/*
 * 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.geode.distributed;

import org.apache.geode.distributed.internal.DistributionConfig;
import org.apache.geode.internal.process.ProcessStreamReader;
import org.junit.After;
import org.junit.Before;

import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.Callable;

import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.fail;

public abstract class AbstractServerLauncherRemoteIntegrationTestCase
    extends AbstractServerLauncherIntegrationTestCase {

  protected volatile Process process;
  protected volatile ProcessStreamReader processOutReader;
  protected volatile ProcessStreamReader processErrReader;

  @Before
  public final void setUpAbstractServerLauncherRemoteIntegrationTestCase() throws Exception {}

  @After
  public final void tearDownAbstractServerLauncherRemoteIntegrationTestCase() throws Exception {
    if (this.process != null) {
      this.process.destroy();
      this.process = null;
    }
    if (this.processOutReader != null && this.processOutReader.isRunning()) {
      this.processOutReader.stop();
    }
    if (this.processErrReader != null && this.processErrReader.isRunning()) {
      this.processErrReader.stop();
    }
  }

  /**
   * Override as needed.
   */
  protected List<String> getJvmArguments() {
    final List<String> jvmArguments = new ArrayList<String>();
    jvmArguments.add("-D" + DistributionConfig.GEMFIRE_PREFIX + "log-level=config");
    return jvmArguments;
  }

  /**
   * Remove final if a test needs to override.
   */
  protected final AbstractLauncher.Status getExpectedStopStatusForNotRunning() {
    return AbstractLauncher.Status.NOT_RESPONDING;
  }

  protected void waitForServerToStart() throws Exception {
    assertEventuallyTrue("waiting for local Server to start: " + launcher.status(),
        new Callable<Boolean>() {
          @Override
          public Boolean call() throws Exception {
            try {
              assertNotNull(process);
              try {
                final int value = process.exitValue();
                fail("Process has died with exit value " + value
                    + " while waiting for it to start.");
              } catch (IllegalThreadStateException e) {
                // expected
              }
              final ServerLauncher.ServerState serverState = launcher.status();
              assertNotNull(serverState);
              logger.info("serverState: " + serverState);
              return AbstractLauncher.Status.ONLINE.equals(serverState.getStatus());
            } catch (RuntimeException e) {
              logger.error(e, e);
              return false;
            }
          }
        }, TIMEOUT_MILLISECONDS, INTERVAL_MILLISECONDS);
  }

}