416 lines
19 KiB
Java
416 lines
19 KiB
Java
package nodomain.freeyourgadget.gadgetbridge.service.devices.miband.operations;
|
|
|
|
import android.bluetooth.BluetoothGatt;
|
|
import android.bluetooth.BluetoothGattCharacteristic;
|
|
import android.content.SharedPreferences;
|
|
import android.database.sqlite.SQLiteDatabase;
|
|
import android.preference.PreferenceManager;
|
|
import android.widget.Toast;
|
|
|
|
import org.slf4j.Logger;
|
|
import org.slf4j.LoggerFactory;
|
|
|
|
import java.io.IOException;
|
|
import java.text.DateFormat;
|
|
import java.util.Calendar;
|
|
import java.util.GregorianCalendar;
|
|
import java.util.UUID;
|
|
import java.util.concurrent.TimeUnit;
|
|
|
|
import nodomain.freeyourgadget.gadgetbridge.GBApplication;
|
|
import nodomain.freeyourgadget.gadgetbridge.R;
|
|
import nodomain.freeyourgadget.gadgetbridge.database.DBHandler;
|
|
import nodomain.freeyourgadget.gadgetbridge.devices.SampleProvider;
|
|
import nodomain.freeyourgadget.gadgetbridge.devices.miband.MiBandConst;
|
|
import nodomain.freeyourgadget.gadgetbridge.devices.miband.MiBandDateConverter;
|
|
import nodomain.freeyourgadget.gadgetbridge.devices.miband.MiBandSampleProvider;
|
|
import nodomain.freeyourgadget.gadgetbridge.devices.miband.MiBandService;
|
|
import nodomain.freeyourgadget.gadgetbridge.impl.GBActivitySample;
|
|
import nodomain.freeyourgadget.gadgetbridge.model.ActivitySample;
|
|
import nodomain.freeyourgadget.gadgetbridge.service.btle.TransactionBuilder;
|
|
import nodomain.freeyourgadget.gadgetbridge.service.btle.actions.SetDeviceBusyAction;
|
|
import nodomain.freeyourgadget.gadgetbridge.service.devices.miband.MiBandSupport;
|
|
import nodomain.freeyourgadget.gadgetbridge.util.DateTimeUtils;
|
|
import nodomain.freeyourgadget.gadgetbridge.util.GB;
|
|
|
|
//import java.util.concurrent.Executors;
|
|
//import java.util.concurrent.ScheduledExecutorService;
|
|
//import java.util.concurrent.ScheduledFuture;
|
|
|
|
/**
|
|
* An operation that fetches activity data. For every fetch, a new operation must
|
|
* be created, i.e. an operation may not be reused for multiple fetches.
|
|
*/
|
|
public class FetchActivityOperation extends AbstractMiBandOperation {
|
|
private static final Logger LOG = LoggerFactory.getLogger(FetchActivityOperation.class);
|
|
private static final byte[] fetch = new byte[]{MiBandService.COMMAND_FETCH_DATA};
|
|
|
|
//sometimes the Mi Band stops sending data, we confirm the part of the data transfer after some time
|
|
//private ScheduledExecutorService scheduleTaskExecutor;
|
|
//private ScheduledFuture scheduledTask;
|
|
|
|
private final int activityMetadataLength = 11;
|
|
|
|
//temporary buffer, size is a multiple of 60 because we want to store complete minutes (1 minute = 3 or 4 bytes)
|
|
private final int activityDataHolderSize;
|
|
private final boolean hasExtendedActivityData;
|
|
|
|
private static class ActivityStruct {
|
|
private final byte[] activityDataHolder;
|
|
private final int activityDataHolderSize;
|
|
//index of the buffer above
|
|
private int activityDataHolderProgress = 0;
|
|
//number of bytes we will get in a single data transfer, used as counter
|
|
private int activityDataRemainingBytes = 0;
|
|
//same as above, but remains untouched for the ack message
|
|
private int activityDataUntilNextHeader = 0;
|
|
//timestamp of the single data transfer, incremented to store each minute's data
|
|
private GregorianCalendar activityDataTimestampProgress = null;
|
|
//same as above, but remains untouched for the ack message
|
|
private GregorianCalendar activityDataTimestampToAck = null;
|
|
|
|
ActivityStruct(int activityDataHolderSize) {
|
|
this.activityDataHolderSize = activityDataHolderSize;
|
|
activityDataHolder = new byte[activityDataHolderSize];
