src/com/google/gct/testing/vnc/VncKeepAliveThreadImpl.java

/*
 * Copyright (C) 2015 The Android Open Source Project
 *
 * 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.google.gct.testing.vnc;

import com.glavsoft.viewer.Viewer;
import com.glavsoft.viewer.VncKeepAliveThread;
import com.glavsoft.viewer.cli.Parser;

import javax.swing.*;
import java.io.File;

import static com.google.gct.testing.launcher.CloudAuthenticator.getTest;

public class VncKeepAliveThreadImpl extends VncKeepAliveThread {
  private final Parser parser;
  private final String configurationName;
  private final String cloudProjectId;
  private final String cloudDeviceId;
  private final String deviceAddress;
  private final File workingDir;
  private volatile boolean hasCrashed = false;


  public static void startVnc(String[] args, String configurationName, String cloudProjectId, String cloudDeviceId, String deviceAddress,
                              File workingDir) {
    Parser parser = Viewer.prepareParser(args);
    if (parser == null) {
      return;
    }
    new VncKeepAliveThreadImpl(parser, configurationName, cloudProjectId, cloudDeviceId, deviceAddress, workingDir).start();
  }

  public VncKeepAliveThreadImpl(Parser parser, String configurationName, String cloudProjectId, String cloudDeviceId, String deviceAddress,
                                File workingDir) {
    this.parser = parser;
    this.configurationName = configurationName;
    this.cloudProjectId = cloudProjectId;
    this.cloudDeviceId = cloudDeviceId;
    this.deviceAddress = deviceAddress;
    this.workingDir = workingDir;
  }

  @Override
  public void run() {
    SwingUtilities.invokeLater(new Viewer(this, parser, configurationName));

    while (!Thread.currentThread().isInterrupted() && deviceIsReady()) {
      try {
        getTest().projects().devices().keepalive(cloudProjectId, cloudDeviceId).execute();
      } catch (Exception e) {
        e.printStackTrace();
      }
      // Restart the viewer if it accidentally crashed.
      if (hasCrashed) {
        hasCrashed = false;
        System.out.println("Restarting TightVNC Viewer");
        SwingUtilities.invokeLater(new Viewer(this, parser, configurationName));
      }
      try {
        Thread.sleep(1 * 1000); // 1 second
      } catch (InterruptedException e) {
        break;
      }
    }
    try {
      // Delete the cloud device after the viewer is closed.
      getTest().projects().devices().delete(cloudProjectId, cloudDeviceId).execute();
      // Disconnect adb from the deleted device (otherwise, it will keep showing the stale cloud device).
      Runtime.getRuntime().exec("./adb disconnect " + deviceAddress, null, workingDir);
    } catch (Exception exception) {
      exception.printStackTrace();
    }
  }

  private boolean deviceIsReady() {
    try {
      return getTest().projects().devices().get(cloudProjectId, cloudDeviceId).execute().getState().equals("READY");
    } catch (Exception e) {
      return true; // Do not stop the keep alive thread for intermittent connection failures.
    }
  }

  @Override
  public void setCrashed() {
    hasCrashed = true;
  }

}