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 gobblin.data.management.copy.extractor; import gobblin.configuration.ConfigurationKeys; import gobblin.data.management.copy.CopyConfiguration; import gobblin.data.management.copy.CopyContext; import gobblin.data.management.copy.CopyableFile; import gobblin.data.management.copy.FileAwareInputStream; import gobblin.data.management.copy.PreserveAttributes; import java.io.IOException; import java.util.Properties; import org.apache.commons.io.IOUtils; import org.apache.hadoop.conf.Configuration; import org.apache.hadoop.fs.FileStatus; import org.apache.hadoop.fs.FileSystem; import org.apache.hadoop.fs.Path; import org.testng.Assert; import org.testng.annotations.Test; public class InputStreamExtractorTest { @Test public void testReadRecord() throws Exception { CopyableFile file = getTestCopyableFile("inputStreamExtractorTest/first.txt"); FileAwareInputStreamExtractor extractor = new FileAwareInputStreamExtractor( FileSystem.getLocal(new Configuration()), file); FileAwareInputStream fileAwareInputStream = extractor.readRecord(null); Assert.assertEquals(fileAwareInputStream.getFile().getOrigin().getPath(), file.getOrigin().getPath()); Assert.assertEquals(IOUtils.toString(fileAwareInputStream.getInputStream()), "first"); Assert.assertNull(extractor.readRecord(null)); } private CopyableFile getTestCopyableFile(String resourcePath) throws IOException { String filePath = getClass().getClassLoader().getResource(resourcePath).getFile(); FileStatus status = new FileStatus(0l, false, 0, 0l, 0l, new Path(filePath)); Properties properties = new Properties(); properties.setProperty(ConfigurationKeys.DATA_PUBLISHER_FINAL_DIR, "/publisher"); return CopyableFile.fromOriginAndDestination(FileSystem.getLocal(new Configuration()), status, new Path("/destination"), CopyConfiguration.builder(FileSystem.getLocal(new Configuration()), properties) .preserve(PreserveAttributes.fromMnemonicString("")).build()) .build(); } }