Initial Move from Azure DevOps to GitHub

src/Explorer/Graph/GraphExplorerComponent/EdgeInfoCache.ts

@@ -0,0 +1,41 @@
+import { ObjectCache } from "../../../Common/ObjectCache";
+import { GremlinVertex, GraphData } from "./GraphData";
+
+/**
+ * Remember vertex edge information
+ */
+export class EdgeInfoCache extends ObjectCache<GremlinVertex> {
+  /**
+   * Add vertex to the cache. If already exists, merge all the edge information with the existing element
+   * @param vertex
+   */
+  public addVertex(vertex: GremlinVertex): void {
+    let v: GremlinVertex;
+    if (super.has(vertex.id)) {
+      v = super.get(vertex.id);
+      GraphData.addEdgeInfoToVertex(v, vertex);
+      v._outEdgeIds = vertex._outEdgeIds;
+      v._inEdgeIds = vertex._inEdgeIds;
+      v._outEAllLoaded = vertex._outEAllLoaded;
+      v._inEAllLoaded = vertex._inEAllLoaded;
+    } else {
+      v = vertex;
+    }
+    super.set(v.id, v);
+  }
+
+  /**
+   * If the target is in the cache, retrieve edge information from cache and merge to this target
+   * @param id
+   */
+  public mergeEdgeInfo(target: GremlinVertex): void {
+    if (super.has(target.id)) {
+      const cachedVertex = super.get(target.id);
+      GraphData.addEdgeInfoToVertex(target, cachedVertex);
+      target._outEdgeIds = cachedVertex._outEdgeIds;
+      target._inEdgeIds = cachedVertex._inEdgeIds;
+      target._outEAllLoaded = cachedVertex._outEAllLoaded;
+      target._inEAllLoaded = cachedVertex._inEAllLoaded;
+    }
+  }
+}