|
|
}
|
|
|
|
public boolean hasRoomFor(byte[] value) {
|
|
return activityDataRemainingBytes >= value.length;
|
|
}
|
|
|
|
public boolean isValidData(byte[] value) {
|
|
//I don't like this clause, but until we figure out why we get different data sometimes this should work
|
|
return value.length == 20 || value.length == activityDataRemainingBytes;
|
|
}
|
|
|
|
public boolean isBufferFull() {
|
|
return activityDataHolderSize == activityDataHolderProgress;
|
|
}
|
|
|
|
public void buffer(byte[] value) {
|
|
System.arraycopy(value, 0, activityDataHolder, activityDataHolderProgress, value.length);
|
|
activityDataHolderProgress += value.length;
|
|
activityDataRemainingBytes -= value.length;
|
|
|
|
validate();
|
|
}
|
|
|
|
private void validate() {
|
|
GB.assertThat(activityDataRemainingBytes >= 0, "Illegal state, remaining bytes is negative");
|
|
}
|
|
|
|
public boolean isFirstChunk() {
|
|
return activityDataTimestampProgress == null;
|
|
}
|
|
|
|
public void startNewBlock(GregorianCalendar timestamp, int dataUntilNextHeader) {
|
|
GB.assertThat(timestamp != null, "Timestamp must not be null");
|
|
|
|
if (isFirstChunk()) {
|
|
activityDataTimestampProgress = timestamp;
|
|
} else {
|
|
if (timestamp.getTimeInMillis() >= activityDataTimestampProgress.getTimeInMillis()) {
|
|
activityDataTimestampProgress = timestamp;
|
|
} else {
|
|
// something is fishy here... better not trust the given timestamp and simply
|
|
// (re)use the current one
|
|
// we do accept the timestamp to ack though, so that the bogus data is properly cleared on the band
|
|
LOG.warn("Got bogus timestamp: " + timestamp.getTime() + " that is smaller than the previous timestamp: " + activityDataTimestampProgress.getTime());
|
|
}
|
|
}
|
|
activityDataTimestampToAck = (GregorianCalendar) timestamp.clone();
|
|
activityDataRemainingBytes = activityDataUntilNextHeader = dataUntilNextHeader;
|
|
validate();
|
|
}
|
|
|
|
public boolean isBlockFinished() {
|
|
return activityDataRemainingBytes == 0;
|
|
}
|
|
|
|
public void bufferFlushed(int minutes) {
|
|
activityDataTimestampProgress.add(Calendar.MINUTE, minutes);
|
|
activityDataHolderProgress = 0;
|
|
}
|
|
}
|
|
|
|
private ActivityStruct activityStruct;
|
|
|
|
public FetchActivityOperation(MiBandSupport support) {
|
|
super(support);
|
|
hasExtendedActivityData = support.getDeviceInfo().isMilli1S();
|
|
activityDataHolderSize = getBytesPerMinuteOfActivityData() * 60 * 4; // 4h
|
|
activityStruct = new ActivityStruct(activityDataHolderSize);
|
|
}
|
|
|
|
@Override
|
|
protected void doPerform() throws IOException {
|
|
// scheduleTaskExecutor = Executors.newScheduledThreadPool(1);
|
|
|
|
TransactionBuilder builder = performInitialized("fetch activity data");
|
|
// builder.write(getCharacteristic(MiBandService.UUID_CHARACTERISTIC_LE_PARAMS), getLowLatency());
|
|
builder.add(new SetDeviceBusyAction(getDevice(), getContext().getString(R.string.busy_task_fetch_activity_data), getContext()));
|
|
builder.write(getCharacteristic(MiBandService.UUID_CHARACTERISTIC_CONTROL_POINT), fetch);
|
|
builder.queue(getQueue());
|
|
}
|
|
|
|
@Override
|
|
public void onCharacteristicChanged(BluetoothGatt gatt,
|
|
BluetoothGattCharacteristic characteristic) {
|
|
UUID characteristicUUID = characteristic.getUuid();
|
|
if (MiBandService.UUID_CHARACTERISTIC_ACTIVITY_DATA.equals(characteristicUUID)) {
|
|
handleActivityNotif(characteristic.getValue());
|
|
} else {
|
|
super.onCharacteristicChanged(gatt, characteristic);
|
|
}
|
|
}
|
|
|
|
private void handleActivityFetchFinish() throws IOException {
|
|
LOG.info("Fetching activity data has finished.");
|
|
activityStruct = null;
|
|
operationFinished();
|
|
unsetBusy();
|
|
}
|
|
|
|
/**
|
|
* Method to handle the incoming activity data.
