org.apache.metron.common.dsl.functions.resolver.ClasspathFunctionResolverIntegrationTest.java Source code

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Here is the source code for org.apache.metron.common.dsl.functions.resolver.ClasspathFunctionResolverIntegrationTest.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.metron.common.dsl.functions.resolver;

import com.google.common.collect.Lists;
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.apache.hadoop.hdfs.MiniDFSCluster;
import org.apache.hadoop.yarn.conf.YarnConfiguration;
import org.apache.metron.common.dsl.Context;
import org.apache.metron.common.dsl.functions.resolver.ClasspathFunctionResolver;
import org.apache.metron.integration.components.MRComponent;
import org.junit.AfterClass;
import org.junit.Assert;
import org.junit.BeforeClass;
import org.junit.Test;

import java.io.File;
import java.io.IOException;
import java.util.HashSet;
import java.util.Properties;

import static org.apache.metron.common.dsl.functions.resolver.ClasspathFunctionResolver.Config.STELLAR_VFS_PATHS;

public class ClasspathFunctionResolverIntegrationTest {
    static MRComponent component;
    static Configuration configuration;

    @BeforeClass
    public static void setup() {
        component = new MRComponent().withBasePath("target");
        component.start();
        configuration = component.getConfiguration();

        try {
            FileSystem fs = FileSystem.newInstance(configuration);
            fs.mkdirs(new Path("/classpath-resources"));
            fs.copyFromLocalFile(new Path("src/test/classpath-resources/custom-1.0-SNAPSHOT.jar"),
                    new Path("/classpath-resources"));
        } catch (IOException e) {
            throw new RuntimeException("Unable to start cluster", e);
        }
    }

    @AfterClass
    public static void teardown() {
        component.stop();
    }

    public static ClasspathFunctionResolver create(Properties config) {
        ClasspathFunctionResolver resolver = new ClasspathFunctionResolver();

        Context context = new Context.Builder().with(Context.Capabilities.STELLAR_CONFIG, () -> config).build();
        resolver.initialize(context);

        return resolver;
    }

    @Test
    public void test() throws Exception {
        Properties config = new Properties();
        config.put(STELLAR_VFS_PATHS.param(), configuration.get("fs.defaultFS") + "/classpath-resources/.*.jar");
        ClasspathFunctionResolver resolver = create(config);
        HashSet<String> functions = new HashSet<>(Lists.newArrayList(resolver.getFunctions()));
        Assert.assertTrue(functions.contains("NOW"));
    }

}