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/*
* Copyright (C) 2017 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package android.bluetooth.le;
import static android.bluetooth.le.BluetoothLeUtils.getSyncTimeout;
import android.annotation.RequiresNoPermission;
import android.annotation.RequiresPermission;
import android.bluetooth.BluetoothAdapter;
import android.bluetooth.IBluetoothGatt;
import android.bluetooth.IBluetoothManager;
import android.bluetooth.annotations.RequiresBluetoothAdvertisePermission;
import android.bluetooth.annotations.RequiresLegacyBluetoothAdminPermission;
import android.content.AttributionSource;
import android.os.RemoteException;
import android.util.Log;
import com.android.modules.utils.SynchronousResultReceiver;
import java.util.concurrent.TimeoutException;
/**
* This class provides a way to control single Bluetooth LE advertising instance.
* <p>
* To get an instance of {@link AdvertisingSet}, call the
* {@link BluetoothLeAdvertiser#startAdvertisingSet} method.
*
* @see AdvertiseData
*/
public final class AdvertisingSet {
private static final String TAG = "AdvertisingSet";
private final IBluetoothGatt mGatt;
private int mAdvertiserId;
private AttributionSource mAttributionSource;
/* package */ AdvertisingSet(int advertiserId, IBluetoothManager bluetoothManager,
AttributionSource attributionSource) {
mAdvertiserId = advertiserId;
mAttributionSource = attributionSource;
try {
mGatt = bluetoothManager.getBluetoothGatt();
} catch (RemoteException e) {
Log.e(TAG, "Failed to get Bluetooth gatt - ", e);
throw new IllegalStateException("Failed to get Bluetooth");
}
}
/* package */ void setAdvertiserId(int advertiserId) {
mAdvertiserId = advertiserId;
}
/**
* Enables Advertising. This method returns immediately, the operation status is
* delivered through {@code callback.onAdvertisingEnabled()}.
*
* @param enable whether the advertising should be enabled (true), or disabled (false)
* @param duration advertising duration, in 10ms unit. Valid range is from 1 (10ms) to 65535
* (655,350 ms)
* @param maxExtendedAdvertisingEvents maximum number of extended advertising events the
* controller shall attempt to send prior to terminating the extended advertising, even if the
* duration has not expired. Valid range is from 1 to 255.
*/
@RequiresLegacyBluetoothAdminPermission
@RequiresBluetoothAdvertisePermission
@RequiresPermission(android.Manifest.permission.BLUETOOTH_ADVERTISE)
public void enableAdvertising(boolean enable, int duration,
int maxExtendedAdvertisingEvents) {
try {
final SynchronousResultReceiver recv = new SynchronousResultReceiver();
mGatt.enableAdvertisingSet(mAdvertiserId, enable, duration,
maxExtendedAdvertisingEvents, mAttributionSource, recv);
recv.awaitResultNoInterrupt(getSyncTimeout()).getValue(null);
} catch (TimeoutException | RemoteException e) {
Log.e(TAG, "remote exception - ", e);
}
}
/**
* Set/update data being Advertised. Make sure that data doesn't exceed the size limit for
* specified AdvertisingSetParameters. This method returns immediately, the operation status is
* delivered through {@code callback.onAdvertisingDataSet()}.
* <p>
* Advertising data must be empty if non-legacy scannable advertising is used.
*
* @param advertiseData Advertisement data to be broadcasted. Size must not exceed {@link
* BluetoothAdapter#getLeMaximumAdvertisingDataLength}. If the advertisement is connectable,
* three bytes will be added for flags. If the update takes place when the advertising set is
* enabled, the data can be maximum 251 bytes long.
*/
@RequiresLegacyBluetoothAdminPermission
@RequiresBluetoothAdvertisePermission
@RequiresPermission(android.Manifest.permission.BLUETOOTH_ADVERTISE)
public void setAdvertisingData(AdvertiseData advertiseData) {
try {
final SynchronousResultReceiver recv = new SynchronousResultReceiver();
mGatt.setAdvertisingData(mAdvertiserId, advertiseData, mAttributionSource, recv);
recv.awaitResultNoInterrupt(getSyncTimeout()).getValue(null);
} catch (TimeoutException | RemoteException e) {
Log.e(TAG, "remote exception - ", e);
}
}
/**
* Set/update scan response data. Make sure that data doesn't exceed the size limit for
* specified AdvertisingSetParameters. This method returns immediately, the operation status
* is delivered through {@code callback.onScanResponseDataSet()}.
*
* @param scanResponse Scan response associated with the advertisement data. Size must not
* exceed {@link BluetoothAdapter#getLeMaximumAdvertisingDataLength}. If the update takes place
* when the advertising set is enabled, the data can be maximum 251 bytes long.