|
|
* There are two kind of messages we currently know:
|
|
* - the first one is 11 bytes long and contains metadata (how many bytes to expect, when the data starts, etc.)
|
|
* - the second one is 20 bytes long and contains the actual activity data
|
|
* <p/>
|
|
* The first message type is parsed by this method, for every other length of the value param, bufferActivityData is called.
|
|
*
|
|
* @param value
|
|
* @see #bufferActivityData(byte[])
|
|
*/
|
|
private void handleActivityNotif(byte[] value) {
|
|
if (!isOperationRunning()) {
|
|
LOG.error("ignoring activity data notification because operation is not running. Data length: " + value.length);
|
|
getSupport().logMessageContent(value);
|
|
return;
|
|
}
|
|
|
|
if (value.length == activityMetadataLength) {
|
|
handleActivityMetadata(value);
|
|
} else {
|
|
bufferActivityData(value);
|
|
}
|
|
LOG.debug("activity data: length: " + value.length + ", remaining bytes: " + activityStruct.activityDataRemainingBytes);
|
|
|
|
GB.updateTransferNotification(getContext().getString(R.string.busy_task_fetch_activity_data), true, (int) (((float) (activityStruct.activityDataUntilNextHeader - activityStruct.activityDataRemainingBytes)) / activityStruct.activityDataUntilNextHeader * 100), getContext());
|
|
|
|
if (activityStruct.isBlockFinished()) {
|
|
sendAckDataTransfer(activityStruct.activityDataTimestampToAck, activityStruct.activityDataUntilNextHeader);
|
|
GB.updateTransferNotification("", false, 100, getContext());
|
|
}
|
|
}
|
|
|
|
private void handleActivityMetadata(byte[] value) {
|
|
|
|
if (value.length != activityMetadataLength) {
|
|
return;
|
|
}
|
|
|
|
// byte 0 is the data type: 1 means that each minute is represented by a triplet of bytes
|
|
int dataType = value[0];
|
|
// byte 1 to 6 represent a timestamp
|
|
GregorianCalendar timestamp = MiBandDateConverter.rawBytesToCalendar(value, 1);
|
|
|
|
// counter of all data held by the band
|
|
int totalDataToRead = (value[7] & 0xff) | ((value[8] & 0xff) << 8);
|
|
totalDataToRead *= (dataType == MiBandService.MODE_REGULAR_DATA_LEN_MINUTE) ? getBytesPerMinuteOfActivityData() : 1;
|
|
|
|
|
|
// counter of this data block
|
|
int dataUntilNextHeader = (value[9] & 0xff) | ((value[10] & 0xff) << 8);
|
|
dataUntilNextHeader *= (dataType == MiBandService.MODE_REGULAR_DATA_LEN_MINUTE) ? getBytesPerMinuteOfActivityData() : 1;
|
|
|
|
// there is a total of totalDataToRead that will come in chunks (3 or 4 bytes per minute if dataType == 1 (MiBandService.MODE_REGULAR_DATA_LEN_MINUTE)),
|
|
// these chunks are usually 20 bytes long and grouped in blocks
|
|
// after dataUntilNextHeader bytes we will get a new packet of 11 bytes that should be parsed
|
|
// as we just did
|
|
|
|
if (activityStruct.isFirstChunk() && dataUntilNextHeader != 0) {
|
|
GB.toast(getContext().getString(R.string.user_feedback_miband_activity_data_transfer,
|
|
DateTimeUtils.formatDurationHoursMinutes((totalDataToRead / getBytesPerMinuteOfActivityData()), TimeUnit.MINUTES),
|
|
DateFormat.getDateTimeInstance().format(timestamp.getTime())), Toast.LENGTH_LONG, GB.INFO);
|
|
}
|
|
LOG.info("total data to read: " + totalDataToRead + " len: " + (totalDataToRead / getBytesPerMinuteOfActivityData()) + " minute(s)");
|
|
LOG.info("data to read until next header: " + dataUntilNextHeader + " len: " + (dataUntilNextHeader / getBytesPerMinuteOfActivityData()) + " minute(s)");
|
|
LOG.info("TIMESTAMP: " + DateFormat.getDateTimeInstance().format(timestamp.getTime()) + " magic byte: " + dataUntilNextHeader);
|
|
|
|
activityStruct.startNewBlock(timestamp, dataUntilNextHeader);
|
|
}
|
|
|
|
private int getBytesPerMinuteOfActivityData() {
|
|
return hasExtendedActivityData ? 4 : 3;
|
|
}
|
|
|
|
/**
|
|
* Method to store temporarily the activity data values got from the Mi Band.
