Andrus Adamchik created CAY-2942:
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Summary: CayenneModeler MCP: cgen_run tool
Key: CAY-2942
URL: https://issues.apache.org/jira/browse/CAY-2942
Project: Cayenne
Issue Type: Task
Reporter: Andrus Adamchik
Assignee: Andrus Adamchik
Fix For: 5.0-M2
Add a new {{cgen_run}} tool to the CayenneModeler MCP server (on top of
CAY-2936 scaffolding) that runs Cayenne's class generator for a single DataMap,
using the {{cgen}} config already stored in the DataMap XML. Inputs are an
absolute {{projectPath}} to the top-level {{cayenne-*.xml}} and a {{dataMap}}
symbolic name. The tool reports only the runtime delta — what cgen did on disk
— since the agent can read config from XML on its own.
Validation runs in fixed order and short-circuits: project readable, parses,
DataMap present, cgen config present, destDir specified, destDir writable. The
response envelope is always the same shape: {{status}} ({{{}generated{}}},
{{{}up_to_date{}}}, {{{}validation_failed{}}}, {{{}error{}}}), {{summary}} with
filesConsidered/filesWritten, a {{files}} array of written files (each with
server-classified {{kind}} and {{{}sourceEntity{}}}), {{{}resolved.destDir{}}},
captured warnings, a per-step {{validation}} block, and an {{error}} object
with a stable code enum.
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