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Bugs fixed in CGMS

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This commit is contained in:
Aleksander Nowakowski
2018-04-25 09:40:55 +02:00
parent 01cf1a56d8
commit db3e4c8cd7
1 changed files with 74 additions and 9 deletions
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73
app/src/main/java/no/nordicsemi/android/nrftoolbox/cgms/CGMSManager.java
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@@ -34,7 +34,9 @@ import android.util.SparseArray;
import java.util.UUID;
import no.nordicsemi.android.ble.common.callback.RecordAccessControlPointDataCallback;
import no.nordicsemi.android.ble.common.callback.cgm.CGMFeatureDataCallback;
import no.nordicsemi.android.ble.common.callback.cgm.CGMSpecificOpsControlPointDataCallback;
import no.nordicsemi.android.ble.common.callback.cgm.CGMStatusDataCallback;
import no.nordicsemi.android.ble.common.callback.cgm.ContinuousGlucoseMeasurementDataCallback;
import no.nordicsemi.android.ble.common.data.RecordAccessControlPointData;
import no.nordicsemi.android.ble.common.data.cgm.CGMSpecificOpsControlPointData;
@@ -52,6 +54,7 @@ public class CGMSManager extends BatteryManager<CGMSManagerCallbacks> {
* Cycling Speed and Cadence service UUID
*/
public static final UUID CGMS_UUID = UUID.fromString("0000181F-0000-1000-8000-00805f9b34fb");
private static final UUID CGM_STATUS_UUID = UUID.fromString("00002AA9-0000-1000-8000-00805f9b34fb");
private static final UUID CGM_FEAURE_UUID = UUID.fromString("00002AA8-0000-1000-8000-00805f9b34fb");
private static final UUID CGM_MEASUREMENT_UUID = UUID.fromString("00002AA7-0000-1000-8000-00805f9b34fb");
private static final UUID CGM_OPS_CONTROL_POINT_UUID = UUID.fromString("00002AAC-0000-1000-8000-00805f9b34fb");
@@ -60,15 +63,22 @@ public class CGMSManager extends BatteryManager<CGMSManagerCallbacks> {
*/
private static final UUID RACP_UUID = UUID.fromString("00002A52-0000-1000-8000-00805f9b34fb");
private BluetoothGattCharacteristic mCGMStatusCharacteristic;
private BluetoothGattCharacteristic mCGMFeatureCharacteristic;
private BluetoothGattCharacteristic mCGMMeasurementCharacteristic;
private BluetoothGattCharacteristic mCGMSpecificOpsControlPointCharacteristic;
private BluetoothGattCharacteristic mRecordAccessControlPointCharacteristic;
private SparseArray<CGMSRecord> mRecords = new SparseArray<>();
private boolean mAbort;
/** A flag set to true if the remote device supports E2E CRC. */
private boolean mSecured;
/**
* A flag set when records has been requested using RACP. This is to distinguish CGM packets received
* as continuous measurements or requested.
*/
private boolean mRecordAccessRequestInProgress;
/** The timestamp when the session has started. This is needed to display the user facing times of samples. */
private long mSessionStartTime;
CGMSManager(final Context context) {
@@ -90,6 +100,30 @@ public class CGMSManager extends BatteryManager<CGMSManagerCallbacks> {
// Enable Battery service
super.initialize(device);
// Read CGM Feature characteristic, mainly to see if the device supports E2E CRC.
// This is not supported in the experimental CGMS from the SDK.
readCharacteristic(mCGMFeatureCharacteristic)
.with(new CGMFeatureDataCallback() {
@Override
public void onContinuousGlucoseMonitorFeaturesReceived(@NonNull final BluetoothDevice device, @NonNull final CGMFeatures features,
final int type, final int sampleLocation, final boolean secured) {
mSecured = features.e2eCrcSupported;
log(LogContract.Log.Level.APPLICATION, "E2E CRC feature " + (mSecured ? "supported" : "not supported"));
}
}).fail(status -> log(LogContract.Log.Level.WARNING, "Could not read CGM Feature characteristic"));
// Check if the session is already started. This is not supported in the experimental CGMS from the SDK.
