Android Open Source - VTTPhysicalActivityLibrary Internal Class

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The source code is released under:
Copyright (c) 2013, VTT Technical Research Centre of Finland All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the ...
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Java Source Code

/*
 * Copyright (c) 2013, VTT Technical Research Centre of Finland 
 * All rights reserved. /* ww w.  j  av a  2 s.c o  m*/
 * 
 * Redistribution and use in source and binary forms, with or without 
 * modification, are permitted provided that the following conditions are met: 
 * 
 * 1. Redistributions of source code must retain the above copyright 
 *    notice, this list of conditions and the following disclaimer. 
 * 2. Redistributions in binary form must reproduce the above copyright 
 *    notice, this list of conditions and the following disclaimer in the 
 *    documentation and/or other materials provided with the distribution. 
 * 3. Neither the name of the VTT Technical Research Centre of Finland nor the 
 *    names of its contributors may be used to endorse or promote products 
 *    derived from this software without specific prior written permission. 
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND 
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 
 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR 
 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
 * 
 */

package fi.vtt.physicalactivitylibrary.internal;

import android.content.Context;
import fi.vtt.physicalactivitylibrary.PhysicalActivityLibraryCallback;
import fi.vtt.physicalactivitylibrary.VTTPhysicalActivityLibrary;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Map;

/**
 * InternalClass, runs the library internal functions, implements DataCollectorListener. 
 * 
 * @see  fi.vtt.physicalactivitylibrary.internal.DataCollectorListener 
 *
 */

public class InternalClass implements DataCollectorListener {

  private ArrayList<DataCollectorObserver> dataCollectorObserversArrayList;

  private DataCollector dataCollector;

  private PhysicalActivityLibraryCallback physicalActivityLibraryCallback = null;

  /**
   * Disable a specific detection method. 
   * 
   * @param  typeIntegerIncoming  The detection method type integer. 
   * 
   * @return  returnBoolean  True, if succeeded, otherwise false. 
   */

  public boolean disableDetectionMethod(int typeIntegerIncoming) {
    boolean returnBoolean = false;

    for (int i = 0; i < dataCollectorObserversArrayList.size(); i++) {
      DataCollectorObserver dataCollectorObserver = dataCollectorObserversArrayList.get(i);

      if (dataCollectorObserver.getIdentifier() == typeIntegerIncoming) {
        dataCollectorObserversArrayList.remove(i);

        returnBoolean = true;

        break;
      }
    }

    return returnBoolean;
  }

  /**
   * Enable a specific detection method. 
   * 
   * @param  typeIntegerIncoming  The detection method type integer. 
   * 
   * @return  returnBoolean  True, if succeeded, otherwise false. 
   */

  public boolean enableDetectionMethod(int typeIntegerIncoming) {
    boolean returnBoolean = false;

    switch (typeIntegerIncoming) {

      case VTTPhysicalActivityLibrary.DETECTION_FALL:
        DataCollectorObserver fallDetection = new FallDetection();

        returnBoolean = dataCollectorObserversArrayList.add(fallDetection);

        break;

      case VTTPhysicalActivityLibrary.DETECTION_LIGHT:
        DataCollectorObserver lightDetection = new LightDetection();

        returnBoolean = dataCollectorObserversArrayList.add(lightDetection);

        break;

      case VTTPhysicalActivityLibrary.DETECTION_ORIENTATION:
        DataCollectorObserver orientationDetection = new OrientationDetection();

        returnBoolean = dataCollectorObserversArrayList.add(orientationDetection);

        break;

      case VTTPhysicalActivityLibrary.DETECTION_PROXIMITY:
        DataCollectorObserver proximityDetection = new ProximityDetection();

        returnBoolean = dataCollectorObserversArrayList.add(proximityDetection);

        break;

      case VTTPhysicalActivityLibrary.DETECTION_RUN:
        DataCollectorObserver runDetection = new RunDetection();

        returnBoolean = dataCollectorObserversArrayList.add(runDetection);

        break;

      case VTTPhysicalActivityLibrary.DETECTION_RUN_AND_WALK:
        DataCollectorObserver runAndWalkDetection = new RunAndWalkDetection();

        returnBoolean = dataCollectorObserversArrayList.add(runAndWalkDetection);

        break;

      case VTTPhysicalActivityLibrary.DETECTION_STABILITY:
        DataCollectorObserver stabilityDetection = new StabilityDetection();

        returnBoolean = dataCollectorObserversArrayList.add(stabilityDetection);

        break;

      case VTTPhysicalActivityLibrary.DETECTION_WALK:
        DataCollectorObserver walkDetection = new WalkDetection();

        returnBoolean = dataCollectorObserversArrayList.add(walkDetection);

        break;

      default:
        break;
    }

    return returnBoolean;
  }

  public boolean isRunning() {
    return dataCollector.isRecording();
  }

  /**
   * Constructor. 
   * 
   * @param  contextIncoming  The application context. 
   * 
   */

  public InternalClass(Context contextIncoming) {
    dataCollector = new DataCollector(contextIncoming);
    dataCollector.registerListener(this);
    dataCollectorObserversArrayList = new ArrayList<DataCollectorObserver>();
  }

