/*******************************************************************************
* Copyright (c) 1998, 2012 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.oxm.mappings;
import java.security.AccessController;
import java.security.PrivilegedActionException;
import java.util.HashMap;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import java.util.Iterator;
import java.util.Vector;
import java.util.ArrayList;
import java.util.Map.Entry;
import javax.xml.namespace.QName;
import org.eclipse.persistence.exceptions.DatabaseException;
import org.eclipse.persistence.exceptions.DescriptorException;
import org.eclipse.persistence.exceptions.ValidationException;
import org.eclipse.persistence.internal.descriptors.DescriptorIterator;
import org.eclipse.persistence.internal.descriptors.InstanceVariableAttributeAccessor;
import org.eclipse.persistence.internal.helper.ClassConstants;
import org.eclipse.persistence.internal.helper.DatabaseField;
import org.eclipse.persistence.internal.identitymaps.CacheKey;
import org.eclipse.persistence.internal.oxm.NodeValue;
import org.eclipse.persistence.internal.oxm.XMLContainerMapping;
import org.eclipse.persistence.internal.oxm.XMLConversionManager;
import org.eclipse.persistence.internal.oxm.XPathFragment;
import org.eclipse.persistence.internal.queries.CollectionContainerPolicy;
import org.eclipse.persistence.internal.queries.JoinedAttributeManager;
import org.eclipse.persistence.internal.security.PrivilegedAccessHelper;
import org.eclipse.persistence.internal.security.PrivilegedClassForName;
import org.eclipse.persistence.internal.sessions.AbstractRecord;
import org.eclipse.persistence.internal.sessions.AbstractSession;
import org.eclipse.persistence.internal.sessions.ChangeRecord;
import org.eclipse.persistence.internal.sessions.MergeManager;
import org.eclipse.persistence.internal.sessions.ObjectChangeSet;
import org.eclipse.persistence.internal.sessions.UnitOfWorkImpl;
import org.eclipse.persistence.mappings.AttributeAccessor;
import org.eclipse.persistence.mappings.DatabaseMapping;
import org.eclipse.persistence.oxm.XMLConstants;
import org.eclipse.persistence.oxm.XMLField;
import org.eclipse.persistence.oxm.XMLRoot;
import org.eclipse.persistence.mappings.converters.Converter;
import org.eclipse.persistence.mappings.foundation.AbstractCompositeCollectionMapping;
import org.eclipse.persistence.mappings.foundation.AbstractCompositeDirectCollectionMapping;
import org.eclipse.persistence.internal.oxm.XMLChoiceFieldToClassAssociation;
import org.eclipse.persistence.oxm.mappings.converters.XMLConverter;
import org.eclipse.persistence.oxm.mappings.nullpolicy.AbstractNullPolicy;
import org.eclipse.persistence.oxm.record.DOMRecord;
import org.eclipse.persistence.oxm.record.XMLEntry;
import org.eclipse.persistence.oxm.record.XMLRecord;
import org.eclipse.persistence.queries.ObjectBuildingQuery;
import org.eclipse.persistence.queries.ObjectLevelReadQuery;
import org.eclipse.persistence.sessions.remote.RemoteSession;
import org.eclipse.persistence.internal.queries.ContainerPolicy;
/**
* PUBLIC:
* <p><b>Purpose:</b>Provide a mapping that can map a single attribute to a number of
* different elements in an XML Document. This will be used to map to Choices or Substitution
* Groups in an XML Schema
* <p><b>Responsibilities:</b><ul>
* <li>Allow the user to specify XPath -> Type mappings</li>
* <li>Handle reading and writing of XML Documents containing a collection of choice or substitution
* group elements</li>
* </ul>
* <p>The XMLChoiceCollectionMapping is the collection version of the XMLChoiceMapping. This mapping
* allows the user to specify a number of different xpaths, and types associated with those xpaths.
* When any of these elements are encountered in the XML Document, they are read in as the correct
* type and added to the collection.
* <p><b>Setting up XPath mappings:</b>Unlike other OXM Mappings, instead of setting a single xpath,
* the addChoiceElement method is used to specify an xpath and the type associated with this xpath.
