BUG-509: Move DataTree concepts into separate package

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

diff --git a/opendaylight/md-sal/sal-dom-broker/src/main/java/org/opendaylight/controller/md/sal/dom/store/impl/tree/data/InMemoryDataTreeSnapshot.java b/opendaylight/md-sal/sal-dom-broker/src/main/java/org/opendaylight/controller/md/sal/dom/store/impl/tree/data/InMemoryDataTreeSnapshot.java
new file mode 100644 (file)
index 0000000..96f1565
--- /dev/null
+++ b/opendaylight/md-sal/sal-dom-broker/src/main/java/org/opendaylight/controller/md/sal/dom/store/impl/tree/data/InMemoryDataTreeSnapshot.java
@@ -0,0 +1,45 @@
+package org.opendaylight.controller.md.sal.dom.store.impl.tree.data;
+
+import org.opendaylight.controller.md.sal.dom.store.impl.tree.DataTreeSnapshot;
+import org.opendaylight.controller.md.sal.dom.store.impl.tree.ModificationApplyOperation;
+import org.opendaylight.yangtools.yang.data.api.InstanceIdentifier;
+import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
+import org.opendaylight.yangtools.yang.data.impl.schema.NormalizedNodeUtils;
+import org.opendaylight.yangtools.yang.model.api.SchemaContext;
+
+import com.google.common.base.Optional;
+import com.google.common.base.Preconditions;
+
+final class InMemoryDataTreeSnapshot implements DataTreeSnapshot {
+    private final SchemaContext schemaContext;
+    private final StoreMetadataNode rootNode;
+
+    InMemoryDataTreeSnapshot(final SchemaContext schemaContext, final StoreMetadataNode rootNode) {
+        this.schemaContext = Preconditions.checkNotNull(schemaContext);
+        this.rootNode = Preconditions.checkNotNull(rootNode);
+    }
+
+       StoreMetadataNode getRootNode() {
+        return rootNode;
+    }
+
+    SchemaContext getSchemaContext() {
+        return schemaContext;
+    }
+
+    @Override
+       public Optional<NormalizedNode<?, ?>> readNode(final InstanceIdentifier path) {
+        return NormalizedNodeUtils.findNode(rootNode.getData(), path);
+    }
+
+    @Override
+       public InMemoryDataTreeModification newModification(ModificationApplyOperation applyOper) {
+               return new InMemoryDataTreeModification(this, applyOper);
+       }
+
+    @Override
+    public String toString() {
+        return rootNode.getSubtreeVersion().toString();
+    }
+
+}
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