Android Open Source - RoboDroid Tinkerforge Stack Agent

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License

The source code is released under:

Apache License

Java Source Code

package ch.quantasy.tinkerforge.tinker.agent.implementation;
/* w  w w  .  ja  v  a  2s.  c  o  m*/
import java.io.IOException;
import java.net.UnknownHostException;
import java.util.HashSet;
import java.util.Set;
import java.util.Timer;
import java.util.TimerTask;

import ch.quantasy.tinkerforge.tinker.agent.definition.Agent;
import ch.quantasy.tinkerforge.tinker.application.definition.TinkerforgeApplication;
import ch.quantasy.tinkerforge.tinker.core.implementation.AbstractTinkerforgeStackManager;

import com.tinkerforge.Device;

public class TinkerforgeStackAgent extends AbstractTinkerforgeStackManager implements Agent<TinkerforgeApplication> {
  public static final int DEFAULT_CONNECTION_TIMEOUT_IN_MILLISECONDS = 1000 * 60;
  private int connectionTimeoutInMilliseconds;
  private Timer timer;
  private final Set<TinkerforgeApplication> tinkerforgeApplications;
  private final TinkerforgeStackAgentIdentifier tinkerforgeStackAgentIdentifier;
  private Exception actualConnectionException;

  public TinkerforgeStackAgent(final TinkerforgeStackAgentIdentifier tinkerforgeStackAgentIdentifier) {
    super(tinkerforgeStackAgentIdentifier.getHostName(), tinkerforgeStackAgentIdentifier.getPort());
    this.connectionTimeoutInMilliseconds = TinkerforgeStackAgent.DEFAULT_CONNECTION_TIMEOUT_IN_MILLISECONDS;
    this.tinkerforgeStackAgentIdentifier = tinkerforgeStackAgentIdentifier;
    this.tinkerforgeApplications = new HashSet<TinkerforgeApplication>();
  }

  public int getConnectionTimeoutInMilliseconds() {
    return this.connectionTimeoutInMilliseconds;
  }

  public void setConnectionTimeoutInMilliseconds(final int connectionTimeoutInMilliseconds) {
    this.connectionTimeoutInMilliseconds = connectionTimeoutInMilliseconds;
  }

  public Set<TinkerforgeApplication> getTinkerforgeApplications() {
    return new HashSet<TinkerforgeApplication>(this.tinkerforgeApplications);
  }

  public Exception getActualConnectionException() {
    return this.actualConnectionException;
  }

  public TinkerforgeStackAgentIdentifier getStackAgentIdentifier() {
    return this.tinkerforgeStackAgentIdentifier;
  }

  /**
   * Connects the application to the stack. If not already done, the connection
   * to the physical stack will be established
   * 
   * @param tinkerforgeApplication
   */
  public void addApplication(final TinkerforgeApplication tinkerforgeApplication) {
    if (tinkerforgeApplication == null)
      return;
    if (this.tinkerforgeApplications.add(tinkerforgeApplication)) {
      tinkerforgeApplication.connectedToAgent(this);
      if (super.isConnected()) {
        tinkerforgeApplication.stackConnected(this);
        for (final Device device : super.getConnectedDeviceList()) {
          tinkerforgeApplication.deviceConnected(this, device);
        }
      } else {
        this.connect();
      }
    }
  }

  /**
   * Removes the application from the stack. If no application is connected any
   * more, the connection to the physical stack will be closed.
   * 
   * @param tinkerforgeApplication
   */
  public void removeApplication(final TinkerforgeApplication tinkerforgeApplication) {
    if (tinkerforgeApplication == null)
      return;

    if (this.tinkerforgeApplications.contains(tinkerforgeApplication)) {
      tinkerforgeApplication.disconnectingFromAgent(this);
      for (final Device device : super.getConnectedDeviceList()) {
        tinkerforgeApplication.deviceIsDisconnecting(this, device);
      }
    }
    if (this.tinkerforgeApplications.remove(tinkerforgeApplication)) {
      for (final Device device : super.getConnectedDeviceList()) {
        tinkerforgeApplication.deviceDisconnected(this, device);
      }
      tinkerforgeApplication.disconnectedFromAgent(this);
    }

    if (this.tinkerforgeApplications.isEmpty()) {
      super.disconnect();
    }

  }

  @Override
  protected synchronized void connect() {
    if (this.timer != null)
      return;
    this.timer = new Timer(true);
    this.timer.schedule(new TimerTask() {

      @Override
      public void run() {
        try {
          TinkerforgeStackAgent.super.connect();
          TinkerforgeStackAgent.this.actualConnectionException = null;
          TinkerforgeStackAgent.this.timer.cancel();
        } catch (final UnknownHostException e) {
          TinkerforgeStackAgent.this.actualConnectionException = e;
        } catch (final IOException e) {
          TinkerforgeStackAgent.this.actualConnectionException = e;
        }
      }
    }, 0, TinkerforgeStackAgent.this.getConnectionTimeoutInMilliseconds());

  }

  @Override
  protected synchronized void disconnect() {
    if (this.timer != null) {
      this.timer.cancel();
    }
    super.disconnect();
  }

  @Override
  protected void connected() {
    for (final TinkerforgeApplication tinkerforgeApplication : this.tinkerforgeApplications) {
      tinkerforgeApplication.stackConnected(this);
    }

  }

  @Override
  protected void disconnected() {
    for (final TinkerforgeApplication tinkerforgeApplication : this.tinkerforgeApplications) {
      tinkerforgeApplication.stackDisconnected(this);
    }
  }

  @Override
  protected void deviceConnected(final Device device) {
    for (final TinkerforgeApplication tinkerforgeApplication : this.tinkerforgeApplications) {
      tinkerforgeApplication.deviceConnected(this, device);
    }
  }

  @Override
  protected void deviceReConnected(final Device device) {
    for (final TinkerforgeApplication tinkerforgeApplication : this.tinkerforgeApplications) {
      tinkerforgeApplication.deviceConnected(this, device);
    }
  }

  @Override
  protected void deviceDisconnected(final Device device) {
    for (final TinkerforgeApplication tinkerforgeApplication : this.tinkerforgeApplications) {
      tinkerforgeApplication.deviceDisconnected(this, device);
    }
  }

  @Override
  public String toString() {
    return "TinkerforgeStackAgent [tinkerforgeStackAgentIdentifier=" + this.tinkerforgeStackAgentIdentifier + "]";
  }

  @Override
  public int hashCode() {
    final int prime = 31;
    int result = 1;
    result = (prime * result)
        + ((this.tinkerforgeStackAgentIdentifier == null) ? 0 : this.tinkerforgeStackAgentIdentifier.hashCode());
    return result;
  }

  @Override
  public boolean equals(final Object obj) {
    if (this == obj) {
      return true;
    }
    if (obj == null) {
      return false;
    }
    if (this.getClass() != obj.getClass()) {
      return false;
    }
    final TinkerforgeStackAgent other = (TinkerforgeStackAgent) obj;
    if (this.tinkerforgeStackAgentIdentifier == null) {
      if (other.tinkerforgeStackAgentIdentifier != null) {
        return false;
      }
    } else if (!this.tinkerforgeStackAgentIdentifier.equals(other.tinkerforgeStackAgentIdentifier)) {
      return false;
    }
    return true;
  }

}

Java Source Code List

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