Jerry Cwiklik created UIMA-5756:
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Summary: UIMA-DUCC: Create new project for the pull service
Key: UIMA-5756
URL: https://issues.apache.org/jira/browse/UIMA-5756
Project: UIMA
Issue Type: New Feature
Components: DUCC
Reporter: Jerry Cwiklik
Assignee: Jerry Cwiklik
Fix For: 2.2.3-Ducc
Currently, Ducc's pull service is made up of classes from common, transport,
user, and container projects. Its transport and protocol handler are fixed in
the code. No way to plug in alternatives. The service is configured via -D's
and env vars. Such approach prevents collocating multiple services in the same
JVM.
The proposal is to move/refactor transport, protocol handler related classes to
a new project uima-ducc-pullservice. Also, move/refactor wrapper code which
deploys UIMA aggregate pipelines. The new project will be self contained with
no dependency on other Ducc projects/jars. It will have dependency on UIMA,
HttpClient, and Jetty.
The new code will allow an application to instantiate as many instances of a
service as it needs. It will allow to plugin custom ProtocolHandler,
ErrorHandler, and ServiceMonitor with default implementation for these provided.
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