Propagate EffectiveModelContext to more places

[yangtools.git] / yang / yang-data-impl / src / main / java / org / opendaylight / yangtools / yang / data / impl / schema / tree / InMemoryDataTreeSnapshot.java

diff --git a/yang/yang-data-impl/src/main/java/org/opendaylight/yangtools/yang/data/impl/schema/tree/InMemoryDataTreeSnapshot.java b/yang/yang-data-impl/src/main/java/org/opendaylight/yangtools/yang/data/impl/schema/tree/InMemoryDataTreeSnapshot.java
index 0e61cd4031605bb221f5abd22eadedb95079168a..688020401c844106b936865092bc257038e1e4fc 100644 (file)
--- a/yang/yang-data-impl/src/main/java/org/opendaylight/yangtools/yang/data/impl/schema/tree/InMemoryDataTreeSnapshot.java
+++ b/yang/yang-data-impl/src/main/java/org/opendaylight/yangtools/yang/data/impl/schema/tree/InMemoryDataTreeSnapshot.java
@@ -1,39 +1,52 @@
+/*
+ * 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.yangtools.yang.data.impl.schema.tree;
 
+import static com.google.common.base.Preconditions.checkArgument;
+import static java.util.Objects.requireNonNull;
 
+import java.util.Optional;
+import org.eclipse.jdt.annotation.NonNull;
 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
-import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeSnapshot;
+import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNodeContainer;
+import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNodes;
+import org.opendaylight.yangtools.yang.data.api.schema.tree.CursorAwareDataTreeSnapshot;
+import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeSnapshotCursor;
 import org.opendaylight.yangtools.yang.data.api.schema.tree.spi.TreeNode;
-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 RootModificationApplyOperation applyOper;
-    private final SchemaContext schemaContext;
-    private final TreeNode rootNode;
-
-    InMemoryDataTreeSnapshot(final SchemaContext schemaContext, final TreeNode rootNode,
-            final RootModificationApplyOperation applyOper) {
-        this.schemaContext = Preconditions.checkNotNull(schemaContext);
-        this.rootNode = Preconditions.checkNotNull(rootNode);
-        this.applyOper = Preconditions.checkNotNull(applyOper);
+import org.opendaylight.yangtools.yang.model.api.EffectiveModelContext;
+import org.opendaylight.yangtools.yang.model.api.EffectiveModelContextProvider;
+
+final class InMemoryDataTreeSnapshot extends AbstractCursorAware implements CursorAwareDataTreeSnapshot,
+        EffectiveModelContextProvider {
+    private final @NonNull RootApplyStrategy applyOper;
+    private final @NonNull EffectiveModelContext schemaContext;
+    private final @NonNull TreeNode rootNode;
+
+    InMemoryDataTreeSnapshot(final EffectiveModelContext schemaContext, final TreeNode rootNode,
+            final RootApplyStrategy applyOper) {
+        this.schemaContext = requireNonNull(schemaContext);
+        this.rootNode = requireNonNull(rootNode);
+        this.applyOper = requireNonNull(applyOper);
     }
 
     TreeNode getRootNode() {
         return rootNode;
     }
 
-    SchemaContext getSchemaContext() {
+    @Override
+    public EffectiveModelContext getEffectiveModelContext() {
         return schemaContext;
     }
 
     @Override
     public Optional<NormalizedNode<?, ?>> readNode(final YangInstanceIdentifier path) {
-        return NormalizedNodeUtils.findNode(rootNode.getData(), path);
+        return NormalizedNodes.findNode(rootNode.getData(), path);
     }
 
     @Override
@@ -41,9 +54,16 @@ final class InMemoryDataTreeSnapshot implements DataTreeSnapshot {
         return new InMemoryDataTreeModification(this, applyOper);
     }
 
+    @Override
+    public Optional<DataTreeSnapshotCursor> openCursor(final YangInstanceIdentifier path) {
+        return NormalizedNodes.findNode(rootNode.getData(), path).map(root -> {
+            checkArgument(root instanceof NormalizedNodeContainer, "Child %s is not a container", path);
+            return openCursor(new InMemoryDataTreeSnapshotCursor(this, path, (NormalizedNodeContainer<?, ?, ?>)root));
+        });
+    }
+
     @Override
     public String toString() {
         return rootNode.getSubtreeVersion().toString();
     }
-
-}
\ No newline at end of file
+}