com.amazonaws.serverless.proxy

Class InitializationWrapper

java.lang.Object

com.amazonaws.serverless.proxy.InitializationWrapper

Direct Known Subclasses:

AsyncInitializationWrapper

public class InitializationWrapper
extends Object

This class is in charge of initializing a LambdaContainerHandler. In most cases, this means calling the LambdaContainerHandler.initialize() method. Some implementations may require additional initialization steps, in this case implementations should provide their own InitializationWrapper. This library includes an async implementation of this class AsyncInitializationWrapper for frameworks that are likely to take longer than 10 seconds to start.

Constructor Summary

Constructors

Constructor and Description
InitializationWrapper()

Method Summary

Modifier and Type	Method and Description
CountDownLatch	getInitializationLatch() Asynchronous implementations of the framework should return a latch that the container handler can use to decide whether it can start handling events.
void	start(LambdaContainerHandler handler) This is the main entry point.

Methods inherited from class java.lang.Object

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

Constructor Detail

InitializationWrapper

public InitializationWrapper()

Method Detail

start

public void start(LambdaContainerHandler handler)
           throws ContainerInitializationException

This is the main entry point. Container handler builder and the static getAwsProxyHandler() methods of the various implementations will call this to initialize the underlying framework

Parameters:

handler - The container handler to be initializer

Throws:

ContainerInitializationException - If anything goes wrong during container initialization.

getInitializationLatch

public CountDownLatch getInitializationLatch()

Asynchronous implementations of the framework should return a latch that the container handler can use to decide whether it can start handling events. Synchronous implementations of this interface should return null.

Returns:

An initialized latch if the underlying container is starting in a separate thread, null otherwise.