Eliminate no-op MandatoryLeafEnforcer

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

diff --git a/yang/yang-data-impl/src/main/java/org/opendaylight/yangtools/yang/data/impl/schema/tree/ContainerModificationStrategy.java b/yang/yang-data-impl/src/main/java/org/opendaylight/yangtools/yang/data/impl/schema/tree/ContainerModificationStrategy.java
index c35232bd02cf67c291c64f740a06250aa4d81e42..361cfcf8f7df2ba8e55be91f7d600c8b30d00d3d 100644 (file)
--- a/yang/yang-data-impl/src/main/java/org/opendaylight/yangtools/yang/data/impl/schema/tree/ContainerModificationStrategy.java
+++ b/yang/yang-data-impl/src/main/java/org/opendaylight/yangtools/yang/data/impl/schema/tree/ContainerModificationStrategy.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2014 Cisco Systems, Inc. and others.  All rights reserved.
+ * Copyright (c) 2015 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,
@@ -8,21 +8,92 @@
 package org.opendaylight.yangtools.yang.data.impl.schema.tree;
 
 import static com.google.common.base.Preconditions.checkArgument;
+import static java.util.Objects.requireNonNull;
+
+import com.google.common.base.Preconditions;
+import java.util.Optional;
 import org.opendaylight.yangtools.yang.data.api.schema.ContainerNode;
 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
+import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeConfiguration;
+import org.opendaylight.yangtools.yang.data.api.schema.tree.spi.TreeNode;
+import org.opendaylight.yangtools.yang.data.api.schema.tree.spi.Version;
 import org.opendaylight.yangtools.yang.data.impl.schema.builder.api.DataContainerNodeBuilder;
 import org.opendaylight.yangtools.yang.data.impl.schema.builder.impl.ImmutableContainerNodeBuilder;
 import org.opendaylight.yangtools.yang.model.api.ContainerSchemaNode;
 
-final class ContainerModificationStrategy extends DataNodeContainerModificationStrategy<ContainerSchemaNode> {
-    ContainerModificationStrategy(final ContainerSchemaNode schemaNode) {
-        super(schemaNode, ContainerNode.class);
+/**
+ * General container modification strategy. This is used by {@link EnforcingMandatory} in case of presence containers
+ * with mandatory nodes, as it needs to tap into {@link SchemaAwareApplyOperation}'s operations, or subclassed
+ * for the purposes of {@link StructuralContainerModificationStrategy}'s automatic lifecycle.
+ */
+class ContainerModificationStrategy extends AbstractDataNodeContainerModificationStrategy<ContainerSchemaNode> {
+    private static final class EnforcingMandatory extends ContainerModificationStrategy {
+        private final MandatoryLeafEnforcer enforcer;
+
+        EnforcingMandatory(final ContainerSchemaNode schemaNode, final DataTreeConfiguration treeConfig,
+                final MandatoryLeafEnforcer enforcer) {
+            super(schemaNode, treeConfig);
+            this.enforcer = requireNonNull(enforcer);
+        }
+
+        @Override
+        void verifyStructure(final NormalizedNode<?, ?> writtenValue, final boolean verifyChildren) {
+            super.verifyStructure(writtenValue, verifyChildren);
+            if (verifyChildren) {
+                enforcer.enforceOnData(writtenValue);
+            }
+        }
+
+        @Override
+        protected TreeNode applyMerge(final ModifiedNode modification, final TreeNode currentMeta,
+                final Version version) {
+            final TreeNode ret = super.applyMerge(modification, currentMeta, version);
+            enforcer.enforceOnTreeNode(ret);
+            return ret;
+        }
+
+        @Override
+        protected TreeNode applyWrite(final ModifiedNode modification, final NormalizedNode<?, ?> newValue,
+                final Optional<TreeNode> currentMeta, final Version version) {
+            final TreeNode ret = super.applyWrite(modification, newValue, currentMeta, version);
+            enforcer.enforceOnTreeNode(ret);
+            return ret;
+        }
+
+        @Override
+        protected TreeNode applyTouch(final ModifiedNode modification, final TreeNode currentMeta,
+                final Version version) {
+            final TreeNode ret = super.applyTouch(modification, currentMeta, version);
+            enforcer.enforceOnTreeNode(ret);
+            return ret;
+        }
+    }
+
+    ContainerModificationStrategy(final ContainerSchemaNode schemaNode, final DataTreeConfiguration treeConfig) {
+        super(schemaNode, ContainerNode.class, treeConfig);
+    }
+
+    static ModificationApplyOperation of(final ContainerSchemaNode schema, final DataTreeConfiguration treeConfig) {
+        if (schema.isPresenceContainer()) {
+            final Optional<MandatoryLeafEnforcer> enforcer = MandatoryLeafEnforcer.forContainer(schema, treeConfig);
+            return enforcer.isPresent() ? new EnforcingMandatory(schema, treeConfig, enforcer.get())
+                    : new ContainerModificationStrategy(schema, treeConfig);
+        }
+
+        return new StructuralContainerModificationStrategy(schema, treeConfig);
     }
 
     @Override
     @SuppressWarnings("rawtypes")
-    protected DataContainerNodeBuilder createBuilder(final NormalizedNode<?, ?> original) {
+    protected final DataContainerNodeBuilder createBuilder(final NormalizedNode<?, ?> original) {
         checkArgument(original instanceof ContainerNode);
         return ImmutableContainerNodeBuilder.create((ContainerNode) original);
     }
-}
\ No newline at end of file
+
+    @Override
+    protected NormalizedNode<?, ?> createEmptyValue(final NormalizedNode<?, ?> original) {
+        Preconditions.checkArgument(original instanceof ContainerNode);
+        return ImmutableContainerNodeBuilder.create().withNodeIdentifier(((ContainerNode) original).getIdentifier())
+                .build();
+    }
+}