import com.google.common.annotations.Beta;
import com.google.common.base.Preconditions;
+import java.net.URI;
+import java.util.Map.Entry;
+import javax.annotation.Nonnull;
+import javax.xml.stream.XMLStreamException;
+import javax.xml.stream.XMLStreamWriter;
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.api.YangInstanceIdentifier;
import org.opendaylight.yangtools.yang.data.impl.codec.TypeDefinitionAwareCodec;
import org.opendaylight.yangtools.yang.data.impl.codec.xml.XmlCodecProvider;
-import org.opendaylight.yangtools.yang.data.impl.schema.SchemaUtils;
-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.SchemaNode;
import org.opendaylight.yangtools.yang.model.api.TypeDefinition;
import org.opendaylight.yangtools.yang.model.api.type.IdentityrefTypeDefinition;
import org.opendaylight.yangtools.yang.model.api.type.InstanceIdentifierTypeDefinition;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
-import javax.annotation.Nonnull;
-import javax.annotation.Nullable;
-import javax.xml.stream.XMLStreamException;
-import javax.xml.stream.XMLStreamWriter;
-import java.net.URI;
-import java.util.Map.Entry;
-
/**
* Utility class for bridging JAXP Stream and YANG Data APIs. Note that the definition of this class
* by no means final and subject to change as more functionality is centralized here.
return new XmlStreamUtils(codecProvider);
}
- /**
- * Check if a particular data element can be emitted as an empty element, bypassing value encoding. This
- * functionality is optional, as valid XML stream is produced even if start/end element is produced unconditionally.
- *
- * @param data Data node
- * @return True if the data node will result in empty element body.
- */
- public static boolean isEmptyElement(final Node<?> data) {
- if (data == null) {
- return true;
- }
-
- if (data instanceof CompositeNode) {
- return ((CompositeNode) data).getValue().isEmpty();
- }
- if (data instanceof SimpleNode) {
- return data.getValue() == null;
- }
-
- // Safe default
- return false;
- }
-
/**
* Write an InstanceIdentifier into the output stream. Calling corresponding {@link javax.xml.stream.XMLStreamWriter#writeStartElement(String)}
* and {@link javax.xml.stream.XMLStreamWriter#writeEndElement()} is the responsibility of the caller.
final RandomPrefix prefixes = new RandomPrefix();
final String str = XmlUtils.encodeIdentifier(prefixes, id);
- for (Entry<URI, String> e: prefixes.getPrefixes()) {
+ for (final Entry<URI, String> e: prefixes.getPrefixes()) {
writer.writeNamespace(e.getValue(), e.getKey().toString());
}
if(LOG.isDebugEnabled()) {
writer.writeCharacters(str);
}
- /**
- * Write a full XML document corresponding to a CompositeNode into an XML stream writer.
- *
- * @param writer XML Stream writer
- * @param data data node
- * @param schema corresponding schema node, may be null
- * @throws javax.xml.stream.XMLStreamException if an encoding problem occurs
- */
- public void writeDocument(final @Nonnull XMLStreamWriter writer, final @Nonnull CompositeNode data, final @Nullable SchemaNode schema) throws XMLStreamException {
- // final Boolean repairing = (Boolean) writer.getProperty(XMLOutputFactory.IS_REPAIRING_NAMESPACES);
- // Preconditions.checkArgument(repairing == true, "XML Stream Writer has to be repairing namespaces");
-
- writer.writeStartDocument();
- writeElement(writer, data, schema);
- writer.writeEndDocument();
- writer.flush();
- }
-
-
- /**
- * Write an element into a XML stream writer. This includes the element start/end tags and
- * the value of the element.
- *
- * @param writer XML Stream writer
- * @param data data node
- * @param schema Schema node
- * @throws javax.xml.stream.XMLStreamException if an encoding problem occurs
- */
- public void writeElement(final XMLStreamWriter writer, final @Nonnull Node<?> data, final SchemaNode schema) throws XMLStreamException {
- final QName qname = data.getNodeType();
- final String pfx = qname.getPrefix() != null ? qname.getPrefix() : "";
- final String ns = qname.getNamespace() != null ? qname.getNamespace().toString() : "";
-
- if (isEmptyElement(data)) {
- writer.writeEmptyElement(pfx, qname.getLocalName(), ns);
- return;
- }
-
- writer.writeStartElement(pfx, qname.getLocalName(), ns);
- if (data instanceof AttributesContainer && ((AttributesContainer) data).getAttributes() != null) {
- for (Entry<QName, String> attribute : ((AttributesContainer) data).getAttributes().entrySet()) {
- writer.writeAttribute(attribute.getKey().getNamespace().toString(), attribute.getKey().getLocalName(), attribute.getValue());
- }
- }
-
- if (data instanceof SimpleNode<?>) {
- LOG.debug("writeElement : node is of type SimpleNode");
- // Simple node
- if (schema instanceof LeafListSchemaNode) {
- writeValue(writer, ((LeafListSchemaNode) schema).getType(), data.getValue());
- } else if (schema instanceof LeafSchemaNode) {
- writeValue(writer, ((LeafSchemaNode) schema).getType(), data.getValue());
- } else {
- Object value = data.getValue();
- if (value != null) {
- writer.writeCharacters(String.valueOf(value));
- }
- }
- } else {
- LOG.debug("writeElement : node is of type CompositeNode");
- // CompositeNode
- for (Node<?> child : ((CompositeNode) data).getValue()) {
- DataSchemaNode childSchema = null;
- if (schema instanceof DataNodeContainer) {
- childSchema = SchemaUtils.findFirstSchema(child.getNodeType(), ((DataNodeContainer) schema).getChildNodes()).orNull();
- if (childSchema == null && LOG.isDebugEnabled()) {
- LOG.debug("Probably the data node \"{}\" does not conform to schema", child == null ? "" : child.getNodeType().getLocalName());
- }
- }
-
- writeElement(writer, child, childSchema);
- }
- }
-
- writer.writeEndElement();
- }
-
/**
* Write a value into a XML stream writer. This method assumes the start and end of element is
* emitted by the caller.
if (codec != null) {
try {
text = codec.serialize(value);
- } catch (ClassCastException e) {
+ } catch (final ClassCastException e) {
LOG.error("Provided node value {} did not have type {} required by mapping. Using stream instead.", value, baseType, e);
text = String.valueOf(value);
}
private static void write(final @Nonnull XMLStreamWriter writer, final @Nonnull IdentityrefTypeDefinition type, final @Nonnull Object value) throws XMLStreamException {
if (value instanceof QName) {
final QName qname = (QName) value;
- final String prefix;
- if (qname.getPrefix() != null && !qname.getPrefix().isEmpty()) {
- prefix = qname.getPrefix();
- } else {
- prefix = "x";
- }
- writer.writeNamespace(prefix, qname.getNamespace().toString());
- writer.writeCharacters(prefix + ':' + qname.getLocalName());
+ writer.writeNamespace("x", qname.getNamespace().toString());
+ writer.writeCharacters("x:" + qname.getLocalName());
} else {
if(LOG.isDebugEnabled()) {
LOG.debug("Value of {}:{} is not a QName but {}", type.getQName().getNamespace(), type.getQName().getLocalName(), value.getClass());
Code Review / controller.git / blobdiff