Java tutorial
/** * 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 com.aliyun.fs.oss; import com.aliyun.fs.oss.nat.NativeOssFileSystem; import org.apache.commons.lang.StringUtils; import org.apache.hadoop.conf.Configuration; import org.junit.internal.AssumptionViolatedException; import java.io.IOException; import java.net.URI; /** * Utility class for Aliyun OSS Tests. */ public final class AliyunOSSTestUtils { private AliyunOSSTestUtils() { } /** * Create the test filesystem. * * If the test.fs.oss.name property is not set, * tests will fail. * * @param conf configuration * @return the FS * @throws IOException */ public static NativeOssFileSystem createTestFileSystem(Configuration conf) throws IOException { String fsname = conf.getTrimmed(TestAliyunOSSFileSystemContract.TEST_FS_OSS_NAME, ""); boolean liveTest = StringUtils.isNotEmpty(fsname); URI testURI = null; if (liveTest) { testURI = URI.create(fsname); liveTest = testURI.getScheme().equals("oss"); } if (!liveTest) { throw new AssumptionViolatedException( "No test filesystem in " + TestAliyunOSSFileSystemContract.TEST_FS_OSS_NAME); } conf.set("mapreduce.job.run-local", "true"); conf.set("fs.oss.buffer.dirs", "/tmp"); NativeOssFileSystem ossfs = new NativeOssFileSystem(); ossfs.initialize(testURI, conf); return ossfs; } /** * Generate unique test path for multiple user tests. * * @return root test path */ public static String generateUniqueTestPath() { String testUniqueForkId = System.getProperty("test.unique.fork.id"); return testUniqueForkId == null ? "/test" : "/" + testUniqueForkId + "/test"; } }