eclipse-sirius · sbegaudeau · Jan 21, 2026 · Jan 16, 2026
diff --git a/CHANGELOG.adoc b/CHANGELOG.adoc
@@ -146,6 +146,9 @@ The workbench view ID is now `related-views`.
 - https://github.com/eclipse-sirius/sirius-web/issues/6041[#6041] [sirius-web] The method `IEditingDomainFactory#createEditingDomain` will now require the `editingContextId` to be used
 - https://github.com/eclipse-sirius/sirius-web/issues/5910[#5910] [diagram] The `ReferencePosition` now uses a list of positions to take into account multiple drops.
 - https://github.com/eclipse-sirius/sirius-web/issues/6101[#6101] [sirius-web] The `NewProjectCard` will now ask for a `url`
+- https://github.com/eclipse-sirius/sirius-web/issues/5947[#5947] [sirius-web] Add support for publishing libraries from non-main editing contexts.
+`PublishLibrariesInput#projectId` has been replaced with `PublishLibrariesInput#editingContextId`.
+Note that the namespace of published libraries from studios still matches the `projectId` of the published studio.
 
 
 === Dependency update
@@ -267,6 +270,7 @@ The node action icons are now a little smaller and only appear after the node ha
 The only difference is that this new marker has a second range of two dots after the first range.
 - https://github.com/eclipse-sirius/sirius-web/issues/6101[#6101] [sirius-web] Allow more control of the redirect URL in the new project card
 - https://github.com/eclipse-sirius/sirius-web/issues/5909[#5909] [graphql] Improve the customization of GraphQL error messages
+- https://github.com/eclipse-sirius/sirius-web/issues/5947[#5947] [sirius-web] Add support for publishing libraries from non-main editing contexts.
 
 
 

diff --git a/...n/src/main/java/org/eclipse/sirius/web/application/library/dto/PublishLibrariesInput.java b/...n/src/main/java/org/eclipse/sirius/web/application/library/dto/PublishLibrariesInput.java
@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2025 Obeo.
+ * Copyright (c) 2025, 2026 Obeo.
  * This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v2.0
  * which accompanies this distribution, and is available at
@@ -23,6 +23,6 @@
  *
  * @author gdaniel
  */
-public record PublishLibrariesInput(@NotNull UUID id, @NotNull String projectId, @NotNull String publicationKind, @NotNull String version, @NotNull String description) implements IInput {
+public record PublishLibrariesInput(@NotNull UUID id, @NotNull String editingContextId, @NotNull String publicationKind, @NotNull String version, @NotNull String description) implements IInput {
 
 }
diff --git a/...lipse/sirius/web/application/studio/services/library/StudioLibraryPublicationHandler.java b/...lipse/sirius/web/application/studio/services/library/StudioLibraryPublicationHandler.java
@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2025 Obeo.
+ * Copyright (c) 2025, 2026 Obeo.
  * This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v2.0
  * which accompanies this distribution, and is available at
@@ -32,10 +32,8 @@
 import org.eclipse.sirius.web.application.studio.services.library.api.DependencyGraph;
 import org.eclipse.sirius.web.application.studio.services.library.api.IStudioLibraryDependencyCollector;
 import org.eclipse.sirius.web.application.studio.services.library.api.IStudioLibrarySemanticDataCreationService;
-import org.eclipse.sirius.web.domain.boundedcontexts.projectsemanticdata.services.api.IProjectSemanticDataSearchService;
 import org.eclipse.sirius.web.domain.boundedcontexts.semanticdata.SemanticData;
 import org.eclipse.sirius.web.domain.services.api.IMessageService;
-import org.springframework.data.jdbc.core.mapping.AggregateReference;
 import org.springframework.stereotype.Service;
 
 /**
@@ -50,16 +48,14 @@ public class StudioLibraryPublicationHandler implements ILibraryPublicationHandl
 
     private final IStudioLibraryDependencyCollector studioLibraryDependencyCollector;
 
