org.apache.metron.common.cli.ConfigurationManagerIntegrationTest.java Source code

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Here is the source code for org.apache.metron.common.cli.ConfigurationManagerIntegrationTest.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.cli;

import com.google.common.base.Splitter;
import com.google.common.collect.Collections2;
import com.google.common.collect.Iterables;
import org.apache.commons.cli.PosixParser;
import org.apache.curator.framework.CuratorFramework;
import org.apache.curator.test.TestingServer;
import org.apache.hadoop.io.BooleanWritable;
import org.apache.metron.TestConstants;
import org.apache.metron.common.configuration.ConfigurationType;
import org.apache.metron.common.configuration.ConfigurationsUtils;
import org.junit.After;
import org.junit.Assert;
import org.junit.Before;
import org.junit.Test;

import java.io.File;
import java.io.IOException;
import java.nio.file.DirectoryNotEmptyException;
import java.nio.file.Files;
import java.nio.file.Paths;
import java.util.*;

public class ConfigurationManagerIntegrationTest {
    private TestingServer testZkServer;
    private CuratorFramework client;
    private String zookeeperUrl;
    private String outDir = "target/configs";
    private Set<String> sensors = new HashSet<>();

    private void cleanDir(File rootDir) throws IOException {
        if (rootDir.isDirectory()) {
            try {
                Files.delete(Paths.get(rootDir.toURI()));
            } catch (DirectoryNotEmptyException dne) {
                for (File f : rootDir.listFiles()) {
                    cleanDir(f);
                }
                rootDir.delete();
            }
        } else {
            rootDir.delete();
        }
    }

    @Before
    public void setup() throws Exception {
        testZkServer = new TestingServer(true);
        zookeeperUrl = testZkServer.getConnectString();
        client = ConfigurationsUtils.getClient(zookeeperUrl);
        client.start();
        File sensorDir = new File(new File(TestConstants.SAMPLE_CONFIG_PATH),
                ConfigurationType.ENRICHMENT.getDirectory());
        sensors.addAll(Collections2.transform(Arrays.asList(sensorDir.list()),
                s -> Iterables.getFirst(Splitter.on('.').split(s), "null")));
        pushConfigs();
    }

    private void pushConfigs() throws Exception {
        String[] args = new String[] { "-z", zookeeperUrl, "--mode", "PUSH", "--input_dir",
                TestConstants.SAMPLE_CONFIG_PATH };
        ConfigurationManager manager = new ConfigurationManager();
        manager.run(ConfigurationManager.ConfigurationOptions.parse(new PosixParser(), args));
    }

    public void pullConfigs(boolean force) throws Exception {
        String[] args = null;
        if (force) {
            args = new String[] { "-z", zookeeperUrl, "--mode", "PULL", "--output_dir", outDir, "--force" };
        } else {
            args = new String[] { "-z", zookeeperUrl, "--mode", "PULL", "--output_dir", outDir };
        }
        ConfigurationManager manager = new ConfigurationManager();
        manager.run(ConfigurationManager.ConfigurationOptions.parse(new PosixParser(), args));
    }

    public void validateConfigsOnDisk(File configDir) throws IOException {
        File globalConfigFile = new File(configDir, "global.json");
        Assert.assertTrue("Global config does not exist", globalConfigFile.exists());
        validateConfig("global", ConfigurationType.GLOBAL,
                new String(Files.readAllBytes(Paths.get(globalConfigFile.toURI()))));
        for (String sensor : sensors) {
            File sensorFile = new File(configDir,
                    ConfigurationType.ENRICHMENT.getDirectory() + "/" + sensor + ".json");
            Assert.assertTrue(sensor + " config does not exist", sensorFile.exists());
            validateConfig(sensor, ConfigurationType.ENRICHMENT,
                    new String(Files.readAllBytes(Paths.get(sensorFile.toURI()))));
        }
    }

    @Test
    public void testPull() throws Exception {
        cleanDir(new File(outDir));
        pullConfigs(false);
        validateConfigsOnDisk(new File(outDir));
        try {
            //second time without force should
            pullConfigs(false);
            Assert.fail("Should have failed to pull configs in a directory structure that already exists.");
        } catch (IllegalStateException t) {
            //make sure we didn't bork anything
            validateConfigsOnDisk(new File(outDir));
        }
        pullConfigs(true);
        validateConfigsOnDisk(new File(outDir));
    }

    public void validateConfig(String name, ConfigurationType type, String data) {
        try {
            type.deserialize(data);
        } catch (Exception e) {
            Assert.fail("Unable to load config " + name + ": " + data);
        }
    }

    @Test
    public void testPush() throws Exception {
        pushConfigs();
        final Set<String> sensorsInZookeeper = new HashSet<>();
        final BooleanWritable foundGlobal = new BooleanWritable(false);
        ConfigurationsUtils.visitConfigs(client, new ConfigurationsUtils.ConfigurationVisitor() {
            @Override
            public void visit(ConfigurationType configurationType, String name, String data) {
                Assert.assertTrue(data.length() > 0);
                validateConfig(name, configurationType, data);
                if (configurationType == ConfigurationType.GLOBAL) {
                    validateConfig(name, configurationType, data);
                    foundGlobal.set(true);
                } else {
                    sensorsInZookeeper.add(name);
                }
            }
        });
        Assert.assertEquals(true, foundGlobal.get());
        Assert.assertEquals(sensorsInZookeeper, sensors);
    }

    @After
    public void tearDown() throws IOException {
        client.close();
        testZkServer.close();
        testZkServer.stop();
    }
}