Need to allow adding of model definitions and processors in camel components
without involving the camel-core
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Key: CAMEL-1900
URL: https://issues.apache.org/activemq/browse/CAMEL-1900
Project: Apache Camel
Issue Type: Improvement
Components: camel-core
Affects Versions: 2.0-M3
Reporter: Ashwin Karpe
Please see the synopsis of my problem below...
- Ashwin
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I recently submitted an camel-cache component based on Ehcache to the Apache
Camel community (CAMEL-1868). The component has an event based Cache consumer
and a Cache Producer to write to the cache.
I was planning on adding several processors that would do selective cache
contents based replacement at the payload/token/XPath level. I have the code
written and working however, I was planning on adding a nice model definition
to bring it all together via DSL. This is where I ran into a serious problem.
The problem is the following
a> The processors are in the cache component and I extended the base
interface processor and I can do the following in unit tests and it works.
from("cache://TestCache1").
filter(header("CACHE_KEY").isEqualTo("quote")).
process (new
CacheBasedTokenReplacer("cache://TestCache1","cache_key","##tag##")).
to("direct:next");
b> I put together a CamelCacheDefinition class (see attached)
- in the camel-cache component (not camel-core)
- that uses package org.apache.camel.model.cache
- and extends
ProcessorDefinition<CacheProcessorDefinition> from package
org.apache.camel.model
c> I would like the following effect
from("cache://TestCache1").
filter(header("CACHE_KEY").isEqualTo("quote")).
applycachevalue("cache://TestCache1","cache_key","##tag##").
to("direct:next");
The problem is that when I develop the unit test and try to do intellisense, I
do not see applycachevalue() against ProcessorDefinition (this part I
understand, since it is not seeing the CacheDefinition entry) since this
capabilty comes from the processorDefinition in came-core. What I am trying to
see is
a> How can I do this without having to modify the ProcessorDefinition
in camel-core and keep my CacheDefinition in the camel-cache component.
b> I do not wish to add the ehCache dependency in the camel-core and
bloat the core. Also, the Producer and Consumer ehCache components are all
related to the processors and I would like to avoid fragmentation of the
processors from the components.
b> If not and I do have to move the CacheDefinition into the
camel-core, can I still keep the processors in camel-cache component and
intellisense without side-effects ( I suspect I can through the groups setup in
camel-core but I need to verify)
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