X-Git-Url: https://gerrit.simantics.org/r/gitweb?a=blobdiff_plain;f=bundles%2Forg.simantics.db.layer0%2Fsrc%2Forg%2Fsimantics%2Fdb%2Flayer0%2Frequest%2FInstantiateRequest.java;fp=bundles%2Forg.simantics.db.layer0%2Fsrc%2Forg%2Fsimantics%2Fdb%2Flayer0%2Frequest%2FInstantiateRequest.java;h=9878dea20da54e7ee8fe8e1698170de16d408826;hb=969bd23cab98a79ca9101af33334000879fb60c5;hp=0000000000000000000000000000000000000000;hpb=866dba5cd5a3929bbeae85991796acb212338a08;p=simantics%2Fplatform.git

diff --git a/bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/request/InstantiateRequest.java b/bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/request/InstantiateRequest.java
new file mode 100644
index 000000000..9878dea20
--- /dev/null
+++ b/bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/request/InstantiateRequest.java
@@ -0,0 +1,61 @@
+/*******************************************************************************
+ * 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.db.layer0.request;
+
+import java.util.Collection;
+import java.util.Map;
+
+import org.simantics.db.Resource;
+import org.simantics.db.WriteGraph;
+import org.simantics.db.common.utils.CommonDBUtils;
+import org.simantics.db.exception.DatabaseException;
+import org.simantics.layer0.Layer0;
+
+/**
+ * Instantiates given type using templates attached to the type.
+ * @author Hannu Niemistö
+ */
+public class InstantiateRequest extends ApplyTemplatesRequest {
+	Resource type;
+	
+	public InstantiateRequest(Resource type, Map<String, Object> parameters,
+			Collection<Resource> contexts) {
+		super(parameters, contexts);
+		this.type = type;
+	}
+	
+	public InstantiateRequest(Resource type, Map<String, Object> parameters) {
+		super(parameters);
+		this.type = type;
+	}
+	
+	public InstantiateRequest(Resource type) {
+		super();
+		this.type = type;
+	}
+
+	public Resource perform(WriteGraph g) throws DatabaseException {
+    	Layer0 b = Layer0.getInstance(g);
+	
+    	Resource parent = (Resource)parameters.get("parent");
+    	if(parent != null) CommonDBUtils.selectClusterSet(g, parent);
+    	
+		// Default instantiation logic
+		Resource instance = g.newResource();
+		g.newClusterSet(instance);
+		g.claim(instance, b.InstanceOf, null, type);
+		
+		perform(g, instance);
+		
+		return instance;
+	}
+}