Utilizzare BatchPutAssetPropertyValue con un SDK AWS o una CLI

Come inviare dati alle proprietà degli asset

L’esempio batch-put-asset-property-value seguente invia i dati di alimentazione e temperatura alle proprietà degli asset identificate dagli alias di proprietà.

aws iotsitewise batch-put-asset-property-value \
    --cli-input-json file://batch-put-asset-property-value.json

Contenuto di batch-put-asset-property-value.json.

{
    "entries": [
        {
            "entryId": "1575691200-company-windfarm-3-turbine-7-power",
            "propertyAlias": "company-windfarm-3-turbine-7-power",
            "propertyValues": [
                {
                    "value": {
                        "doubleValue": 4.92
                    },
                    "timestamp": {
                        "timeInSeconds": 1575691200
                    },
                    "quality": "GOOD"
                }
            ]
        },
        {
            "entryId": "1575691200-company-windfarm-3-turbine-7-temperature",
            "propertyAlias": "company-windfarm-3-turbine-7-temperature",
            "propertyValues": [
                {
                    "value": {
                        "integerValue": 38
                    },
                    "timestamp": {
                        "timeInSeconds": 1575691200
                    }
                }
            ]
        }
    ]
}

Output:

{
    "errorEntries": []
}

Per ulteriori informazioni, consulta Inserimento di dati tramite l’API AWS IoT SiteWise nella Guida per l’utente di AWS IoT SiteWise.

    /**
     * Sends data to the SiteWise service.
     *
     * @param assetId        the ID of the asset to which the data will be sent.
     * @param tempPropertyId the ID of the temperature property.
     * @param humidityPropId the ID of the humidity property.
     * @return a {@link CompletableFuture} that represents a {@link BatchPutAssetPropertyValueResponse} result. The
     *         calling code can attach callbacks, then handle the result or exception by calling
     *         {@link CompletableFuture#join()} or {@link CompletableFuture#get()}.
     *         <p>
     *         If any completion stage in this method throws an exception, the method logs the exception cause and keeps it
     *         available to the calling code as a {@link CompletionException}. By calling
     *         {@link CompletionException#getCause()}, the calling code can access the original exception.
     */
    public CompletableFuture<BatchPutAssetPropertyValueResponse> sendDataToSiteWiseAsync(String assetId, String tempPropertyId, String humidityPropId) {
        Map<String, Double> sampleData = generateSampleData();
        long timestamp = Instant.now().toEpochMilli();

        TimeInNanos time = TimeInNanos.builder()
            .timeInSeconds(timestamp / 1000)
            .offsetInNanos((int) ((timestamp % 1000) * 1000000))
            .build();

        BatchPutAssetPropertyValueRequest request = BatchPutAssetPropertyValueRequest.builder()
            .entries(Arrays.asList(
                PutAssetPropertyValueEntry.builder()
                    .entryId("entry-3")
                    .assetId(assetId)
                    .propertyId(tempPropertyId)
                    .propertyValues(Arrays.asList(
                        AssetPropertyValue.builder()
                            .value(Variant.builder()
                                .doubleValue(sampleData.get("Temperature"))
                                .build())
                            .timestamp(time)
                            .build()
                    ))
                    .build(),
                PutAssetPropertyValueEntry.builder()
                    .entryId("entry-4")
                    .assetId(assetId)
                    .propertyId(humidityPropId)
                    .propertyValues(Arrays.asList(
                        AssetPropertyValue.builder()
                            .value(Variant.builder()
                                .doubleValue(sampleData.get("Humidity"))
                                .build())
                            .timestamp(time)
                            .build()
                    ))
                    .build()
            ))
            .build();

        return getAsyncClient().batchPutAssetPropertyValue(request)
            .whenComplete((response, exception) -> {
                if (exception != null) {
                    logger.error("An exception occurred: {}", exception.getCause().getMessage());
                }
            });
    }

import {
  BatchPutAssetPropertyValueCommand,
  IoTSiteWiseClient,
} from "@aws-sdk/client-iotsitewise";
import { parseArgs } from "node:util";

