Add protobufs for PeopleService data persistence.

/*

 * 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.

 */

syntax = "proto2";

package android.content;

option java_multiple_files = true;

// On disk representation of android.content.LocusId. Currently used by

// com.android.server.people.ConversationInfoProto.

message LocusIdProto {

  optional string locus_id = 1;

}

/*

 * 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.

 */

syntax = "proto2";

package com.android.server.people;

option java_multiple_files = true;

import "frameworks/base/core/proto/android/content/locusid.proto";

// On disk data of conversation infos for a user and app package.

message ConversationInfosProto {

  // The series of conversation infos for a user and app package.

  repeated ConversationInfoProto conversation_infos = 1;

}

// Individual conversation info (com.android.server.people.data.ConversationInfo) for a user

// and app package.

message ConversationInfoProto {

  // The conversation's shortcut id.

  optional string shortcut_id = 1;

  // The conversation's locus id.

  optional .android.content.LocusIdProto locus_id_proto = 2;

  // The URI of the contact in the conversation.

  optional string contact_uri = 3;

  // The notification channel id of the conversation.

  optional string notification_channel_id = 4;

  // Integer representation of shortcut bit flags.

  optional int32 shortcut_flags = 5;

  // Integer representation of conversation bit flags.

  optional int32 conversation_flags = 6;

}

// Individual event (com.android.server.people.data.Event).

message PeopleEventProto {

  // For valid values, refer to java class documentation.

  optional int32 event_type = 1;

  optional int64 time = 2;

  // The duration of the event. Should only be set for some event_types. Refer to java class

  // documentation for details.

  optional int32 duration = 3;

}

// Index of events' time distributions (com.android.server.people.data.EventIndex).

message PeopleEventIndexProto {

    // Each long value in event_bitmaps represents a time slot, there should be 4 values. Further

    // details can be found in class documentation.

    repeated int64 event_bitmaps = 1;

    optional int64 last_updated_time = 2;

}