| /* |
| * 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.tinkerpop.gremlin.hadoop.process.computer; |
| |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.fs.FileSystem; |
| import org.apache.hadoop.fs.Path; |
| import org.apache.tinkerpop.gremlin.util.Gremlin; |
| import org.junit.Test; |
| |
| import java.io.File; |
| import java.util.stream.Stream; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertFalse; |
| import static org.junit.Assert.assertTrue; |
| |
| /** |
| * @author Marko A. Rodriguez (http://markorodriguez.com) |
| */ |
| public class AbstractHadoopGraphComputerTest { |
| |
| @Test |
| public void shouldCopyDirectoriesCorrectly() throws Exception { |
| final String hdfsName = this.getClass().getSimpleName() + "-hdfs"; |
| final String localName = this.getClass().getSimpleName() + "-local"; |
| final FileSystem fs = FileSystem.get(new Configuration()); |
| if (!new File(System.getProperty("java.io.tmpdir") + "/" + localName).exists()) |
| assertTrue(new File(System.getProperty("java.io.tmpdir") + "/" + localName).mkdir()); |
| File tempFile1 = new File(System.getProperty("java.io.tmpdir") + "/" + localName + "/test1.txt"); |
| File tempFile2 = new File(System.getProperty("java.io.tmpdir") + "/" + localName + "/test2.txt"); |
| assertTrue(tempFile1.createNewFile()); |
| assertTrue(tempFile2.createNewFile()); |
| assertTrue(tempFile1.exists()); |
| assertTrue(tempFile2.exists()); |
| if (fs.exists(new Path("target/" + hdfsName))) |
| assertTrue(fs.delete(new Path("target/" + hdfsName), true)); |
| fs.copyFromLocalFile(true, new Path(tempFile1.getAbsolutePath()), new Path("target/" + hdfsName + "/test1.dat")); |
| fs.copyFromLocalFile(true, new Path(tempFile2.getAbsolutePath()), new Path("target/" + hdfsName + "/test2.dat")); |
| assertTrue(fs.exists(new Path("target/" + hdfsName + "/test1.dat"))); |
| assertTrue(fs.exists(new Path("target/" + hdfsName + "/test2.dat"))); |
| assertTrue(fs.exists(new Path("target/" + hdfsName))); |
| assertTrue(fs.isDirectory(new Path("target/" + hdfsName))); |
| assertFalse(tempFile1.exists()); |
| assertFalse(tempFile2.exists()); |
| assertTrue(new File(System.getProperty("java.io.tmpdir") + "/" + localName).exists()); |
| assertTrue(new File(System.getProperty("java.io.tmpdir") + "/" + localName).delete()); |
| assertTrue(fs.exists(new Path("target/" + hdfsName + "/test1.dat"))); |
| assertTrue(fs.exists(new Path("target/" + hdfsName + "/test2.dat"))); |
| assertTrue(fs.exists(new Path("target/" + hdfsName))); |
| assertTrue(fs.isDirectory(new Path("target/" + hdfsName))); |
| ///// |
| final String hadoopGremlinLibsRemote = "hadoop-gremlin-" + Gremlin.version() + "-libs"; |
| final File localDirectory = new File(System.getProperty("java.io.tmpdir") + "/" + hadoopGremlinLibsRemote); |
| final File localLibDirectory = new File(localDirectory.getAbsolutePath() + "/" + hdfsName); |
| if (localLibDirectory.exists()) { |
| Stream.of(localLibDirectory.listFiles()).forEach(File::delete); |
| assertTrue(localLibDirectory.delete()); |
| } |
| assertFalse(localLibDirectory.exists()); |
| assertEquals(localLibDirectory, AbstractHadoopGraphComputer.copyDirectoryIfNonExistent(fs, "target/" + hdfsName)); |
| assertTrue(localLibDirectory.exists()); |
| assertTrue(localLibDirectory.isDirectory()); |
| assertEquals(2, Stream.of(localLibDirectory.listFiles()).filter(file -> file.getName().endsWith(".dat")).count()); |
| } |
| } |