feat(stepfunctions): support Map ItemProcessor #27913

lpizzinidev · 2023-11-09T16:51:51Z

Adds support for Map's ItemProcessor required field and deprecates Iterator.

Closes #27878.

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache-2.0 license

packages/aws-cdk-lib/aws-stepfunctions/lib/states/state.ts

kaizencc

Some preliminary thoughts @lpizzinidev, but thanks for getting this started!

kaizencc · 2023-12-13T21:36:07Z

packages/aws-cdk-lib/aws-stepfunctions/README.md

 ```

+To define a distributed `Map` state use the configuration parameter.


unclear to me what the "configuration parameter" is

kaizencc · 2023-12-13T21:37:40Z

packages/aws-cdk-lib/aws-stepfunctions/lib/states/map.ts

@@ -194,8 +207,16 @@ export class Map extends State implements INextable {
  protected validateState(): string[] {
    const errors: string[] = [];

-    if (this.iteration === undefined) {
-      errors.push('Map state must have a non-empty iterator');
+    if (this.iteration === undefined && this.processor === undefined) {


I mean, this is fine, but why not if (!this.iteration && !this.processor)

kaizencc · 2023-12-13T21:38:07Z

packages/aws-cdk-lib/aws-stepfunctions/lib/states/map.ts

@@ -162,13 +162,25 @@ export class Map extends State implements INextable {

  /**
   * Define iterator state machine in Map
+   *
+   * @deprecated - use `itemProcessor` instead.
   */
  public iterator(iterator: IChainable): Map {


Docstring should mention mutex with itemProcessor

kaizencc · 2023-12-13T21:38:16Z

packages/aws-cdk-lib/aws-stepfunctions/lib/states/map.ts

+  /**
+   * Define item processor in Map
+   */
+  public itemProcessor(processor: IChainable, config: ProcessorConfig = {}): Map {


Docstring should mention mutex with iterator

kaizencc · 2023-12-13T21:39:54Z

packages/aws-cdk-lib/aws-stepfunctions/lib/states/state.ts

    return {
-      Iterator: this.iteration.toGraphJson(),
+      Iterator: this.iteration?.toGraphJson(),


don't need this ? right? typescript should know whats up based on line 430

kaizencc · 2023-12-13T21:40:27Z

packages/aws-cdk-lib/aws-stepfunctions/lib/states/state.ts

+    return {
+      ItemProcessor: {
+        ...this.renderProcessorConfig(),
+        ...this.processor?.toGraphJson(),


Shouldn't TS know this.processor exists without the ??

kaizencc · 2023-12-13T21:40:59Z

packages/aws-cdk-lib/aws-stepfunctions/lib/states/state.ts

+  /**
+   * Render ProcessorConfig in ASL JSON format
+   */
+  private renderProcessorConfig(): any {


Suggested change

private renderProcessorConfig(): any {

private renderProcessorConfig() {

any doesn't help much, i'd rather TS guses at the return type

Makes sense, I specified the return type as this is the approach used for the other rendering functions.

Fair :). If there's a reason for it I can't think of one, but it's whatever either way.

Pull request has been modified.

mergify · 2023-12-14T23:38:58Z

Thank you for contributing! Your pull request will be updated from main and then merged automatically (do not update manually, and be sure to allow changes to be pushed to your fork).

mergify · 2023-12-14T23:42:52Z

Thank you for contributing! Your pull request will be updated from main and then merged automatically (do not update manually, and be sure to allow changes to be pushed to your fork).

aws-cdk-automation · 2023-12-15T00:24:13Z

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mergify · 2023-12-15T00:24:39Z

Thank you for contributing! Your pull request will be updated from main and then merged automatically (do not update manually, and be sure to allow changes to be pushed to your fork).

Adds support for Map's [ItemSelector](https://docs.aws.amazon.com/step-functions/latest/dg/input-output-itemselector.html) field and deprecates [parameters](https://docs.aws.amazon.com/step-functions/latest/dg/concepts-asl-use-map-state-inline.html#map-state-inline-deprecated-fields). With the release of Distributed Maps, AWS StepFunctions has released a few new fields, and deprecated two old ones for Map states. One of them was `Iterator` which was replaced with `ItemProcessor`, the other one is `Parameters` (replaced by `ItemSelector`). A similar PR was made to deprecate `Iterator` (#27913). While they are deprecated, these fields are still supported (PR reflects that) `ItemProcessor` and `ItemSelector` are both fields that are supported in `DISTRIBUTED` and `INLINE` mode, hence why they were added to the existing Map construct Closes #23265 ---- *By submitting this pull request, I confirm that my contribution is made under the terms of the Apache-2.0 license*

