+/*
+ * Copyright (c) 2013 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.codec.xml;
+import static com.google.common.base.Preconditions.checkState;
+
+import java.net.URI;
+import java.util.List;
+import java.util.Map.Entry;
import java.util.Set;
import javax.activation.UnsupportedDataTypeException;
import javax.xml.parsers.ParserConfigurationException;
import org.opendaylight.yangtools.yang.common.QName;
+import org.opendaylight.yangtools.yang.data.api.AttributesContainer;
import org.opendaylight.yangtools.yang.data.api.CompositeNode;
import org.opendaylight.yangtools.yang.data.api.Node;
import org.opendaylight.yangtools.yang.data.api.SimpleNode;
+import org.opendaylight.yangtools.yang.data.impl.ImmutableCompositeNode;
+import org.opendaylight.yangtools.yang.data.impl.SimpleNodeTOImpl;
import org.opendaylight.yangtools.yang.data.impl.codec.TypeDefinitionAwareCodec;
-import org.opendaylight.yangtools.yang.model.api.*;
+import org.opendaylight.yangtools.yang.data.impl.util.CompositeNodeBuilder;
+import org.opendaylight.yangtools.yang.model.api.ChoiceCaseNode;
+import org.opendaylight.yangtools.yang.model.api.ChoiceNode;
+import org.opendaylight.yangtools.yang.model.api.ContainerSchemaNode;
+import org.opendaylight.yangtools.yang.model.api.DataNodeContainer;
+import org.opendaylight.yangtools.yang.model.api.DataSchemaNode;
+import org.opendaylight.yangtools.yang.model.api.LeafListSchemaNode;
+import org.opendaylight.yangtools.yang.model.api.LeafSchemaNode;
+import org.opendaylight.yangtools.yang.model.api.ListSchemaNode;
+import org.opendaylight.yangtools.yang.model.api.SchemaNode;
+import org.opendaylight.yangtools.yang.model.api.TypeDefinition;
import org.opendaylight.yangtools.yang.model.api.type.IdentityrefTypeDefinition;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
+import org.w3c.dom.NodeList;
+import com.google.common.base.Function;
+import com.google.common.base.Objects;
+import com.google.common.base.Optional;
import com.google.common.base.Preconditions;
+import com.google.common.base.Strings;
+import com.google.common.collect.ImmutableList;
public class XmlDocumentUtils {
private static Element createXmlRootElement(Document doc, Node<?> data, SchemaNode schema,
XmlCodecProvider codecProvider) throws UnsupportedDataTypeException {
- QName dataType = data.getNodeType();
- Element itemEl = doc.createElementNS(dataType.getNamespace().toString(), dataType.getLocalName());
+ Element itemEl = createElementFor(doc, data);
if (data instanceof SimpleNode<?>) {
if (schema instanceof LeafListSchemaNode) {
writeValueByType(itemEl, (SimpleNode<?>) data, ((LeafListSchemaNode) schema).getType(),
return itemEl;
}
+ private static Element createElementFor(Document doc, Node<?> data) {
+ QName dataType = data.getNodeType();
+ Element ret;
+ if (dataType.getNamespace() != null) {
+ ret = doc.createElementNS(dataType.getNamespace().toString(), dataType.getLocalName());
+ } else {
+ ret = doc.createElementNS(null, dataType.getLocalName());
+ }
+ if (data instanceof AttributesContainer && ((AttributesContainer) data).getAttributes() != null) {
+ for (Entry<QName, String> attribute : ((AttributesContainer) data).getAttributes().entrySet()) {
+ ret.setAttributeNS(attribute.getKey().getNamespace().toString(), attribute.getKey().getLocalName(),
+ attribute.getValue());
+ }
+
+ }
+ return ret;
+ }
+
public static void writeValueByType(Element element, SimpleNode<?> node, TypeDefinition<?> type,
DataSchemaNode schema, XmlCodecProvider codecProvider) {
element.setAttribute("xmlns:" + prefix, value.getNamespace().toString());
