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# 使用適用於 SAP ABAP 的 SDK 的 Auto Scaling 範例
<a name="sap-abap_auto-scaling_code_examples"></a>

下列程式碼範例示範如何使用適用於 SAP ABAP 的 AWS SDK 搭配 Auto Scaling 來執行動作和實作常見案例。

*Actions* 是大型程式的程式碼摘錄，必須在內容中執行。雖然動作會告訴您如何呼叫個別服務函數，但您可以在其相關情境中查看內容中的動作。

每個範例均包含完整原始碼的連結，您可在連結中找到如何設定和執行內容中程式碼的相關指示。

**Topics**
+ [動作](#actions)

## 動作
<a name="actions"></a>

### `CreateAutoScalingGroup`
<a name="auto-scaling_CreateAutoScalingGroup_sap-abap_topic"></a>

以下程式碼範例顯示如何使用 `CreateAutoScalingGroup`。

**適用於 SAP ABAP 的開發套件**  
 GitHub 上提供更多範例。尋找完整範例，並了解如何在 [AWS 程式碼範例儲存庫](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/sap-abap/services/asc#code-examples)中設定和執行。

```
    DATA lo_launch_template TYPE REF TO /aws1/cl_asclaunchtemplatespec.
    
    " Example: iv_group_name = 'my-auto-scaling-group'
    " Example: iv_launch_template_name = 'my-launch-template'
    " Example: iv_min_size = 1
    " Example: iv_max_size = 3
    " Example: iv_vpc_zone_identifier = 'subnet-12345,subnet-67890' (for VPC)
    
    TRY.
        " Create launch template specification
        lo_launch_template = NEW /aws1/cl_asclaunchtemplatespec(
          iv_launchtemplatename = iv_launch_template_name
          iv_version = '$Default' ).

        " Create the Auto Scaling group
        " Use VPCZoneIdentifier for VPC subnets, or AvailabilityZones for EC2-Classic
        IF iv_vpc_zone_identifier IS NOT INITIAL.
          " VPC-based deployment - use subnet IDs
          ao_asc->createautoscalinggroup(
            iv_autoscalinggroupname = iv_group_name
            iv_vpczoneidentifier = iv_vpc_zone_identifier
            io_launchtemplate = lo_launch_template
            iv_minsize = iv_min_size
            iv_maxsize = iv_max_size ).
        ELSE.
          " EC2-Classic or default VPC - use availability zones
          ao_asc->createautoscalinggroup(
            iv_autoscalinggroupname = iv_group_name
            it_availabilityzones = it_group_zones
            io_launchtemplate = lo_launch_template
            iv_minsize = iv_min_size
            iv_maxsize = iv_max_size ).
        ENDIF.

        " Wait for the group to be created (simplified - in production use proper polling)
        WAIT UP TO 10 SECONDS.

        MESSAGE 'Auto Scaling group created successfully' TYPE 'I'.

      CATCH /aws1/cx_ascalreadyexistsfault INTO DATA(lo_already_exists).
        RAISE EXCEPTION lo_already_exists.
      CATCH /aws1/cx_asclimitexceededfault INTO DATA(lo_limit_exceeded).
        RAISE EXCEPTION lo_limit_exceeded.
      CATCH /aws1/cx_rt_generic INTO DATA(lo_generic_exception).
        RAISE EXCEPTION lo_generic_exception.
    ENDTRY.
```
+  如需 API 詳細資訊，請參閱《適用於 *AWS SAP ABAP 的 SDK API 參考*》中的 [CreateAutoScalingGroup](https://docs.aws.amazon.com/sdk-for-sap-abap/v1/api/latest/index.html)。

