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# `ListAssetModels`与 Amazon SDK 或 CLI 配合使用
`ListAssetModels`

以下代码示例演示如何使用 `ListAssetModels`。

------
#### [ CLI ]

**Amazon CLI**  
**列出所有资产模型**  
以下`list-asset-models`示例列出了您在当前地区的 Amazon 账户中定义的所有资产模型。  

```
aws iotsitewise list-asset-models
```
输出：  

```
{
    "assetModelSummaries": [
        {
            "id": "a1b2c3d4-5678-90ab-cdef-22222EXAMPLE",
            "arn": "arn:aws:iotsitewise:us-west-2:123456789012:asset-model/a1b2c3d4-5678-90ab-cdef-22222EXAMPLE",
            "name": "Wind Farm Model",
            "description": "Represents a wind farm that comprises many wind turbines",
            "creationDate": 1575671284.0,
            "lastUpdateDate": 1575671988.0,
            "status": {
                "state": "ACTIVE"
            }
        },
        {
            "id": "a1b2c3d4-5678-90ab-cdef-11111EXAMPLE",
            "arn": "arn:aws:iotsitewise:us-west-2:123456789012:asset-model/a1b2c3d4-5678-90ab-cdef-11111EXAMPLE",
            "name": "Wind Turbine Model",
            "description": "Represents a wind turbine manufactured by Example Corp",
            "creationDate": 1575671207.0,
            "lastUpdateDate": 1575686273.0,
            "status": {
                "state": "ACTIVE"
            }
        }
    ]
}
```
有关更多信息，请参阅《*Amazon 物联网 SiteWise 用户指南》*中的[列出所有资产模型](https://docs.amazonaws.cn/iot-sitewise/latest/userguide/discover-asset-resources.html#list-asset-models)。  
+  有关 API 的详细信息，请参阅*Amazon CLI 命令参考[ListAssetModels](https://awscli.amazonaws.com/v2/documentation/api/latest/reference/iotsitewise/list-asset-models.html)*中的。

------
#### [ Java ]

**适用于 Java 的 SDK 2.x**  
 还有更多相关信息 GitHub。在 [Amazon 代码示例存储库](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javav2/example_code/iotsitewise#code-examples)中查找完整示例，了解如何进行设置和运行。

```
    /**
     * Retrieves the asset model ID for the given asset model name.
     *
     * @param assetModelName the name of the asset model for the ID.
     * @return a {@link CompletableFuture} that represents a {@link String} result of the asset model ID or null if the
     *         asset model cannot be found. 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<String> getAssetModelIdAsync(String assetModelName) {
        ListAssetModelsRequest listAssetModelsRequest = ListAssetModelsRequest.builder().build();
        return getAsyncClient().listAssetModels(listAssetModelsRequest)
                .handle((listAssetModelsResponse, exception) -> {
                    if (exception != null) {
                        logger.error("Failed to retrieve Asset Model ID: {}", exception.getCause().getMessage());
                        throw (CompletionException) exception;
                    }
                    for (AssetModelSummary assetModelSummary : listAssetModelsResponse.assetModelSummaries()) {
                        if (assetModelSummary.name().equals(assetModelName)) {
                            return assetModelSummary.id();
                        }
                    }
                    return null;
                });
    }
```
+  有关 API 的详细信息，请参阅 *Amazon SDK for Java 2.x API 参考[ListAssetModels](https://docs.amazonaws.cn/goto/SdkForJavaV2/iotsitewise-2019-12-02/ListAssetModels)*中的。

------
#### [ JavaScript ]

**适用于 JavaScript (v3) 的软件开发工具包**  
 还有更多相关信息 GitHub。在 [Amazon 代码示例存储库](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javascriptv3/example_code/iotsitewise#code-examples)中查找完整示例，了解如何进行设置和运行。

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

/**
 * List asset models.
 * @param {{ assetModelTypes : array }}
 */
export const main = async ({ assetModelTypes = [] }) => {
  const client = new IoTSiteWiseClient({});
  try {
    const result = await client.send(
      new ListAssetModelsCommand({
        assetModelTypes: assetModelTypes, // The model types to list
      }),
    );
    console.log("Asset model types retrieved successfully.");
    return result;
  } catch (caught) {
    if (caught instanceof Error && caught.name === "IoTSiteWiseError") {
      console.warn(
        `${caught.message}. There was a problem listing the asset model types.`,
      );
    } else {
      throw caught;
    }
  }
};
```
+  有关 API 的详细信息，请参阅 *适用于 JavaScript 的 Amazon SDK API 参考[ListAssetModels](https://docs.amazonaws.cn/AWSJavaScriptSDK/v3/latest/client/iotsitewise/command/ListAssetModelsCommand)*中的。

------
#### [ Python ]

**适用于 Python 的 SDK（Boto3）**  
 还有更多相关信息 GitHub。在 [Amazon 代码示例存储库](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/python/example_code/iotsitewise#code-examples)中查找完整示例，了解如何进行设置和运行。

```
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 list_asset_models(self) -> List[Dict[str, Any]]:
        """
        Lists all AWS IoT SiteWise Asset Models.

        :return: A list of dictionaries containing information about each asset model.

        """
        try:
            asset_models = []
            paginator = self.iotsitewise_client.get_paginator("list_asset_models")
            pages = paginator.paginate()
            for page in pages:
                asset_models.extend(page["assetModelSummaries"])
            return asset_models
        except ClientError as err:
            logger.error(
                "Error listing asset models. Here's why %s",
                err.response["Error"]["Message"],
            )
            raise
```
+  有关 API 的详细信息，请参阅适用[ListAssetModels](https://docs.amazonaws.cn/goto/boto3/iotsitewise-2019-12-02/ListAssetModels)于 *Python 的Amazon SDK (Boto3) API 参考*。

------
#### [ SAP ABAP ]

**适用于 SAP ABAP 的 SDK**  
 还有更多相关信息 GitHub。在 [Amazon 代码示例存储库](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/sap-abap/services/ios#code-examples)中查找完整示例，了解如何进行设置和运行。

```
    TRY.
        oo_result = lo_ios->listassetmodels( ). " oo_result is returned for testing purposes. "
        DATA(lt_asset_models) = oo_result->get_assetmodelsummaries( ).
        MESSAGE 'Retrieved list of asset models.' TYPE 'I'.
      CATCH /aws1/cx_rt_generic.
        MESSAGE 'Unable to list asset models.' TYPE 'E'.
    ENDTRY.
```
+  有关 API 的详细信息，请参阅适用[ListAssetModels](https://docs.amazonaws.cn/sdk-for-sap-abap/v1/api/latest/index.html)于 S *AP 的Amazon SDK ABAP API 参考*。

------

有关 S Amazon DK 开发者指南和代码示例的完整列表，请参阅[将此服务与 Amazon SDK 配合使用](sdk-general-information-section.md)。本主题还包括有关入门的信息以及有关先前的 SDK 版本的详细信息。