feat(aws-eventbridge-kinesisstrems, aws-events-rule-kinesisstreams, aws-eventbridge-kinesisfirehose-s3, aws-events-rule-kinesisfirehose-s3): support for custom EventBus

source/patterns/@aws-solutions-constructs/aws-eventbridge-kinesisfirehose-s3/README.md

@@ -56,6 +56,8 @@ _Parameters_
 
 | **Name**     | **Type**        | **Description** |
 |:-------------|:----------------|-----------------|
+|existingEventBusInterface?|[`events.IEventBus`](https://docs.aws.amazon.com/cdk/api/latest/docs/@aws-cdk_aws-events.IEventBus.html)| Optional user-provided custom EventBus for construct to use. Providing both this and `eventBusProps` results an error.|
+|eventBusProps?|[`events.EventBusProps`](https://docs.aws.amazon.com/cdk/api/latest/docs/@aws-cdk_aws-events.EventBusProps.html)|Optional user-provided properties to override the default properties when creating a custom EventBus. Setting this value to `{}` will create a custom EventBus using all default properties. If neither this nor `existingEventBusInterface` is provided the construct will use the `default` EventBus. Providing both this and `existingEventBusInterface` results an error.|
 |eventRuleProps|[`events.RuleProps`](https://docs.aws.amazon.com/cdk/api/latest/docs/@aws-cdk_aws-events.RuleProps.html)|User provided eventRuleProps to override the defaults.|
 |kinesisFirehoseProps?|[`kinesisfirehose.CfnDeliveryStreamProps`](https://docs.aws.amazon.com/cdk/api/latest/docs/@aws-cdk_aws-kinesisfirehose.CfnDeliveryStreamProps.html)|Optional user provided props to override the default props for Kinesis Firehose Delivery Stream|
 |existingBucketObj?|[`s3.IBucket`](https://docs.aws.amazon.com/cdk/api/latest/docs/@aws-cdk_aws-s3.IBucket.html)|Existing instance of S3 Bucket object. If this is provided, then also providing bucketProps is an error. |
@@ -66,6 +68,7 @@ _Parameters_
 
 | **Name**     | **Type**        | **Description** |
 |:-------------|:----------------|-----------------|
+|eventBus?|[`events.IEventBus`](https://docs.aws.amazon.com/cdk/api/latest/docs/@aws-cdk_aws-events.IEventBus.html)|Returns the instance of events.IEventBus used by the construct|
 |eventsRule|[`events.Rule`](https://docs.aws.amazon.com/cdk/api/latest/docs/@aws-cdk_aws-events.Rule.html)|Returns an instance of events.Rule created by the construct.|
 |kinesisFirehose|[`kinesisfirehose.CfnDeliveryStream`](https://docs.aws.amazon.com/cdk/api/latest/docs/@aws-cdk_aws-kinesisfirehose.CfnDeliveryStream.html)|Returns an instance of kinesisfirehose.CfnDeliveryStream created by the construct|
 |s3Bucket?|[`s3.Bucket`](https://docs.aws.amazon.com/cdk/api/latest/docs/@aws-cdk_aws-s3.Bucket.html)|Returns an instance of s3.Bucket created by the construct|

source/patterns/@aws-solutions-constructs/aws-eventbridge-kinesisfirehose-s3/lib/index.ts

@@ -26,36 +26,48 @@ import { KinesisFirehoseToS3 } from '@aws-solutions-constructs/aws-kinesisfireho
  * @summary The properties for the EventbridgeToKinesisFirehoseToS3 Construct
  */
 export interface EventbridgeToKinesisFirehoseToS3Props {
+  /**
+   * Existing instance of a custom EventBus.
+   *
+   * @default - None
+   */
+  readonly existingEventBusInterface?: events.IEventBus;
+  /**
+   * A new custom EventBus is created with provided props.
+   *
+   * @default - None
+   */
+  readonly eventBusProps?: events.EventBusProps;
   /**
    * User provided eventRuleProps to override the defaults
    *
    * @default - None
    */
-  readonly eventRuleProps: events.RuleProps
+  readonly eventRuleProps: events.RuleProps;
   /**
    * User provided props to override the default props for the Kinesis Firehose.
    *
    * @default - Default props are used
    */
-  readonly kinesisFirehoseProps?: kinesisfirehose.CfnDeliveryStreamProps | any
+  readonly kinesisFirehoseProps?: kinesisfirehose.CfnDeliveryStreamProps | any;
   /**
    * Existing instance of S3 Bucket object, providing both this and `bucketProps` will cause an error.
    *
    * @default - None
    */
-  readonly existingBucketObj?: s3.IBucket,
+  readonly existingBucketObj?: s3.IBucket;
   /**
    * User provided props to override the default props for the S3 Bucket.
    *
    * @default - Default props are used
    */
-  readonly bucketProps?: s3.BucketProps,
+  readonly bucketProps?: s3.BucketProps;
   /**
    * User provided props to override the default props for the CloudWatchLogs LogGroup.
    *
    * @default - Default props are used
    */
-  readonly logGroupProps?: logs.LogGroupProps
+  readonly logGroupProps?: logs.LogGroupProps;
 }
 
 export class EventbridgeToKinesisFirehoseToS3 extends Construct {
@@ -66,6 +78,7 @@ export class EventbridgeToKinesisFirehoseToS3 extends Construct {
   public readonly kinesisFirehoseRole: iam.Role;
   public readonly s3Bucket?: s3.Bucket;
   public readonly s3LoggingBucket?: s3.Bucket;
+  public readonly eventBus?: events.IEventBus;
 
   /**
    * @summary Constructs a new instance of the EventbridgeToKinesisFirehoseToS3 class.
@@ -124,8 +137,14 @@ export class EventbridgeToKinesisFirehoseToS3 extends Construct {
       })
     };
 
+    // build an event bus if existingEventBus is provided or eventBusProps are provided
+    this.eventBus = defaults.buildEventBus(this, {
+      existingEventBusInterface: props.existingEventBusInterface,
+      eventBusProps: props.eventBusProps
+    });
+
     // Set up the events rule props
-    const defaultEventsRuleProps = defaults.DefaultEventsRuleProps([KinesisFirehoseEventTarget]);
+    const defaultEventsRuleProps = defaults.DefaultEventsRuleProps([KinesisFirehoseEventTarget], this.eventBus);
     const eventsRuleProps = overrideProps(defaultEventsRuleProps, props.eventRuleProps, true);
 
     this.eventsRule = new events.Rule(this, 'EventsRule', eventsRuleProps);