/*
 * 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.pulsar.io.hdfs3.sink;

import static org.testng.Assert.assertEquals;
import static org.testng.Assert.assertNotNull;
import com.fasterxml.jackson.databind.exc.InvalidFormatException;
import java.io.File;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;
import org.apache.pulsar.io.hdfs3.Compression;
import org.testng.annotations.Test;

public class HdfsSinkConfigTest {

    @Test
    public final void loadFromYamlFileTest() throws IOException {
        File yamlFile = getFile("sinkConfig.yaml");
        HdfsSinkConfig config = HdfsSinkConfig.load(yamlFile.getAbsolutePath());
        assertNotNull(config);
        assertEquals("core-site.xml", config.getHdfsConfigResources());
        assertEquals("/foo/bar", config.getDirectory());
        assertEquals("prefix", config.getFilenamePrefix());
        assertEquals(Compression.SNAPPY, config.getCompression());
    }

    @Test
    public final void loadFromMapTest() throws IOException {
        Map<String, Object> map = new HashMap<String, Object> ();
        map.put("hdfsConfigResources", "core-site.xml");
        map.put("directory", "/foo/bar");
        map.put("filenamePrefix", "prefix");
        map.put("compression", "SNAPPY");

        HdfsSinkConfig config = HdfsSinkConfig.load(map);
        assertNotNull(config);
        assertEquals("core-site.xml", config.getHdfsConfigResources());
        assertEquals("/foo/bar", config.getDirectory());
        assertEquals("prefix", config.getFilenamePrefix());
        assertEquals(Compression.SNAPPY, config.getCompression());
    }

    @Test
    public final void validValidateTest() throws IOException {
        Map<String, Object> map = new HashMap<String, Object> ();
        map.put("hdfsConfigResources", "core-site.xml");
        map.put("directory", "/foo/bar");
        map.put("filenamePrefix", "prefix");
        map.put("fileExtension", ".txt");

        HdfsSinkConfig config = HdfsSinkConfig.load(map);
        config.validate();
    }

    @Test(expectedExceptions = IllegalArgumentException.class,
            expectedExceptionsMessageRegExp = "Required property not set.")
    public final void missingDirectoryValidateTest() throws IOException {
        Map<String, Object> map = new HashMap<String, Object> ();
        map.put("hdfsConfigResources", "core-site.xml");

        HdfsSinkConfig config = HdfsSinkConfig.load(map);
        config.validate();
    }

    @Test(expectedExceptions = IllegalArgumentException.class,
            expectedExceptionsMessageRegExp = "Required property not set.")
    public final void missingHdfsConfigsValidateTest() throws IOException {
        Map<String, Object> map = new HashMap<String, Object> ();
        map.put("directory", "/foo/bar");

        HdfsSinkConfig config = HdfsSinkConfig.load(map);
        config.validate();
    }

    @Test(expectedExceptions = InvalidFormatException.class)
    public final void invalidCodecValidateTest() throws IOException {
        Map<String, Object> map = new HashMap<String, Object> ();
        map.put("hdfsConfigResources", "core-site.xml");
        map.put("directory", "/foo/bar");
        map.put("filenamePrefix", "prefix");
        map.put("fileExtension", ".txt");
        map.put("compression", "bad value");

        HdfsSinkConfig config = HdfsSinkConfig.load(map);
        config.validate();
    }

    @Test(expectedExceptions = IllegalArgumentException.class,
            expectedExceptionsMessageRegExp = "Sync Interval cannot be negative")
    public final void invalidSyncIntervalTest() throws IOException {
        Map<String, Object> map = new HashMap<String, Object> ();
        map.put("hdfsConfigResources", "core-site.xml");
        map.put("directory", "/foo/bar");
        map.put("filenamePrefix", "prefix");
        map.put("fileExtension", ".txt");
        map.put("syncInterval", -1);

        HdfsSinkConfig config = HdfsSinkConfig.load(map);
        config.validate();
    }

    @Test(expectedExceptions = IllegalArgumentException.class,
            expectedExceptionsMessageRegExp = "Max Pending Records must be a positive integer")
    public final void invalidMaxPendingRecordsTest() throws IOException {
        Map<String, Object> map = new HashMap<String, Object> ();
        map.put("hdfsConfigResources", "core-site.xml");
        map.put("directory", "/foo/bar");
        map.put("filenamePrefix", "prefix");
        map.put("fileExtension", ".txt");
        map.put("maxPendingRecords", 0);

        HdfsSinkConfig config = HdfsSinkConfig.load(map);
        config.validate();
    }

    @Test(expectedExceptions = IllegalArgumentException.class,
        expectedExceptionsMessageRegExp = "Values for both kerberosUserPrincipal & keytab are required.")
    public final void kerberosValidateTest() throws IOException {
        Map<String, Object> map = new HashMap<String, Object> ();
        map.put("hdfsConfigResources", "core-site.xml");
        map.put("directory", "/foo/bar");
        map.put("filenamePrefix", "prefix");
        map.put("keytab", "/etc/keytab/hdfs.client.ktab");

        HdfsSinkConfig config = HdfsSinkConfig.load(map);
        config.validate();
    }

    private File getFile(String name) {
        ClassLoader classLoader = getClass().getClassLoader();
    return new File(classLoader.getResource(name).getFile());
    }
}