  /**
   * Called when data collection is completed. 
   * 
   */

  @Override
  public void dataCollectionCompleted() {
    ArrayList<Float> xBuffer = new ArrayList<Float>(dataCollector.getXBuffer());
    ArrayList<Float> yBuffer = new ArrayList<Float>(dataCollector.getYBuffer());
    ArrayList<Float> zBuffer = new ArrayList<Float>(dataCollector.getZBuffer());

    ArrayList<Long> timeBuffer = new ArrayList<Long>(dataCollector.getTimeBuffer());

    if (timeBuffer.size() < 10 && physicalActivityLibraryCallback != null) {
      physicalActivityLibraryCallback.error(VTTPhysicalActivityLibrary.ERROR_NO_ACCELEROMETER_DATA_AVAILABLE);
    }
    else {
      RawData rawData = new RawData();
      rawData.setAccelerometerXBuffer(xBuffer);
      rawData.setAccelerometerYBuffer(yBuffer);
      rawData.setAccelerometerZBuffer(zBuffer);
      rawData.setAccelerometerTimeBuffer(timeBuffer);

      Map<Integer, Double> recognitionsIntegerDoubleMap = new HashMap<Integer, Double>();

      for (int i = 0; i < dataCollectorObserversArrayList.size(); i++) {
        DataCollectorObserver dataCollectorObserver = dataCollectorObserversArrayList.get(i);
        dataCollectorObserver.dataCollectedNotify(rawData);

        int typeInteger = dataCollectorObserver.getIdentifier();

        double valueDouble = dataCollectorObserver.getValue();

        if (typeInteger == VTTPhysicalActivityLibrary.DETECTION_LIGHT) {
          recognitionsIntegerDoubleMap.put(VTTPhysicalActivityLibrary.DETECTION_LIGHT, (double)dataCollector.getLightValue());
        }
        else if (typeInteger == VTTPhysicalActivityLibrary.DETECTION_PROXIMITY) {
          recognitionsIntegerDoubleMap.put(VTTPhysicalActivityLibrary.DETECTION_PROXIMITY, (double)dataCollector.getProximityValue());
        }
        else if (typeInteger == VTTPhysicalActivityLibrary.DETECTION_RUN_AND_WALK) {
          // Special case, because this detector calculates 2 values instead of just one:
          RunAndWalkDetection runAndWalkDetection = (RunAndWalkDetection)dataCollectorObserver;

          double walkValue = runAndWalkDetection.getWalkValue();

          recognitionsIntegerDoubleMap.put(VTTPhysicalActivityLibrary.DETECTION_WALK, walkValue);

          double runValue = runAndWalkDetection.getRunValue();

          recognitionsIntegerDoubleMap.put(VTTPhysicalActivityLibrary.DETECTION_RUN, runValue);

        }
        else {
          recognitionsIntegerDoubleMap.put(typeInteger, valueDouble);
        }
      }

      if (physicalActivityLibraryCallback != null) {
        physicalActivityLibraryCallback.newActivityInfo(recognitionsIntegerDoubleMap);
      }
    }
    dataCollector.recordSnapshot();
  }

  /**
   * Called if data collection fails. 
   * 
   * @param  errorCodeIntegerIncoming  The error type inteer value. 
   * 
   */

  @Override
  public void dataCollectionFailed(int errorCodeIntegerIncoming) {
    if (physicalActivityLibraryCallback != null) {
      physicalActivityLibraryCallback.error(errorCodeIntegerIncoming);
    }
  }

  public void setCallback(PhysicalActivityLibraryCallback physicalActivityLibraryCallbackIncoming) {
    physicalActivityLibraryCallback = physicalActivityLibraryCallbackIncoming;
  }

  /**
   * Starts recording. 
   * 
   */

  public void start() {
    if ((dataCollectorObserversArrayList.isEmpty()) && (physicalActivityLibraryCallback != null)) {
      physicalActivityLibraryCallback.error(VTTPhysicalActivityLibrary.ERROR_NO_DETECTIONS_ENABLED);
    }
    else {
      dataCollector.recordSnapshot();
    }
  }

  /**
   * Stops recording. 
   * 
   */

  public void stop() {
    dataCollector.stopRecording();
  }

}
Java Source Code List
