android-35/android/nearby/FastPairDevice.java - platform/prebuilts/fullsdk/sources - Git at Google

 /*
  * Copyright (C) 2021 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.nearby;

 import android.annotation.IntRange;
 import android.annotation.NonNull;
 import android.annotation.Nullable;
 import android.os.Parcel;
 import android.os.Parcelable;

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

 /**
  * A class represents a Fast Pair device that can be discovered by multiple mediums.
  *
  * @hide
  */
 public class FastPairDevice extends NearbyDevice implements Parcelable {
     /**
      * Used to read a FastPairDevice from a Parcel.
      */
     public static final Creator<FastPairDevice> CREATOR = new Creator<FastPairDevice>() {
         @Override
         public FastPairDevice createFromParcel(Parcel in) {
             FastPairDevice.Builder builder = new FastPairDevice.Builder();
             if (in.readInt() == 1) {
                 builder.setName(in.readString());
             }
             int size = in.readInt();
             for (int i = 0; i < size; i++) {
                 builder.addMedium(in.readInt());
             }
             builder.setRssi(in.readInt());
             builder.setTxPower(in.readInt());
             if (in.readInt() == 1) {
                 builder.setModelId(in.readString());
             }
             builder.setBluetoothAddress(in.readString());
             if (in.readInt() == 1) {
                 int dataLength = in.readInt();
                 byte[] data = new byte[dataLength];
                 in.readByteArray(data);
                 builder.setData(data);
             }
             return builder.build();
         }

         @Override
         public FastPairDevice[] newArray(int size) {
             return new FastPairDevice[size];
         }
     };

     // The transmit power in dBm. Valid range is [-127, 126]. a
     // See android.bluetooth.le.ScanResult#getTxPower
     private int mTxPower;

     // Some OEM devices devices don't have model Id.
     @Nullable private final String mModelId;

     // Bluetooth hardware address as string. Can be read from BLE ScanResult.
     private final String mBluetoothAddress;

     @Nullable
     private final byte[] mData;

     /**
      * Creates a new FastPairDevice.
      *
      * @param name Name of the FastPairDevice. Can be {@code null} if there is no name.
      * @param mediums The {@link Medium}s over which the device is discovered.
      * @param rssi The received signal strength in dBm.
      * @param txPower The transmit power in dBm. Valid range is [-127, 126].
      * @param modelId The identifier of the Fast Pair device.
      *                Can be {@code null} if there is no Model ID.
      * @param bluetoothAddress The hardware address of this BluetoothDevice.
      * @param data Extra data for a Fast Pair device.
      */
     public FastPairDevice(@Nullable String name,
             List<Integer> mediums,
             int rssi,
             int txPower,
             @Nullable String modelId,
             @NonNull String bluetoothAddress,
             @Nullable byte[] data) {
         super(name, mediums, rssi);
         this.mTxPower = txPower;
         this.mModelId = modelId;
         this.mBluetoothAddress = bluetoothAddress;
         this.mData = data;
     }

     /**
      * Gets the transmit power in dBm. A value of
      * android.bluetooth.le.ScanResult#TX_POWER_NOT_PRESENT
      * indicates that the TX power is not present.
      */
     @IntRange(from = -127, to = 126)
     public int getTxPower() {
         return mTxPower;
     }

     /**
      * Gets the identifier of the Fast Pair device. Can be {@code null} if there is no Model ID.
      */
     @Nullable
     public String getModelId() {
         return this.mModelId;
     }

     /**
      * Gets the hardware address of this BluetoothDevice.
      */
     @NonNull
     public String getBluetoothAddress() {
         return mBluetoothAddress;
     }

     /**
      * Gets the extra data for a Fast Pair device. Can be {@code null} if there is extra data.
      *
      * @hide
      */
     @Nullable
     public byte[] getData() {
         return mData;
     }

     /**
      * No special parcel contents.
      */
     @Override
     public int describeContents() {
         return 0;
     }

     /**
      * Returns a string representation of this FastPairDevice.
      */
     @Override
     public String toString() {
         StringBuilder stringBuilder = new StringBuilder();
         stringBuilder.append("FastPairDevice [");
         String name = getName();
         if (getName() != null && !name.isEmpty()) {
             stringBuilder.append("name=").append(name).append(", ");
         }
         stringBuilder.append("medium={");
         for (int medium: getMediums()) {
             stringBuilder.append(mediumToString(medium));
         }
         stringBuilder.append("} rssi=").append(getRssi());
         stringBuilder.append(" txPower=").append(mTxPower);
         stringBuilder.append(" modelId=").append(mModelId);
         stringBuilder.append(" bluetoothAddress=").append(mBluetoothAddress);
         stringBuilder.append("]");
         return stringBuilder.toString();
     }

