added UpdateUiHistoryEvent

src/main/java/edu/stanford/protege/webprotege/gateway/websocket/ProjectChangedEmitterHandler.java

@@ -52,7 +52,6 @@ public void handleEvent(PackagedProjectChangeEvent event) {
             ProjectEventsQueryResponse response = new ProjectEventsQueryResponse();
             response.events = new EventList(EventTag.getFirst(), event.projectEvents(), EventTag.get(1));
             simpMessagingTemplate.send("/topic/project-events/" + event.projectId().id(), new GenericMessage<>(objectMapper.writeValueAsBytes(response)));
-
         } catch (Exception e) {
             LOGGER.error("Error forwarding the events through websocket");
         }

src/main/java/edu/stanford/protege/webprotege/gateway/websocket/config/ObjectMapperConfiguration.java

@@ -11,7 +11,7 @@
 import edu.stanford.protege.webprotege.change.OntologyChangedEvent;
 import edu.stanford.protege.webprotege.event.*;
 import edu.stanford.protege.webprotege.frame.*;
-import edu.stanford.protege.webprotege.gateway.websocket.config.events.ProjectLinearizationChangedEvent;
+import edu.stanford.protege.webprotege.gateway.websocket.config.events.UpdateUiHistoryEvent;
 import edu.stanford.protege.webprotege.hierarchy.EntityHierarchyChangedEvent;
 import edu.stanford.protege.webprotege.issues.CommentPostedEvent;
 import edu.stanford.protege.webprotege.issues.CommentUpdatedEvent;
@@ -314,7 +314,7 @@ public ObjectMapper objectMapper() {
                     OntologyBrowserTextChangedEvent.class,
                     PermissionsChangedEvent.class,
                     ProjectChangedEvent.class,
-                    ProjectLinearizationChangedEvent.class,
+                    UpdateUiHistoryEvent.class,
                     ProjectMovedToTrashEvent.class,
                     OntologyChangedEvent.class,
                     ProjectRemovedFromTrashEvent.class,

src/main/java/edu/stanford/protege/webprotege/gateway/websocket/config/events/UpdateUiHistoryEvent.java

@@ -0,0 +1,68 @@
+package edu.stanford.protege.webprotege.gateway.websocket.config.events;
+
+import com.fasterxml.jackson.annotation.*;
+import com.google.common.base.Objects;
+import edu.stanford.protege.webprotege.common.*;
+
+import java.util.Set;
+
+@JsonTypeName(UpdateUiHistoryEvent.CHANNEL)
+public record UpdateUiHistoryEvent(EventId eventId,
+                                   ProjectId projectId,
+                                   Set<String> affectedEntityIris) implements ProjectEvent {
+
+    @JsonCreator
+    public static UpdateUiHistoryEvent create(@JsonProperty("eventId") EventId eventId,
+                                              @JsonProperty("projectId") ProjectId projectId,
+                                              @JsonProperty("afectedEntityIris") Set<String> afectedEntityIris
+    ) {
+        return new UpdateUiHistoryEvent(eventId, projectId, afectedEntityIris);
+    }
+
+    public static final String CHANNEL = "webprotege.events.projects.uiHistory.UpdateUiHistoryEvent";
+
+    @JsonProperty("projectId")
+    public ProjectId projectId() {
+        return this.projectId;
+    }
+
+    @Override
+    @JsonProperty("eventId")
+    public EventId eventId() {
+        return eventId;
+    }
+
+    @Override
+    @JsonProperty("afectedEntityIris")
+    public Set<String> affectedEntityIris() {
+        return affectedEntityIris;
+    }
+
+    @Override
+    public String getChannel() {
+        return CHANNEL;
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) return true;
+        if (o == null || getClass() != o.getClass()) return false;
+        UpdateUiHistoryEvent that = (UpdateUiHistoryEvent) o;
+        return Objects.equal(eventId, that.eventId) && Objects.equal(projectId, that.projectId) && Objects.equal(affectedEntityIris, that.affectedEntityIris);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hashCode(eventId, projectId, affectedEntityIris);
+    }
+
+    @Override
+    public String toString() {
+        return "UpdateUiHistoryEvent{" +
+                "eventId=" + eventId +
+                ", projectId=" + projectId +
+                ", subjects=" + affectedEntityIris +
+                '}';
+    }
+
+}