element.setTextContent(prefix + ":" + value.getLocalName());
} else {
- logger.debug("Value of {}:{} is not instance of QName but is {}",
- baseType.getQName().getNamespace(), //
+ Object value = node.getValue();
+ logger.debug("Value of {}:{} is not instance of QName but is {}", baseType.getQName().getNamespace(), //
baseType.getQName().getLocalName(), //
- node.getValue().getClass());
- element.setTextContent(String.valueOf(node.getValue()));
+ node != null ? value.getClass() : "null");
+ if (value != null) {
+ element.setTextContent(String.valueOf(value));
+ }
}
} else {
if (node.getValue() != null) {
- try {
- String value = codecProvider.codecFor(baseType).serialize(node.getValue());
- element.setTextContent(value);
- } catch (ClassCastException e) {
+ final TypeDefinitionAwareCodec<Object, ?> codec = codecProvider.codecFor(baseType);
+ if (codec != null) {
+ try {
+ final String text = codec.serialize(node.getValue());
+ element.setTextContent(text);
+ } catch (ClassCastException e) {
+ logger.error("Provided node did not have type required by mapping. Using stream instead.", e);
+ element.setTextContent(String.valueOf(node.getValue()));
+ }
+ } else {
+ logger.error("Failed to find codec for {}, falling back to using stream", baseType);
element.setTextContent(String.valueOf(node.getValue()));
- logger.error("Provided node did not have type required by mapping. Using stream instead. {}",e);
}
}
}
return null;
}
+ public static Node<?> toDomNode(Element xmlElement, Optional<DataSchemaNode> schema,
+ Optional<XmlCodecProvider> codecProvider) {
+ if (schema.isPresent()) {
+ return toNodeWithSchema(xmlElement, schema.get(), codecProvider.or(DEFAULT_XML_VALUE_CODEC_PROVIDER));
+ }
+ return toDomNode(xmlElement);
+ }
+
+ public static CompositeNode fromElement(Element xmlElement) {
+ CompositeNodeBuilder<ImmutableCompositeNode> node = ImmutableCompositeNode.builder();
+ node.setQName(qNameFromElement(xmlElement));
+
+ return node.toInstance();
+ }
+
+ private static QName qNameFromElement(Element xmlElement) {
+ String namespace = xmlElement.getNamespaceURI();
+ String localName = xmlElement.getLocalName();
+ return QName.create(namespace != null ? URI.create(namespace) : null, null, localName);
+ }
+
+ private static Node<?> toNodeWithSchema(Element xmlElement, DataSchemaNode schema, XmlCodecProvider codecProvider) {
+ checkQName(xmlElement, schema.getQName());
+ if (schema instanceof DataNodeContainer) {
+ return toCompositeNodeWithSchema(xmlElement, schema.getQName(), (DataNodeContainer) schema, codecProvider);
+ } else if (schema instanceof LeafSchemaNode) {
+ return toSimpleNodeWithType(xmlElement, (LeafSchemaNode) schema, codecProvider);
+ } else if (schema instanceof LeafListSchemaNode) {
+ return toSimpleNodeWithType(xmlElement, (LeafListSchemaNode) schema, codecProvider);
+
+ }
+ return null;
+ }
+
+ private static Node<?> toSimpleNodeWithType(Element xmlElement, LeafSchemaNode schema,
+ XmlCodecProvider codecProvider) {
+ TypeDefinitionAwareCodec<Object, ? extends TypeDefinition<?>> codec = codecProvider.codecFor(schema.getType());
+ String text = xmlElement.getTextContent();
+ Object value;
+ if (codec != null) {
+ value = codec.deserialize(text);
+
+ } else {
+ value = xmlElement.getTextContent();
+ }
+ return new SimpleNodeTOImpl<Object>(schema.getQName(), null, value);
+ }
+
+ private static Node<?> toSimpleNodeWithType(Element xmlElement, LeafListSchemaNode schema,
+ XmlCodecProvider codecProvider) {
+ TypeDefinitionAwareCodec<Object, ? extends TypeDefinition<?>> codec = codecProvider.codecFor(schema.getType());
