BUG-509: break up SchemaAwareApplyOperation

[controller.git] / opendaylight / md-sal / sal-dom-broker / src / main / java / org / opendaylight / controller / md / sal / dom / store / impl / tree / data / ValueNodeModificationStrategy.java

diff --git a/opendaylight/md-sal/sal-dom-broker/src/main/java/org/opendaylight/controller/md/sal/dom/store/impl/tree/data/ValueNodeModificationStrategy.java b/opendaylight/md-sal/sal-dom-broker/src/main/java/org/opendaylight/controller/md/sal/dom/store/impl/tree/data/ValueNodeModificationStrategy.java
new file mode 100644 (file)
index 0000000..2892953
--- /dev/null
+++ b/opendaylight/md-sal/sal-dom-broker/src/main/java/org/opendaylight/controller/md/sal/dom/store/impl/tree/data/ValueNodeModificationStrategy.java
@@ -0,0 +1,85 @@
+/*
+ * Copyright (c) 2014 Cisco Systems, Inc. and others.  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
+ */package org.opendaylight.controller.md.sal.dom.store.impl.tree.data;
+
+ import static com.google.common.base.Preconditions.checkArgument;
+
+import org.opendaylight.controller.md.sal.dom.store.impl.tree.DataPreconditionFailedException;
+ import org.opendaylight.yangtools.yang.data.api.InstanceIdentifier;
+ import org.opendaylight.yangtools.yang.data.api.InstanceIdentifier.PathArgument;
+ import org.opendaylight.yangtools.yang.data.api.schema.LeafNode;
+ import org.opendaylight.yangtools.yang.data.api.schema.LeafSetEntryNode;
+ import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
+ import org.opendaylight.yangtools.yang.model.api.DataSchemaNode;
+ import org.opendaylight.yangtools.yang.model.api.LeafListSchemaNode;
+ import org.opendaylight.yangtools.yang.model.api.LeafSchemaNode;
+
+import com.google.common.base.Optional;
+ import com.google.common.primitives.UnsignedLong;
+
+ abstract class ValueNodeModificationStrategy<T extends DataSchemaNode> extends SchemaAwareApplyOperation {
+
+     private final T schema;
+     private final Class<? extends NormalizedNode<?, ?>> nodeClass;
+
+     protected ValueNodeModificationStrategy(final T schema, final Class<? extends NormalizedNode<?, ?>> nodeClass) {
+         super();
+         this.schema = schema;
+         this.nodeClass = nodeClass;
+     }
+
+     @Override
+     protected void verifyWrittenStructure(final NormalizedNode<?, ?> writtenValue) {
+         checkArgument(nodeClass.isInstance(writtenValue), "Node should must be of type %s", nodeClass);
+     }
+
+     @Override
+     public Optional<ModificationApplyOperation> getChild(final PathArgument child) {
+         throw new UnsupportedOperationException("Node " + schema.getPath()
+                 + "is leaf type node. Child nodes not allowed");
+     }
+
+     @Override
+     protected StoreMetadataNode applySubtreeChange(final NodeModification modification,
+             final StoreMetadataNode currentMeta, final UnsignedLong subtreeVersion) {
+         throw new UnsupportedOperationException("Node " + schema.getPath()
+                 + "is leaf type node. Subtree change is not allowed.");
+     }
+
+     @Override
+     protected StoreMetadataNode applyMerge(final NodeModification modification, final StoreMetadataNode currentMeta,
+             final UnsignedLong subtreeVersion) {
+         return applyWrite(modification, Optional.of(currentMeta), subtreeVersion);
+     }
+
+     @Override
+     protected StoreMetadataNode applyWrite(final NodeModification modification,
+             final Optional<StoreMetadataNode> currentMeta, final UnsignedLong subtreeVersion) {
+         return StoreMetadataNode.builder(subtreeVersion).setSubtreeVersion(subtreeVersion)
+                 .setData(modification.getWrittenValue()).build();
+     }
+
+     @Override
+     protected void checkSubtreeModificationApplicable(final InstanceIdentifier path,final NodeModification modification,
+             final Optional<StoreMetadataNode> current) throws DataPreconditionFailedException {
+         throw new DataPreconditionFailedException(path, "Subtree modification is not allowed.");
+     }
+
+     public static class LeafSetEntryModificationStrategy extends ValueNodeModificationStrategy<LeafListSchemaNode> {
+         @SuppressWarnings({ "unchecked", "rawtypes" })
+         protected LeafSetEntryModificationStrategy(final LeafListSchemaNode schema) {
+             super(schema, (Class) LeafSetEntryNode.class);
+         }
+     }
+
+     public static class LeafModificationStrategy extends ValueNodeModificationStrategy<LeafSchemaNode> {
+         @SuppressWarnings({ "unchecked", "rawtypes" })
+         protected LeafModificationStrategy(final LeafSchemaNode schema) {
+             super(schema, (Class) LeafNode.class);
+         }
+     }
+ }
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