Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.layer0.utils / src / org / simantics / layer0 / utils / property / providers / CombinedPropertyProvider.java

diff --git a/bundles/org.simantics.layer0.utils/src/org/simantics/layer0/utils/property/providers/CombinedPropertyProvider.java b/bundles/org.simantics.layer0.utils/src/org/simantics/layer0/utils/property/providers/CombinedPropertyProvider.java
new file mode 100644 (file)
index 0000000..334fc95
--- /dev/null
+++ b/bundles/org.simantics.layer0.utils/src/org/simantics/layer0/utils/property/providers/CombinedPropertyProvider.java
@@ -0,0 +1,54 @@
+/*******************************************************************************\r
+ * Copyright (c) 2007, 2010 Association for Decentralized Information Management\r
+ * in Industry THTH ry.\r
+ * All rights reserved. This program and the accompanying materials\r
+ * are made available under the terms of the Eclipse Public License v1.0\r
+ * which accompanies this distribution, and is available at\r
+ * http://www.eclipse.org/legal/epl-v10.html\r
+ *\r
+ * Contributors:\r
+ *     VTT Technical Research Centre of Finland - initial API and implementation\r
+ *******************************************************************************/\r
+package org.simantics.layer0.utils.property.providers;\r
+\r
+import java.util.Collection;\r
+import java.util.HashMap;\r
+import java.util.Map;\r
+\r
+import org.simantics.db.ReadGraph;\r
+import org.simantics.db.Resource;\r
+import org.simantics.db.WriteGraph;\r
+import org.simantics.db.exception.DatabaseException;\r
+\r
+@Deprecated\r
+public class CombinedPropertyProvider implements IPropertyProvider {\r
+\r
+    private Map<Resource[], IPropertyProvider> providerMap = new HashMap<Resource[], IPropertyProvider>();\r
+\r
+    public void addProvider(ReadGraph graph, IPropertyProvider provider) {\r
+        for (Resource[] key : provider.provides(graph))\r
+            providerMap.put(key, provider);\r
+    }\r
+\r
+    @Override\r
+    public Object get(ReadGraph graph, final Resource resource, Resource... relations) throws DatabaseException {\r
+        IPropertyProvider provider = providerMap.get(relations);\r
+        if (provider == null)\r
+            return null;\r
+        return provider.get(graph, resource, relations);\r
+    }\r
+\r
+    @Override\r
+    public Collection<Resource[]> provides(ReadGraph graph) {\r
+        return providerMap.keySet();\r
+    }\r
+\r
+    @Override\r
+    public void set(WriteGraph graph, Object value, Resource resource, Resource... relations) throws DatabaseException {\r
+        IPropertyProvider provider = providerMap.get(relations);\r
+        if (provider == null)\r
+            throw new DoesNotHaveProperty();\r
+        provider.set(graph, value, resource, relations);\r
+    }\r
+\r
+}\r