/*
 * 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 com.pinterest.secor.main;

import com.pinterest.secor.tools.TestLogMessageProducer;
import org.apache.commons.cli.CommandLine;
import org.apache.commons.cli.CommandLineParser;
import org.apache.commons.cli.GnuParser;
import org.apache.commons.cli.OptionBuilder;
import org.apache.commons.cli.Options;
import org.apache.commons.cli.ParseException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * Test log message producer main.
 *
 * Run:
 *     $ cd optimus/secor
 *     $ mvn package
 *     $ cd target
 *     $ java -ea -Dlog4j.configuration=log4j.dev.properties -Dconfig=secor.dev.backup.properties \
 *         -cp "secor-0.1-SNAPSHOT.jar:lib/*" com.pinterest.secor.main.TestLogMessageProducerMain \
 *         -t topic -m num_messages -p num_producer_threads
 *
 * @author Pawel Garbacki (pawel@pinterest.com)
 */
public class TestLogMessageProducerMain {
    private static final Logger LOG = LoggerFactory.getLogger(TestLogMessageProducerMain.class);

    private static CommandLine parseArgs(String[] args) throws ParseException {
        Options options = new Options();
        options.addOption(OptionBuilder.withLongOpt("topic")
                .withDescription("topic to post to")
                .hasArg()
                .withArgName("<topic>")
                .withType(String.class)
                .create("t"));
        options.addOption(OptionBuilder.withLongOpt("messages")
                .withDescription("number of messages per producer to post")
                .hasArg()
                .withArgName("<num_messages>")
                .withType(Number.class)
                .create("m"));
        options.addOption(OptionBuilder.withLongOpt("producers")
                .withDescription("number of producer threads")
                .hasArg()
                .withArgName("<num_producer_threads>")
                .withType(Number.class)
                .create("p"));
        options.addOption(OptionBuilder.withLongOpt("type")
                .withDescription("type of producer - [json, binary]")
                .hasArg()
                .withArgName("<type>")
                .withType(String.class)
                .create("type"));
        options.addOption(OptionBuilder.withLongOpt("broker")
                .withDescription("broker string, e.g. localhost:9092")
                .hasArg()
                .withArgName("<broker>")
                .withType(String.class)
                .create("broker"));
        options.addOption(OptionBuilder.withLongOpt("timeshift")
            .withDescription("message timestamp adjustment in seconds, it will be deducted" +
                " from current time")
            .hasArg()
            .withArgName("<timeshift>")
            .withType(Number.class)
            .create("timeshift"));

        CommandLineParser parser = new GnuParser();
        return parser.parse(options, args);
    }

    public static void main(String[] args) {
        try {
            CommandLine commandLine = parseArgs(args);
            String topic = commandLine.getOptionValue("topic");
            int messages = ((Number) commandLine.getParsedOptionValue("messages")).intValue();
            int producers = ((Number) commandLine.getParsedOptionValue("producers")).intValue();
            String broker = commandLine.getOptionValue("broker");
            String type = commandLine.getOptionValue("type");
            Number timeshiftNumber = ((Number)commandLine.getParsedOptionValue("timeshift"));
            int timeshift = timeshiftNumber == null ? 0 : timeshiftNumber.intValue();
            for (int i = 0; i < producers; ++i) {
                TestLogMessageProducer producer = new TestLogMessageProducer(
                     topic, messages, type, broker, timeshift);
                producer.start();
            }
        } catch (Throwable t) {
            LOG.error("Log message producer failed", t);
            System.exit(1);
        }
    }
}
