| /** |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| package org.apache.hcatalog.pig; |
| |
| import java.io.File; |
| import java.io.IOException; |
| import java.util.ArrayList; |
| import java.util.Iterator; |
| import java.util.UUID; |
| |
| import org.apache.commons.lang.SystemUtils; |
| import org.apache.hadoop.hive.ql.CommandNeedRetryException; |
| import org.apache.hcatalog.HcatTestUtils; |
| import org.apache.hcatalog.mapreduce.HCatBaseTest; |
| import org.apache.pig.ExecType; |
| import org.apache.pig.PigServer; |
| import org.junit.Assert; |
| import org.junit.Test; |
| |
| /** |
| * This test checks the {@link HCatConstants#HCAT_PIG_STORER_EXTERNAL_LOCATION} that we can set in the |
| * UDFContext of {@link HCatStorer} so that it writes to the specified external location. |
| * |
| * Since {@link HCatStorer} does not allow extra parameters in the constructor, we use {@link HCatStorerWrapper} |
| * that always treats the last parameter as the external path. |
| */ |
| public class TestHCatStorerWrapper extends HCatBaseTest { |
| |
| private static final String INPUT_FILE_NAME = TEST_DATA_DIR + "/input.data"; |
| |
| @Test |
| public void testStoreExternalTableWithExternalDir() throws IOException, CommandNeedRetryException{ |
| |
| File tmpExternalDir = new File(SystemUtils.getJavaIoTmpDir(), UUID.randomUUID().toString()); |
| tmpExternalDir.deleteOnExit(); |
| |
| String part_val = "100"; |
| |
| driver.run("drop table junit_external"); |
| String createTable = "create external table junit_external(a int, b string) partitioned by (c string) stored as RCFILE"; |
| Assert.assertEquals(0, driver.run(createTable).getResponseCode()); |
| |
| int LOOP_SIZE = 3; |
| String[] inputData = new String[LOOP_SIZE*LOOP_SIZE]; |
| int k = 0; |
| for(int i = 1; i <= LOOP_SIZE; i++) { |
| String si = i + ""; |
| for(int j=1;j<=LOOP_SIZE;j++) { |
| inputData[k++] = si + "\t"+j; |
| } |
| } |
| HcatTestUtils.createTestDataFile(INPUT_FILE_NAME, inputData); |
| PigServer server = new PigServer(ExecType.LOCAL); |
| server.setBatchOn(); |
| logAndRegister(server, "A = load '"+INPUT_FILE_NAME+"' as (a:int, b:chararray);"); |
| logAndRegister(server, "store A into 'default.junit_external' using " + HCatStorerWrapper.class.getName() |
| + "('c=" + part_val + "','" + tmpExternalDir.getAbsolutePath() + "');"); |
| server.executeBatch(); |
| |
| Assert.assertTrue(tmpExternalDir.exists()); |
| Assert.assertTrue(new File(tmpExternalDir.getAbsoluteFile() + "/" + "part-m-00000").exists()); |
| |
| driver.run("select * from junit_external"); |
| ArrayList<String> res = new ArrayList<String>(); |
| driver.getResults(res); |
| driver.run("drop table junit_external"); |
| Iterator<String> itr = res.iterator(); |
| for(int i = 1; i <= LOOP_SIZE; i++) { |
| String si = i + ""; |
| for(int j=1;j<=LOOP_SIZE;j++) { |
| Assert.assertEquals( si + "\t" + j + "\t" + part_val,itr.next()); |
| } |
| } |
| Assert.assertFalse(itr.hasNext()); |
| |
| } |
| } |