Cleaned up Java Binding code from YANG Tools

[mdsal.git] / binding / mdsal-binding-dom-codec / src / main / java / org / opendaylight / yangtools / binding / data / codec / impl / LeafNodeCodecContext.java

diff --git a/binding/mdsal-binding-dom-codec/src/main/java/org/opendaylight/yangtools/binding/data/codec/impl/LeafNodeCodecContext.java b/binding/mdsal-binding-dom-codec/src/main/java/org/opendaylight/yangtools/binding/data/codec/impl/LeafNodeCodecContext.java
new file mode 100644 (file)
index 0000000..81d9f3a
--- /dev/null
+++ b/binding/mdsal-binding-dom-codec/src/main/java/org/opendaylight/yangtools/binding/data/codec/impl/LeafNodeCodecContext.java
@@ -0,0 +1,136 @@
+/*
+ * 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.binding.data.codec.impl;
+
+import com.google.common.base.Optional;
+import com.google.common.base.Preconditions;
+import com.google.common.collect.ImmutableCollection;
+import java.lang.reflect.Method;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.List;
+import org.opendaylight.yangtools.binding.data.codec.api.BindingCodecTreeNode;
+import org.opendaylight.yangtools.binding.data.codec.api.BindingNormalizedNodeCachingCodec;
+import org.opendaylight.yangtools.concepts.Codec;
+import org.opendaylight.yangtools.yang.binding.DataObject;
+import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
+import org.opendaylight.yangtools.yang.binding.InstanceIdentifier.PathArgument;
+import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
+import org.opendaylight.yangtools.yang.data.api.schema.LeafNode;
+import org.opendaylight.yangtools.yang.data.api.schema.LeafSetEntryNode;
+import org.opendaylight.yangtools.yang.data.api.schema.LeafSetNode;
+import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
+import org.opendaylight.yangtools.yang.data.api.schema.stream.NormalizedNodeStreamWriter;
+import org.opendaylight.yangtools.yang.model.api.DataSchemaNode;
+
+final class LeafNodeCodecContext<D extends DataObject> extends NodeCodecContext<D> implements NodeContextSupplier {
+
+    private final YangInstanceIdentifier.PathArgument yangIdentifier;
+    private final Codec<Object, Object> valueCodec;
+    private final Method getter;
+
+    public LeafNodeCodecContext(final DataSchemaNode schema, final Codec<Object, Object> codec, final Method getter) {
+        this.yangIdentifier = new YangInstanceIdentifier.NodeIdentifier(schema.getQName());
+        this.valueCodec = codec;
+        this.getter = getter;
+    }
+
+    @Override
+    protected YangInstanceIdentifier.PathArgument getDomPathArgument() {
+        return (yangIdentifier);
+    }
+
+    protected Codec<Object, Object> getValueCodec() {
+        return valueCodec;
+    }
+
+    @Override
+    public D deserialize(final NormalizedNode<?, ?> normalizedNode) {
+        throw new UnsupportedOperationException("Leaf can not be deserialized to DataObject");
+    }
+
+    @Override
+    public NodeCodecContext<?> get() {
+        return this;
+    }
+
+    final Method getGetter() {
+        return getter;
+    }
+
+    @Override
+    public BindingCodecTreeNode<?> bindingPathArgumentChild(final PathArgument arg,
+            final List<YangInstanceIdentifier.PathArgument> builder) {
+        throw new IllegalArgumentException("Leaf does not have children");
+    }
+
+    @Override
+    public BindingNormalizedNodeCachingCodec<D> createCachingCodec(
+            final ImmutableCollection<Class<? extends DataObject>> cacheSpecifier) {
+        throw new UnsupportedOperationException("Leaves does not support caching codec.");
+    }
+
+    @Override
+    public Class<D> getBindingClass() {
+        throw new UnsupportedOperationException("Leaf does not have DataObject representation");
+    }
+
+    @Override
+    public NormalizedNode<?, ?> serialize(final D data) {
+        throw new UnsupportedOperationException("Separete serialization of leaf node is not supported.");
+    }
+
+    @Override
+    public void writeAsNormalizedNode(final D data, final NormalizedNodeStreamWriter writer) {
+        throw new UnsupportedOperationException("Separete serialization of leaf node is not supported.");
+    }
+
+    @Override
+    public <E extends DataObject> BindingCodecTreeNode<E> streamChild(final Class<E> childClass) {
+        throw new IllegalArgumentException("Leaf does not have children");
+    }
+
+    @Override
+    public <E extends DataObject> Optional<? extends BindingCodecTreeNode<E>> possibleStreamChild(
+            final Class<E> childClass) {
+        throw new IllegalArgumentException("Leaf does not have children");
+    }
+
+    @Override
+    public BindingCodecTreeNode<?> yangPathArgumentChild(final YangInstanceIdentifier.PathArgument child) {
+        throw new IllegalArgumentException("Leaf does not have children");
+    }
+
+    @Override
+    protected Object deserializeObject(final NormalizedNode<?, ?> normalizedNode) {
+        if (normalizedNode instanceof LeafNode<?>) {
+            return valueCodec.deserialize(normalizedNode.getValue());
+        } else if(normalizedNode instanceof LeafSetNode<?>) {
+            @SuppressWarnings("unchecked")
+            final Collection<LeafSetEntryNode<Object>> domValues = ((LeafSetNode<Object>) normalizedNode).getValue();
+            final List<Object> result = new ArrayList<>(domValues.size());
+            for (final LeafSetEntryNode<Object> valueNode : domValues) {
+                result.add(valueCodec.deserialize(valueNode.getValue()));
+            }
+            return result;
+        }
+        return null;
+    }
+
+    @Override
+    public InstanceIdentifier.PathArgument deserializePathArgument(final YangInstanceIdentifier.PathArgument arg) {
+        Preconditions.checkArgument(getDomPathArgument().equals(arg));
+        return null;
+    }
+
+    @Override
+    public YangInstanceIdentifier.PathArgument serializePathArgument(final InstanceIdentifier.PathArgument arg) {
+        return getDomPathArgument();
+    }
+
+}
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