Bug 499: Initial implementation of data tree modifications

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

diff --git a/opendaylight/md-sal/sal-dom-broker/src/main/java/org/opendaylight/controller/md/sal/dom/store/impl/DataAndMetadataSnapshot.java b/opendaylight/md-sal/sal-dom-broker/src/main/java/org/opendaylight/controller/md/sal/dom/store/impl/DataAndMetadataSnapshot.java
new file mode 100644 (file)
index 0000000..52f0051
--- /dev/null
+++ b/opendaylight/md-sal/sal-dom-broker/src/main/java/org/opendaylight/controller/md/sal/dom/store/impl/DataAndMetadataSnapshot.java
@@ -0,0 +1,94 @@
+/*
+ * 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;
+
+import org.opendaylight.controller.md.sal.dom.store.impl.tree.StoreMetadataNode;
+import org.opendaylight.controller.md.sal.dom.store.impl.tree.TreeNodeUtils;
+import org.opendaylight.yangtools.yang.data.api.InstanceIdentifier;
+import org.opendaylight.yangtools.yang.data.api.InstanceIdentifier.NodeIdentifier;
+import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
+import org.opendaylight.yangtools.yang.data.impl.schema.Builders;
+import org.opendaylight.yangtools.yang.model.api.SchemaContext;
+
+import com.google.common.base.Optional;
+
+class DataAndMetadataSnapshot {
+
+    private final StoreMetadataNode metadataTree;
+    private final Optional<SchemaContext> schemaContext;
+
+
+
+
+    private DataAndMetadataSnapshot(final StoreMetadataNode metadataTree, final Optional<SchemaContext> schemaCtx) {
+        this.metadataTree = metadataTree;
+        this.schemaContext = schemaCtx;
+    }
+
+    public static Builder builder() {
+        return new Builder();
+    }
+
+    public static DataAndMetadataSnapshot createEmpty(final NodeIdentifier rootNode) {
+        NormalizedNode<?, ?> data = Builders.containerBuilder().withNodeIdentifier(rootNode).build();
+        StoreMetadataNode metadata = StoreMetadataNode.builder()
+                .setData(data)
+                .build();
+        return new DataAndMetadataSnapshot(metadata,Optional.<SchemaContext>absent());
+    }
+
+    public static DataAndMetadataSnapshot createEmpty(final SchemaContext ctx) {
+        NodeIdentifier rootNodeIdentifier = new NodeIdentifier(ctx.getQName());
+        NormalizedNode<?, ?> data = Builders.containerBuilder().withNodeIdentifier(rootNodeIdentifier).build();
+        StoreMetadataNode metadata = StoreMetadataNode.builder()
+                .setData(data)
+                .build();
+        return new DataAndMetadataSnapshot(metadata, Optional.of(ctx));
+    }
+
+    public Optional<SchemaContext> getSchemaContext() {
+        return schemaContext;
+    }
+
+    public NormalizedNode<?, ?> getDataTree() {
+        return metadataTree.getData();
+    }
+
+    public StoreMetadataNode getMetadataTree() {
+        return metadataTree;
+    }
+
+    public Optional<StoreMetadataNode> read(final InstanceIdentifier path) {
+        return TreeNodeUtils.findNode(metadataTree, path);
+    }
+
+    public static class Builder {
+        private NormalizedNode<?, ?> dataTree;
+        private StoreMetadataNode metadataTree;
+        private SchemaContext schemaContext;
+
+        public NormalizedNode<?, ?> getDataTree() {
+            return dataTree;
+        }
+
+        public Builder setMetadataTree(final StoreMetadataNode metadataTree) {
+            this.metadataTree = metadataTree;
+            return this;
+        }
+
+        public Builder setSchemaContext(final SchemaContext schemaContext) {
+            this.schemaContext = schemaContext;
+            return this;
+        }
+
+        public DataAndMetadataSnapshot build() {
+            return new DataAndMetadataSnapshot(metadataTree, Optional.fromNullable(schemaContext));
+        }
+
+    }
+}