| /* |
| * Copyright (C) 2020 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 com.google.android.connecteddevice.connection; |
| |
| import androidx.annotation.NonNull; |
| import androidx.annotation.Nullable; |
| import com.google.android.companionprotos.DeviceMessageProto.Message; |
| import com.google.android.connecteddevice.util.ByteUtils; |
| import java.util.Arrays; |
| import java.util.Objects; |
| import java.util.UUID; |
| |
| /** Holds the needed data from a {@link Message}. */ |
| public class DeviceMessage { |
| |
| private static final String TAG = "DeviceMessage"; |
| |
| private final UUID recipient; |
| |
| private final boolean isMessageEncrypted; |
| |
| private byte[] message; |
| |
| private int originalMessageSize; |
| |
| public DeviceMessage( |
| @Nullable UUID recipient, boolean isMessageEncrypted, @NonNull byte[] message) { |
| this.recipient = recipient; |
| this.isMessageEncrypted = isMessageEncrypted; |
| this.message = message; |
| } |
| |
| public DeviceMessage(@NonNull Message message) { |
| recipient = ByteUtils.bytesToUUID(message.getRecipient().toByteArray()); |
| isMessageEncrypted = message.getIsPayloadEncrypted(); |
| this.message = message.getPayload().toByteArray(); |
| originalMessageSize = message.getOriginalSize(); |
| } |
| |
| /** Returns the recipient for this message. {@code null} if no recipient set. */ |
| @Nullable |
| public UUID getRecipient() { |
| return recipient; |
| } |
| |
| /** Returns whether this message is encrypted. */ |
| public boolean isMessageEncrypted() { |
| return isMessageEncrypted; |
| } |
| |
| /** Returns the message payload. */ |
| @Nullable |
| public byte[] getMessage() { |
| return message; |
| } |
| |
| /** Returns the number of bytes in the original message prior to compressing. */ |
| public int getOriginalMessageSize() { |
| return originalMessageSize; |
| } |
| |
| /** Set the message payload. */ |
| public void setMessage(@NonNull byte[] message) { |
| this.message = message; |
| } |
| |
| /** Set the original message size in bytes. */ |
| public void setOriginalMessageSize(int numBytes) { |
| originalMessageSize = numBytes; |
| } |
| |
| @Override |
| public boolean equals(Object obj) { |
| if (obj == this) { |
| return true; |
| } |
| if (!(obj instanceof DeviceMessage)) { |
| return false; |
| } |
| DeviceMessage deviceMessage = (DeviceMessage) obj; |
| return Objects.equals(recipient, deviceMessage.recipient) |
| && isMessageEncrypted == deviceMessage.isMessageEncrypted |
| && Arrays.equals(message, deviceMessage.message) |
| && originalMessageSize == deviceMessage.originalMessageSize; |
| } |
| |
| @Override |
| public int hashCode() { |
| return 31 * Objects.hash(recipient, isMessageEncrypted, originalMessageSize) |
| + Arrays.hashCode(message); |
| } |
| } |