|
|
* <p/>
|
|
* Since we expect chunks of 20 bytes each, we do not store the received bytes it the length is different.
|
|
*
|
|
* @param value
|
|
*/
|
|
private void bufferActivityData(byte[] value) {
|
|
/*
|
|
if (scheduledTask != null) {
|
|
scheduledTask.cancel(true);
|
|
}
|
|
*/
|
|
if (activityStruct.hasRoomFor(value)) {
|
|
if (activityStruct.isValidData(value)) {
|
|
activityStruct.buffer(value);
|
|
|
|
/* scheduledTask = scheduleTaskExecutor.schedule(new Runnable() {
|
|
@Override
|
|
public void run() {
|
|
GB.toast(getContext(), "chiederei " + activityStruct.activityDataTimestampToAck + " "+ activityStruct.activityDataUntilNextHeader, Toast.LENGTH_LONG, GB.ERROR);
|
|
//sendAckDataTransfer(activityStruct.activityDataTimestampToAck, activityStruct.activityDataUntilNextHeader);
|
|
LOG.debug("runnable called");
|
|
}
|
|
}, 10l, TimeUnit.SECONDS);
|
|
*/
|
|
if (activityStruct.isBufferFull()) {
|
|
flushActivityDataHolder();
|
|
}
|
|
} else {
|
|
// the length of the chunk is not what we expect. We need to make sense of this data
|
|
LOG.warn("GOT UNEXPECTED ACTIVITY DATA WITH LENGTH: " + value.length + ", EXPECTED LENGTH: " + activityStruct.activityDataRemainingBytes);
|
|
getSupport().logMessageContent(value);
|
|
}
|
|
} else {
|
|
GB.toast(getContext(), "error buffering activity data: remaining bytes: " + activityStruct.activityDataRemainingBytes + ", received: " + value.length, Toast.LENGTH_LONG, GB.ERROR);
|
|
try {
|
|
TransactionBuilder builder = performInitialized("send stop sync data");
|
|
builder.write(getCharacteristic(MiBandService.UUID_CHARACTERISTIC_CONTROL_POINT), new byte[]{MiBandService.COMMAND_STOP_SYNC_DATA});
|
|
builder.queue(getQueue());
|
|
GB.updateTransferNotification("Data transfer failed", false, 0, getContext());
|
|
handleActivityFetchFinish();
|
|
|
|
} catch (IOException e) {
|
|
LOG.error("error stopping activity sync", e);
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* empty the local buffer for activity data, arrange the values received in groups of three and
|
|
* store them in the DB
|
|
*/
|
|
private void flushActivityDataHolder() {
|
|
if (activityStruct == null) {
|
|
LOG.debug("nothing to flush, struct is already null");
|
|
return;
|
|
}
|
|
int bpm = getBytesPerMinuteOfActivityData();
|
|
LOG.debug("flushing activity data samples: " + activityStruct.activityDataHolderProgress / bpm);
|
|
byte category, intensity, steps, heartrate = 0;
|
|
|
|
DBHandler dbHandler = null;
|
|
try {
|
|
dbHandler = GBApplication.acquireDB();
|
|
int minutes = 0;
|
|
try (SQLiteDatabase db = dbHandler.getWritableDatabase()) { // explicitly keep the db open while looping over the samples
|
|
int timestampInSeconds = (int) (activityStruct.activityDataTimestampProgress.getTimeInMillis() / 1000);
|
|
if ((activityStruct.activityDataHolderProgress % bpm) != 0) {
|
|
throw new IllegalStateException("Unexpected data, progress should be mutiple of " + bpm + ": " + activityStruct.activityDataHolderProgress);
|
|
}
|
|
int numSamples = activityStruct.activityDataHolderProgress / bpm;
|
|
ActivitySample[] samples = new ActivitySample[numSamples];