### `DeleteAutoScalingGroup`
<a name="auto-scaling_DeleteAutoScalingGroup_sap-abap_topic"></a>

以下程式碼範例顯示如何使用 `DeleteAutoScalingGroup`。

**適用於 SAP ABAP 的開發套件**  
 GitHub 上提供更多範例。尋找完整範例，並了解如何在 [AWS 程式碼範例儲存庫](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/sap-abap/services/asc#code-examples)中設定和執行。

```
    " Example: iv_group_name = 'my-auto-scaling-group'
    
    TRY.
        ao_asc->deleteautoscalinggroup(
          iv_autoscalinggroupname = iv_group_name ).

        " Wait for the group to be deleted (simplified - in production use proper polling)
        WAIT UP TO 10 SECONDS.

        MESSAGE 'Auto Scaling group deleted successfully' TYPE 'I'.

      CATCH /aws1/cx_ascscaactivityinprg00 INTO DATA(lo_activity_in_progress).
        RAISE EXCEPTION lo_activity_in_progress.
      CATCH /aws1/cx_ascresourceinusefault INTO DATA(lo_resource_in_use).
        RAISE EXCEPTION lo_resource_in_use.
      CATCH /aws1/cx_rt_generic INTO DATA(lo_generic_exception).
        RAISE EXCEPTION lo_generic_exception.
    ENDTRY.
```
+  如需 API 詳細資訊，請參閱《適用於 *AWS SAP ABAP 的 SDK API 參考*》中的 [DeleteAutoScalingGroup](https://docs.aws.amazon.com/sdk-for-sap-abap/v1/api/latest/index.html)。

### `DescribeAutoScalingGroups`
<a name="auto-scaling_DescribeAutoScalingGroups_sap-abap_topic"></a>

以下程式碼範例顯示如何使用 `DescribeAutoScalingGroups`。

**適用於 SAP ABAP 的開發套件**  
 GitHub 上提供更多範例。尋找完整範例，並了解如何在 [AWS 程式碼範例儲存庫](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/sap-abap/services/asc#code-examples)中設定和執行。

```
    DATA lt_group_names TYPE /aws1/cl_ascautoscgroupnames_w=>tt_autoscalinggroupnames.
    DATA lo_group_name TYPE REF TO /aws1/cl_ascautoscgroupnames_w.
    
    " Example: iv_group_name = 'my-auto-scaling-group'
    
    TRY.
        " Build group names parameter
        CREATE OBJECT lo_group_name
          EXPORTING
            iv_value = iv_group_name.
        APPEND lo_group_name TO lt_group_names.

        " Describe the Auto Scaling group
        DATA(lo_output) = ao_asc->describeautoscalinggroups(
          it_autoscalinggroupnames = lt_group_names ).

        " Return the first (and only) group in the result
        DATA(lt_groups) = lo_output->get_autoscalinggroups( ).
        IF lines( lt_groups ) > 0.
          READ TABLE lt_groups INDEX 1 INTO DATA(lo_group).
          oo_output = lo_group.
        ENDIF.

        MESSAGE 'Auto Scaling group information retrieved successfully' TYPE 'I'.

      CATCH /aws1/cx_ascresrccontionfault INTO DATA(lo_contention).
        RAISE EXCEPTION lo_contention.
      CATCH /aws1/cx_rt_generic INTO DATA(lo_generic_exception).
        RAISE EXCEPTION lo_generic_exception.
    ENDTRY.
```
+  如需 API 詳細資訊，請參閱《適用於 *AWS SAP ABAP 的 SDK API 參考*》中的 [DescribeAutoScalingGroups](https://docs.aws.amazon.com/sdk-for-sap-abap/v1/api/latest/index.html)。

### `DescribeAutoScalingInstances`
<a name="auto-scaling_DescribeAutoScalingInstances_sap-abap_topic"></a>

以下程式碼範例顯示如何使用 `DescribeAutoScalingInstances`。

**適用於 SAP ABAP 的開發套件**  
 GitHub 上提供更多範例。尋找完整範例，並了解如何在 [AWS 程式碼範例儲存庫](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/sap-abap/services/asc#code-examples)中設定和執行。

```
    " Example: it_instance_ids contains a list of instance IDs
    
    TRY.
        DATA(lo_output) = ao_asc->describeautoscalinginstances(
          it_instanceids = it_instance_ids ).

        ot_output = lo_output->get_autoscalinginstances( ).

        MESSAGE 'Auto Scaling instances information retrieved successfully' TYPE 'I'.

      CATCH /aws1/cx_ascresrccontionfault INTO DATA(lo_contention).
        RAISE EXCEPTION lo_contention.
      CATCH /aws1/cx_rt_generic INTO DATA(lo_generic_exception).
        RAISE EXCEPTION lo_generic_exception.
    ENDTRY.
```
+  如需 API 詳細資訊，請參閱《適用於 *AWS SAP ABAP 的 SDK API 參考*》中的 [DescribeAutoScalingInstances](https://docs.aws.amazon.com/sdk-for-sap-abap/v1/api/latest/index.html)。

