org.apache.beam.runners.apex.ApexYarnLauncherTest.java Source code

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Here is the source code for org.apache.beam.runners.apex.ApexYarnLauncherTest.java

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/*
 * 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.beam.runners.apex;

import static org.hamcrest.Matchers.containsString;
import static org.hamcrest.Matchers.not;
import static org.junit.Assert.assertThat;

import com.datatorrent.api.Attribute;
import com.datatorrent.api.Attribute.AttributeMap;
import com.datatorrent.api.Context.DAGContext;
import com.datatorrent.api.DAG;
import com.datatorrent.api.StreamingApplication;
import java.io.File;
import java.net.URI;
import java.nio.file.FileSystem;
import java.nio.file.FileSystems;
import java.nio.file.Files;
import java.util.Collections;
import java.util.List;
import java.util.Map;
import java.util.Properties;
import java.util.jar.JarFile;
import org.apache.apex.api.EmbeddedAppLauncher;
import org.apache.apex.api.Launcher;
import org.apache.apex.api.Launcher.AppHandle;
import org.apache.apex.api.Launcher.LaunchMode;
import org.apache.commons.io.FileUtils;
import org.apache.hadoop.conf.Configuration;
import org.junit.Assert;
import org.junit.Test;

/**
 * Test for dependency resolution for pipeline execution on YARN.
 */
public class ApexYarnLauncherTest {

    @Test
    public void testGetYarnDeployDependencies() throws Exception {
        List<File> deps = ApexYarnLauncher.getYarnDeployDependencies();
        String depsToString = deps.toString();
        // the beam dependencies are not present as jar when running within the Maven build reactor
        //assertThat(depsToString, containsString("beam-runners-core-"));
        //assertThat(depsToString, containsString("beam-runners-apex-"));
        assertThat(depsToString, containsString("apex-common-"));
        assertThat(depsToString, not(containsString("hadoop-")));
        assertThat(depsToString, not(containsString("zookeeper-")));
    }

    @Test
    public void testProxyLauncher() throws Exception {
        // use the embedded launcher to build the DAG only
        EmbeddedAppLauncher<?> embeddedLauncher = Launcher.getLauncher(LaunchMode.EMBEDDED);

        StreamingApplication app = new StreamingApplication() {
            @Override
            public void populateDAG(DAG dag, Configuration conf) {
                dag.setAttribute(DAGContext.APPLICATION_NAME, "DummyApp");
            }
        };

        Configuration conf = new Configuration(false);
        DAG dag = embeddedLauncher.prepareDAG(app, conf);
        Attribute.AttributeMap launchAttributes = new Attribute.AttributeMap.DefaultAttributeMap();
        Properties configProperties = new Properties();
        ApexYarnLauncher launcher = new ApexYarnLauncher();
        launcher.launchApp(new MockApexYarnLauncherParams(dag, launchAttributes, configProperties));
    }

    private static class MockApexYarnLauncherParams extends ApexYarnLauncher.LaunchParams {
        private static final long serialVersionUID = 1L;

        public MockApexYarnLauncherParams(DAG dag, AttributeMap launchAttributes, Properties properties) {
            super(dag, launchAttributes, properties);
        }

        @Override
        protected Launcher<?> getApexLauncher() {
            return new Launcher<AppHandle>() {
                @Override
                public AppHandle launchApp(StreamingApplication application, Configuration configuration,
                        AttributeMap launchParameters) throws org.apache.apex.api.Launcher.LauncherException {
                    EmbeddedAppLauncher<?> embeddedLauncher = Launcher.getLauncher(LaunchMode.EMBEDDED);
                    DAG dag = embeddedLauncher.getDAG();
                    application.populateDAG(dag, new Configuration(false));
                    String appName = dag.getValue(DAGContext.APPLICATION_NAME);
                    Assert.assertEquals("DummyApp", appName);
                    return new AppHandle() {
                        @Override
                        public boolean isFinished() {
                            return true;
                        }

                        @Override
                        public void shutdown(org.apache.apex.api.Launcher.ShutdownMode arg0) {
                        }
                    };
                }
            };
        }

    }

    @Test
    public void testCreateJar() throws Exception {
        File baseDir = new File("./target/testCreateJar");
        File srcDir = new File(baseDir, "src");
        String file1 = "file1";
        FileUtils.forceMkdir(srcDir);
        FileUtils.write(new File(srcDir, file1), "file1");

        File jarFile = new File(baseDir, "test.jar");
        ApexYarnLauncher.createJar(srcDir, jarFile);
        Assert.assertTrue("exists: " + jarFile, jarFile.exists());
        URI uri = URI.create("jar:" + jarFile.toURI());
        final Map<String, ?> env = Collections.singletonMap("create", "true");
        try (final FileSystem zipfs = FileSystems.newFileSystem(uri, env);) {
            Assert.assertTrue("manifest", Files.isRegularFile(zipfs.getPath(JarFile.MANIFEST_NAME)));
            Assert.assertTrue("file1", Files.isRegularFile(zipfs.getPath(file1)));
        }

    }
}