private int[] getExhalation(int[] data, int length) {
int valleyIndex = 0, peakIndex = 0;
ArrayList<Integer> list = new ArrayList<Integer>();
int i = 0;
int temp = length;
for (; i < temp; i += 4) {
// check the starting whether it starts from valley or not. It should be valley
if ((i == 0) && (data[i + 1] > data[i + 3]))
continue; // it escaping if first member is a peak. in that case we can not find the
// inspiration. inspiration always starts from a valley
// check last element whether it is valley or peak. it should be valley
if ((i == 0)
&& (data[length - 1]
> data[length - 3])) // at the beginning the stopping condition is changed
temp = length - 2;
if (i + 4 < length) {
valleyIndex = data[i + 4];
peakIndex = data[i + 2];
list.add(new Integer(valleyIndex - peakIndex));
}
}
// converting the ArrayList to array
int exhalation[] = new int[list.size()];
for (int j = 0; j < list.size(); j++) {
exhalation[j] = list.get(j).intValue();
}
DebugHelper.dump(TAG, exhalation);
return exhalation;
}
@Override
protected void processInput(String name, String type, Object data, int length, long timestamp) {
if (name.contains("AccelerometerRMSFFT1.0-10.0-1.0")) {
mFFT1_10 = (double[]) data;
} else if (name.contains("AccelerometerRMSVariance")) {
mVariance = (Double) data;
mIsVarianceNew = true;
} else if (name.contains("AccelerometerRMSScale310.0FFT1.0-3.0-1.0")) {
mScaledFFT1_3 = (double[]) data;
} else if (name.contains("AccelerometerRMSScale310.0Variance")) {
mScaledVariance = (Double) data;
mIsScaledVarianceNew = true;
} else if (name.contains("GPS")) {
mSpeed = ((double[]) data)[3];
mIsSpeedNew = true;
} else {
throw new UnsupportedOperationException("Unsupported name: " + name);
}
int activity = -1;
if (mIsSpeedNew && mSpeed > 0.29 && mIsScaledVarianceNew && mScaledFFT1_3 != null) {
activity = classifyActivityWithGPS(mSpeed, mScaledVariance, mScaledFFT1_3);
mIsSpeedNew = false;
mIsScaledVarianceNew = false;
mScaledFFT1_3 = null;
} else if (mFFT1_10 != null && mIsVarianceNew) {
activity = classifyActivityWithoutGPS(mVariance, mFFT1_10);
mIsVarianceNew = false;
mFFT1_10 = null;
}
if (activity != -1) {
DebugHelper.log(TAG, "activity = " + activity);
output(SensorType.ACTIVITY_CONTEXT_NAME, DataType.INTEGER, activity, 0, timestamp);
}
}