/*******************************************************************************
* Copyright (c) 1998, 2015 Oracle and/or its affiliates. All rights reserved.
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v1.0 and Eclipse Distribution License v. 1.0
* which accompanies this distribution.
* The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v10.html
* and the Eclipse Distribution License is available at
* http://www.eclipse.org/org/documents/edl-v10.php.
*
* Contributors:
* Oracle - initial API and implementation from Oracle TopLink
******************************************************************************/
package org.eclipse.persistence.internal.oxm;
import java.lang.reflect.Modifier;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import javax.xml.namespace.QName;
import org.eclipse.persistence.exceptions.DescriptorException;
import org.eclipse.persistence.exceptions.XMLMarshalException;
import org.eclipse.persistence.internal.core.helper.CoreField;
import org.eclipse.persistence.internal.core.sessions.CoreAbstractSession;
import org.eclipse.persistence.internal.oxm.mappings.Descriptor;
import org.eclipse.persistence.internal.oxm.mappings.Field;
import org.eclipse.persistence.internal.oxm.mappings.Mapping;
import org.eclipse.persistence.internal.oxm.mappings.UnmarshalKeepAsElementPolicy;
import org.eclipse.persistence.internal.oxm.mappings.XMLConverterMapping;
import org.eclipse.persistence.internal.oxm.record.MarshalRecord;
import org.eclipse.persistence.internal.oxm.record.UnmarshalRecord;
import org.eclipse.persistence.internal.oxm.record.XMLReader;
import org.eclipse.persistence.internal.oxm.record.XMLRecord;
import org.eclipse.persistence.internal.oxm.record.deferred.DescriptorNotFoundContentHandler;
import org.eclipse.persistence.core.queries.CoreAttributeGroup;
import org.eclipse.persistence.core.queries.CoreAttributeItem;
import org.xml.sax.Attributes;
import org.xml.sax.SAXException;
public abstract class XMLRelationshipMappingNodeValue extends MappingNodeValue {
// Protected to public
public void processChild(XPathFragment xPathFragment, UnmarshalRecord unmarshalRecord, Attributes atts, Descriptor xmlDescriptor, Mapping mapping) throws SAXException {
if(xmlDescriptor == null){
//Use the DescriptorNotFoundContentHandler to "look ahead" and determine if this is a simple or complex element
//if it is complex the exception should be thrown
DescriptorNotFoundContentHandler handler = new DescriptorNotFoundContentHandler(unmarshalRecord, mapping);
String qnameString = xPathFragment.getLocalName();
if(xPathFragment.getPrefix() != null) {
qnameString = xPathFragment.getPrefix() +Constants.COLON + qnameString;
}
handler.startElement(xPathFragment.getNamespaceURI(), xPathFragment.getLocalName(), qnameString, atts);
XMLReader xmlReader = unmarshalRecord.getXMLReader();
xmlReader.setContentHandler(handler);
xmlReader.setLexicalHandler(handler);
return;
}
if (xmlDescriptor.hasInheritance()) {
unmarshalRecord.setAttributes(atts);
CoreAbstractSession session = unmarshalRecord.getSession();
Class classValue = ((ObjectBuilder)xmlDescriptor.getObjectBuilder()).classFromRow(unmarshalRecord, session);
if (classValue == null) {
// no xsi:type attribute - look for type indicator on the default root element
XPathQName leafElementType = unmarshalRecord.getLeafElementType();
// if we have a user-set type, try to get the class from the inheritance policy
if (leafElementType != null) {
Object indicator = xmlDescriptor.getInheritancePolicy().getClassIndicatorMapping().get(leafElementType);
if(indicator != null) {
classValue = (Class)indicator;
}
}
}
if (classValue != null) {
xmlDescriptor = (Descriptor)session.getDescriptor(classValue);
} else {
// since there is no xsi:type attribute, use the reference descriptor set
// on the mapping - make sure it is non-abstract
if (Modifier.isAbstract(xmlDescriptor.getJavaClass().getModifiers())) {
// need to throw an exception here
