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diff --git a/bundles/org.simantics.browsing.ui.graph.impl/src/org/simantics/browsing/ui/graph/impl/AsyncReadGraphDataSource.java b/bundles/org.simantics.browsing.ui.graph.impl/src/org/simantics/browsing/ui/graph/impl/AsyncReadGraphDataSource.java
new file mode 100644
index 000000000..d9ba3f152
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+++ b/bundles/org.simantics.browsing.ui.graph.impl/src/org/simantics/browsing/ui/graph/impl/AsyncReadGraphDataSource.java
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+/*******************************************************************************
+ * Copyright (c) 2007, 2010 Association for Decentralized Information Management
+ * in Industry THTH ry.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     VTT Technical Research Centre of Finland - initial API and implementation
+ *******************************************************************************/
+package org.simantics.browsing.ui.graph.impl;
+
+import java.util.function.Consumer;
+
+import org.simantics.browsing.ui.DataSource;
+import org.simantics.db.AsyncReadGraph;
+import org.simantics.db.AsyncRequestProcessor;
+import org.simantics.db.common.procedure.adapter.ProcedureAdapter;
+import org.simantics.db.common.request.AsyncReadRequest;
+import org.simantics.db.service.LifecycleSupport;
+import org.simantics.utils.ui.ErrorLogger;
+
+public class AsyncReadGraphDataSource implements DataSource<AsyncReadGraph> {
+
+    final private AsyncRequestProcessor processor;
+    final private LifecycleSupport ls;
+
+    public AsyncReadGraphDataSource(AsyncRequestProcessor processor) {
+        this.processor = processor;
+        this.ls = processor.getService(LifecycleSupport.class);
+    }
+
+    @Override
+    public void schedule(final Consumer<AsyncReadGraph> callback) {
+        if(ls.isClosing() || ls.isClosed()) return;
+        processor.asyncRequest(new AsyncReadRequest() {
+            @Override
+            public void run(AsyncReadGraph graph) {
+                if(ls.isClosing() || ls.isClosed()) return;
+                callback.accept(graph);
+            }
+        }, new ProcedureAdapter<Object>() {
+            @Override
+            public void exception(Throwable t) {
+                ErrorLogger.defaultLogError(t);
+            }
+        });
+    }
+
+    @Override
+    public Class<AsyncReadGraph> getProvidedClass() {
+        return AsyncReadGraph.class;
+    }
+
+}