-    private final IProjectSemanticDataSearchService projectSemanticDataSearchService;
-
     private final IStudioLibrarySemanticDataCreationService studioLibrarySemanticDataCreationService;
 
     private final IMessageService messageService;
 
-    public StudioLibraryPublicationHandler(IEditingContextSearchService editingContextSearchService, IStudioLibraryDependencyCollector studioLibraryDependencyCollector, IProjectSemanticDataSearchService projectSemanticDataSearchService, IStudioLibrarySemanticDataCreationService studioLibrarySemanticDataCreationService, IMessageService messageService) {
+    public StudioLibraryPublicationHandler(IEditingContextSearchService editingContextSearchService, IStudioLibraryDependencyCollector studioLibraryDependencyCollector,
+            IStudioLibrarySemanticDataCreationService studioLibrarySemanticDataCreationService, IMessageService messageService) {
         this.editingContextSearchService = Objects.requireNonNull(editingContextSearchService);
         this.studioLibraryDependencyCollector = Objects.requireNonNull(studioLibraryDependencyCollector);
-        this.projectSemanticDataSearchService = Objects.requireNonNull(projectSemanticDataSearchService);
         this.studioLibrarySemanticDataCreationService = Objects.requireNonNull(studioLibrarySemanticDataCreationService);
         this.messageService = Objects.requireNonNull(messageService);
     }
@@ -73,8 +69,7 @@ public boolean canHandle(PublishLibrariesInput input) {
     public IPayload handle(PublishLibrariesInput input) {
         IPayload result = new ErrorPayload(input.id(), this.messageService.unexpectedError());
 
-        Optional<IEMFEditingContext> optionalEditingContext = this.projectSemanticDataSearchService.findByProjectId(AggregateReference.to(input.projectId()))
-                .flatMap(projectSemanticData -> this.editingContextSearchService.findById(projectSemanticData.getSemanticData().getId().toString()))
+        Optional<IEMFEditingContext> optionalEditingContext = this.editingContextSearchService.findById(input.editingContextId())
                 .filter(IEMFEditingContext.class::isInstance)
                 .map(IEMFEditingContext.class::cast);
 

diff --git a/...ipse/sirius/web/application/studio/services/library/StudioLibraryPublicationListener.java b/...ipse/sirius/web/application/studio/services/library/StudioLibraryPublicationListener.java
@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2025 Obeo.
+ * Copyright (c) 2025, 2026 Obeo.
  * This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v2.0
  * which accompanies this distribution, and is available at
@@ -12,10 +12,16 @@
  *******************************************************************************/
 package org.eclipse.sirius.web.application.studio.services.library;
 
+import java.util.Objects;
+import java.util.Optional;
+
 import org.eclipse.sirius.web.application.library.dto.PublishLibrariesInput;
+import org.eclipse.sirius.web.application.project.services.api.IProjectEditingContextService;
 import org.eclipse.sirius.web.domain.boundedcontexts.library.Library;
 import org.eclipse.sirius.web.domain.boundedcontexts.library.services.api.ILibraryCreationService;
 import org.eclipse.sirius.web.domain.boundedcontexts.semanticdata.events.SemanticDataCreatedEvent;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import org.springframework.data.jdbc.core.mapping.AggregateReference;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Propagation;
@@ -32,8 +38,14 @@ public class StudioLibraryPublicationListener {
 
     private final ILibraryCreationService libraryCreationService;
 
-    public StudioLibraryPublicationListener(ILibraryCreationService libraryCreationService) {
-        this.libraryCreationService = libraryCreationService;
+    private final IProjectEditingContextService projectEditingContextService;
+
+    private final Logger logger = LoggerFactory.getLogger(StudioLibraryPublicationListener.class);
+
+
+    public StudioLibraryPublicationListener(ILibraryCreationService libraryCreationService, IProjectEditingContextService projectEditingContextService) {
+        this.libraryCreationService = Objects.requireNonNull(libraryCreationService);
+        this.projectEditingContextService = Objects.requireNonNull(projectEditingContextService);
     }
 