### `DescribeScalingActivities`
<a name="auto-scaling_DescribeScalingActivities_sap-abap_topic"></a>

以下程式碼範例顯示如何使用 `DescribeScalingActivities`。

**適用於 SAP ABAP 的開發套件**  
 GitHub 上提供更多範例。尋找完整範例，並了解如何在 [AWS 程式碼範例儲存庫](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/sap-abap/services/asc#code-examples)中設定和執行。

```
    " Example: iv_group_name = 'my-auto-scaling-group'
    
    TRY.
        DATA(lo_output) = ao_asc->describescalingactivities(
          iv_autoscalinggroupname = iv_group_name ).

        ot_output = lo_output->get_activities( ).

        MESSAGE 'Scaling activities retrieved successfully' TYPE 'I'.

      CATCH /aws1/cx_ascresrccontionfault INTO DATA(lo_contention).
        RAISE EXCEPTION lo_contention.
      CATCH /aws1/cx_rt_generic INTO DATA(lo_generic_exception).
        RAISE EXCEPTION lo_generic_exception.
    ENDTRY.
```
+  如需 API 詳細資訊，請參閱《適用於 *AWS SAP ABAP 的 SDK API 參考*》中的 [DescribeScalingActivities](https://docs.aws.amazon.com/sdk-for-sap-abap/v1/api/latest/index.html)。

### `DisableMetricsCollection`
<a name="auto-scaling_DisableMetricsCollection_sap-abap_topic"></a>

以下程式碼範例顯示如何使用 `DisableMetricsCollection`。

**適用於 SAP ABAP 的開發套件**  
 GitHub 上提供更多範例。尋找完整範例，並了解如何在 [AWS 程式碼範例儲存庫](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/sap-abap/services/asc#code-examples)中設定和執行。

```
    " Example: iv_group_name = 'my-auto-scaling-group'
    
    TRY.
        ao_asc->disablemetricscollection(
          iv_autoscalinggroupname = iv_group_name ).

        MESSAGE 'Metrics collection disabled successfully' TYPE 'I'.

      CATCH /aws1/cx_ascresrccontionfault INTO DATA(lo_contention).
        RAISE EXCEPTION lo_contention.
      CATCH /aws1/cx_rt_generic INTO DATA(lo_generic_exception).
        RAISE EXCEPTION lo_generic_exception.
    ENDTRY.
```
+  如需 API 詳細資訊，請參閱《適用於 *AWS SAP ABAP 的 SDK API 參考*》中的 [DisableMetricsCollection](https://docs.aws.amazon.com/sdk-for-sap-abap/v1/api/latest/index.html)。

### `EnableMetricsCollection`
<a name="auto-scaling_EnableMetricsCollection_sap-abap_topic"></a>

以下程式碼範例顯示如何使用 `EnableMetricsCollection`。

**適用於 SAP ABAP 的開發套件**  
 GitHub 上提供更多範例。尋找完整範例，並了解如何在 [AWS 程式碼範例儲存庫](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/sap-abap/services/asc#code-examples)中設定和執行。

```
    " Example: iv_group_name = 'my-auto-scaling-group'
    " Example: it_metrics contains list of metrics like 'GroupMinSize', 'GroupMaxSize', etc.
    
    TRY.
        ao_asc->enablemetricscollection(
          iv_autoscalinggroupname = iv_group_name
          it_metrics = it_metrics
          iv_granularity = '1Minute' ).

        MESSAGE 'Metrics collection enabled successfully' TYPE 'I'.

      CATCH /aws1/cx_ascresrccontionfault INTO DATA(lo_contention).
        RAISE EXCEPTION lo_contention.
      CATCH /aws1/cx_rt_generic INTO DATA(lo_generic_exception).
        RAISE EXCEPTION lo_generic_exception.
    ENDTRY.
```
+  如需 API 詳細資訊，請參閱《適用於 *AWS SAP ABAP 的 SDK API 參考*》中的 [EnableMetricsCollection](https://docs.aws.amazon.com/sdk-for-sap-abap/v1/api/latest/index.html)。

