| /* |
| * 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.wayang.java.operators; |
| |
| import static org.mockito.Mockito.mock; |
| import static org.mockito.Mockito.when; |
| |
| import java.io.File; |
| import java.io.IOException; |
| import java.net.URI; |
| import java.net.URISyntaxException; |
| import java.nio.file.Files; |
| import java.nio.file.Paths; |
| import java.util.Arrays; |
| import java.util.List; |
| import java.util.Locale; |
| import java.util.stream.Collectors; |
| import java.util.stream.Stream; |
| import org.apache.wayang.core.api.Configuration; |
| import org.apache.wayang.core.api.Job; |
| import org.apache.wayang.core.function.TransformationDescriptor; |
| import org.apache.wayang.core.optimizer.OptimizationContext; |
| import org.apache.wayang.core.plan.wayangplan.OutputSlot; |
| import org.apache.wayang.core.platform.ChannelInstance; |
| import org.apache.wayang.core.util.fs.LocalFileSystem; |
| import org.apache.wayang.java.channels.StreamChannel; |
| import org.apache.wayang.java.execution.JavaExecutor; |
| import org.apache.wayang.java.platform.JavaPlatform; |
| import org.junit.After; |
| import org.junit.Assert; |
| import org.junit.Before; |
| import org.junit.Test; |
| |
| /** |
| * Test suite for {@link JavaTextFileSink}. |
| */ |
| public class JavaTextFileSinkTest extends JavaExecutionOperatorTestBase { |
| |
| private Locale defaultLocale; |
| |
| /** |
| * In locales, where the decimal separator is not "." this rest would fail. |
| * Therefore we ensure it's run in a pre-defined locale and we make sure it's |
| * reset after the test. |
| */ |
| @Before |
| public void setupTest() { |
| defaultLocale = Locale.getDefault(); |
| Locale.setDefault(Locale.US); |
| } |
| |
| @After |
| public void teardownTest() { |
| Locale.setDefault(defaultLocale); |
| } |
| |
| @Test |
| public void testWritingLocalFile() throws IOException, URISyntaxException { |
| Configuration configuration = new Configuration(); |
| |
| final File tempDir = LocalFileSystem.findTempDir(); |
| final String targetUrl = LocalFileSystem.toURL(new File(tempDir, "testWritingLocalFile.txt")); |
| JavaTextFileSink<Float> sink = new JavaTextFileSink<>( |
| targetUrl, |
| new TransformationDescriptor<>( |
| f -> String.format("%.2f", f), |
| Float.class, String.class |
| ) |
| ); |
| |
| Job job = mock(Job.class); |
| when(job.getConfiguration()).thenReturn(configuration); |
| final JavaExecutor javaExecutor = (JavaExecutor) JavaPlatform.getInstance().createExecutor(job); |
| |
| StreamChannel.Instance inputChannelInstance = (StreamChannel.Instance) StreamChannel.DESCRIPTOR |
| .createChannel(mock(OutputSlot.class), configuration) |
| .createInstance(javaExecutor, mock(OptimizationContext.OperatorContext.class), 0); |
| inputChannelInstance.accept(Stream.of(1.123f, -0.1f, 3f)); |
| evaluate(sink, new ChannelInstance[]{inputChannelInstance}, new ChannelInstance[0]); |
| |
| |
| final List<String> lines = Files.lines(Paths.get(new URI(targetUrl))).collect(Collectors.toList()); |
| Assert.assertEquals( |
| Arrays.asList("1.12", "-0.10", "3.00"), |
| lines |
| ); |
| |
| } |
| |
| } |