interfaces/protobuf/schemas/edgeToCloud/last_known_state_data.proto

// Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
// SPDX-License-Identifier: Apache-2.0

syntax = "proto3";

option java_package = "com.amazonaws.iot.autobahn.schemas";
package Aws.IoTFleetWise.Schemas.LastKnownState;

/*
 * Top level message sent to the Cloud with collected signals
 */
message LastKnownStateData {
  /*
   * The absolute timestamp in milliseconds since Unix Epoch of when the event was triggered.
   */
   uint64 collection_event_time_ms_epoch = 2;

   /*
    * List of state templates signal data that are captured.
    *
    * Each state template contains the signals that are collected for it.
    */
   repeated CapturedStateTemplateSignals captured_state_template_signals = 6;
}

message CapturedStateTemplateSignals {
    /*
     * Synchronization ID for the state template
     * Any business logic or validation logic should not be built on basis of the structure of this ID
     */
    string state_template_sync_id = 1;

    /*
     * List of captured signals
     *
     * This list doesn't necessarily include all signals that were requested as data could be split in
     * multiple messages.
     *
     */
    repeated CapturedSignal captured_signals = 2;
}

message CapturedSignal {
    uint32 signal_id = 1;

    /*
     * Data types of physical signal values.
     */
    oneof SignalValue {

        double double_value = 2;

        bool boolean_value = 3;

        sint32 int8_value = 4;

        uint32 uint8_value = 5;

        sint32 int16_value = 6;

        uint32 uint16_value = 7;

        sint32 int32_value = 8;

        uint32 uint32_value = 9;

        sint64 int64_value = 10;

        uint64 uint64_value = 11;

        float float_value = 12;

        /*
         * An UTF-8 encoded or 7-bit ASCII string
         */
        string string_value = 13;
    }

    reserved 14;
    reserved "update_strategy";
}

enum UpdateStrategy {
    UPDATE_STRATEGY_UNSPECIFIED = 0;
    UPDATE_STRATEGY_ON_CHANGE = 1;
    UPDATE_STRATEGY_PERIODIC = 2;
}