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.beam.runners.dataflow.worker.streaming.config;
  
  import static org.junit.Assert.assertEquals;
  import static org.junit.Assert.assertTrue;
  
  import java.util.concurrent.CountDownLatch;
  import java.util.concurrent.TimeUnit;
  import java.util.concurrent.atomic.AtomicReference;
  import org.apache.beam.runners.dataflow.worker.OperationalLimits;
  import org.apache.beam.runners.dataflow.worker.windmill.Windmill.UserWorkerRunnerV1Settings;
  import org.apache.beam.vendor.guava.v32_1_2_jre.com.google.common.collect.ImmutableSet;
  import org.apache.beam.vendor.guava.v32_1_2_jre.com.google.common.net.HostAndPort;
  import org.junit.Test;
  import org.junit.runner.RunWith;
  import org.junit.runners.JUnit4;
  
  @RunWith(JUnit4.class)
  public class FixedGlobalConfigHandleTest {
  
    @Test
    public void getConfig() {
      StreamingGlobalConfig config =
          StreamingGlobalConfig.builder()
              .setOperationalLimits(
                  OperationalLimits.builder()
                      .setMaxOutputValueBytes(123)
                      .setMaxOutputKeyBytes(324)
                      .setMaxWorkItemCommitBytes(456)
                      .build())
              .setWindmillServiceEndpoints(ImmutableSet.of(HostAndPort.fromHost("windmillHost")))
              .setUserWorkerJobSettings(
                  UserWorkerRunnerV1Settings.newBuilder()
                      .setUseSeparateWindmillHeartbeatStreams(false)
                      .build())
              .build();
      FixedGlobalConfigHandle globalConfigHandle = new FixedGlobalConfigHandle(config);
      assertEquals(config, globalConfigHandle.getConfig());
    }
  
    @Test
    public void registerConfigObserver() throws InterruptedException {
      StreamingGlobalConfig config =
          StreamingGlobalConfig.builder()
              .setOperationalLimits(
                  OperationalLimits.builder()
                      .setMaxOutputValueBytes(123)
                      .setMaxOutputKeyBytes(324)
                      .setMaxWorkItemCommitBytes(456)
                      .build())
              .setWindmillServiceEndpoints(ImmutableSet.of(HostAndPort.fromHost("windmillHost")))
              .setUserWorkerJobSettings(
                  UserWorkerRunnerV1Settings.newBuilder()
                      .setUseSeparateWindmillHeartbeatStreams(false)
                      .build())
              .build();
      FixedGlobalConfigHandle globalConfigHandle = new FixedGlobalConfigHandle(config);
      AtomicReference<StreamingGlobalConfig> configFromCallback = new AtomicReference<>();
      CountDownLatch latch = new CountDownLatch(1);
      globalConfigHandle.registerConfigObserver(
          cbConfig -> {
            configFromCallback.set(cbConfig);
            latch.countDown();
          });
      assertTrue(latch.await(10, TimeUnit.SECONDS));
      assertEquals(configFromCallback.get(), globalConfigHandle.getConfig());
    }
  }
  