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Code Issues Releases Wiki Activity

BtLEQueue: make NotifyAction more verbose

This commit is contained in:
MrYoranimo 2024-03-13 18:29:27 +01:00 committed by José Rebelo
parent 3ad389d57d
commit cb44982edb
1 changed files with 63 additions and 8 deletions
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71
app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/btle/actions/NotifyAction.java
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@ -20,6 +20,8 @@ import android.bluetooth.BluetoothGatt;
import android.bluetooth.BluetoothGattCallback;
import android.bluetooth.BluetoothGattCharacteristic;
import android.bluetooth.BluetoothGattDescriptor;
import android.bluetooth.BluetoothStatusCodes;
import android.os.Build;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
@ -27,6 +29,9 @@ import org.slf4j.LoggerFactory;
import nodomain.freeyourgadget.gadgetbridge.service.btle.BtLEAction;
import static nodomain.freeyourgadget.gadgetbridge.service.btle.GattDescriptor.UUID_DESCRIPTOR_GATT_CLIENT_CHARACTERISTIC_CONFIGURATION;
import androidx.annotation.RequiresPermission;
/**
* Enables or disables notifications for a given GATT characteristic.
* The result will be made available asynchronously through the
@ -36,28 +41,77 @@ public class NotifyAction extends BtLEAction {
private static final Logger LOG = LoggerFactory.getLogger(NotifyAction.class);
protected final boolean enableFlag;
private boolean hasWrittenDescriptor = true;
private boolean hasWrittenDescriptor = false;
public NotifyAction(BluetoothGattCharacteristic characteristic, boolean enable) {
super(characteristic);
enableFlag = enable;
}
@RequiresPermission("android.permission.BLUETOOTH_CONNECT")
private boolean writeDescriptor(final BluetoothGatt gatt, final BluetoothGattDescriptor descriptor, final byte[] value) {
if (gatt == null) {
LOG.error("gatt == null");
return false;
}
if (descriptor == null) {
LOG.error("descriptor == null");
return false;
}
final String charUuid = descriptor.getCharacteristic().getUuid().toString();
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {
// use API introduced in SDK level 33 to catch exceptions and more specific errors
try {
final int result = gatt.writeDescriptor(descriptor, value);
if (result != BluetoothStatusCodes.SUCCESS) {
LOG.error("Writing characteristic {} descriptor failed: {}", charUuid, result);
return false;
}
} catch (final SecurityException ex) {
LOG.error("SecurityException while writing to characteristic {} descriptor: {}", charUuid, ex.getMessage(), ex);
return false;
}
} else {
if (!descriptor.setValue(value)) {
LOG.error("Updating descriptor value on characteristic {} failed", charUuid);
return false;
}
if (!gatt.writeDescriptor(descriptor)) {
LOG.error("Writing descriptor on characteristic {} failed", charUuid);
return false;
}
}
LOG.debug("Successfully written characteristic {} descriptor", charUuid);
return true;
}
@Override
@RequiresPermission("android.permission.BLUETOOTH_CONNECT")
public boolean run(BluetoothGatt gatt) {
// register gatt's callback to receive notifications
boolean result = gatt.setCharacteristicNotification(getCharacteristic(), enableFlag);
if (result) {
BluetoothGattDescriptor notifyDescriptor = getCharacteristic().getDescriptor(UUID_DESCRIPTOR_GATT_CLIENT_CHARACTERISTIC_CONFIGURATION);
if (notifyDescriptor != null) {
BluetoothGattDescriptor clientCharConfigDescriptor = getCharacteristic().getDescriptor(UUID_DESCRIPTOR_GATT_CLIENT_CHARACTERISTIC_CONFIGURATION);
if (clientCharConfigDescriptor != null) {
int properties = getCharacteristic().getProperties();
if ((properties & BluetoothGattCharacteristic.PROPERTY_NOTIFY) > 0) {
LOG.debug("use NOTIFICATION for Characteristic " + getCharacteristic().getUuid());
notifyDescriptor.setValue(enableFlag ? BluetoothGattDescriptor.ENABLE_NOTIFICATION_VALUE : BluetoothGattDescriptor.DISABLE_NOTIFICATION_VALUE);
result = gatt.writeDescriptor(notifyDescriptor);
final byte[] value = enableFlag ? BluetoothGattDescriptor.ENABLE_NOTIFICATION_VALUE : BluetoothGattDescriptor.DISABLE_NOTIFICATION_VALUE;
result = writeDescriptor(gatt, clientCharConfigDescriptor, value);
hasWrittenDescriptor = true;
} else if ((properties & BluetoothGattCharacteristic.PROPERTY_INDICATE) > 0) {
LOG.debug("use INDICATION for Characteristic " + getCharacteristic().getUuid());
notifyDescriptor.setValue(enableFlag ? BluetoothGattDescriptor.ENABLE_INDICATION_VALUE : BluetoothGattDescriptor.DISABLE_NOTIFICATION_VALUE);
result = gatt.writeDescriptor(notifyDescriptor);
final byte[] value = enableFlag ? BluetoothGattDescriptor.ENABLE_INDICATION_VALUE : BluetoothGattDescriptor.DISABLE_NOTIFICATION_VALUE;
result = writeDescriptor(gatt, clientCharConfigDescriptor, value);
hasWrittenDescriptor = true;
} else {
LOG.debug("use neither NOTIFICATION nor INDICATION for Characteristic " + getCharacteristic().getUuid());
@ -68,9 +122,10 @@ public class NotifyAction extends BtLEAction {
hasWrittenDescriptor = false;
}
} else {
LOG.error("Unable to enable notifications for " + getCharacteristic().getUuid());
hasWrittenDescriptor = false;
LOG.error("Unable to enable notification for " + getCharacteristic().getUuid());
}
return result;
}