com.networknt.rpc

Interface Handler

public interface Handler

This is the interface that every business handler should extend from. It has two default methods that can be shared by all handlers.

Author:

Steve Hu

Field Summary

Fields

Modifier and Type	Field and Description
static String	ERROR_NOT_DEFINED
static org.slf4j.Logger	logger
static String	STATUS_VALIDATION_ERROR

Method Summary

Modifier and Type	Method and Description
default String	getStatus(io.undertow.server.HttpServerExchange exchange, com.networknt.status.Status status) There are situations that the downstream service returns an error status response and we just want to bubble up to the caller and eventually to the original caller.
default String	getStatus(io.undertow.server.HttpServerExchange exchange, String code, Object... args) Return a Status object so that the handler can get the HTTP response code to set exchange response.
ByteBuffer	handle(io.undertow.server.HttpServerExchange exchange, Object object)
default ByteBuffer	validate(String serviceId, Object object)

Field Detail

logger

static final org.slf4j.Logger logger

ERROR_NOT_DEFINED

static final String ERROR_NOT_DEFINED

See Also:

Constant Field Values

STATUS_VALIDATION_ERROR

static final String STATUS_VALIDATION_ERROR

See Also:

Constant Field Values

Method Detail

handle

ByteBuffer handle(io.undertow.server.HttpServerExchange exchange,
                  Object object)

validate

default ByteBuffer validate(String serviceId,
                            Object object)

getStatus

default String getStatus(io.undertow.server.HttpServerExchange exchange,
                         String code,
                         Object... args)

Return a Status object so that the handler can get the HTTP response code to set exchange response.

Parameters:

exchange - HttpServerExchange used to set the response code

code - Error code defined in status.yml

args - A number of arguments in the error description

Returns:

status Status object

getStatus

default String getStatus(io.undertow.server.HttpServerExchange exchange,
                         com.networknt.status.Status status)

There are situations that the downstream service returns an error status response and we just want to bubble up to the caller and eventually to the original caller.

Parameters:

exchange - HttpServerExchange

status - error status

Returns:

String the status string