Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.databoard / src / org / simantics / databoard / serialization / impl / MutableVariantSerializer.java

diff --git a/bundles/org.simantics.databoard/src/org/simantics/databoard/serialization/impl/MutableVariantSerializer.java b/bundles/org.simantics.databoard/src/org/simantics/databoard/serialization/impl/MutableVariantSerializer.java
new file mode 100644 (file)
index 0000000..569b05d
--- /dev/null
+++ b/bundles/org.simantics.databoard/src/org/simantics/databoard/serialization/impl/MutableVariantSerializer.java
@@ -0,0 +1,89 @@
+/*******************************************************************************\r
+ * Copyright (c) 2012 Association for Decentralized Information Management in\r
+ * 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.databoard.serialization.impl;\r
+\r
+import java.io.DataInput;\r
+import java.io.IOException;\r
+import java.util.ArrayList;\r
+import java.util.List;\r
+\r
+import org.simantics.databoard.Bindings;\r
+import org.simantics.databoard.binding.Binding;\r
+import org.simantics.databoard.binding.VariantBinding;\r
+import org.simantics.databoard.binding.error.BindingException;\r
+import org.simantics.databoard.serialization.Serializer;\r
+import org.simantics.databoard.serialization.SerializerScheme;\r
+import org.simantics.databoard.type.Datatype;\r
+\r
+/**\r
+ * A version of VariantSerializer that uses Bindings.getMutableBinding instead\r
+ * of Bindings.getBinding for deserialization.\r
+ * \r
+ * @author Tuukka Lehtonen\r
+ */\r
+public class MutableVariantSerializer extends VariantSerializer {\r
+\r
+       public MutableVariantSerializer(VariantBinding binding, SerializerScheme scheme) {\r
+               super(binding, scheme);\r
+       }\r
+\r
+       @Override\r
+       public Object deserialize(DataInput in, List<Object> identities) throws IOException {\r
+               try {\r
+                       List<Object> typeIdentities = new ArrayList<Object>(1);\r
+                       Datatype type = (Datatype) datatypeSerializer.deserialize(in, typeIdentities);\r
+                       Binding valueBinding = Bindings.getMutableBinding(type);\r
+                       Serializer valueSerializer = scheme.getSerializerUnchecked(valueBinding);\r
+                       assertRemainingBytes(in, valueSerializer.getMinSize());\r
+                       Object value = valueSerializer.deserialize(in, identities);\r
+                       return binding.create(valueBinding, value);\r
+               } catch (BindingException e) {\r
+                       throw new IOException( e ); \r
+               }\r
+       }\r
+\r
+       @Override\r
+       public void deserializeTo(DataInput in, List<Object> identities, Object obj) throws IOException {\r
+               try {\r
+                       List<Object> typeIdentities = new ArrayList<Object>(1);\r
+                       Datatype type = (Datatype) datatypeSerializer.deserialize(in, typeIdentities);\r
+                       Datatype oldType = binding.getContentType(obj);\r
+\r
+                       if (type.equals(oldType)) {\r
+                               Binding valueBinding = binding.getContentBinding(obj);\r
+                               Serializer valueSerializer = scheme.getSerializerUnchecked(valueBinding);\r
+                               Object component = binding.getContent(obj);\r
+//                             assertRemainingBytes(in, valueSerializer.getMinSize());\r
+                               component = valueSerializer.deserializeToTry(in, identities, component);\r
+                               binding.setContent(obj, valueBinding, component);\r
+                       } else {\r
+                               Binding valueBinding = Bindings.getMutableBinding(type);\r
+                               Serializer valueSerializer = scheme.getSerializerUnchecked(valueBinding);\r
+//                             assertRemainingBytes(in, valueSerializer.getMinSize());\r
+                               Object component = valueSerializer.deserialize(in, identities);\r
+                               binding.setContent(obj, valueBinding, component);\r
+                       }\r
+               } catch (BindingException e) {\r
+                       throw new IOException( e ); \r
+               }\r
+       }\r
+\r
+       @Override\r
+       public void skip(DataInput in, List<Object> identities) throws IOException {\r
+               List<Object> typeIdentities = new ArrayList<Object>(1);\r
+               Datatype type = (Datatype) datatypeSerializer.deserialize(in, typeIdentities);\r
+               Binding valueBinding = Bindings.getMutableBinding(type);\r
+               Serializer valueSerializer = scheme.getSerializerUnchecked(valueBinding);\r
+               valueSerializer.skip(in, identities);\r
+       }\r
+\r
+}
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