readCharacteristic(mCGMStatusCharacteristic)
.with(new CGMStatusDataCallback() {
@Override
public void onContinuousGlucoseMonitorStatusChanged(@NonNull final BluetoothDevice device, @NonNull final CGMStatus status, final int timeOffset, final boolean secured) {
if (!status.sessionStopped) {
mSessionStartTime = System.currentTimeMillis() - timeOffset * 60000L;
log(LogContract.Log.Level.APPLICATION, "Session already started");
}
}
}).fail(status -> log(LogContract.Log.Level.WARNING, "Could not read CGM Status characteristic"));
// Enable Continuous Glucose Measurement notifications
enableNotifications(mCGMMeasurementCharacteristic)
.with(new ContinuousGlucoseMeasurementDataCallback() {
@@ -101,8 +135,17 @@ public class CGMSManager extends BatteryManager<CGMSManagerCallbacks> {
@Override
public void onContinuousGlucoseMeasurementReceived(@NonNull final BluetoothDevice device, final float glucoseConcentration, @Nullable final Float cgmTrend, @Nullable final Float cgmQuality, final CGMStatus status, final int timeOffset, final boolean secured) {
// If the CGM Status characteristic has not been read and the session was already started before,
// estimate the Session Start Time by subtracting timeOffset minutes from the current timestamp.
if (mSessionStartTime == 0 && !mRecordAccessRequestInProgress) {
mSessionStartTime = System.currentTimeMillis() - timeOffset * 60000L;
}
// Calculate the sample timestamp based on the Session Start Time
final long timestamp = mSessionStartTime + (timeOffset * 60000L); // Sequence number is in minutes since Start Session
final CGMSRecord record = new CGMSRecord(timeOffset, glucoseConcentration, timestamp);
mRecords.put(record.sequenceNumber, record);
mCallbacks.onCGMValueReceived(device, record);
}
@@ -128,13 +171,21 @@ public class CGMSManager extends BatteryManager<CGMSManagerCallbacks> {
case CGM_OP_CODE_START_SESSION:
mSessionStartTime = System.currentTimeMillis();
break;
case CGM_OP_CODE_STOP_SESSION:
mSessionStartTime = 0;
break;
}
}
@Override
public void onCGMSpecificOpsOperationError(@NonNull final BluetoothDevice device, final int requestCode, final int error, final boolean secured) {
public void onCGMSpecificOpsOperationError(@NonNull final BluetoothDevice device, final int requestCode, final int errorCode, final boolean secured) {
switch (requestCode) {
case CGM_OP_CODE_START_SESSION:
if (errorCode == CGM_ERROR_PROCEDURE_NOT_COMPLETED) {
// Session was already started before.
// Looks like the CGM Status characteristic has not been read, otherwise we would have got the Session Start Time before.
// The Session Start Time will be calculated when a next CGM packet is received based on it's Time Offset.
}
case CGM_OP_CODE_STOP_SESSION:
mSessionStartTime = 0;
break;
@@ -162,6 +213,7 @@ public class CGMSManager extends BatteryManager<CGMSManagerCallbacks> {
mCallbacks.onOperationAborted(device);
break;
default:
mRecordAccessRequestInProgress = false;
mCallbacks.onOperationCompleted(device);
break;
}
@@ -169,6 +221,7 @@ public class CGMSManager extends BatteryManager<CGMSManagerCallbacks> {
@Override
public void onRecordAccessOperationCompletedWithNoRecordsFound(@NonNull final BluetoothDevice device, final int requestCode) {
mRecordAccessRequestInProgress = false;
mCallbacks.onOperationCompleted(device);
}
@@ -176,9 +229,14 @@ public class CGMSManager extends BatteryManager<CGMSManagerCallbacks> {
public void onNumberOfRecordsReceived(@NonNull final BluetoothDevice device, final int numberOfRecords) {
mCallbacks.onNumberOfRecordsRequested(device, numberOfRecords);
if (numberOfRecords > 0) {
if (mRecords.size() > 0) {
final int sequenceNumber = mRecords.keyAt(mRecords.size() - 1) + 1;