     @Override
     public boolean equals(Object other) {
         if (other instanceof FastPairDevice) {
             FastPairDevice otherDevice = (FastPairDevice) other;
             if (!super.equals(other)) {
                 return false;
             }
             return  mTxPower == otherDevice.mTxPower
                     && Objects.equals(mModelId, otherDevice.mModelId)
                     && Objects.equals(mBluetoothAddress, otherDevice.mBluetoothAddress)
                     && Arrays.equals(mData, otherDevice.mData);
         }
         return false;
     }

     @Override
     public int hashCode() {
         return Objects.hash(
                 getName(), getMediums(), getRssi(), mTxPower, mModelId, mBluetoothAddress,
                 Arrays.hashCode(mData));
     }

     @Override
     public void writeToParcel(@NonNull Parcel dest, int flags) {
         String name = getName();
         dest.writeInt(name == null ? 0 : 1);
         if (name != null) {
             dest.writeString(name);
         }
         List<Integer> mediums = getMediums();
         dest.writeInt(mediums.size());
         for (int medium : mediums) {
             dest.writeInt(medium);
         }
         dest.writeInt(getRssi());
         dest.writeInt(mTxPower);
         dest.writeInt(mModelId == null ? 0 : 1);
         if (mModelId != null) {
             dest.writeString(mModelId);
         }
         dest.writeString(mBluetoothAddress);
         dest.writeInt(mData == null ? 0 : 1);
         if (mData != null) {
             dest.writeInt(mData.length);
             dest.writeByteArray(mData);
         }
     }

     /**
      * A builder class for {@link FastPairDevice}
      *
      * @hide
      */
     public static final class Builder {
         private final List<Integer> mMediums;

         @Nullable private String mName;
         private int mRssi;
         private int mTxPower;
         @Nullable private String mModelId;
         private String mBluetoothAddress;
         @Nullable private byte[] mData;

         public Builder() {
             mMediums = new ArrayList<>();
         }

         /**
          * Sets the name of the Fast Pair device.
          *
          * @param name Name of the FastPairDevice. Can be {@code null} if there is no name.
          */
         @NonNull
         public Builder setName(@Nullable String name) {
             mName = name;
             return this;
         }

         /**
          * Sets the medium over which the Fast Pair device is discovered.
          *
          * @param medium The {@link Medium} over which the device is discovered.
          */
         @NonNull
         public Builder addMedium(@Medium int medium) {
             mMediums.add(medium);
             return this;
         }

         /**
          * Sets the RSSI between the scan device and the discovered Fast Pair device.
          *
          * @param rssi The received signal strength in dBm.
          */
         @NonNull
         public Builder setRssi(@IntRange(from = -127, to = 126) int rssi) {
             mRssi = rssi;
             return this;
         }

         /**
          * Sets the txPower.
          *
          * @param txPower The transmit power in dBm
          */
         @NonNull
         public Builder setTxPower(@IntRange(from = -127, to = 126) int txPower) {
             mTxPower = txPower;
             return this;
         }

         /**
          * Sets the model Id of this Fast Pair device.
          *
          * @param modelId The identifier of the Fast Pair device. Can be {@code null}
          *                if there is no Model ID.
          */
         @NonNull
         public Builder setModelId(@Nullable String modelId) {
             mModelId = modelId;
             return this;
         }

         /**
          * Sets the hardware address of this BluetoothDevice.
          *
          * @param bluetoothAddress The hardware address of this BluetoothDevice.
          */
         @NonNull
         public Builder setBluetoothAddress(@NonNull String bluetoothAddress) {
             Objects.requireNonNull(bluetoothAddress);
             mBluetoothAddress = bluetoothAddress;
             return this;
         }

         /**
          * Sets the raw data for a FastPairDevice. Can be {@code null} if there is no extra data.
          *
          * @hide
          */
         @NonNull
         public Builder setData(@Nullable byte[] data) {
             mData = data;
             return this;
         }

