Binding2 runtime - Codecs - serialized

Change-Id: I45eef52b91b0a493d7352a7ea46479cb9fff709e
Signed-off-by: Jakub Toth <jakub.toth@pantheon.tech>

diff --git a/binding2/mdsal-binding2-dom-codec/src/main/java/org/opendaylight/mdsal/binding/javav2/dom/codec/serialized/LazySerializedContainerNode.java b/binding2/mdsal-binding2-dom-codec/src/main/java/org/opendaylight/mdsal/binding/javav2/dom/codec/serialized/LazySerializedContainerNode.java
new file mode 100644 (file)
index 0000000..6b543cc
--- /dev/null
+++ b/binding2/mdsal-binding2-dom-codec/src/main/java/org/opendaylight/mdsal/binding/javav2/dom/codec/serialized/LazySerializedContainerNode.java
@@ -0,0 +1,153 @@
+/*
+ * Copyright (c) 2017 Pantheon Technologies s.r.o. 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.mdsal.binding.javav2.dom.codec.serialized;
+
+import com.google.common.base.Optional;
+import java.util.Collection;
+import java.util.Map;
+import javax.annotation.Nonnull;
+import org.opendaylight.mdsal.binding.javav2.dom.codec.impl.BindingNormalizedNodeCodecRegistry;
+import org.opendaylight.mdsal.binding.javav2.spec.base.Instantiable;
+import org.opendaylight.yangtools.yang.common.QName;
+import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifier;
+import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.PathArgument;
+import org.opendaylight.yangtools.yang.data.api.schema.ContainerNode;
+import org.opendaylight.yangtools.yang.data.api.schema.DataContainerChild;
+import org.opendaylight.yangtools.yang.data.api.schema.LeafNode;
+import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
+import org.opendaylight.yangtools.yang.model.api.SchemaPath;
+
+/**
+ * Serialize operation from binding to DOM.
+ */
+public class LazySerializedContainerNode implements ContainerNode {
+
+    private final NodeIdentifier identifier;
+    private final Instantiable<?> bindingData;
+
+    private BindingNormalizedNodeCodecRegistry registry;
+    private ContainerNode domData;
+
+    private LazySerializedContainerNode(final QName identifier, final Instantiable<?> binding,
+            final BindingNormalizedNodeCodecRegistry registry) {
+        this.identifier = NodeIdentifier.create(identifier);
+        this.bindingData = binding;
+        this.registry = registry;
+        this.domData = null;
+    }
+
+    /**
+     * Prepare serializer of binding data with specific codec.
+     *
+     * @param operationName
+     *            - qname of operation
+     * @param data
+     *            - binding operation
+     * @param codec
+     *            - specifc codec for operation
+     * @return instance of lazy serialized container node
+     */
+    public static NormalizedNode<?, ?> create(final SchemaPath operationName, final Instantiable<?> data,
+            final BindingNormalizedNodeCodecRegistry codec) {
+        return new LazySerializedContainerNode(operationName.getLastComponent(), data, codec);
+    }
+
+    /**
+     * Prepare serializer of binding data with specific codec and pre-cached serialized leaf holding routing
+     * information.
+     *
+     * @param operationName
+     *            - operation name
+     * @param data
+     *            - Binding data
+     * @param contextRef
+     *            - leaf context reference
+     * @param codec
+     *            - specific codec
+     * @return insntance of lazy serialized container node with pre-cached serialized leaf
+     */
+    public static NormalizedNode<?, ?> withContextRef(final SchemaPath operationName, final Instantiable<?> data,
+            final LeafNode<?> contextRef, final BindingNormalizedNodeCodecRegistry codec) {
+        return new WithContextRef(operationName.getLastComponent(), data, contextRef, codec);
+    }
+
+    @Override
+    public Map<QName, String> getAttributes() {
+        return delegate().getAttributes();
+    }
+
+    private ContainerNode delegate() {
+        if (domData == null) {
+            domData = registry.toNormalizedNodeOperationData(bindingData);
+            registry = null;
+        }
+        return domData;
+    }
+
+    @Override
+    public final QName getNodeType() {
+        return identifier.getNodeType();
+    }
+
+    @Override
+    public final Collection<DataContainerChild<? extends PathArgument, ?>> getValue() {
+        return delegate().getValue();
+    }
+
+    @Nonnull
+    @Override
+    public final NodeIdentifier getIdentifier() {
+        return identifier;
+    }
+
+    @Override
+    public Optional<DataContainerChild<? extends PathArgument, ?>> getChild(final PathArgument child) {
+        return delegate().getChild(child);
+    }
+
+    @Override
+    public final Object getAttributeValue(final QName name) {
+        return delegate().getAttributeValue(name);
+    }
+
+    /**
+     * Get binding data.
+     *
+     * @return binding data.
+     */
+    public final Instantiable<?> bindingData() {
+        return bindingData;
+    }
+
+    /**
+     * Lazy Serialized Node with pre-cached serialized leaf holding routing information.
+     *
+     */
+    private static final class WithContextRef extends LazySerializedContainerNode {
+
+        private final LeafNode<?> contextRef;
+
+        private WithContextRef(final QName identifier, final Instantiable<?> binding, final LeafNode<?> contextRef,
+                final BindingNormalizedNodeCodecRegistry registry) {
+            super(identifier, binding, registry);
+            this.contextRef = contextRef;
+        }
+
+        @Override
+        public Optional<DataContainerChild<? extends PathArgument, ?>> getChild(final PathArgument child) {
+            /*
+             * Use precached value of routing field and do not run full serialization if we are accessing it.
+             */
+            if (contextRef.getIdentifier().equals(child)) {
+                return Optional.of(contextRef);
+            }
+            return super.getChild(child);
+        }
+    }
+
+}

