io.cloudevents.spring.messaging

Class CloudEventContextUtils

java.lang.Object

io.cloudevents.spring.messaging.CloudEventContextUtils

public class CloudEventContextUtils
extends Object

Utility class for copying message headers to and from CloudEventContext.

Author:

Dave Syer

Constructor Summary

Constructors

Constructor and Description
CloudEventContextUtils()

Method Summary

Modifier and Type	Method and Description
static io.cloudevents.CloudEventContext	fromMap(Map<String,Object> headers) Helper method for converting MessageHeaders to a CloudEventContext.
static Map<String,Object>	toMap(io.cloudevents.CloudEventContext context) Helper method for extracting MessageHeaders from a CloudEventContext.

Methods inherited from class java.lang.Object

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

Constructor Detail

CloudEventContextUtils

public CloudEventContextUtils()

Method Detail

fromMap

public static io.cloudevents.CloudEventContext fromMap(Map<String,Object> headers)
                                                throws io.cloudevents.rw.CloudEventRWException

Helper method for converting MessageHeaders to a CloudEventContext. The input headers must represent a valid event in "binary" form, i.e. it must have headers ce-id, ce-specversion etc.

Parameters:

headers - the input message headers

Returns:

a CloudEventContext that can be used to create a new CloudEvent

Throws:

io.cloudevents.rw.CloudEventRWException - if something goes wrong while converting the headers to CloudEventContext

toMap

public static Map<String,Object> toMap(io.cloudevents.CloudEventContext context)
                                throws io.cloudevents.rw.CloudEventRWException

Helper method for extracting MessageHeaders from a CloudEventContext. The result will contain headers canonicalized with a ce- prefix, analogous to the "binary" message format in Cloud Events.

Parameters:

context - the input CloudEventContext

Returns:

the response headers represented by the event

Throws:

io.cloudevents.rw.CloudEventRWException - if something goes wrong while converting the CloudEventContext to headers