throw DescriptorException.missingClassIndicatorField(unmarshalRecord, (org.eclipse.persistence.oxm.XMLDescriptor)xmlDescriptor.getInheritancePolicy().getDescriptor());
}
}
}
ObjectBuilder targetObjectBuilder = (ObjectBuilder)xmlDescriptor.getObjectBuilder();
CoreAttributeGroup group = unmarshalRecord.getUnmarshalAttributeGroup();
CoreAttributeGroup nestedGroup = null;
if(group == XMLRecord.DEFAULT_ATTRIBUTE_GROUP) {
nestedGroup = group;
}
if(nestedGroup == null) {
CoreAttributeItem item = group.getItem(getMapping().getAttributeName());
nestedGroup = item.getGroup(xmlDescriptor.getJavaClass());
if(nestedGroup == null) {
if(item.getGroup() == null) {
nestedGroup = XMLRecord.DEFAULT_ATTRIBUTE_GROUP;
} else {
nestedGroup = item.getGroup();
}
}
}
UnmarshalRecord childRecord = unmarshalRecord.getChildUnmarshalRecord(targetObjectBuilder);
childRecord.setAttributes(atts);
childRecord.startDocument();
childRecord.initializeRecord((Mapping) null);
childRecord.setUnmarshalAttributeGroup(nestedGroup);
childRecord.startElement(xPathFragment.getNamespaceURI(), xPathFragment.getLocalName(), xPathFragment.getShortName(), atts);
XMLReader xmlReader = unmarshalRecord.getXMLReader();
xmlReader.setContentHandler(childRecord);
xmlReader.setLexicalHandler(childRecord);
}
protected Descriptor findReferenceDescriptor(XPathFragment xPathFragment, UnmarshalRecord unmarshalRecord, Attributes atts, Mapping mapping, UnmarshalKeepAsElementPolicy policy) {
Descriptor returnDescriptor = null;
//try xsi:type
if(atts != null){
Context xmlContext = unmarshalRecord.getUnmarshaller().getContext();
String schemaType = null;
if(unmarshalRecord.isNamespaceAware()){
schemaType = atts.getValue(javax.xml.XMLConstants.W3C_XML_SCHEMA_INSTANCE_NS_URI, Constants.SCHEMA_TYPE_ATTRIBUTE);
}else{
schemaType = atts.getValue(Constants.EMPTY_STRING, Constants.SCHEMA_TYPE_ATTRIBUTE);
}
if(schemaType != null){
schemaType = schemaType.trim();
if(schemaType.length() > 0) {
XPathFragment frag = new XPathFragment(schemaType, unmarshalRecord.getNamespaceSeparator(), unmarshalRecord.isNamespaceAware());
QName qname = null;
if (frag.hasNamespace()) {
String prefix = frag.getPrefix();
String url = unmarshalRecord.resolveNamespacePrefix(prefix);
frag.setNamespaceURI(url);
qname = new QName(url, frag.getLocalName());
unmarshalRecord.setTypeQName(qname);
} else {
String url = unmarshalRecord.resolveNamespacePrefix(Constants.EMPTY_STRING);
if(null != url) {
frag.setNamespaceURI(url);
qname = new QName(url, frag.getLocalName());
unmarshalRecord.setTypeQName(qname);
}
if(!unmarshalRecord.isNamespaceAware() || !unmarshalRecord.getUnmarshaller().getJsonTypeConfiguration().useXsdTypesWithPrefix()){
qname = new QName(javax.xml.XMLConstants.W3C_XML_SCHEMA_NS_URI ,frag.getLocalName());
unmarshalRecord.setTypeQName(qname);
}
}
returnDescriptor = xmlContext.getDescriptorByGlobalType(frag);
if(returnDescriptor == null){
if(policy == null || (!policy.isKeepUnknownAsElement() && !policy.isKeepAllAsElement())){
Class theClass = unmarshalRecord.getConversionManager().javaType(qname);
if(theClass == null){
throw XMLMarshalException.unknownXsiTypeValue(schemaType, mapping);
}
}
}
}
}
}
return returnDescriptor;
}
protected void addTypeAttribute(Descriptor descriptor, MarshalRecord marshalRecord, String schemaContext) {
String typeValue = schemaContext.substring(1);
String xsiPrefix = null;
if (descriptor.getNamespaceResolver() != null) {
xsiPrefix = descriptor.getNamespaceResolver().resolveNamespaceURI(javax.xml.XMLConstants.W3C_XML_SCHEMA_INSTANCE_NS_URI);
} else {
xsiPrefix = Constants.SCHEMA_INSTANCE_PREFIX;
marshalRecord.namespaceDeclaration(xsiPrefix, javax.xml.XMLConstants.W3C_XML_SCHEMA_INSTANCE_NS_URI);
}
if (xsiPrefix == null) {
xsiPrefix = descriptor.getNamespaceResolver().generatePrefix(Constants.SCHEMA_INSTANCE_PREFIX);
marshalRecord.namespaceDeclaration(xsiPrefix, javax.xml.XMLConstants.W3C_XML_SCHEMA_INSTANCE_NS_URI);
}
