X-Git-Url: https://gerrit.simantics.org/r/gitweb?p=simantics%2Fplatform.git;a=blobdiff_plain;f=bundles%2Forg.simantics.document.server%2Fsrc%2Forg%2Fsimantics%2Fdocument%2Fserver%2Frequest%2FNodesRequest.java;fp=bundles%2Forg.simantics.document.server%2Fsrc%2Forg%2Fsimantics%2Fdocument%2Fserver%2Frequest%2FNodesRequest.java;h=11bf514c3440793b620ec0022c3c6201f4ff01ec;hp=0000000000000000000000000000000000000000;hb=969bd23cab98a79ca9101af33334000879fb60c5;hpb=866dba5cd5a3929bbeae85991796acb212338a08

diff --git a/bundles/org.simantics.document.server/src/org/simantics/document/server/request/NodesRequest.java b/bundles/org.simantics.document.server/src/org/simantics/document/server/request/NodesRequest.java
new file mode 100644
index 000000000..11bf514c3
--- /dev/null
+++ b/bundles/org.simantics.document.server/src/org/simantics/document/server/request/NodesRequest.java
@@ -0,0 +1,47 @@
+package org.simantics.document.server.request;
+
+import gnu.trove.set.hash.THashSet;
+
+import java.util.Collection;
+import java.util.Collections;
+import java.util.Set;
+
+import org.simantics.db.ReadGraph;
+import org.simantics.db.exception.DatabaseException;
+import org.simantics.db.layer0.request.VariableChildren;
+import org.simantics.db.layer0.request.VariableRead;
+import org.simantics.db.layer0.variable.Variable;
+import org.simantics.structural.stubs.StructuralResource2;
+
+public class NodesRequest extends VariableRead<Set<Variable>> {
+
+    public NodesRequest(Variable var) {
+        super(var);
+	}
+
+	@Override
+	public Set<Variable> perform(ReadGraph graph) throws DatabaseException {
+	    
+		long s = System.nanoTime();
+		
+		StructuralResource2.getInstance(graph);
+		if(variable == null)
+			return Collections.emptySet();
+
+		Set<Variable> nodes = new THashSet<Variable>();
+		Collection<Variable> children = graph.syncRequest(new VariableChildren(variable));
+		for(Variable child : children) {
+			Set<Variable> childNodes = graph.syncRequest(new NodesRequest2(child));
+			nodes.addAll(childNodes);
+		}
+		
+        if(DocumentRequest.PROFILE) {
+        	long dura = System.nanoTime()-s;
+        	System.err.println("NodesRequest " + System.identityHashCode(this) + " " + variable.getURI(graph) + " in " + 1e-6*dura + "ms.");
+        }
+		
+		return nodes;
+
+	}
+
+}
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