    String rsgroup =
101      script.getRSGroup(testNamespace.getNamespaceAsString(), testNamespace.getQualifierAsString());
102    Assert.assertEquals("test", rsgroup);
103
104    TableName otherName = TableName.valueOf("whatever", "oh_foo_should_be_in_other");
105    rsgroup = script.getRSGroup(otherName.getNamespaceAsString(), otherName.getQualifierAsString());
106    Assert.assertEquals("other", rsgroup);
107
108    TableName defaultName = TableName.valueOf("nono", "should_be_in_default");
109    rsgroup =
110      script.getRSGroup(defaultName.getNamespaceAsString(), defaultName.getQualifierAsString());
111    Assert.assertEquals("default", rsgroup);
112  }
113
114  @After
115  public void teardown() throws Exception {
116    if (script.exists()) {
117      script.delete();
118    }
119  }
120
121}