/**
 * Copyright 2014 BlackBerry, Limited.
 *
 * Licensed 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.blackberry.testutil;

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

import kafka.admin.TopicCommand;
import kafka.server.KafkaConfig;
import kafka.server.KafkaServerStartable;
import kafka.admin.TopicCommand.*;
import org.apache.kafka.common.security.JaasUtils;
import kafka.utils.ZkUtils;
import org.apache.commons.io.FileUtils;

public class LocalKafkaServer {

	private String nodeId = "0";
	private String port = "9876";
	private String logDir = FileUtils.getTempDirectoryPath() + "/kafka.log";
	private String zkConnect = "localhost:21818";
	private KafkaServerStartable server;
	private ZkUtils zkUtils;

	public LocalKafkaServer() throws IOException {

		while (new File(logDir).exists()) {
			FileUtils.deleteDirectory(new File(logDir));
		}

		Properties props = new Properties();
		props.put("broker.id", nodeId);
		props.put("port", port);
		props.put("log.dir", logDir);
		props.put("zookeeper.connect", zkConnect);
		props.put("host.name", "127.0.0.1");
		KafkaConfig conf = new KafkaConfig(props);

                zkUtils = ZkUtils.apply(props.getProperty("zookeeper.connect"),
                          30000,
                          30000,
                          JaasUtils.isZkSecurityEnabled());


		server = new KafkaServerStartable(conf);
		server.startup();
	}

	public void shutdown() throws IOException {
		server.shutdown();
		server.awaitShutdown();
		FileUtils.deleteDirectory(new File(logDir));
	}

	public void createTopic(String topic) {
		TopicCommandOptions createOpts = new TopicCommandOptions(new String[]{"--create", "--zookeeper",
                        "localhost:21818", "--replication-factor", "1", "--partition", "1",
                        "--topic", topic});
                TopicCommand.createTopic(zkUtils,createOpts);
	}

}