marshalRecord.attribute(javax.xml.XMLConstants.W3C_XML_SCHEMA_INSTANCE_NS_URI, Constants.SCHEMA_TYPE_ATTRIBUTE, xsiPrefix + Constants.COLON + Constants.SCHEMA_TYPE_ATTRIBUTE, typeValue);
}
protected void writeExtraNamespaces(List extraNamespaces, XMLRecord xmlRecord, CoreAbstractSession session) {
if (extraNamespaces == null) {
return;
}
for (int i = 0, extraNamespacesSize=extraNamespaces.size(); i < extraNamespacesSize; i++) {
Namespace next = (Namespace)extraNamespaces.get(i);
String prefix = next.getPrefix();
if(((MarshalRecord)xmlRecord).hasCustomNamespaceMapper()) {
prefix = ((MarshalRecord)xmlRecord).getNamespaceResolver().resolveNamespaceURI(next.getNamespaceURI());
}
((MarshalRecord)xmlRecord).namespaceDeclaration(prefix, next.getNamespaceURI());
}
}
protected void setupHandlerForKeepAsElementPolicy(UnmarshalRecord unmarshalRecord, XPathFragment xPathFragment, Attributes atts) {
SAXFragmentBuilder builder = unmarshalRecord.getFragmentBuilder();
builder.setOwningRecord(unmarshalRecord);
builder.setMixedContent(xPathNode.getUnmarshalNodeValue().isMixedContentNodeValue());
try {
String namespaceURI = Constants.EMPTY_STRING;
if (xPathFragment.getNamespaceURI() != null) {
namespaceURI = xPathFragment.getNamespaceURI();
}
String qName = xPathFragment.getLocalName();
if (xPathFragment.getPrefix() != null) {
qName = xPathFragment.getPrefix() + unmarshalRecord.getNamespaceSeparator() + qName;
}
if(!(unmarshalRecord.getPrefixesForFragment().isEmpty())) {
for(Entry<String, String> next:((Map<String, String>) unmarshalRecord.getPrefixesForFragment()).entrySet()) {
builder.startPrefixMapping(next.getKey(), next.getValue());
}
}
builder.startElement(namespaceURI, xPathFragment.getLocalName(), qName, atts);
XMLReader xmlReader = unmarshalRecord.getXMLReader();
xmlReader.setContentHandler(builder);
xmlReader.setLexicalHandler(null);
} catch (SAXException ex) {
}
}
protected void setOrAddAttributeValueForKeepAsElement(SAXFragmentBuilder builder, Mapping mapping, XMLConverterMapping converter, UnmarshalRecord unmarshalRecord, boolean isCollection, Object collection) {
Object node = builder.getNodes().remove(builder.getNodes().size() -1);
if (converter != null) {
node = converter.convertDataValueToObjectValue(node, unmarshalRecord.getSession(), unmarshalRecord.getUnmarshaller());
}
if (isCollection) {
if(collection != null){
unmarshalRecord.addAttributeValue((ContainerValue) this, node, collection);
}else{
unmarshalRecord.addAttributeValue((ContainerValue) this, node);
}
} else {
unmarshalRecord.setAttributeValue(node, mapping);
}
}
protected void endElementProcessText(UnmarshalRecord unmarshalRecord, XMLConverterMapping converter, XPathFragment xPathFragment, Object collection) {
Object value = unmarshalRecord.getCharacters().toString();
unmarshalRecord.resetStringBuffer();
if(!unmarshalRecord.isNil()) {
QName qname = unmarshalRecord.getTypeQName();
if (qname == null) {
if(Constants.EMPTY_STRING.equals(value)) {
value = null;
}
} else {
ConversionManager conversionManager = unmarshalRecord.getConversionManager();
if(qname.equals(Constants.QNAME_QNAME)) {
value = conversionManager.buildQNameFromString((String)value, unmarshalRecord);
} else {
Class theClass = getClassForQName(qname, conversionManager);
if (theClass != null) {
value = conversionManager.convertObject(value, theClass, qname);
}
}
}
value = converter.convertDataValueToObjectValue(value, unmarshalRecord.getSession(), unmarshalRecord.getUnmarshaller());
setOrAddAttributeValue(unmarshalRecord, value, xPathFragment, collection);
}
}
protected Class getClassForQName(QName qname, ConversionManager conversionManager){
CoreField field = getMapping().getField();
if(field != null){
return ((Field)field).getJavaClass(qname, conversionManager);
}
return conversionManager.javaType(qname);
}
protected abstract void setOrAddAttributeValue(UnmarshalRecord unmarshalRecord, Object value, XPathFragment xPathFragment, Object collection);
}