The Salesforcebulk connector allows you to access the Salesforcebulk REST API through WSO2 ESB. SalesforceBulk is a RESTful API that is optimal for loading or deleting large sets of data.You can use it to query, insert, update, upsert, or delete a large number of records asynchronously by submitting batches that Salesforce processes in the background.
mvn clean install
You can create a third party connector and publish in WSO2 Store.
https://docs.wso2.com/display/ESBCONNECTORS/Creating+and+Publishing+a+Third+Party+Connector