writeCharacteristic(mRecordAccessControlPointCharacteristic, RecordAccessControlPointData.reportStoredRecordsGreaterThenOrEqualTo(sequenceNumber));
} else {
writeCharacteristic(mRecordAccessControlPointCharacteristic, RecordAccessControlPointData.reportAllStoredRecords());
}
} else {
mRecordAccessRequestInProgress = false;
mCallbacks.onOperationCompleted(device);
}
}
@@ -195,16 +253,19 @@ public class CGMSManager extends BatteryManager<CGMSManagerCallbacks> {
})
.fail((error) -> log(LogContract.Log.Level.WARNING, "Failed to enabled Record Access Control Point indications (error " + error + ")"));
// Start Continuous Glucose session
// Start Continuous Glucose session if hasn't been started before
if (mSessionStartTime == 0L) {
writeCharacteristic(mCGMSpecificOpsControlPointCharacteristic, CGMSpecificOpsControlPointData.startSession(mSecured))
.done(() -> log(LogContract.Log.Level.APPLICATION, "\"" + CGMSpecificOpsControlPointParser.parse(mCGMSpecificOpsControlPointCharacteristic) + "\" sent"))
.fail((error) -> log(LogContract.Log.Level.ERROR, "Failed to start session (error " + error + ")"));
}
}
@Override
protected boolean isRequiredServiceSupported(@NonNull final BluetoothGatt gatt) {
final BluetoothGattService service = gatt.getService(CGMS_UUID);
if (service != null) {
mCGMStatusCharacteristic = service.getCharacteristic(CGM_STATUS_UUID);
mCGMFeatureCharacteristic = service.getCharacteristic(CGM_FEAURE_UUID);
mCGMMeasurementCharacteristic = service.getCharacteristic(CGM_MEASUREMENT_UUID);
mCGMSpecificOpsControlPointCharacteristic = service.getCharacteristic(CGM_OPS_CONTROL_POINT_UUID);
@@ -217,6 +278,7 @@ public class CGMSManager extends BatteryManager<CGMSManagerCallbacks> {
@Override
protected void onDeviceDisconnected() {
super.onDeviceDisconnected();
mCGMStatusCharacteristic = null;
mCGMFeatureCharacteristic = null;
mCGMMeasurementCharacteristic = null;
mCGMSpecificOpsControlPointCharacteristic = null;
@@ -249,6 +311,7 @@ public class CGMSManager extends BatteryManager<CGMSManagerCallbacks> {
clear();
mCallbacks.onOperationStarted(getBluetoothDevice());
mRecordAccessRequestInProgress = true;
writeCharacteristic(mRecordAccessControlPointCharacteristic, RecordAccessControlPointData.reportLastStoredRecord());
}
@@ -263,6 +326,7 @@ public class CGMSManager extends BatteryManager<CGMSManagerCallbacks> {
clear();
mCallbacks.onOperationStarted(getBluetoothDevice());
mRecordAccessRequestInProgress = true;
writeCharacteristic(mRecordAccessControlPointCharacteristic, RecordAccessControlPointData.reportFirstStoredRecord());
}
@@ -273,7 +337,6 @@ public class CGMSManager extends BatteryManager<CGMSManagerCallbacks> {
if (mRecordAccessControlPointCharacteristic == null)
return;
mAbort = true;
writeCharacteristic(mRecordAccessControlPointCharacteristic, RecordAccessControlPointData.abortOperation());
}
@@ -289,6 +352,7 @@ public class CGMSManager extends BatteryManager<CGMSManagerCallbacks> {
clear();
mCallbacks.onOperationStarted(getBluetoothDevice());
mRecordAccessRequestInProgress = true;
writeCharacteristic(mRecordAccessControlPointCharacteristic, RecordAccessControlPointData.reportNumberOfAllStoredRecords());
}
@@ -309,6 +373,7 @@ public class CGMSManager extends BatteryManager<CGMSManagerCallbacks> {
// Obtain the last sequence number
final int sequenceNumber = mRecords.keyAt(mRecords.size() - 1) + 1;
mRecordAccessRequestInProgress = true;
writeCharacteristic(mRecordAccessControlPointCharacteristic, RecordAccessControlPointData.reportStoredRecordsGreaterThenOrEqualTo(sequenceNumber));
// Info:
// Operators OPERATOR_GREATER_THEN_OR_EQUAL, OPERATOR_LESS_THEN_OR_EQUAL and OPERATOR_RANGE are not supported by the CGMS sample from SDK