content: /**
   * 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 io.jafka.admin;
  
  import static org.junit.Assert.assertEquals;
  import static org.junit.Assert.assertTrue;
  
  import java.io.IOException;
  import java.util.Properties;
  import java.util.concurrent.TimeUnit;
  import java.util.concurrent.locks.LockSupport;
  
  import io.jafka.BaseJafkaServer;
  import io.jafka.producer.ProducerConfig;
  import io.jafka.producer.StringProducerData;
  import org.junit.After;
  import org.junit.Before;
  import org.junit.Test;
  
  import io.jafka.Jafka;
  import io.jafka.producer.Producer;
  import io.jafka.producer.serializer.StringEncoder;
  
  /**
   * @author adyliu (imxylz@gmail.com)
   * @since 1.2
   */
  public class AdminOperationTest extends BaseJafkaServer {
  
      Jafka jafka;
  
      final int partitions = 3;
  
      final String password = "jafka";
  
      private AdminOperation admin;
  
      @Before
      public void init() {
          if (jafka == null) {
              Properties props = new Properties();
              //force flush message to disk
              //we will fetch nothing while messages have note been flushed to disk
              props.put("log.flush.interval", "1");
              props.put("log.default.flush.scheduler.interval.ms", "100");//flush to disk every 100ms
              props.put("log.file.size", "5120");//5k for rolling
              props.put("num.partitions", "" + partitions);//default divided three partitions
              props.put("password", "plain:" + password);
              jafka = createJafka(props);
              sendSomeMessages(1000, "demo", "test");
              flush(jafka);
  
              LockSupport.parkNanos(TimeUnit.SECONDS.toNanos(1));
          }
          if (admin == null) {
              admin = new AdminOperation("localhost", jafka.getPort());
          }
      }
  
      private void sendSomeMessages(int count, final String... topics) {
          Properties producerConfig = new Properties();
          producerConfig.setProperty("broker.list", "0:localhost:" + jafka.getPort());
          producerConfig.setProperty("serializer.class", StringEncoder.class.getName());
          Producer<String, String> producer = new Producer<String, String>(new ProducerConfig(producerConfig));
          int index = 0;
          boolean over = false;
          while (!over) {
              StringProducerData[] data = new StringProducerData[topics.length];
              for (int x = 0; x < data.length; x++) {
                  data[x] = new StringProducerData(topics[x]);
              }
              int batch = 50;
              while (batch-- > 0 && !over) {
                  for (StringProducerData sd : data) {
                      sd.add(sd.getTopic() + "#message#" + (index++));
                  }
                  over = index >= count;
              }
              for (StringProducerData sd : data) {
                  producer.send(sd);
              }
          }
          producer.close();
      }
  
      @After
      public void destroy() throws Throwable {
          close(jafka);
          jafka = null;
          if (admin != null) {
              admin.close();
              admin = null;
          }
      }
  
      /**
       * Test method for
       * {@link AdminOperation#createPartitions(java.lang.String, int, boolean)}
       * .
       */
      @Test
      public void testCreatePartitions() throws IOException {
          int size = admin.createPartitions("demo", partitions - 1, false);
          assertEquals(partitions, size);
          size = admin.createPartitions("demo", partitions + 1, false);
          assertEquals(partitions+1, size);
          size = admin.createPartitions("demo", partitions + 3, true);
          assertEquals(partitions+3, size);
          //
      }
  
      /**
       * Test method for
       * {@link AdminOperation#deleteTopic(java.lang.String, java.lang.String)}
       * .
       */
      @Test
      public void testDeleteTopic() throws IOException {
          int currentPartitions = admin.createPartitions("demo",partitions-1,false);
          int count = admin.deleteTopic("demo", password);
          assertTrue(count > 0 && count == currentPartitions);
      }
  
  }
  