/**
 * Batch put asset property values.
 * @param {{ entries : array }}
 */
export const main = async ({ entries }) => {
  const client = new IoTSiteWiseClient({});
  try {
    const result = await client.send(
      new BatchPutAssetPropertyValueCommand({
        entries: entries,
      }),
    );
    console.log("Asset properties batch put successfully.");
    return result;
  } catch (caught) {
    if (caught instanceof Error && caught.name === "ResourceNotFound") {
      console.warn(`${caught.message}. A resource could not be found.`);
    } else {
      throw caught;
    }
  }
};

class IoTSitewiseWrapper:
    """Encapsulates AWS IoT SiteWise actions using the client interface."""

    def __init__(self, iotsitewise_client: client) -> None:
        """
        Initializes the IoTSitewiseWrapper with an AWS IoT SiteWise client.

        :param iotsitewise_client: A Boto3 AWS IoT SiteWise client. This client provides low-level
                           access to AWS IoT SiteWise services.
        """
        self.iotsitewise_client = iotsitewise_client
        self.entry_id = 0 # Incremented to generate unique entry IDs for batch_put_asset_property_value.

    @classmethod
    def from_client(cls) -> "IoTSitewiseWrapper":
        """
        Creates an IoTSitewiseWrapper instance with a default AWS IoT SiteWise client.

        :return: An instance of IoTSitewiseWrapper initialized with the default AWS IoT SiteWise client.
        """
        iotsitewise_client = boto3.client("iotsitewise")
        return cls(iotsitewise_client)


    def batch_put_asset_property_value(
        self, asset_id: str, values: List[Dict[str, str]]
    ) -> None:
        """
        Sends data to an AWS IoT SiteWise Asset.

        :param asset_id: The asset ID.
        :param values: A list of dictionaries containing the values in the form
                        {propertyId : property_id,
                        valueType : [stringValue|integerValue|doubleValue|booleanValue],
                        value : the_value}.
        """
        try:
            entries = self.properties_to_values(asset_id, values)
            self.iotsitewise_client.batch_put_asset_property_value(entries=entries)
        except ClientError as err:
            if err.response["Error"]["Code"] == "ResourceNotFoundException":
                logger.error("Asset %s does not exist.", asset_id)
            else:
                logger.error(
                    "Error sending data to asset. Here's why %s",
                    err.response["Error"]["Message"],
                )
            raise

Una funzione helper per generare il parametro entries da un elenco di valori.

    def properties_to_values(
        self, asset_id: str, values: list[dict[str, Any]]
    ) -> list[dict[str, Any]]:
        """
        Utility function to convert a values list to the entries parameter for batch_put_asset_property_value.
        :param asset_id : The asset ID.
        :param values : A list of dictionaries containing the values in the form
                        {propertyId : property_id,
                        valueType : [stringValue|integerValue|doubleValue|booleanValue],
                        value : the_value}.
        :return: An entries list to pass as the 'entries' parameter to batch_put_asset_property_value.
        """
        entries = []
        for value in values:
            epoch_ns = time.time_ns()
            self.entry_id += 1
            if value["valueType"] == "stringValue":
                property_value = {"stringValue": value["value"]}
            elif value["valueType"] == "integerValue":
                property_value = {"integerValue": value["value"]}
            elif value["valueType"] == "booleanValue":
                property_value = {"booleanValue": value["value"]}
            elif value["valueType"] == "doubleValue":
                property_value = {"doubleValue": value["value"]}
            else:
                raise ValueError("Invalid valueType: %s", value["valueType"])
            entry = {
                "entryId": f"{self.entry_id}",
                "assetId": asset_id,
                "propertyId": value["propertyId"],
                "propertyValues": [
                    {
                        "value": property_value,
                        "timestamp": {
                            "timeInSeconds": int(epoch_ns / 1000000000),
                            "offsetInNanos": epoch_ns % 1000000000,
                        },
                    }
                ],
            }
            entries.append(entry)
        return entries

Di seguito è riportato un esempio di elenco di valori da passare alla funzione helper.

        values = [
            {
                "propertyId": humidity_property_id,
                "valueType": "doubleValue",
                "value": 65.0,
            },
            {
                "propertyId": temperature_property_id,
                "valueType": "doubleValue",
                "value": 23.5,
            },
        ]