io.cloudshiftdev.awscdk.services.sns.subscriptions.LambdaSubscriptionProps.kt Maven / Gradle / Ivy

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Kotlin DSL for AWS CDK
There is a newer version: 0.10.0
@file:Suppress("RedundantVisibilityModifier","RedundantUnitReturnType","RemoveRedundantQualifierName","unused","UnusedImport","ClassName","REDUNDANT_PROJECTION","DEPRECATION")

package io.cloudshiftdev.awscdk.services.sns.subscriptions

import io.cloudshiftdev.awscdk.common.CdkDslMarker
import io.cloudshiftdev.awscdk.common.CdkObject
import io.cloudshiftdev.awscdk.common.CdkObjectWrappers
import io.cloudshiftdev.awscdk.services.sns.FilterOrPolicy
import io.cloudshiftdev.awscdk.services.sns.SubscriptionFilter
import io.cloudshiftdev.awscdk.services.sqs.IQueue
import kotlin.String
import kotlin.Unit
import kotlin.collections.Map

/**
 * Properties for a Lambda subscription.
 *
 * Example:
 *
 * ```
 * import io.cloudshiftdev.awscdk.services.lambda.*;
 * Function fn;
 * Topic myTopic = new Topic(this, "MyTopic");
 * // Lambda should receive only message matching the following conditions on attributes:
 * // color: 'red' or 'orange' or begins with 'bl'
 * // size: anything but 'small' or 'medium'
 * // price: between 100 and 200 or greater than 300
 * // store: attribute must be present
 * myTopic.addSubscription(LambdaSubscription.Builder.create(fn)
 * .filterPolicy(Map.of(
 * "color", SubscriptionFilter.stringFilter(StringConditions.builder()
 * .allowlist(List.of("red", "orange"))
 * .matchPrefixes(List.of("bl"))
 * .matchSuffixes(List.of("ue"))
 * .build()),
 * "size", SubscriptionFilter.stringFilter(StringConditions.builder()
 * .denylist(List.of("small", "medium"))
 * .build()),
 * "price", SubscriptionFilter.numericFilter(NumericConditions.builder()
 * .between(BetweenCondition.builder().start(100).stop(200).build())
 * .greaterThan(300)
 * .build()),
 * "store", SubscriptionFilter.existsFilter()))
 * .build());
 * ```
 */
public interface LambdaSubscriptionProps : SubscriptionProps {
  /**
   * A builder for [LambdaSubscriptionProps]
   */
  @CdkDslMarker
  public interface Builder {
    /**
     * @param deadLetterQueue Queue to be used as dead letter queue.
     * If not passed no dead letter queue is enabled.
     */
    public fun deadLetterQueue(deadLetterQueue: IQueue)

    /**
     * @param filterPolicy The filter policy.
     */
    public fun filterPolicy(filterPolicy: Map)

    /**
     * @param filterPolicyWithMessageBody The filter policy that is applied on the message body.
     * To apply a filter policy to the message attributes, use `filterPolicy`. A maximum of one of
     * `filterPolicyWithMessageBody` and `filterPolicy` may be used.
     */
    public fun filterPolicyWithMessageBody(filterPolicyWithMessageBody: Map)
  }

  private class BuilderImpl : Builder {
    private val cdkBuilder:
        software.amazon.awscdk.services.sns.subscriptions.LambdaSubscriptionProps.Builder =
        software.amazon.awscdk.services.sns.subscriptions.LambdaSubscriptionProps.builder()

    /**
     * @param deadLetterQueue Queue to be used as dead letter queue.
     * If not passed no dead letter queue is enabled.
     */
    override fun deadLetterQueue(deadLetterQueue: IQueue) {
      cdkBuilder.deadLetterQueue(deadLetterQueue.let(IQueue.Companion::unwrap))
    }

    /**
     * @param filterPolicy The filter policy.
     */
    override fun filterPolicy(filterPolicy: Map) {
      cdkBuilder.filterPolicy(filterPolicy.mapValues{SubscriptionFilter.unwrap(it.value)})
    }

    /**
     * @param filterPolicyWithMessageBody The filter policy that is applied on the message body.
     * To apply a filter policy to the message attributes, use `filterPolicy`. A maximum of one of
     * `filterPolicyWithMessageBody` and `filterPolicy` may be used.
     */
    override
        fun filterPolicyWithMessageBody(filterPolicyWithMessageBody: Map) {
      cdkBuilder.filterPolicyWithMessageBody(filterPolicyWithMessageBody.mapValues{FilterOrPolicy.unwrap(it.value)})
    }

    public fun build(): software.amazon.awscdk.services.sns.subscriptions.LambdaSubscriptionProps =
        cdkBuilder.build()
  }

  private class Wrapper(
    cdkObject: software.amazon.awscdk.services.sns.subscriptions.LambdaSubscriptionProps,
  ) : CdkObject(cdkObject),
      LambdaSubscriptionProps {
    /**
     * Queue to be used as dead letter queue.
     *
     * If not passed no dead letter queue is enabled.
     *
     * Default: - No dead letter queue enabled.
     */
    override fun deadLetterQueue(): IQueue? = unwrap(this).getDeadLetterQueue()?.let(IQueue::wrap)

    /**
     * The filter policy.
     *
     * Default: - all messages are delivered
     */
    override fun filterPolicy(): Map =
        unwrap(this).getFilterPolicy()?.mapValues{SubscriptionFilter.wrap(it.value)} ?: emptyMap()

    /**
     * The filter policy that is applied on the message body.
     *
     * To apply a filter policy to the message attributes, use `filterPolicy`. A maximum of one of
     * `filterPolicyWithMessageBody` and `filterPolicy` may be used.
     *
     * Default: - all messages are delivered
     */
    override fun filterPolicyWithMessageBody(): Map =
        unwrap(this).getFilterPolicyWithMessageBody()?.mapValues{FilterOrPolicy.wrap(it.value)} ?:
        emptyMap()
  }

  public companion object {
    public operator fun invoke(block: Builder.() -> Unit = {}): LambdaSubscriptionProps {
      val builderImpl = BuilderImpl()
      return Wrapper(builderImpl.apply(block).build())
    }

    internal
        fun wrap(cdkObject: software.amazon.awscdk.services.sns.subscriptions.LambdaSubscriptionProps):
        LambdaSubscriptionProps = CdkObjectWrappers.wrap(cdkObject) as? LambdaSubscriptionProps ?:
        Wrapper(cdkObject)

    internal fun unwrap(wrapped: LambdaSubscriptionProps):
        software.amazon.awscdk.services.sns.subscriptions.LambdaSubscriptionProps = (wrapped as
        CdkObject).cdkObject as
        software.amazon.awscdk.services.sns.subscriptions.LambdaSubscriptionProps
  }
}