Package software.amazon.cloudformation

Class LambdaWrapper<ResourceT,CallbackT>

java.lang.Object

software.amazon.cloudformation.LambdaWrapper<ResourceT,CallbackT>

All Implemented Interfaces:

com.amazonaws.services.lambda.runtime.RequestStreamHandler

public abstract class LambdaWrapper<ResourceT,CallbackT>
extends Object
implements com.amazonaws.services.lambda.runtime.RequestStreamHandler

Field Summary

Fields

Modifier and Type	Field	Description
static software.amazon.awssdk.http.SdkHttpClient	HTTP_CLIENT

Constructor Summary

Constructors

Constructor	Description
LambdaWrapper(CredentialsProvider providerCredentialsProvider, LogPublisher platformEventsLogger, CloudWatchLogPublisher providerEventsLogger, MetricsPublisher providerMetricsPublisher, software.amazon.cloudformation.resource.SchemaValidator validator, Serializer serializer, software.amazon.awssdk.http.SdkHttpClient httpClient)

Method Summary

Modifier and Type	Method	Description
void	handleRequest(InputStream inputStream, OutputStream outputStream, com.amazonaws.services.lambda.runtime.Context context)
abstract ProgressEvent<ResourceT,CallbackT>	invokeHandler(AmazonWebServicesClientProxy proxy, ResourceHandlerRequest<ResourceT> request, Action action, CallbackT callbackContext)	Implemented by the handler package as the key entry point.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

HTTP_CLIENT

public static final software.amazon.awssdk.http.SdkHttpClient HTTP_CLIENT

Constructor Detail

LambdaWrapper

public LambdaWrapper(CredentialsProvider providerCredentialsProvider,
                     LogPublisher platformEventsLogger,
                     CloudWatchLogPublisher providerEventsLogger,
                     MetricsPublisher providerMetricsPublisher,
                     software.amazon.cloudformation.resource.SchemaValidator validator,
                     Serializer serializer,
                     software.amazon.awssdk.http.SdkHttpClient httpClient)

Method Detail

handleRequest

public void handleRequest(InputStream inputStream,
                          OutputStream outputStream,
                          com.amazonaws.services.lambda.runtime.Context context)
                   throws IOException,
                          TerminalException

Specified by:

handleRequest in interface com.amazonaws.services.lambda.runtime.RequestStreamHandler

Throws:

IOException

TerminalException

invokeHandler

public abstract ProgressEvent<ResourceT,CallbackT> invokeHandler(AmazonWebServicesClientProxy proxy,
                                                                       ResourceHandlerRequest<ResourceT> request,
                                                                       Action action,
                                                                       CallbackT callbackContext)
                                                                throws Exception

Implemented by the handler package as the key entry point.

Parameters:

proxy - Amazon webservice proxy to inject credentials correctly.

request - incoming request for the call

action - which action to take Action.CREATE, Action.DELETE, Action.READ Action.LIST or Action.UPDATE

callbackContext - the callback context to handle reentrant calls

Returns:

progress event indicating success, in progress with delay callback or failed state

Throws:

Exception - propagate any unexpected errors