|
|
SampleProvider sampleProvider = new MiBandSampleProvider();
|
|
int s = 0;
|
|
|
|
for (int i = 0; i < activityStruct.activityDataHolderProgress; i += bpm) {
|
|
category = activityStruct.activityDataHolder[i];
|
|
intensity = activityStruct.activityDataHolder[i + 1];
|
|
steps = activityStruct.activityDataHolder[i + 2];
|
|
if (hasExtendedActivityData) {
|
|
heartrate = activityStruct.activityDataHolder[i + 3];
|
|
LOG.debug("heartrate received: " + (heartrate & 0xff));
|
|
}
|
|
|
|
samples[minutes] = new GBActivitySample(
|
|
sampleProvider,
|
|
timestampInSeconds,
|
|
intensity & 0xff,
|
|
steps & 0xff,
|
|
category & 0xff,
|
|
heartrate & 0xff);
|
|
|
|
// next minute
|
|
minutes++;
|
|
timestampInSeconds += 60;
|
|
}
|
|
dbHandler.addGBActivitySamples(samples);
|
|
} finally {
|
|
activityStruct.bufferFlushed(minutes);
|
|
}
|
|
} catch (Exception ex) {
|
|
GB.toast(getContext(), ex.getMessage(), Toast.LENGTH_LONG, GB.ERROR, ex);
|
|
} finally {
|
|
if (dbHandler != null) {
|
|
dbHandler.release();
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Acknowledge the transfer of activity data to the Mi Band.
|
|
* <p/>
|
|
* After receiving data from the band, it has to be acknowledged. This way the Mi Band will delete
|
|
* the data it has on record.
|
|
*
|
|
* @param time
|
|
* @param bytesTransferred
|
|
*/
|
|
private void sendAckDataTransfer(Calendar time, int bytesTransferred) {
|
|
byte[] ackTime = MiBandDateConverter.calendarToRawBytes(time);
|
|
SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(GBApplication.getContext());
|
|
|
|
byte[] ackChecksum = new byte[]{
|
|
(byte) (bytesTransferred & 0xff),
|
|
(byte) (0xff & (bytesTransferred >> 8))
|
|
};
|
|
if (prefs.getBoolean(MiBandConst.PREF_MIBAND_DONT_ACK_TRANSFER, false)) {
|
|
ackChecksum = new byte[]{
|
|
(byte) (~bytesTransferred & 0xff),
|
|
(byte) (0xff & (~bytesTransferred >> 8))
|
|
};
|
|
}
|
|
byte[] ack = new byte[]{
|
|
MiBandService.COMMAND_CONFIRM_ACTIVITY_DATA_TRANSFER_COMPLETE,
|
|
ackTime[0],
|
|
ackTime[1],
|
|
ackTime[2],
|
|
ackTime[3],
|
|
ackTime[4],
|
|
ackTime[5],
|
|
ackChecksum[0],
|
|
ackChecksum[1]
|
|
};
|
|
try {
|
|
TransactionBuilder builder = performInitialized("send acknowledge");
|
|
builder.write(getCharacteristic(MiBandService.UUID_CHARACTERISTIC_CONTROL_POINT), ack);
|
|
builder.queue(getQueue());
|
|
|
|
// flush to the DB after queueing the ACK
|
|
flushActivityDataHolder();
|
|
|
|
//The last data chunk sent by the miband has always length 0.
|
|
//When we ack this chunk, the transfer is done.
|
|
if (getDevice().isBusy() && bytesTransferred == 0) {
|
|
//if we are not clearing miband's data, we have to stop the sync
|
|
if (prefs.getBoolean(MiBandConst.PREF_MIBAND_DONT_ACK_TRANSFER, false)) {
|
|
builder = performInitialized("send acknowledge");
|
|
builder.write(getCharacteristic(MiBandService.UUID_CHARACTERISTIC_CONTROL_POINT), new byte[]{MiBandService.COMMAND_STOP_SYNC_DATA});
|
|
builder.queue(getQueue());
|
|
}
|
|
handleActivityFetchFinish();
|
|
}
|
|
} catch (IOException ex) {
|
|
LOG.error("Unable to send ack to MI", ex);
|
|
}
|
|
}
|
|
}
|