WSO2 CEP now comes with two new improvements 1. Hot Bucket deployment
In earlier versions of WSO2 CEP cep-config.xml file is the only mean of deploying cep buckets via configuration. Here the configurations will be added only at server start up. With this improvement now we can deploy cep buckets at run time by dropping the bucket configuration file to the CARBON_HOME/repository/deployment/server/cepbuckets. Here each bucket configuration file can contain configuration of a single CEP bucket. This file need to have a .xml extension and follow the cep-config.xsd. E.g. <bucket xmlns="http://wso2.org/carbon/cep"; .... > .... configuration.... </bucket> 2. Enable custom event objects Now WSO2 CEP can not only process HashMaps but can also process any POJOs when sending and receiving events from CEP buckets. Using POJO facilitates user in writing quarries, specially when working with Drools. To configure cep bucket to handle custom POJO objects as events; 1. Create a jar containing the POJOs and add that to the CARBON_HOME/repository/components/lib 2. Define the class used as the event object at the cep configuration, according to the cep-config.xsd. E.g <bucket ... > ... <input ... > <mapping ... class="org.wso2.cep.event.Event"> .... </mapping> </input> ... </bucket> Here the Event class need to be provided only at the input mapping. This is because since WSO2 CEP will be receiving xml events, we have to define to what format CEP need to convert the input events, but at the output we do not define anything as CEP can automatically find-out the events and handle them. Regards Suho -- *S. Suhothayan * Software Engineer *WSO2, Inc. *http://wso2.com lean.enterprise.middleware. *email: **s...@wso2.com* <s...@wso2.com>* cell: (+94) 779 756 757 blog: **http://suhothayan.blogspot.com/* <http://suhothayan.blogspot.com/>* twitter: **http://twitter.com/suhothayan* <http://twitter.com/suhothayan>* linked-in: **http://lk.linkedin.com/in/suhothayan* * *
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