Java tutorial
/* * The Alluxio Open Foundation licenses this work under the Apache License, version 2.0 * (the "License"). You may not use this work except in compliance with the License, which is * available at www.apache.org/licenses/LICENSE-2.0 * * This software is distributed on an "AS IS" basis, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, * either express or implied, as more fully set forth in the License. * * See the NOTICE file distributed with this work for information regarding copyright ownership. */ package alluxio.client.hadoop; import alluxio.conf.PropertyKey; import alluxio.conf.ServerConfiguration; import alluxio.hadoop.FileSystem; import alluxio.hadoop.HadoopConfigurationUtils; import alluxio.security.authentication.AuthType; import alluxio.testutils.LocalAlluxioClusterResource; import org.apache.hadoop.conf.Configuration; import org.apache.hadoop.fs.FSDataOutputStream; import org.apache.hadoop.fs.Path; import org.apache.hadoop.fs.permission.FsPermission; import org.junit.BeforeClass; import org.junit.ClassRule; import org.junit.Test; import java.net.URI; /** * Integration tests for {@link FileSystem}. */ public class FileSystemIntegrationTest { @ClassRule public static LocalAlluxioClusterResource sLocalAlluxioClusterResource = new LocalAlluxioClusterResource.Builder() .setProperty(PropertyKey.SECURITY_AUTHENTICATION_TYPE, AuthType.SIMPLE.getAuthName()) .setProperty(PropertyKey.SECURITY_AUTHORIZATION_PERMISSION_ENABLED, "true").build(); private static org.apache.hadoop.fs.FileSystem sTFS; @BeforeClass public static void beforeClass() throws Exception { Configuration conf = new Configuration(); conf.set("fs.alluxio.impl", FileSystem.class.getName()); URI uri = URI.create(sLocalAlluxioClusterResource.get().getMasterURI()); sTFS = org.apache.hadoop.fs.FileSystem.get(uri, HadoopConfigurationUtils.mergeAlluxioConfiguration(conf, ServerConfiguration.global())); } @Test public void closeFileSystem() throws Exception { Path file = new Path("/createfile"); FsPermission permission = FsPermission.createImmutable((short) 0666); FSDataOutputStream o = sTFS.create(file, permission, false /* ignored */, 10 /* ignored */, (short) 1 /* ignored */, 512 /* ignored */, null /* ignored */); o.writeBytes("Test Bytes"); o.close(); // with mark of delete-on-exit, the close method will try to delete it sTFS.deleteOnExit(file); sTFS.close(); } }