car-messenger-common/src/com/android/car/messenger/common/ConversationKey.java

/*
 * Copyright (C) 2019 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.android.car.messenger.common;

import android.bluetooth.BluetoothDevice;
import android.content.Intent;
import android.os.Parcel;
import android.os.Parcelable;

import java.util.Collections;
import java.util.List;

/**
 * {@link CompositeKey} subclass used to give each conversation on all the connected devices a
 * unique Key.
 */
public class ConversationKey extends CompositeKey implements Parcelable {

    public ConversationKey(String deviceId, String key) {
        super(deviceId, key);
    }

    /** Creates a ConversationKey from a BluetoothMapClient intent. **/
    public static ConversationKey createConversationKey(Intent intent) {
        BluetoothDevice device = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);
        String senderUri = Utils.getSenderUri(intent);
        String senderName = Utils.getSenderName(intent);
        String subKey = senderName + "/" + senderUri;
        if (Utils.isGroupConversation(intent)) {
            List<String> names = Utils.getInclusiveRecipientsUrisList(intent);
            Collections.sort(names);
            subKey = names.toString();
        }
        return new ConversationKey(device.getAddress(), subKey);
    }

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

    @Override
    public void writeToParcel(Parcel dest, int flags) {
        dest.writeString(getDeviceId());
        dest.writeString(getSubKey());
    }

    /** Creates {@link ConversationKey} instances from {@link Parcel} sources. */
    public static final Parcelable.Creator<ConversationKey> CREATOR =
            new Parcelable.Creator<ConversationKey>() {
                @Override
                public ConversationKey createFromParcel(Parcel source) {
                    return new ConversationKey(source.readString(), source.readString());
                }

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

}