EMF for OSGi and the Web
Turning the Eclipse Modeling Framework into first-class OSGi services — and bringing a full EMF/OCL stack to the web.
Eclipse Fennec extends EMF to work optimally with OSGi and adds the components needed for end-to-end, model-based applications — serialization and codecs, distributed model registries, persistence and validation. The work spans a ready-to-run application, a Java/OSGi core, and a TypeScript stack that brings EMF and OCL to the browser.
| Project | Description |
|---|---|
| model.atlas | Fennec Model Atlas — a distributed EMF model registry and repository service. |
| data.atlas | Fennec Data Atlas — data management service built on the Fennec stack. |
| dcat.atlas | Fennec DCAT-AP open data portal. |
| event.atlas | Fennec Event Atlas — EMF extension for the Eclipse sensiNact broker. |
| dcat.atlas.ui | Vue-based web UI for the Fennec DCAT Atlas. |
| Project | Description |
|---|---|
| emf.osgi | OSGi extension for EMF — dynamic model and package registries. |
| emf.util | Utilities and commons for Fennec EMF OSGi. |
| emf.codec | Jackson 3 based EMF serializer / de-serializer. |
| emf.odata | OData protocol support for EMF models. |
| emf.ogc.features | OGC API – Features implementation based on EMF. |
| emf.services | EMF-based, OSGi-inspired distributed service registry framework. |
| emf.m2x | EMF validation, transformation and generation. |
| emf.persistence-jpa | EMF JPA-like persistence using EclipseLink. |
| emf.search | Lucene index extension for EMF. |
| emf.editors | Custom EMF Eclipse editors. |
| emf.codegen-maven | Maven code generation for EMF OSGi. |
| emf.osgi-mcp | MCP OSGi whiteboard using EMF models as structured output. |
| common.models | Common EMF models (Ecore models). |
| fennec.models | Fennec-specific EMF models (e.g. compliance models). |
| camel | EMF Apache Camel whiteboard integration. |
| fennec.bnd.libraries | Fennec workspace and project libraries. |
| Project | Description |
|---|---|
| emf.ts | TypeScript based EMF. |
| emf.ts.codegen | TypeScript based EMF code generation. |
| emf.ts.codec.jsonschema | TypeScript based EMF codec for JSON Schema. |
| emf.ts.vue.registry | Vue-based registry for TypeScript EMF. |
| emf.ts.ui | UI model composer and editor packages for TypeScript EMF. |
| emf.odata.ui | TypeScript OData UI. |
| qvt.langium | QVT grammar and language server built with Langium. |
| ocl.engine | Object Constraint Language evaluation engine. |
| ocl.langium | OCL grammar built with Langium. |
| ocl.lsp.worker | OCL Langium language-server worker. |
| ocl.model | OCL model definitions. |
| Project | Description |
|---|---|
| emf.py | EMF implementation for Python. |
| emf.py.codegen | EMF code generation for Python. |
How the projects build on each other. Solid arrows are build-time dependencies
(bnd -library / -buildpath, npm and Python packages), shown as a transitive
reduction — an arrow is omitted when the dependency is already implied by
another path. Dotted arrows are runtime-only dependencies (launch / Docker
.bndrun assemblies). All Java projects ultimately build on emf.osgi and
fennec.bnd.libraries.
flowchart BT
subgraph apps["🚀 Applications"]
model_atlas["model.atlas"]; data_atlas["data.atlas"]; dcat_atlas["dcat.atlas"]; event_atlas["event.atlas"]; dcat_atlas_ui["dcat.atlas.ui"]
end
subgraph java["☕ Java / OSGi Core"]
fennec_bnd_libraries["fennec.bnd.libraries"]; emf_osgi["emf.osgi"]; emf_m2x["emf.m2x"]; emf_codec["emf.codec"]; common_models["common.models"]; fennec_models["fennec.models"]
emf_persistence_jpa["emf.persistence-jpa"]; emf_util["emf.util"]; emf_search["emf.search"]; emf_odata["emf.odata"]
emf_ogc_features["emf.ogc.features"]; emf_osgi_mcp["emf.osgi-mcp"]; emf_services["emf.services"]; camel["camel"]; emf_editors["emf.editors"]; emf_codegen_maven["emf.codegen-maven"]
end
subgraph ts["🌐 TypeScript Stack"]
emf_ts["emf.ts"]; emf_ts_codegen["emf.ts.codegen"]; emf_ts_codec_jsonschema["emf.ts.codec.jsonschema"]; emf_ts_vue_registry["emf.ts.vue.registry"]; emf_ts_ui["emf.ts.ui"]
emf_odata_ui["emf.odata.ui"]; ocl_model["ocl.model"]; ocl_engine["ocl.engine"]; ocl_langium["ocl.langium"]; ocl_lsp_worker["ocl.lsp.worker"]; qvt_langium["qvt.langium"]
end
subgraph py["🐍 Python Stack"]
emf_py["emf.py"]; emf_py_codegen["emf.py.codegen"]
end
emf_osgi --> fennec_bnd_libraries
emf_m2x --> emf_osgi
common_models --> emf_osgi
fennec_models --> emf_osgi
camel --> emf_osgi
emf_codec --> emf_m2x
emf_codec --> common_models
emf_persistence_jpa --> emf_codec
emf_util --> emf_persistence_jpa
emf_search --> emf_persistence_jpa
emf_odata --> emf_persistence_jpa
emf_ogc_features --> emf_persistence_jpa
emf_osgi_mcp --> emf_util
emf_services --> emf_osgi_mcp
dcat_atlas --> emf_util
dcat_atlas --> fennec_models
event_atlas --> emf_codec
event_atlas --> fennec_models
model_atlas --> dcat_atlas
model_atlas --> emf_osgi_mcp
data_atlas --> model_atlas
data_atlas --> emf_ogc_features
emf_ts_codegen --> emf_ts
emf_ts_codec_jsonschema --> emf_ts
emf_ts_vue_registry --> emf_ts
qvt_langium --> emf_ts
ocl_model --> emf_ts_codegen
ocl_engine --> ocl_model
ocl_langium --> ocl_engine
ocl_lsp_worker --> ocl_langium
emf_ts_ui --> emf_ts_vue_registry
emf_ts_ui --> ocl_langium
dcat_atlas_ui --> emf_ts_ui
emf_py_codegen --> emf_py
data_atlas -.-> emf_odata
dcat_atlas -.-> emf_services
emf_services -.-> emf_search
emf_osgi_mcp -.-> model_atlas
event_atlas -.-> model_atlas
event_atlas -.-> emf_osgi_mcp
model_atlas -.-> event_atlas
The central documentation hub lives at eclipse-fennec.github.io — start there for the project overview and links into each repository.
Contributions are welcome! Eclipse Fennec is an Eclipse Foundation project, so a few formalities apply:
- Sign the Eclipse Contributor Agreement (ECA).
- Sign off every commit per the Developer Certificate of Origin (
git commit -s). - Use the matching email address on your commits and your Eclipse account.
See SECURITY.md for how to report a vulnerability through the Eclipse Foundation's coordinated disclosure process.
Released under the Eclipse Public License 2.0.
