Class QAbstractLambdaHandler

java.lang.Object

com.kingsrook.qqq.lambda.QAbstractLambdaHandler

All Implemented Interfaces:

com.amazonaws.services.lambda.runtime.RequestStreamHandler

Direct Known Subclasses:

QBaseCustomLambdaHandler, QStandardLambdaHandler

public abstract class QAbstractLambdaHandler
extends Object
implements com.amazonaws.services.lambda.runtime.RequestStreamHandler

Abstract base class for any and all QQQ lambda handlers. This class provides the method `handleRequest(InputStream, OutputStream, Context)`, which is what gets invoked by AWS Lambda. In there, we parse the data from the inputStream to build a QLambdaRequest - which is then passed to: `handleRequest(QLambdaRequest)` - which would be meant for implementing in a subclass.

Field Summary

Fields

Modifier and Type	Field	Description
protected com.amazonaws.services.lambda.runtime.Context	context
static final QLambdaResponse	GENERIC_SERVER_ERROR
static final QLambdaResponse	OK

Constructor Summary

Constructors

Constructor	Description
QAbstractLambdaHandler()	Constructor

Method Summary

Modifier and Type	Method	Description
protected QLambdaResponse	handleJsonRequest(QLambdaRequest request, org.json.JSONObject bodyJsonObject)	Meant to be overridden by subclasses, to provide functionality, if needed.
protected abstract QLambdaResponse	handleRequest(QLambdaRequest request)
void	handleRequest(InputStream inputStream, OutputStream outputStream, com.amazonaws.services.lambda.runtime.Context context)	Entrypoint from AWS Lambda.
protected void	log(String message)	Write to the cloudwatch logs.
protected void	log(String message, Throwable t)	Write to the cloudwatch logs.
protected void	log(Throwable t)
protected void	writeResponse(OutputStream outputStream, String requestId, QLambdaResponse response)

Methods inherited from class java.lang.Object

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

Field Details

context

protected com.amazonaws.services.lambda.runtime.Context context

GENERIC_SERVER_ERROR

public static final QLambdaResponse GENERIC_SERVER_ERROR

OK

public static final QLambdaResponse OK

Constructor Details

QAbstractLambdaHandler

public QAbstractLambdaHandler()

Constructor

Method Details

handleRequest

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

Entrypoint from AWS Lambda.

Specified by:

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

Throws:

IOException

handleRequest

protected abstract QLambdaResponse handleRequest(QLambdaRequest request)
                                          throws QException

Throws:

QException

handleJsonRequest

protected QLambdaResponse handleJsonRequest(QLambdaRequest request,
 org.json.JSONObject bodyJsonObject)
                                     throws QException

Meant to be overridden by subclasses, to provide functionality, if needed.

Throws:

QException

log

protected void log(String message)

Write to the cloudwatch logs.

log

protected void log(String message,
 Throwable t)

Write to the cloudwatch logs.

log

protected void log(Throwable t)

writeResponse

protected void writeResponse(OutputStream outputStream,
 String requestId,
 QLambdaResponse response)
                      throws IOException

Throws:

IOException