diff --git a/binding2/mdsal-binding2-dom-codec/src/main/java/org/opendaylight/mdsal/binding/javav2/dom/codec/serialized/LazySerializedDOMNotification.java b/binding2/mdsal-binding2-dom-codec/src/main/java/org/opendaylight/mdsal/binding/javav2/dom/codec/serialized/LazySerializedDOMNotification.java
new file mode 100644 (file)
index 0000000..ace09cf
--- /dev/null
+++ b/binding2/mdsal-binding2-dom-codec/src/main/java/org/opendaylight/mdsal/binding/javav2/dom/codec/serialized/LazySerializedDOMNotification.java
@@ -0,0 +1,80 @@
+/*
+ * Copyright (c) 2017 Pantheon Technologies s.r.o. 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.mdsal.binding.javav2.dom.codec.serialized;
+
+import com.google.common.annotations.Beta;
+import javax.annotation.Nonnull;
+import org.opendaylight.mdsal.binding.javav2.dom.codec.api.serializer.BindingNormalizedNodeSerializer;
+import org.opendaylight.mdsal.binding.javav2.runtime.reflection.BindingReflections;
+import org.opendaylight.mdsal.binding.javav2.spec.base.Notification;
+import org.opendaylight.mdsal.dom.api.DOMNotification;
+import org.opendaylight.yangtools.yang.data.api.schema.ContainerNode;
+import org.opendaylight.yangtools.yang.model.api.SchemaPath;
+
+/**
+ * Lazy serialized implementation of DOM Notification.
+ *
+ * <p>
+ * This implementation performs serialization of data, only if receiver of notification actually accessed data
+ * from notification.
+ *
+ */
+@Beta
+public final class LazySerializedDOMNotification implements DOMNotification {
+
+    private final BindingNormalizedNodeSerializer codec;
+    private final Notification<?> data;
+    private final SchemaPath type;
+
+    private ContainerNode domBody;
+
+    private LazySerializedDOMNotification(final BindingNormalizedNodeSerializer codec, final Notification<?> data,
+            final SchemaPath type) {
+        this.codec = codec;
+        this.data = data;
+        this.type = type;
+    }
+
+    /**
+     * Create serializer of Binding notification data to DOM notification with specific codec.
+     *
+     * @param codec
+     *            - specific codec
+     * @param data
+     *            - binding notification data
+     * @return DOM notification serializer
+     */
+    public static DOMNotification create(final BindingNormalizedNodeSerializer codec, final Notification<?> data) {
+        final SchemaPath type = SchemaPath.create(true, BindingReflections.findQName(data.getClass()));
+        return new LazySerializedDOMNotification(codec, data, type);
+    }
+
+    @Nonnull
+    @Override
+    public SchemaPath getType() {
+        return type;
+    }
+
+    @Nonnull
+    @Override
+    public ContainerNode getBody() {
+        if (domBody == null) {
+            domBody = codec.toNormalizedNodeNotification(data);
+        }
+        return domBody;
+    }
+
+    /**
+     * Get binding notification data.
+     *
+     * @return binding notification data
+     */
+    public Notification<?> getBindingData() {
+        return data;
+    }
+}