https://source.android.com/ 
/*
 * Copyright (C) 2014 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 android.annotation.Nullable;
import android.os.Parcel;
import android.os.ParcelUuid;
import android.os.Parcelable;
import android.util.ArrayMap;
import android.util.SparseArray;

import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.Objects;


Advertise data packet container for Bluetooth LE advertising. This represents the data to be
advertised as well as the scan response data for active scans.

 Use Builder to create an instance of AdvertiseData to be advertised. 
See Also:
/**
 * Advertise data packet container for Bluetooth LE advertising. This represents the data to be
 * advertised as well as the scan response data for active scans.
 * <p>
 * Use {@link AdvertiseData.Builder} to create an instance of {@link AdvertiseData} to be
 * advertised.
 *
 * @see BluetoothLeAdvertiser
 * @see ScanRecord
 */
public final class AdvertiseData implements Parcelable {

    @Nullable
    private final List<ParcelUuid> mServiceUuids;

    private final SparseArray<byte[]> mManufacturerSpecificData;
    private final Map<ParcelUuid, byte[]> mServiceData;
    private final boolean mIncludeTxPowerLevel;
    private final boolean mIncludeDeviceName;

    private AdvertiseData(List<ParcelUuid> serviceUuids,
            SparseArray<byte[]> manufacturerData,
            Map<ParcelUuid, byte[]> serviceData,
            boolean includeTxPowerLevel,
            boolean includeDeviceName) {
        mServiceUuids = serviceUuids;
        mManufacturerSpecificData = manufacturerData;
        mServiceData = serviceData;
        mIncludeTxPowerLevel = includeTxPowerLevel;
        mIncludeDeviceName = includeDeviceName;
    }

    
Returns a list of service UUIDs within the advertisement that are used to identify the
Bluetooth GATT services.

/**
     * Returns a list of service UUIDs within the advertisement that are used to identify the
     * Bluetooth GATT services.
     */
    public List<ParcelUuid> getServiceUuids() {
        return mServiceUuids;
    }

    
Returns an array of manufacturer Id and the corresponding manufacturer specific data. The
manufacturer id is a non-negative number assigned by Bluetooth SIG.

/**
     * Returns an array of manufacturer Id and the corresponding manufacturer specific data. The
     * manufacturer id is a non-negative number assigned by Bluetooth SIG.
     */
    public SparseArray<byte[]> getManufacturerSpecificData() {
        return mManufacturerSpecificData;
    }

    
Returns a map of 16-bit UUID and its corresponding service data.

/**
     * Returns a map of 16-bit UUID and its corresponding service data.
     */
    public Map<ParcelUuid, byte[]> getServiceData() {
        return mServiceData;
    }

    
Whether the transmission power level will be included in the advertisement packet.

/**
     * Whether the transmission power level will be included in the advertisement packet.
     */
    public boolean getIncludeTxPowerLevel() {
        return mIncludeTxPowerLevel;
    }

    
Whether the device name will be included in the advertisement packet.

/**
     * Whether the device name will be included in the advertisement packet.
     */
    public boolean getIncludeDeviceName() {
        return mIncludeDeviceName;
    }

    
@hide
/**
     * @hide
     */
    @Override
    public int hashCode() {
        return Objects.hash(mServiceUuids, mManufacturerSpecificData, mServiceData,
                mIncludeDeviceName, mIncludeTxPowerLevel);
    }

    
@hide
/**
     * @hide
     */
    @Override
    public boolean equals(Object obj) {
        if (this == obj) {
            return true;
        }
        if (obj == null || getClass() != obj.getClass()) {
            return false;
        }
        AdvertiseData other = (AdvertiseData) obj;
        return Objects.equals(mServiceUuids, other.mServiceUuids)
                && BluetoothLeUtils.equals(mManufacturerSpecificData,
                    other.mManufacturerSpecificData)
                && BluetoothLeUtils.equals(mServiceData, other.mServiceData)
                && mIncludeDeviceName == other.mIncludeDeviceName
                && mIncludeTxPowerLevel == other.mIncludeTxPowerLevel;
    }

    @Override
    public String toString() {
        return "AdvertiseData [mServiceUuids=" + mServiceUuids + ", mManufacturerSpecificData="
                + BluetoothLeUtils.toString(mManufacturerSpecificData) + ", mServiceData="
                + BluetoothLeUtils.toString(mServiceData)
                + ", mIncludeTxPowerLevel=" + mIncludeTxPowerLevel + ", mIncludeDeviceName="
                + mIncludeDeviceName + "]";
    }

    @Override
    public int describeContents() {
        return 0;
    }

    @Override
    public void writeToParcel(Parcel dest, int flags) {
        dest.writeTypedArray(mServiceUuids.toArray(new ParcelUuid[mServiceUuids.size()]), flags);

        // mManufacturerSpecificData could not be null.
        dest.writeInt(mManufacturerSpecificData.size());
        for (int i = 0; i < mManufacturerSpecificData.size(); ++i) {
            dest.writeInt(mManufacturerSpecificData.keyAt(i));
            dest.writeByteArray(mManufacturerSpecificData.valueAt(i));
        }
        dest.writeInt(mServiceData.size());
        for (ParcelUuid uuid : mServiceData.keySet()) {
            dest.writeTypedObject(uuid, flags);
            dest.writeByteArray(mServiceData.get(uuid));
        }
        dest.writeByte((byte) (getIncludeTxPowerLevel() ? 1 : 0));
        dest.writeByte((byte) (getIncludeDeviceName() ? 1 : 0));
    }

    public static final Parcelable.Creator<AdvertiseData> CREATOR =
            new Creator<AdvertiseData>() {
                @Override
                public AdvertiseData[] newArray(int size) {
                    return new AdvertiseData[size];
                }

