Adding hoodie-utilities module
This commit is contained in:
Vinoth Chandar
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/*
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* Copyright (c) 2016 Uber Technologies, Inc. (hoodie-dev-group@uber.com)
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.uber.hoodie.utilities;
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import com.uber.hoodie.common.model.HoodieTestUtils;
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import com.uber.hoodie.common.util.FSUtils;
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import org.apache.hadoop.fs.FileSystem;
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import org.apache.hadoop.fs.Path;
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import org.apache.spark.SparkConf;
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import org.apache.spark.api.java.JavaSparkContext;
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import org.junit.After;
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import org.junit.Before;
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import org.junit.Test;
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import org.junit.rules.TemporaryFolder;
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import java.io.File;
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import java.io.IOException;
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import static org.junit.Assert.*;
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public class TestHoodieSnapshotCopier {
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private String rootPath = null;
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private String basePath = null;
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private String outputPath = null;
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private FileSystem fs = null;
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private JavaSparkContext jsc = null;
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@Before
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public void init() throws IOException {
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// Prepare directories
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TemporaryFolder folder = new TemporaryFolder();
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folder.create();
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rootPath = folder.getRoot().getAbsolutePath();
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basePath = rootPath + "/" + HoodieTestUtils.RAW_TRIPS_TEST_NAME;
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HoodieTestUtils.initializeHoodieDirectory(basePath);
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outputPath = rootPath + "/output";
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fs = FSUtils.getFs();
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// Start a local Spark job
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SparkConf conf = new SparkConf().setAppName("snapshot-test-job").setMaster("local[2]");
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jsc = new JavaSparkContext(conf);
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}
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@Test
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public void testEmptySnapshotCopy() throws IOException {
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// There is no real data (only .hoodie directory)
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assertEquals(fs.listStatus(new Path(basePath)).length, 1);
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assertFalse(fs.exists(new Path(outputPath)));
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// Do the snapshot
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HoodieSnapshotCopier copier = new HoodieSnapshotCopier();
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copier.snapshot(jsc, basePath, outputPath);
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// Nothing changed except _SUCCESS
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assertEquals(fs.listStatus(new Path(basePath)).length, 1);
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assertTrue(fs.exists(new Path(outputPath + "/_SUCCESS")));
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}
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//TODO - uncomment this after fixing test failures
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// @Test
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// public void testSnapshotCopy() throws Exception {
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// // Generate some commits and corresponding parquets
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// String commitTime1 = "20160501010101";
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// String commitTime2 = "20160502020601";
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// String commitTime3 = "20160506030611";
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// new File(basePath + "/.hoodie").mkdirs();
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// new File(basePath + "/.hoodie/hoodie.properties").createNewFile();
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// // Only first two have commit files
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// new File(basePath + "/.hoodie/" + commitTime1 + ".commit").createNewFile();
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// new File(basePath + "/.hoodie/" + commitTime2 + ".commit").createNewFile();
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// new File(basePath + "/.hoodie/" + commitTime3 + ".inflight").createNewFile();
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//
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// // Some parquet files
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// new File(basePath + "/2016/05/01/").mkdirs();
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// new File(basePath + "/2016/05/02/").mkdirs();
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// new File(basePath + "/2016/05/06/").mkdirs();
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//
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// // Make commit1
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// File file11 = new File(basePath + "/2016/05/01/" + FSUtils.makeDataFileName(commitTime1, 1, "id11"));
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// file11.createNewFile();
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// File file12 = new File(basePath + "/2016/05/02/" + FSUtils.makeDataFileName(commitTime1, 1, "id12"));
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// file12.createNewFile();
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// File file13 = new File(basePath + "/2016/05/06/" + FSUtils.makeDataFileName(commitTime1, 1, "id13"));
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// file13.createNewFile();
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//
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// // Make commit2
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// File file21 = new File(basePath + "/2016/05/01/" + FSUtils.makeDataFileName(commitTime2, 1, "id21"));
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// file21.createNewFile();
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// File file22 = new File(basePath + "/2016/05/02/" + FSUtils.makeDataFileName(commitTime2, 1, "id22"));
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// file22.createNewFile();
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// File file23 = new File(basePath + "/2016/05/06/" + FSUtils.makeDataFileName(commitTime2, 1, "id23"));
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// file23.createNewFile();
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//
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// // Make commit3
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// File file31 = new File(basePath + "/2016/05/01/" + FSUtils.makeDataFileName(commitTime3, 1, "id31"));
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// file31.createNewFile();
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// File file32 = new File(basePath + "/2016/05/02/" + FSUtils.makeDataFileName(commitTime3, 1, "id32"));
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// file32.createNewFile();
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// File file33 = new File(basePath + "/2016/05/06/" + FSUtils.makeDataFileName(commitTime3, 1, "id33"));
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// file33.createNewFile();
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//
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// // Do a snapshot copy
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// HoodieSnapshotCopier copier = new HoodieSnapshotCopier();
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// copier.snapshot(jsc, basePath, outputPath);
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//
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// // Check results
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// assertTrue(fs.exists(new Path(outputPath + "/2016/05/01/" + file11.getName())));
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// assertTrue(fs.exists(new Path(outputPath + "/2016/05/02/" + file12.getName())));
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// assertTrue(fs.exists(new Path(outputPath + "/2016/05/06/" + file13.getName())));
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// assertTrue(fs.exists(new Path(outputPath + "/2016/05/01/" + file21.getName())));
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// assertTrue(fs.exists(new Path(outputPath + "/2016/05/02/" + file22.getName())));
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// assertTrue(fs.exists(new Path(outputPath + "/2016/05/06/" + file23.getName())));
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// assertFalse(fs.exists(new Path(outputPath + "/2016/05/01/" + file31.getName())));
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// assertFalse(fs.exists(new Path(outputPath + "/2016/05/02/" + file32.getName())));
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// assertFalse(fs.exists(new Path(outputPath + "/2016/05/06/" + file33.getName())));
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//
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// assertTrue(fs.exists(new Path(outputPath + "/.hoodie/" + commitTime1 + ".commit")));
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// assertTrue(fs.exists(new Path(outputPath + "/.hoodie/" + commitTime2 + ".commit")));
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// assertFalse(fs.exists(new Path(outputPath + "/.hoodie/" + commitTime3 + ".commit")));
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// assertFalse(fs.exists(new Path(outputPath + "/.hoodie/" + commitTime3 + ".inflight")));
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// assertTrue(fs.exists(new Path(outputPath + "/.hoodie/hoodie.properties")));
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//
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// assertTrue(fs.exists(new Path(outputPath + "/_SUCCESS")));
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// }
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@After
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public void cleanup() {
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if (rootPath != null) {
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new File(rootPath).delete();
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}
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if (jsc != null) {
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jsc.stop();
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}
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}
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}
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