### `SetDesiredCapacity`
<a name="auto-scaling_SetDesiredCapacity_sap-abap_topic"></a>

以下程式碼範例顯示如何使用 `SetDesiredCapacity`。

**適用於 SAP ABAP 的開發套件**  
 GitHub 上提供更多範例。尋找完整範例，並了解如何在 [AWS 程式碼範例儲存庫](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/sap-abap/services/asc#code-examples)中設定和執行。

```
    " Example: iv_group_name = 'my-auto-scaling-group'
    " Example: iv_capacity = 2
    
    TRY.
        ao_asc->setdesiredcapacity(
          iv_autoscalinggroupname = iv_group_name
          iv_desiredcapacity = iv_capacity
          iv_honorcooldown = abap_false ).

        MESSAGE 'Desired capacity set successfully' TYPE 'I'.

      CATCH /aws1/cx_ascscaactivityinprg00 INTO DATA(lo_activity_in_progress).
        RAISE EXCEPTION lo_activity_in_progress.
      CATCH /aws1/cx_rt_generic INTO DATA(lo_generic_exception).
        RAISE EXCEPTION lo_generic_exception.
    ENDTRY.
```
+  如需 API 詳細資訊，請參閱《適用於 *AWS SAP ABAP 的 SDK API 參考*》中的 [SetDesiredCapacity](https://docs.aws.amazon.com/sdk-for-sap-abap/v1/api/latest/index.html)。

### `TerminateInstanceInAutoScalingGroup`
<a name="auto-scaling_TerminateInstanceInAutoScalingGroup_sap-abap_topic"></a>

以下程式碼範例顯示如何使用 `TerminateInstanceInAutoScalingGroup`。

**適用於 SAP ABAP 的開發套件**  
 GitHub 上提供更多範例。尋找完整範例，並了解如何在 [AWS 程式碼範例儲存庫](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/sap-abap/services/asc#code-examples)中設定和執行。

```
    " Example: iv_instance_id = 'i-1234567890abcdef0'
    " Example: iv_decrease_capacity = abap_true
    
    TRY.
        DATA(lo_output) = ao_asc->terminateinstinautoscgroup(
          iv_instanceid = iv_instance_id
          iv_shoulddecrementdesiredcap = iv_decrease_capacity ).

        oo_output = lo_output->get_activity( ).

        MESSAGE 'Instance terminated successfully' TYPE 'I'.

      CATCH /aws1/cx_ascscaactivityinprg00 INTO DATA(lo_activity_in_progress).
        RAISE EXCEPTION lo_activity_in_progress.
      CATCH /aws1/cx_ascresrccontionfault INTO DATA(lo_contention).
        RAISE EXCEPTION lo_contention.
      CATCH /aws1/cx_rt_generic INTO DATA(lo_generic_exception).
        RAISE EXCEPTION lo_generic_exception.
    ENDTRY.
```
+  如需 API 詳細資訊，請參閱《適用於 *AWS SAP ABAP 的 SDK API 參考*》中的 [TerminateInstanceInAutoScalingGroup](https://docs.aws.amazon.com/sdk-for-sap-abap/v1/api/latest/index.html)。

### `UpdateAutoScalingGroup`
<a name="auto-scaling_UpdateAutoScalingGroup_sap-abap_topic"></a>

以下程式碼範例顯示如何使用 `UpdateAutoScalingGroup`。

**適用於 SAP ABAP 的開發套件**  
 GitHub 上提供更多範例。尋找完整範例，並了解如何在 [AWS 程式碼範例儲存庫](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/sap-abap/services/asc#code-examples)中設定和執行。

```
    " Example: iv_group_name = 'my-auto-scaling-group'
    " Example: iv_max_size = 5
    
    TRY.
        ao_asc->updateautoscalinggroup(
          iv_autoscalinggroupname = iv_group_name
          iv_maxsize = iv_max_size
          iv_minsize = iv_min_size ).

        MESSAGE 'Auto Scaling group updated successfully' TYPE 'I'.

      CATCH /aws1/cx_ascresrccontionfault INTO DATA(lo_contention).
        RAISE EXCEPTION lo_contention.
      CATCH /aws1/cx_ascscaactivityinprg00 INTO DATA(lo_activity_in_progress).
        RAISE EXCEPTION lo_activity_in_progress.
      CATCH /aws1/cx_rt_generic INTO DATA(lo_generic_exception).
        RAISE EXCEPTION lo_generic_exception.
    ENDTRY.
```
+  如需 API 詳細資訊，請參閱《適用於 *AWS SAP ABAP 的 SDK API 參考*》中的 [UpdateAutoScalingGroup](https://docs.aws.amazon.com/sdk-for-sap-abap/v1/api/latest/index.html)。