     @Transactional(propagation = Propagation.REQUIRES_NEW)
@@ -42,14 +54,20 @@ public void onSemanticDataCreatedEvent(SemanticDataCreatedEvent semanticDataCrea
         if (semanticDataCreatedEvent.causedBy() instanceof StudioLibrarySemanticDataCreationRequested request && request.causedBy() instanceof PublishLibrariesInput publishLibrariesInput) {
             var semanticData = semanticDataCreatedEvent.semanticData();
 
-            Library library = Library.newLibrary()
-                    .namespace(publishLibrariesInput.projectId())
-                    .name(request.libraryName())
-                    .semanticData(AggregateReference.to(semanticData.getId()))
-                    .version(publishLibrariesInput.version())
-                    .description(publishLibrariesInput.description())
-                    .build(semanticDataCreatedEvent);
-            this.libraryCreationService.createLibrary(library);
+            Optional<String> optionalProjectId = this.projectEditingContextService.getProjectId(publishLibrariesInput.editingContextId());
+
+            if (optionalProjectId.isPresent()) {
+                Library library = Library.newLibrary()
+                        .namespace(optionalProjectId.get())
+                        .name(request.libraryName())
+                        .semanticData(AggregateReference.to(semanticData.getId()))
+                        .version(publishLibrariesInput.version())
+                        .description(publishLibrariesInput.description())
+                        .build(semanticDataCreatedEvent);
+                this.libraryCreationService.createLibrary(library);
+            } else {
+                this.logger.warn("No project found for editing context {}", publishLibrariesInput.editingContextId());
+            }
         }
     }
 }
diff --git a/...ius/web/application/studio/services/library/StudioLibrarySemanticDataCreationService.java b/...ius/web/application/studio/services/library/StudioLibrarySemanticDataCreationService.java
@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2025 Obeo.
+ * Copyright (c) 2025, 2026 Obeo.
  * This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v2.0
  * which accompanies this distribution, and is available at
@@ -36,13 +36,16 @@
 import org.eclipse.sirius.web.application.editingcontext.services.api.IResourceToDocumentService;
 import org.eclipse.sirius.web.application.library.dto.PublishLibrariesInput;
 import org.eclipse.sirius.web.application.library.services.LibraryMetadataAdapter;
+import org.eclipse.sirius.web.application.project.services.api.IProjectEditingContextService;
 import org.eclipse.sirius.web.application.studio.services.library.api.DependencyGraph;
 import org.eclipse.sirius.web.application.studio.services.library.api.IStudioLibrarySemanticDataCreationService;
 import org.eclipse.sirius.web.domain.boundedcontexts.library.services.api.ILibrarySearchService;
 import org.eclipse.sirius.web.domain.boundedcontexts.semanticdata.SemanticData;
 import org.eclipse.sirius.web.domain.boundedcontexts.semanticdata.services.api.ISemanticDataCreationService;
 import org.eclipse.sirius.web.domain.services.IResult;
 import org.eclipse.sirius.web.domain.services.Success;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import org.springframework.data.jdbc.core.mapping.AggregateReference;
 import org.springframework.stereotype.Service;
 
@@ -62,12 +65,17 @@ public class StudioLibrarySemanticDataCreationService implements IStudioLibraryS
 
     private final ILibrarySearchService librarySearchService;
 
