Cometd has been edited by Claus Ibsen (Jan 06, 2009).

Change summary:

added link to Davids blog with the sample

(View changes)

Content:

Cometd Component

The cometd: component is a transport for working with the jetty implementation of the cometd/bayeux protocol.
Using this component in combination with the dojo toolkit library it's possible to push Camel messages directly into the browser using an AJAX based mechanism.

URI format

cometd://host:port/channelname

The channelname represents a topic that can be subscribed by the Camel endpoints.

Examples

cometd://localhost:8080/service/mychannel
cometds://localhost:8443/service/mychannel

where cometds represents an SSL configured endpoint.

See this blog entry by David Greco whom contributed this component to Apache Camel, for a full sample.

Options

Name Default Value Description
resourceBase   It's the root directory for the web resources
timeout 240000 The server side poll timeout in milliseconds. This is how long the server will hold a reconnect request before responding.
interval 0 The client side poll timeout in milliseconds. How long a client will wait between reconnects
maxInterval 30000 The max client side poll timeout in milliseconds. A client will be removed if a connection is not received in this time.
multiFrameInterval 1500 the client side poll timeout if multiple connections are detected from the same browser
jsonCommented true If "true" then the server will accept JSON wrapped in a comment and will generate JSON wrapped in a comment. This is a defence against Ajax Hijacking
logLevel 1 0=none, 1=info, 2=debug

See Also

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