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 org.apache.cassandra.tools.nodetool;
  
  import org.junit.BeforeClass;
  import org.junit.Test;
  
  import org.apache.cassandra.config.DatabaseDescriptor;
  import org.apache.cassandra.cql3.CQLTester;
  
  import static org.apache.cassandra.tools.ToolRunner.ToolResult;
  import static org.apache.cassandra.tools.ToolRunner.invokeNodetool;
  import static org.assertj.core.api.Assertions.assertThat;
  
  /**
   * Tests for {@code nodetool setcompactionthroughput} and {@code nodetool getcompactionthroughput}.
   */
  public class SetGetCompactionThroughputTest extends CQLTester
  {
      private static final int MAX_INT_CONFIG_VALUE_IN_MBIT = Integer.MAX_VALUE - 1;
  
      @BeforeClass
      public static void setup() throws Exception
      {
          requireNetwork();
          startJMXServer();
      }
  
      @Test
      public void testNull()
      {
          assertSetInvalidThroughput(null, "Missing required parameter: 'compaction_throughput'");
      }
  
      @Test
      public void testPositive()
      {
          assertSetGetValidThroughput(7);
      }
  
      @Test
      public void testMaxValue()
      {
          assertSetGetValidThroughput(MAX_INT_CONFIG_VALUE_IN_MBIT);
      }
  
      @Test
      public void testUpperBound()
      {
          assertSetInvalidThroughputMib(String.valueOf(Integer.MAX_VALUE));
      }
  
      @Test
      public void testZero()
      {
          assertSetGetValidThroughput(0);
      }
  
      @Test
      public void testUnparseable()
      {
          assertSetInvalidThroughput("1.2", "Invalid value for positional parameter at index 0 (compaction_throughput): '1.2' is not an int");
          assertSetInvalidThroughput("value", "Invalid value for positional parameter at index 0 (compaction_throughput): 'value' is not an int");
          assertSetInvalidThroughput();
          assertPreciseMibFlagNeeded();
      }
  
      @Test
      public void testCurrentCompactionThroughput()
      {
          ToolResult tool = invokeNodetool("getcompactionthroughput");
          tool.assertOnCleanExit();
  
          assertThat(tool.getStdout()).containsPattern("Current compaction throughput \\(1 minute\\): \\d+\\.\\d+ MiB/s");
          assertThat(tool.getStdout()).containsPattern("Current compaction throughput \\(5 minute\\): \\d+\\.\\d+ MiB/s");
          assertThat(tool.getStdout()).containsPattern("Current compaction throughput \\(15 minute\\): \\d+\\.\\d+ MiB/s");
      }
  
      private static void assertSetGetValidThroughput(int throughput)
      {
          ToolResult tool = invokeNodetool("setcompactionthroughput", String.valueOf(throughput));
          tool.assertOnCleanExit();
          assertThat(tool.getStdout()).isEmpty();
  
          assertGetThroughput(throughput);
          assertGetThroughputDouble(throughput);
      }
  
      private static void assertSetInvalidThroughput(String throughput, String expectedErrorMessage)
      {
          ToolResult tool = throughput == null ? invokeNodetool("setcompactionthroughput")
                                               : invokeNodetool("setcompactionthroughput", throughput);
          assertThat(tool.getExitCode()).isEqualTo(1);
          assertThat(tool.getStdout()).contains(expectedErrorMessage);
      }
  
      private static void assertSetInvalidThroughput()
      {
          DatabaseDescriptor.setCompactionThroughputBytesPerSec(500);
          ToolResult tool = invokeNodetool("getstreamthroughput");
          assertThat(tool.getExitCode()).isEqualTo(2);
          assertThat(tool.getStderr()).contains("Use the -d flag to quiet this error and get the exact throughput in megabits/s");
      }
  
      private static void assertSetInvalidThroughputMib(String throughput)
      {
          ToolResult tool = invokeNodetool("setcompactionthroughput", throughput);
          assertThat(tool.getExitCode()).isEqualTo(1);
          assertThat(tool.getStdout()).contains("compaction_throughput: 2147483647 is too large; it should be less than" +
                                                " 2147483647 in MiB/s");
      }
  
      private static void assertPreciseMibFlagNeeded()
      {
          DatabaseDescriptor.setCompactionThroughputBytesPerSec(15);
          ToolResult tool = invokeNodetool("getcompactionthroughput");
          assertThat(tool.getExitCode()).isEqualTo(2);
          assertThat(tool.getStderr()).contains("Use the -d flag to quiet this error and get the exact throughput in MiB/s");
      }
  
      private static void assertGetThroughput(int expected)
      {
          ToolResult tool = invokeNodetool("getcompactionthroughput");
          tool.assertOnCleanExit();
  
          if (expected > 0)
              assertThat(tool.getStdout()).contains("Current compaction throughput: " + expected + " MiB/s");
          else
              assertThat(tool.getStdout()).contains("Current compaction throughput: 0 MiB/s");
      }
  
      private static void assertGetThroughputDouble(double expected)
      {
          ToolResult tool = invokeNodetool("getcompactionthroughput", "-d");
          tool.assertOnCleanExit();
  
          if (expected > 0)
              assertThat(tool.getStdout()).contains("Current compaction throughput: " + expected + " MiB/s");
          else
              assertThat(tool.getStdout()).contains("Current compaction throughput: 0.0 MiB/s");
      }
  }
  