-    public StudioLibrarySemanticDataCreationService(IIdentityService identityService, IResourceToDocumentService resourceToDocumentService, ISemanticDataCreationService semanticDataCreationService, ILibrarySearchService librarySearchService) {
+    private final IProjectEditingContextService projectEditingContextService;
+
+    private final Logger logger = LoggerFactory.getLogger(StudioLibrarySemanticDataCreationService.class);
+
+    public StudioLibrarySemanticDataCreationService(IIdentityService identityService, IResourceToDocumentService resourceToDocumentService, ISemanticDataCreationService semanticDataCreationService,
+            ILibrarySearchService librarySearchService, IProjectEditingContextService projectEditingContextService) {
         this.identityService = Objects.requireNonNull(identityService);
         this.resourceToDocumentService = Objects.requireNonNull(resourceToDocumentService);
         this.semanticDataCreationService = Objects.requireNonNull(semanticDataCreationService);
         this.librarySearchService = Objects.requireNonNull(librarySearchService);
-
+        this.projectEditingContextService = Objects.requireNonNull(projectEditingContextService);
     }
 
     @Override
@@ -86,9 +94,14 @@ public Collection<SemanticData> createSemanticData(PublishLibrariesInput input,
                 } else {
                     // The shared component contains all its elements in its root, and its content may vary between version,
                     // it is more stable to use a fixed name as the resource identifier.
-                    String resourceId = input.projectId() + ":" + "shared_components";
-                    Resource sharedComponentsResource = this.getOrCreateLibraryResource("shared_components", resourceId, resourceSet);
-                    sharedComponentsResource.getContents().add(libraryCandidate);
+                    Optional<String> optionalProjectId = this.projectEditingContextService.getProjectId(input.editingContextId());
+                    if (optionalProjectId.isPresent()) {
+                        String resourceId = optionalProjectId.get() + ":" + "shared_components";
+                        Resource sharedComponentsResource = this.getOrCreateLibraryResource("shared_components", resourceId, resourceSet);
+                        sharedComponentsResource.getContents().add(libraryCandidate);
+                    } else {
+                        this.logger.warn("No project found for editing context {}", input.editingContextId());
+                    }
                 }
             }
         }
@@ -174,9 +187,9 @@ private List<AggregateReference<SemanticData, UUID>> getDependencies(DependencyG
         List<AggregateReference<SemanticData, UUID>> dependencies = new ArrayList<>();
         for (EObject dependencyCandidate : dependencyGraph.getDependencies(libraryCandidate)) {
             Optional<LibraryMetadataAdapter> optLibraryMetadata = dependencyCandidate.eResource().eAdapters().stream()
-                .filter(LibraryMetadataAdapter.class::isInstance)
-                .map(LibraryMetadataAdapter.class::cast)
-                .findFirst();
+                    .filter(LibraryMetadataAdapter.class::isInstance)
+                    .map(LibraryMetadataAdapter.class::cast)
+                    .findFirst();
             if (optLibraryMetadata.isPresent()) {
                 LibraryMetadataAdapter libraryMetadata = optLibraryMetadata.get();
                 this.librarySearchService.findByNamespaceAndNameAndVersion(libraryMetadata.getNamespace(), libraryMetadata.getName(), libraryMetadata.getVersion())

diff --git a/...es/sirius-web/backend/sirius-web-application/src/main/resources/schema/libraries.graphqls b/...es/sirius-web/backend/sirius-web-application/src/main/resources/schema/libraries.graphqls
@@ -49,7 +49,7 @@ extend type EditingContext {
 
 input PublishLibrariesInput {
   id: ID!
-  projectId: ID!
+  editingContextId: ID!
   publicationKind: String!
   version: String!
   description: String!
@@ -72,4 +72,4 @@ input UpdateLibraryInput {
   libraryId: String!
 }
 
-union UpdateLibraryPayload = ErrorPayload | SuccessPayload
+union UpdateLibraryPayload = ErrorPayload | SuccessPayload
diff --git a/...lipse/sirius/web/application/controllers/libraries/LibraryControllerIntegrationTests.java b/...lipse/sirius/web/application/controllers/libraries/LibraryControllerIntegrationTests.java
@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2025 Obeo.
+ * Copyright (c) 2025, 2026 Obeo.
  * This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v2.0
  * which accompanies this distribution, and is available at
@@ -149,15 +149,15 @@ public void givenSetOfLibrariesWhenQueryIsPerformedThenTheLibrariesAreReturned()
 