         /**
          * Builds a FastPairDevice and return it.
          */
         @NonNull
         public FastPairDevice build() {
             return new FastPairDevice(mName, mMediums, mRssi, mTxPower, mModelId,
                     mBluetoothAddress, mData);
         }
     }
 }
	/*
	* Copyright (C) 2021 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.nearby;

	import android.annotation.IntRange;
	import android.annotation.NonNull;
	import android.annotation.Nullable;
	import android.os.Parcel;
	import android.os.Parcelable;

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

	/**
	* A class represents a Fast Pair device that can be discovered by multiple mediums.
	*
	* @hide
	*/
	public class FastPairDevice extends NearbyDevice implements Parcelable {
	/**
	* Used to read a FastPairDevice from a Parcel.
	*/
	public static final Creator<FastPairDevice> CREATOR = new Creator<FastPairDevice>() {
	@Override
	public FastPairDevice createFromParcel(Parcel in) {
	FastPairDevice.Builder builder = new FastPairDevice.Builder();
	if (in.readInt() == 1) {
	builder.setName(in.readString());
	}
	int size = in.readInt();
	for (int i = 0; i < size; i++) {
	builder.addMedium(in.readInt());
	}
	builder.setRssi(in.readInt());
	builder.setTxPower(in.readInt());
	if (in.readInt() == 1) {
	builder.setModelId(in.readString());
	}
	builder.setBluetoothAddress(in.readString());
	if (in.readInt() == 1) {
	int dataLength = in.readInt();
	byte[] data = new byte[dataLength];
	in.readByteArray(data);
	builder.setData(data);
	}
	return builder.build();
	}

	@Override
	public FastPairDevice[] newArray(int size) {
	return new FastPairDevice[size];
	}
	};

	// The transmit power in dBm. Valid range is [-127, 126]. a
	// See android.bluetooth.le.ScanResult#getTxPower
	private int mTxPower;

	// Some OEM devices devices don't have model Id.
	@Nullable private final String mModelId;

	// Bluetooth hardware address as string. Can be read from BLE ScanResult.
	private final String mBluetoothAddress;

	@Nullable
	private final byte[] mData;

	/**
	* Creates a new FastPairDevice.
	*
	* @param name Name of the FastPairDevice. Can be {@code null} if there is no name.
	* @param mediums The {@link Medium}s over which the device is discovered.
	* @param rssi The received signal strength in dBm.
	* @param txPower The transmit power in dBm. Valid range is [-127, 126].
	* @param modelId The identifier of the Fast Pair device.
	* Can be {@code null} if there is no Model ID.
	* @param bluetoothAddress The hardware address of this BluetoothDevice.
	* @param data Extra data for a Fast Pair device.
	*/
	public FastPairDevice(@Nullable String name,
	List<Integer> mediums,
	int rssi,
	int txPower,
	@Nullable String modelId,
	@NonNull String bluetoothAddress,
	@Nullable byte[] data) {
	super(name, mediums, rssi);
	this.mTxPower = txPower;
	this.mModelId = modelId;
	this.mBluetoothAddress = bluetoothAddress;
	this.mData = data;
	}

	/**
	* Gets the transmit power in dBm. A value of
	* android.bluetooth.le.ScanResult#TX_POWER_NOT_PRESENT
	* indicates that the TX power is not present.
	*/
	@IntRange(from = -127, to = 126)
	public int getTxPower() {
	return mTxPower;
	}

	/**
	* Gets the identifier of the Fast Pair device. Can be {@code null} if there is no Model ID.
	*/
	@Nullable
	public String getModelId() {
	return this.mModelId;
	}

	/**
	* Gets the hardware address of this BluetoothDevice.
	*/
	@NonNull
	public String getBluetoothAddress() {
	return mBluetoothAddress;
	}

	/**
	* Gets the extra data for a Fast Pair device. Can be {@code null} if there is extra data.
	*
	* @hide
	*/
	@Nullable
	public byte[] getData() {
	return mData;
	}

	/**
	* No special parcel contents.
	*/
	@Override
	public int describeContents() {
	return 0;
	}

	/**
	* Returns a string representation of this FastPairDevice.
	*/
	@Override
	public String toString() {
	StringBuilder stringBuilder = new StringBuilder();
	stringBuilder.append("FastPairDevice [");
	String name = getName();
	if (getName() != null && !name.isEmpty()) {
	stringBuilder.append("name=").append(name).append(", ");
	}
	stringBuilder.append("medium={");
	for (int medium: getMediums()) {
	stringBuilder.append(mediumToString(medium));
	}
	stringBuilder.append("} rssi=").append(getRssi());
	stringBuilder.append(" txPower=").append(mTxPower);
	stringBuilder.append(" modelId=").append(mModelId);
	stringBuilder.append(" bluetoothAddress=").append(mBluetoothAddress);
	stringBuilder.append("]");
	return stringBuilder.toString();
	}