… executionType in the ProcessorConfig (#30301) ### Issue # (if applicable) Closes #30194 ### Reason for this change In #27913, the ItemProcessor was introduced for use with the Map Class. With the executionType in the ProcessorConfig, it was possible to specify the executionType for the Map. On the other hand, in #28821, the DistributedMap Class was introduced. The mapExecutionType of the DistributedMap class always overwrites the executionType of the ProcessorConfig. Therefore, when using the DistributedMap class, the implementation ignores the executionType of the ProcessorConfig. However, this behavior cannot be inferred from the documentation. ### Description of changes * Added to the docs that when using the DistributedMap Class, the executionType in the ProcessorConfig is ignored. * Also added a warning. ### Description of how you validated changes Add unit tests and integ tests ### Checklist - [x] My code adheres to the [CONTRIBUTING GUIDE](https://github.com/aws/aws-cdk/blob/main/CONTRIBUTING.md) and [DESIGN GUIDELINES](https://github.com/aws/aws-cdk/blob/main/docs/DESIGN_GUIDELINES.md) ---- *By submitting this pull request, I confirm that my contribution is made under the terms of the Apache-2.0 license*

… executionType in the ProcessorConfig (aws#30301) ### Issue # (if applicable) Closes aws#30194 ### Reason for this change In aws#27913, the ItemProcessor was introduced for use with the Map Class. With the executionType in the ProcessorConfig, it was possible to specify the executionType for the Map. On the other hand, in aws#28821, the DistributedMap Class was introduced. The mapExecutionType of the DistributedMap class always overwrites the executionType of the ProcessorConfig. Therefore, when using the DistributedMap class, the implementation ignores the executionType of the ProcessorConfig. However, this behavior cannot be inferred from the documentation. ### Description of changes * Added to the docs that when using the DistributedMap Class, the executionType in the ProcessorConfig is ignored. * Also added a warning. ### Description of how you validated changes Add unit tests and integ tests ### Checklist - [x] My code adheres to the [CONTRIBUTING GUIDE](https://github.com/aws/aws-cdk/blob/main/CONTRIBUTING.md) and [DESIGN GUIDELINES](https://github.com/aws/aws-cdk/blob/main/docs/DESIGN_GUIDELINES.md) ---- *By submitting this pull request, I confirm that my contribution is made under the terms of the Apache-2.0 license*

feat(stepfunctions): support Map ItemProcessor

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aws-cdk-automation requested a review from a team November 9, 2023 16:52

github-actions bot added feature-request A feature should be added or improved. p2 distinguished-contributor [Pilot] contributed 50+ PRs to the CDK labels Nov 9, 2023

fixed README

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Monthly PR metrics report - November 2023 #28212

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Merge branch 'main' into awsgh-27878

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fixed documentation and code style

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Merge branch 'main' into awsgh-27878

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polamjag mentioned this pull request Jan 4, 2024

(stepfunctions): Add native support for DistributedMap #23216

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abdelnn mentioned this pull request Jan 19, 2024

feat(stepfunctions): support Map ItemSelector #28771

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khushail mentioned this pull request May 16, 2024

aws-stepfunctions: Distributed Map State Item Processor executionType doesn't recognize ProcessorType.EXPRESS #30194

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mazyu36 mentioned this pull request May 22, 2024

fix(stepfunctions): add docs and warning DistributedMap Class ignores executionType in the ProcessorConfig #30301

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feat(stepfunctions): support Map ItemProcessor #27913

feat(stepfunctions): support Map ItemProcessor #27913

lpizzinidev commented Nov 9, 2023

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mergify bot commented Dec 15, 2023

		```

		To define a distributed `Map` state use the configuration parameter.

	private renderProcessorConfig(): any {
	private renderProcessorConfig() {

feat(stepfunctions): support Map ItemProcessor #27913

feat(stepfunctions): support Map ItemProcessor #27913

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