ai.djl.serving.plugins

Interface RequestHandler<T>

public interface RequestHandler<T>

Interface to be implemented by HtttpRequestHandler.

Classes implementing this interface and populated as service using the SPI service-manifest are pickup by the serving plugin architectur and automatically registered as RequestHandler for HTTP Requests.

Method Summary

Modifier and Type	Method and Description
boolean	acceptInboundMessage(java.lang.Object msg) Returns true if this handler can handle the incoming HTTP request.
T	handleRequest(io.netty.channel.ChannelHandlerContext ctx, io.netty.handler.codec.http.FullHttpRequest req, io.netty.handler.codec.http.QueryStringDecoder decoder, java.lang.String[] segments) The main method which handles request.

Method Detail

acceptInboundMessage

boolean acceptInboundMessage(java.lang.Object msg)

Returns true if this handler can handle the incoming HTTP request.

The interface following the chain of responsibility pattern.

Parameters:

msg - the incoming HTTP message

Returns:

true if this handler can handle the incoming HTTP request. false otherwise

handleRequest

T handleRequest(io.netty.channel.ChannelHandlerContext ctx,
                io.netty.handler.codec.http.FullHttpRequest req,
                io.netty.handler.codec.http.QueryStringDecoder decoder,
                java.lang.String[] segments)

The main method which handles request.

This method is called by the framework if acceptInboundMessage indicates that this handler can handle the request.

Parameters:

ctx - the handler context.

req - the full HttpRequest object.

decoder - a query string decoder helps to parse the url query string.

segments - array of splitted segments of the path.

Returns:

a response or null. The response is returned to the client converting it to the requested format by the server.