software.amazon.awscdk.services.events.targets.LambdaFunction Maven / Gradle / Ivy
Show all versions of events-targets Show documentation
package software.amazon.awscdk.services.events.targets;
/**
* Use an AWS Lambda function as an event rule target.
*
* Example:
*
*
* import software.amazon.awscdk.services.lambda.*;
* Function fn = Function.Builder.create(this, "MyFunc")
* .runtime(Runtime.NODEJS_12_X)
* .handler("index.handler")
* .code(Code.fromInline("exports.handler = handler.toString()"))
* .build();
* Rule rule = Rule.Builder.create(this, "rule")
* .eventPattern(EventPattern.builder()
* .source(List.of("aws.ec2"))
* .build())
* .build();
* Queue queue = new Queue(this, "Queue");
* rule.addTarget(LambdaFunction.Builder.create(fn)
* .deadLetterQueue(queue) // Optional: add a dead letter queue
* .maxEventAge(Duration.hours(2)) // Optional: set the maxEventAge retry policy
* .retryAttempts(2)
* .build());
*
*/
@javax.annotation.Generated(value = "jsii-pacmak/1.63.2 (build a8a8833)", date = "2022-08-17T17:31:21.303Z")
@software.amazon.jsii.Stability(software.amazon.jsii.Stability.Level.Stable)
@software.amazon.jsii.Jsii(module = software.amazon.awscdk.services.events.targets.$Module.class, fqn = "@aws-cdk/aws-events-targets.LambdaFunction")
public class LambdaFunction extends software.amazon.jsii.JsiiObject implements software.amazon.awscdk.services.events.IRuleTarget {
protected LambdaFunction(final software.amazon.jsii.JsiiObjectRef objRef) {
super(objRef);
}
protected LambdaFunction(final software.amazon.jsii.JsiiObject.InitializationMode initializationMode) {
super(initializationMode);
}
/**
* @param handler This parameter is required.
* @param props
*/
@software.amazon.jsii.Stability(software.amazon.jsii.Stability.Level.Stable)
public LambdaFunction(final @org.jetbrains.annotations.NotNull software.amazon.awscdk.services.lambda.IFunction handler, final @org.jetbrains.annotations.Nullable software.amazon.awscdk.services.events.targets.LambdaFunctionProps props) {
super(software.amazon.jsii.JsiiObject.InitializationMode.JSII);
software.amazon.jsii.JsiiEngine.getInstance().createNewObject(this, new Object[] { java.util.Objects.requireNonNull(handler, "handler is required"), props });
}
/**
* @param handler This parameter is required.
*/
@software.amazon.jsii.Stability(software.amazon.jsii.Stability.Level.Stable)
public LambdaFunction(final @org.jetbrains.annotations.NotNull software.amazon.awscdk.services.lambda.IFunction handler) {
super(software.amazon.jsii.JsiiObject.InitializationMode.JSII);
software.amazon.jsii.JsiiEngine.getInstance().createNewObject(this, new Object[] { java.util.Objects.requireNonNull(handler, "handler is required") });
}
/**
* Returns a RuleTarget that can be used to trigger this Lambda as a result from an EventBridge event.
*
* @param rule This parameter is required.
* @param _id
*/
@software.amazon.jsii.Stability(software.amazon.jsii.Stability.Level.Stable)
@Override
public @org.jetbrains.annotations.NotNull software.amazon.awscdk.services.events.RuleTargetConfig bind(final @org.jetbrains.annotations.NotNull software.amazon.awscdk.services.events.IRule rule, final @org.jetbrains.annotations.Nullable java.lang.String _id) {
return software.amazon.jsii.Kernel.call(this, "bind", software.amazon.jsii.NativeType.forClass(software.amazon.awscdk.services.events.RuleTargetConfig.class), new Object[] { java.util.Objects.requireNonNull(rule, "rule is required"), _id });
}
/**
* Returns a RuleTarget that can be used to trigger this Lambda as a result from an EventBridge event.
*
* @param rule This parameter is required.