     @Test
     @GivenSiriusWebServer
-    @DisplayName("Given a valid studio project ID, when the publication mutation is performed, then the libraries are published")
-    public void givenValidStudioProjectIdWhenPublicationMutationIsPerformedThenLibrariesArePublished() {
+    @DisplayName("Given a valid studio editing context ID, when the publication mutation is performed, then the libraries are published")
+    public void givenValidStudioEditingContextIdWhenPublicationMutationIsPerformedThenLibrariesArePublished() {
         var page = this.librarySearchService.findAll(PageRequest.of(0, 10));
         long initialLibraryCount = page.getTotalElements();
 
         String version = "0.0.1";
         String description = "Initial version";
 
-        var input = new PublishLibrariesInput(UUID.randomUUID(), StudioIdentifiers.SAMPLE_STUDIO_PROJECT, "studio-all", version, description);
+        var input = new PublishLibrariesInput(UUID.randomUUID(), StudioIdentifiers.SAMPLE_STUDIO_EDITING_CONTEXT_ID, "studio-all", version, description);
         var result = this.publishLibrariesMutationRunner.run(input);
         TestTransaction.flagForCommit();
         TestTransaction.end();

diff --git a/packages/sirius-web/frontend/sirius-web-application/src/libraries/PublishLibraryDialog.tsx b/packages/sirius-web/frontend/sirius-web-application/src/libraries/PublishLibraryDialog.tsx
@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2025 Obeo.
+ * Copyright (c) 2025, 2026 Obeo.
  * This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v2.0
  * which accompanies this distribution, and is available at
@@ -66,7 +66,7 @@ export const PublishLibraryDialog = ({ open, title, message, publicationKind, on
   const { project } = useCurrentProject();
 
   const handlePublish = () => {
-    publishLibraries(project.id, publicationKind, state.version, state.description);
+    publishLibraries(project.currentEditingContext.id, publicationKind, state.version, state.description);
   };
 
   const isVersionInvalid = state.version.trim().length === 0;

diff --git a/packages/sirius-web/frontend/sirius-web-application/src/libraries/usePublishLibraries.ts b/packages/sirius-web/frontend/sirius-web-application/src/libraries/usePublishLibraries.ts
@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2025 Obeo.
+ * Copyright (c) 2025, 2026 Obeo.
  * This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v2.0
  * which accompanies this distribution, and is available at
@@ -71,11 +71,16 @@ export const usePublishLibraries = (): UsePublishLibrariesValue => {
     }
   }, [error, data]);
 
-  const publishLibraries = (projectId: string, publicationKind: string, version: string, description: string) => {
+  const publishLibraries = (
+    editingContextId: string,
+    publicationKind: string,
+    version: string,
+    description: string
+  ) => {
     const variables: GQLPublishLibrariesMutationVariables = {
       input: {
         id: crypto.randomUUID(),
-        projectId,
+        editingContextId,
         publicationKind,
         version,
         description,

diff --git a/...ges/sirius-web/frontend/sirius-web-application/src/libraries/usePublishLibraries.types.ts b/...ges/sirius-web/frontend/sirius-web-application/src/libraries/usePublishLibraries.types.ts
@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2025 Obeo.
+ * Copyright (c) 2025, 2026 Obeo.
  * This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v2.0
  * which accompanies this distribution, and is available at
@@ -25,7 +25,7 @@ export interface GQLPublishLibrariesMutationVariables {
 
 export interface GQLPublishLibrariesMutationInput {
   id: string;
-  projectId: string;
+  editingContextId: string;
   publicationKind: string;
   version: string;
   description: string;