Chapter 68. CometD Component

host

Required Hostname

String

port

Required Host port number

int

channelName

Required The channelName represents a topic that can be subscribed to by the Camel endpoints.

String

allowedOrigins (common)

The origins domain that support to cross, if the crosssOriginFilterOn is true

*

String

baseResource (common)

The root directory for the web resources or classpath. Use the protocol file: or classpath: depending if you want that the component loads the resource from file system or classpath. Classpath is required for OSGI deployment where the resources are packaged in the jar

String

crossOriginFilterOn (common)

If true, the server will support for cross-domain filtering

false

boolean

filterPath (common)

The filterPath will be used by the CrossOriginFilter, if the crosssOriginFilterOn is true

String

interval (common)

The client side poll timeout in milliseconds. How long a client will wait between reconnects

int

jsonCommented (common)

If true, the server will accept JSON wrapped in a comment and will generate JSON wrapped in a comment. This is a defence against Ajax Hijacking.

true

boolean

logLevel (common)

Logging level. 0=none, 1=info, 2=debug.

1

int

maxInterval (common)

The max client side poll timeout in milliseconds. A client will be removed if a connection is not received in this time.

30000

int

multiFrameInterval (common)

The client side poll timeout, if multiple connections are detected from the same browser.

1500

int

timeout (common)

The server side poll timeout in milliseconds. This is how long the server will hold a reconnect request before responding.

240000

int

bridgeErrorHandler (consumer)

Allows for bridging the consumer to the Camel routing Error Handler, which mean any exceptions occurred while the consumer is trying to pickup incoming messages, or the likes, will now be processed as a message and handled by the routing Error Handler. By default the consumer will use the org.apache.camel.spi.ExceptionHandler to deal with exceptions, that will be logged at WARN or ERROR level and ignored.

false

boolean

sessionHeadersEnabled (consumer)

Whether to include the server session headers in the Camel message when creating a Camel Message for incoming requests.

false

boolean

exceptionHandler (consumer)

To let the consumer use a custom ExceptionHandler. Notice if the option bridgeErrorHandler is enabled then this option is not in use. By default the consumer will deal with exceptions, that will be logged at WARN or ERROR level and ignored.

ExceptionHandler

exchangePattern (consumer)

Sets the exchange pattern when the consumer creates an exchange.

ExchangePattern

disconnectLocalSession (producer)

Whether to disconnect local sessions after publishing a message to its channel. Disconnecting local session is needed as they are not swept by default by CometD, and therefore you can run out of memory.

false

boolean

synchronous (advanced)

Sets whether synchronous processing should be strictly used, or Camel is allowed to use asynchronous processing (if supported).

false

boolean