                @Override
                public AdvertiseData createFromParcel(Parcel in) {
                    Builder builder = new Builder();
                    ArrayList<ParcelUuid> uuids = in.createTypedArrayList(ParcelUuid.CREATOR);
                    for (ParcelUuid uuid : uuids) {
                        builder.addServiceUuid(uuid);
                    }

                    int manufacturerSize = in.readInt();
                    for (int i = 0; i < manufacturerSize; ++i) {
                        int manufacturerId = in.readInt();
                        byte[] manufacturerData = in.createByteArray();
                        builder.addManufacturerData(manufacturerId, manufacturerData);
                    }
                    int serviceDataSize = in.readInt();
                    for (int i = 0; i < serviceDataSize; ++i) {
                        ParcelUuid serviceDataUuid = in.readTypedObject(ParcelUuid.CREATOR);
                        byte[] serviceData = in.createByteArray();
                        builder.addServiceData(serviceDataUuid, serviceData);
                    }
                    builder.setIncludeTxPowerLevel(in.readByte() == 1);
                    builder.setIncludeDeviceName(in.readByte() == 1);
                    return builder.build();
                }
            };

    
Builder for AdvertiseData. 
/**
     * Builder for {@link AdvertiseData}.
     */
    public static final class Builder {
        @Nullable
        private List<ParcelUuid> mServiceUuids = new ArrayList<ParcelUuid>();
        private SparseArray<byte[]> mManufacturerSpecificData = new SparseArray<byte[]>();
        private Map<ParcelUuid, byte[]> mServiceData = new ArrayMap<ParcelUuid, byte[]>();
        private boolean mIncludeTxPowerLevel;
        private boolean mIncludeDeviceName;

        
Add a service UUID to advertise data.

Params:
  • serviceUuid – A service UUID to be advertised.
Throws:
/**
         * Add a service UUID to advertise data.
         *
         * @param serviceUuid A service UUID to be advertised.
         * @throws IllegalArgumentException If the {@code serviceUuids} are null.
         */
        public Builder addServiceUuid(ParcelUuid serviceUuid) {
            if (serviceUuid == null) {
                throw new IllegalArgumentException("serivceUuids are null");
            }
            mServiceUuids.add(serviceUuid);
            return this;
        }

        
Add service data to advertise data.

Params:
  • serviceDataUuid – 16-bit UUID of the service the data is associated with
  • serviceData – Service data
Throws:
/**
         * Add service data to advertise data.
         *
         * @param serviceDataUuid 16-bit UUID of the service the data is associated with
         * @param serviceData Service data
         * @throws IllegalArgumentException If the {@code serviceDataUuid} or {@code serviceData} is
         * empty.
         */
        public Builder addServiceData(ParcelUuid serviceDataUuid, byte[] serviceData) {
            if (serviceDataUuid == null || serviceData == null) {
                throw new IllegalArgumentException(
                        "serviceDataUuid or serviceDataUuid is null");
            }
            mServiceData.put(serviceDataUuid, serviceData);
            return this;
        }

        
Add manufacturer specific data.


Please refer to the Bluetooth Assigned Numbers document provided by the Bluetooth SIG for a list of existing company
identifiers.

Params:
  • manufacturerId – Manufacturer ID assigned by Bluetooth SIG.
  • manufacturerSpecificData – Manufacturer specific data
Throws:
/**
         * Add manufacturer specific data.
         * <p>
         * Please refer to the Bluetooth Assigned Numbers document provided by the <a
         * href="https://www.bluetooth.org">Bluetooth SIG</a> for a list of existing company
         * identifiers.
         *
         * @param manufacturerId Manufacturer ID assigned by Bluetooth SIG.
         * @param manufacturerSpecificData Manufacturer specific data
         * @throws IllegalArgumentException If the {@code manufacturerId} is negative or {@code
         * manufacturerSpecificData} is null.
         */
        public Builder addManufacturerData(int manufacturerId, byte[] manufacturerSpecificData) {
            if (manufacturerId < 0) {
                throw new IllegalArgumentException(
                        "invalid manufacturerId - " + manufacturerId);
            }
            if (manufacturerSpecificData == null) {
                throw new IllegalArgumentException("manufacturerSpecificData is null");
            }
            mManufacturerSpecificData.put(manufacturerId, manufacturerSpecificData);
            return this;
        }

        
Whether the transmission power level should be included in the advertise packet. Tx power
level field takes 3 bytes in advertise packet.

/**
         * Whether the transmission power level should be included in the advertise packet. Tx power
         * level field takes 3 bytes in advertise packet.
         */
        public Builder setIncludeTxPowerLevel(boolean includeTxPowerLevel) {
            mIncludeTxPowerLevel = includeTxPowerLevel;
            return this;
        }

        
Set whether the device name should be included in advertise packet.

/**
         * Set whether the device name should be included in advertise packet.
         */
        public Builder setIncludeDeviceName(boolean includeDeviceName) {
            mIncludeDeviceName = includeDeviceName;
            return this;
        }

        
Build the AdvertiseData. 
/**
         * Build the {@link AdvertiseData}.
         */
        public AdvertiseData build() {
            return new AdvertiseData(mServiceUuids, mManufacturerSpecificData, mServiceData,
                    mIncludeTxPowerLevel, mIncludeDeviceName);
        }
    }
}