+ String text = xmlElement.getTextContent();
+ Object value;
+ if (codec != null) {
+ value = codec.deserialize(text);
+
+ } else {
+ value = xmlElement.getTextContent();
+ }
+ return new SimpleNodeTOImpl<Object>(schema.getQName(), null, value);
+ }
+
+ private static Node<?> toCompositeNodeWithSchema(Element xmlElement, QName qName, DataNodeContainer schema,
+ XmlCodecProvider codecProvider) {
+ List<Node<?>> values = toDomNodes(xmlElement, Optional.fromNullable(schema.getChildNodes()));
+ return ImmutableCompositeNode.create(qName, values);
+ }
+
+ private static void checkQName(Element xmlElement, QName qName) {
+ checkState(Objects.equal(xmlElement.getNamespaceURI(), qName.getNamespace().toString()));
+ checkState(qName.getLocalName().equals(xmlElement.getLocalName()));
+ }
+
+ private static final Optional<DataSchemaNode> findFirstSchema(QName qname, Set<DataSchemaNode> dataSchemaNode) {
+ if (dataSchemaNode != null && !dataSchemaNode.isEmpty() && qname != null) {
+ for (DataSchemaNode dsn : dataSchemaNode) {
+ if (qname.isEqualWithoutRevision(dsn.getQName())) {
+ return Optional.<DataSchemaNode> of(dsn);
+ } else if (dsn instanceof ChoiceNode) {
+ for (ChoiceCaseNode choiceCase : ((ChoiceNode) dsn).getCases()) {
+ Optional<DataSchemaNode> foundDsn = findFirstSchema(qname, choiceCase.getChildNodes());
+ if (foundDsn != null) {
+ return foundDsn;
+ }
+ }
+ }
+ }
+ }
+ return Optional.absent();
+ }
+
+ public static Node<?> toDomNode(Document doc) {
+ return toDomNode(doc.getDocumentElement());
+ }
+
+ private static Node<?> toDomNode(Element element) {
+ QName qname = qNameFromElement(element);
+
+ ImmutableList.Builder<Node<?>> values = ImmutableList.<Node<?>> builder();
+ NodeList nodes = element.getChildNodes();
+ boolean isSimpleObject = true;
+ String value = null;
+ for (int i = 0; i < nodes.getLength(); i++) {
+ org.w3c.dom.Node child = nodes.item(i);
+ if (child instanceof Element) {
+ isSimpleObject = false;
+ values.add(toDomNode((Element) child));
+ }
+ if (isSimpleObject && child instanceof org.w3c.dom.Text) {
+ value = element.getTextContent();
+ if (!Strings.isNullOrEmpty(value)) {
+ isSimpleObject = true;
+ }
+ }
+ }
+ if (isSimpleObject) {
+ return new SimpleNodeTOImpl<>(qname, null, value);
+ }
+ return ImmutableCompositeNode.create(qname, values.build());
+ }
+
+ public static List<Node<?>> toDomNodes(final Element element, final Optional<Set<DataSchemaNode>> context) {
+ return forEachChild(element.getChildNodes(), new Function<Element, Optional<Node<?>>>() {
+
+ @Override
+ public Optional<Node<?>> apply(Element input) {
+ if (context.isPresent()) {
+ QName partialQName = qNameFromElement(input);
+ Optional<DataSchemaNode> schemaNode = findFirstSchema(partialQName, context.get());
+ if (schemaNode.isPresent()) {
+ return Optional.<Node<?>> fromNullable(//
+ toNodeWithSchema(input, schemaNode.get(), DEFAULT_XML_VALUE_CODEC_PROVIDER));
+ }
+ }
+ return Optional.<Node<?>> fromNullable(toDomNode(element));
+ }
+
+ });
+
+ }
+
+ private static final <T> List<T> forEachChild(NodeList nodes, Function<Element, Optional<T>> forBody) {
+ ImmutableList.Builder<T> ret = ImmutableList.<T> builder();
+ for (int i = 0; i < nodes.getLength(); i++) {
+ org.w3c.dom.Node child = nodes.item(i);
+ if (child instanceof Element) {
+ Optional<T> result = forBody.apply((Element) child);
+ if (result.isPresent()) {
+ ret.add(result.get());
+ }
+ }
+ }
+ return ret.build();
+ }
+
public static final XmlCodecProvider defaultValueCodecProvider() {
return DEFAULT_XML_VALUE_CODEC_PROVIDER;
}
Code Review / yangtools.git / blobdiff