*/
@RequiresLegacyBluetoothAdminPermission
@RequiresBluetoothAdvertisePermission
@RequiresPermission(android.Manifest.permission.BLUETOOTH_ADVERTISE)
public void setScanResponseData(AdvertiseData scanResponse) {
try {
final SynchronousResultReceiver recv = new SynchronousResultReceiver();
mGatt.setScanResponseData(mAdvertiserId, scanResponse, mAttributionSource, recv);
recv.awaitResultNoInterrupt(getSyncTimeout()).getValue(null);
} catch (TimeoutException | RemoteException e) {
Log.e(TAG, "remote exception - ", e);
}
}
/**
* Update advertising parameters associated with this AdvertisingSet. Must be called when
* advertising is not active. This method returns immediately, the operation status is delivered
* through {@code callback.onAdvertisingParametersUpdated}.
*
* @param parameters advertising set parameters.
*/
@RequiresLegacyBluetoothAdminPermission
@RequiresBluetoothAdvertisePermission
@RequiresPermission(android.Manifest.permission.BLUETOOTH_ADVERTISE)
public void setAdvertisingParameters(AdvertisingSetParameters parameters) {
try {
final SynchronousResultReceiver recv = new SynchronousResultReceiver();
mGatt.setAdvertisingParameters(mAdvertiserId, parameters, mAttributionSource, recv);
recv.awaitResultNoInterrupt(getSyncTimeout()).getValue(null);
} catch (TimeoutException | RemoteException e) {
Log.e(TAG, "remote exception - ", e);
}
}
/**
* Update periodic advertising parameters associated with this set. Must be called when
* periodic advertising is not enabled. This method returns immediately, the operation
* status is delivered through {@code callback.onPeriodicAdvertisingParametersUpdated()}.
*/
@RequiresLegacyBluetoothAdminPermission
@RequiresBluetoothAdvertisePermission
@RequiresPermission(android.Manifest.permission.BLUETOOTH_ADVERTISE)
public void setPeriodicAdvertisingParameters(PeriodicAdvertisingParameters parameters) {
try {
final SynchronousResultReceiver recv = new SynchronousResultReceiver();
mGatt.setPeriodicAdvertisingParameters(mAdvertiserId, parameters, mAttributionSource,
recv);
recv.awaitResultNoInterrupt(getSyncTimeout()).getValue(null);
} catch (TimeoutException | RemoteException e) {
Log.e(TAG, "remote exception - ", e);
}
}
/**
* Used to set periodic advertising data, must be called after setPeriodicAdvertisingParameters,
* or after advertising was started with periodic advertising data set. This method returns
* immediately, the operation status is delivered through
* {@code callback.onPeriodicAdvertisingDataSet()}.
*
* @param periodicData Periodic advertising data. Size must not exceed {@link
* BluetoothAdapter#getLeMaximumAdvertisingDataLength}. If the update takes place when the
* periodic advertising is enabled for this set, the data can be maximum 251 bytes long.
*/
@RequiresLegacyBluetoothAdminPermission
@RequiresBluetoothAdvertisePermission
@RequiresPermission(android.Manifest.permission.BLUETOOTH_ADVERTISE)
public void setPeriodicAdvertisingData(AdvertiseData periodicData) {
try {
final SynchronousResultReceiver recv = new SynchronousResultReceiver();
mGatt.setPeriodicAdvertisingData(mAdvertiserId, periodicData, mAttributionSource, recv);
recv.awaitResultNoInterrupt(getSyncTimeout()).getValue(null);
} catch (TimeoutException | RemoteException e) {
Log.e(TAG, "remote exception - ", e);
}
}
/**
* Used to enable/disable periodic advertising. This method returns immediately, the operation
* status is delivered through {@code callback.onPeriodicAdvertisingEnable()}.
*
* @param enable whether the periodic advertising should be enabled (true), or disabled
* (false).
*/
@RequiresLegacyBluetoothAdminPermission
@RequiresBluetoothAdvertisePermission
@RequiresPermission(android.Manifest.permission.BLUETOOTH_ADVERTISE)
public void setPeriodicAdvertisingEnabled(boolean enable) {
try {
final SynchronousResultReceiver recv = new SynchronousResultReceiver();
mGatt.setPeriodicAdvertisingEnable(mAdvertiserId, enable, mAttributionSource, recv);
recv.awaitResultNoInterrupt(getSyncTimeout()).getValue(null);
} catch (TimeoutException | RemoteException e) {
Log.e(TAG, "remote exception - ", e);
}
}
/**
* Returns address associated with this advertising set.
* This method is exposed only for Bluetooth PTS tests, no app or system service
* should ever use it.
*
* @hide
*/
@RequiresBluetoothAdvertisePermission
@RequiresPermission(allOf = {
android.Manifest.permission.BLUETOOTH_ADVERTISE,
android.Manifest.permission.BLUETOOTH_PRIVILEGED,
})
public void getOwnAddress() {
try {
final SynchronousResultReceiver recv = new SynchronousResultReceiver();
mGatt.getOwnAddress(mAdvertiserId, mAttributionSource, recv);
recv.awaitResultNoInterrupt(getSyncTimeout()).getValue(null);
} catch (TimeoutException | RemoteException e) {
Log.e(TAG, "remote exception - ", e);
}
}
/**
* Returns advertiserId associated with this advertising set.
*
* @hide
*/
@RequiresNoPermission
public int getAdvertiserId() {
return mAdvertiserId;
}
}
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