*/
@software.amazon.jsii.Stability(software.amazon.jsii.Stability.Level.Stable)
@Override
public @org.jetbrains.annotations.NotNull software.amazon.awscdk.services.events.RuleTargetConfig bind(final @org.jetbrains.annotations.NotNull software.amazon.awscdk.services.events.IRule rule) {
return software.amazon.jsii.Kernel.call(this, "bind", software.amazon.jsii.NativeType.forClass(software.amazon.awscdk.services.events.RuleTargetConfig.class), new Object[] { java.util.Objects.requireNonNull(rule, "rule is required") });
}
/**
* A fluent builder for {@link software.amazon.awscdk.services.events.targets.LambdaFunction}.
*/
@software.amazon.jsii.Stability(software.amazon.jsii.Stability.Level.Stable)
public static final class Builder implements software.amazon.jsii.Builder {
/**
* @return a new instance of {@link Builder}.
* @param handler This parameter is required.
*/
@software.amazon.jsii.Stability(software.amazon.jsii.Stability.Level.Stable)
public static Builder create(final software.amazon.awscdk.services.lambda.IFunction handler) {
return new Builder(handler);
}
private final software.amazon.awscdk.services.lambda.IFunction handler;
private software.amazon.awscdk.services.events.targets.LambdaFunctionProps.Builder props;
private Builder(final software.amazon.awscdk.services.lambda.IFunction handler) {
this.handler = handler;
}
/**
* The SQS queue to be used as deadLetterQueue. Check out the [considerations for using a dead-letter queue](https://docs.aws.amazon.com/eventbridge/latest/userguide/rule-dlq.html#dlq-considerations).
*
* The events not successfully delivered are automatically retried for a specified period of time,
* depending on the retry policy of the target.
* If an event is not delivered before all retry attempts are exhausted, it will be sent to the dead letter queue.
*
* Default: - no dead-letter queue
*
* @return {@code this}
* @param deadLetterQueue The SQS queue to be used as deadLetterQueue. Check out the [considerations for using a dead-letter queue](https://docs.aws.amazon.com/eventbridge/latest/userguide/rule-dlq.html#dlq-considerations). This parameter is required.
*/
@software.amazon.jsii.Stability(software.amazon.jsii.Stability.Level.Stable)
public Builder deadLetterQueue(final software.amazon.awscdk.services.sqs.IQueue deadLetterQueue) {
this.props().deadLetterQueue(deadLetterQueue);
return this;
}
/**
* The maximum age of a request that Lambda sends to a function for processing.
*
* Minimum value of 60.
* Maximum value of 86400.
*
* Default: Duration.hours(24)
*
* @return {@code this}
* @param maxEventAge The maximum age of a request that Lambda sends to a function for processing. This parameter is required.
*/
@software.amazon.jsii.Stability(software.amazon.jsii.Stability.Level.Stable)
public Builder maxEventAge(final software.amazon.awscdk.core.Duration maxEventAge) {
this.props().maxEventAge(maxEventAge);
return this;
}
/**
* The maximum number of times to retry when the function returns an error.
*
* Minimum value of 0.
* Maximum value of 185.
*
* Default: 185
*
* @return {@code this}
* @param retryAttempts The maximum number of times to retry when the function returns an error. This parameter is required.
*/
@software.amazon.jsii.Stability(software.amazon.jsii.Stability.Level.Stable)
public Builder retryAttempts(final java.lang.Number retryAttempts) {
this.props().retryAttempts(retryAttempts);
return this;
}
/**
* The event to send to the Lambda.
*
* This will be the payload sent to the Lambda Function.
*
* Default: the entire EventBridge event
*
* @return {@code this}
* @param event The event to send to the Lambda. This parameter is required.
*/
@software.amazon.jsii.Stability(software.amazon.jsii.Stability.Level.Stable)
public Builder event(final software.amazon.awscdk.services.events.RuleTargetInput event) {
this.props().event(event);
return this;
}
/**
* @returns a newly built instance of {@link software.amazon.awscdk.services.events.targets.LambdaFunction}.
*/
@software.amazon.jsii.Stability(software.amazon.jsii.Stability.Level.Stable)
@Override
public software.amazon.awscdk.services.events.targets.LambdaFunction build() {
return new software.amazon.awscdk.services.events.targets.LambdaFunction(
this.handler,
this.props != null ? this.props.build() : null
);
}
private software.amazon.awscdk.services.events.targets.LambdaFunctionProps.Builder props() {
if (this.props == null) {
this.props = new software.amazon.awscdk.services.events.targets.LambdaFunctionProps.Builder();
}
return this.props;
}
}
}