	@Override
	public boolean equals(Object other) {
	if (other instanceof FastPairDevice) {
	FastPairDevice otherDevice = (FastPairDevice) other;
	if (!super.equals(other)) {
	return false;
	}
	return mTxPower == otherDevice.mTxPower
	&& Objects.equals(mModelId, otherDevice.mModelId)
	&& Objects.equals(mBluetoothAddress, otherDevice.mBluetoothAddress)
	&& Arrays.equals(mData, otherDevice.mData);
	}
	return false;
	}

	@Override
	public int hashCode() {
	return Objects.hash(
	getName(), getMediums(), getRssi(), mTxPower, mModelId, mBluetoothAddress,
	Arrays.hashCode(mData));
	}

	@Override
	public void writeToParcel(@NonNull Parcel dest, int flags) {
	String name = getName();
	dest.writeInt(name == null ? 0 : 1);
	if (name != null) {
	dest.writeString(name);
	}
	List<Integer> mediums = getMediums();
	dest.writeInt(mediums.size());
	for (int medium : mediums) {
	dest.writeInt(medium);
	}
	dest.writeInt(getRssi());
	dest.writeInt(mTxPower);
	dest.writeInt(mModelId == null ? 0 : 1);
	if (mModelId != null) {
	dest.writeString(mModelId);
	}
	dest.writeString(mBluetoothAddress);
	dest.writeInt(mData == null ? 0 : 1);
	if (mData != null) {
	dest.writeInt(mData.length);
	dest.writeByteArray(mData);
	}
	}

	/**
	* A builder class for {@link FastPairDevice}
	*
	* @hide
	*/
	public static final class Builder {
	private final List<Integer> mMediums;

	@Nullable private String mName;
	private int mRssi;
	private int mTxPower;
	@Nullable private String mModelId;
	private String mBluetoothAddress;
	@Nullable private byte[] mData;

	public Builder() {
	mMediums = new ArrayList<>();
	}

	/**
	* Sets the name of the Fast Pair device.
	*
	* @param name Name of the FastPairDevice. Can be {@code null} if there is no name.
	*/
	@NonNull
	public Builder setName(@Nullable String name) {
	mName = name;
	return this;
	}

	/**
	* Sets the medium over which the Fast Pair device is discovered.
	*
	* @param medium The {@link Medium} over which the device is discovered.
	*/
	@NonNull
	public Builder addMedium(@Medium int medium) {
	mMediums.add(medium);
	return this;
	}

	/**
	* Sets the RSSI between the scan device and the discovered Fast Pair device.
	*
	* @param rssi The received signal strength in dBm.
	*/
	@NonNull
	public Builder setRssi(@IntRange(from = -127, to = 126) int rssi) {
	mRssi = rssi;
	return this;
	}

	/**
	* Sets the txPower.
	*
	* @param txPower The transmit power in dBm
	*/
	@NonNull
	public Builder setTxPower(@IntRange(from = -127, to = 126) int txPower) {
	mTxPower = txPower;
	return this;
	}

	/**
	* Sets the model Id of this Fast Pair device.
	*
	* @param modelId The identifier of the Fast Pair device. Can be {@code null}
	* if there is no Model ID.
	*/
	@NonNull
	public Builder setModelId(@Nullable String modelId) {
	mModelId = modelId;
	return this;
	}

	/**
	* Sets the hardware address of this BluetoothDevice.
	*
	* @param bluetoothAddress The hardware address of this BluetoothDevice.
	*/
	@NonNull
	public Builder setBluetoothAddress(@NonNull String bluetoothAddress) {
	Objects.requireNonNull(bluetoothAddress);
	mBluetoothAddress = bluetoothAddress;
	return this;
	}

	/**
	* Sets the raw data for a FastPairDevice. Can be {@code null} if there is no extra data.
	*
	* @hide
	*/
	@NonNull
	public Builder setData(@Nullable byte[] data) {
	mData = data;
	return this;
	}

	/**
	* Builds a FastPairDevice and return it.
	*/
	@NonNull
	public FastPairDevice build() {
	return new FastPairDevice(mName, mMediums, mRssi, mTxPower, mModelId,
	mBluetoothAddress, mData);
	}
	}
	}