* <br>
* xmlChoiceCollectionMapping.addChoiceElement("mystring/text()", String.class);
* <br>
* xmlChoiceCollectionMapping.addChoiceElement("myaddress", Address.class);
*
*/
public class XMLChoiceCollectionMapping extends DatabaseMapping implements XMLMapping, XMLContainerMapping {
private Map<XMLField, Class> fieldToClassMappings;
private Map<Class, XMLField> classToFieldMappings;
private Map<Class, List<XMLField>> classToSourceFieldsMappings;
private Map<String, List<XMLField>> classNameToSourceFieldsMappings;
private Map<XMLField, XMLMapping> choiceElementMappings;
private Map<XMLField, String> fieldToClassNameMappings;
private Map<String, XMLField> classNameToFieldMappings;
private Map<XMLField, Converter> fieldsToConverters;
private ContainerPolicy containerPolicy;
private boolean isDefaultEmptyContainer = XMLContainerMapping.EMPTY_CONTAINER_DEFAULT;
private boolean isMixedContent;
private AbstractNullPolicy wrapperNullPolicy;
private boolean isWriteOnly;
private static final AttributeAccessor temporaryAccessor = new InstanceVariableAttributeAccessor();;
private boolean reuseContainer;
private Converter converter;
private XMLCompositeDirectCollectionMapping mixedContentMapping;
private static final String DATA_HANDLER = "javax.activation.DataHandler";
private static final String MIME_MULTIPART = "javax.mail.MimeMultipart";
private static final String IMAGE = "java.awt.Image";
public XMLChoiceCollectionMapping() {
fieldToClassMappings = new HashMap<XMLField, Class>();
fieldToClassNameMappings = new HashMap<XMLField, String>();
classToFieldMappings = new HashMap<Class, XMLField>();
classNameToFieldMappings = new HashMap<String, XMLField>();
choiceElementMappings = new LinkedHashMap<XMLField, XMLMapping>();
fieldsToConverters = new HashMap<XMLField, Converter>();
this.containerPolicy = ContainerPolicy.buildDefaultPolicy();
}
/**
* Return the converter on the mapping.
* A converter can be used to convert between the object's value and database value of the attribute.
*/
public Converter getConverter() {
return converter;
}
/**
* Set the converter on the mapping.
* A converter can be used to convert between the object's value and database value of the attribute.
*/
public void setConverter(Converter converter) {
this.converter = converter;
}
/**
* INTERNAL:
* Clone the attribute from the clone and assign it to the backup.
*/
public void buildBackupClone(Object clone, Object backup, UnitOfWorkImpl unitOfWork) {
throw DescriptorException.invalidMappingOperation(this, "buildBackupClone");
}
/**
* INTERNAL:
* Clone the attribute from the original and assign it to the clone.
*/
@Override
public void buildClone(Object original, CacheKey cacheKey, Object clone, AbstractSession cloningSession) {
throw DescriptorException.invalidMappingOperation(this, "buildClone");
}
public void buildCloneFromRow(AbstractRecord databaseRow, JoinedAttributeManager joinManager, Object clone, CacheKey sharedCacheKey, ObjectBuildingQuery sourceQuery, UnitOfWorkImpl unitOfWork, AbstractSession executionSession) {
throw DescriptorException.invalidMappingOperation(this, "buildCloneFromRow");
}
/**
* INTERNAL:
* Cascade perform delete through mappings that require the cascade
*/
public void cascadePerformRemoveIfRequired(Object object, UnitOfWorkImpl uow, Map visitedObjects) {
//objects referenced by this mapping are not registered as they have
// no identity, this is a no-op.
}
/**
* INTERNAL:
* Cascade registerNew for Create through mappings that require the cascade
*/
public void cascadeRegisterNewIfRequired(Object object, UnitOfWorkImpl uow, Map visitedObjects) {
//Our current XML support does not make use of the UNitOfWork.
}
/**
* INTERNAL:
* This method was created in VisualAge.
* @return prototype.changeset.ChangeRecord
*/
public ChangeRecord compareForChange(Object clone, Object backup, ObjectChangeSet owner, AbstractSession session) {
throw DescriptorException.invalidMappingOperation(this, "compareForChange");
}
/**
* INTERNAL:
* Compare the attributes belonging to this mapping for the objects.
*/
public boolean compareObjects(Object firstObject, Object secondObject, AbstractSession session) {
throw DescriptorException.invalidMappingOperation(this, "compareObjects");
}
/**
* INTERNAL:
* An object has been serialized from the server to the client.
* Replace the transient attributes of the remote value holders
* with client-side objects.
*/
public void fixObjectReferences(Object object, Map objectDescriptors, Map processedObjects, ObjectLevelReadQuery query, RemoteSession session) {
throw DescriptorException.invalidMappingOperation(this, "fixObjectReferences");
}
/**
* INTERNAL:
* Iterate on the appropriate attribute value.
*/
public void iterate(DescriptorIterator iterator) {
throw DescriptorException.invalidMappingOperation(this, "iterate");
}
/**
* INTERNAL:
* Merge changes from the source to the target object.
*/
@Override
public void mergeChangesIntoObject(Object target, ChangeRecord changeRecord, Object source, MergeManager mergeManager, AbstractSession targetSession) {
throw DescriptorException.invalidMappingOperation(this, "mergeChangesIntoObject");
}
/**
* INTERNAL:
* Merge changes from the source to the target object.
*/
@Override
public void mergeIntoObject(Object target, boolean isTargetUninitialized, Object source, MergeManager mergeManager, AbstractSession targetSession) {
throw DescriptorException.invalidMappingOperation(this, "mergeIntoObject");
}
public Object valueFromRow(AbstractRecord row, JoinedAttributeManager joinManager, ObjectBuildingQuery sourceQuery, CacheKey cacheKey, AbstractSession executionSession, boolean isTargetProtected, Boolean[] wasCacheUsed) throws DatabaseException {
List<XMLEntry> values = ((DOMRecord)row).getValuesIndicatingNoEntry(this.getFields());
Object container = getContainerPolicy().containerInstance(values.size());
for(XMLEntry next:values) {
XMLField valueField = next.getXMLField();
DatabaseMapping nextMapping = (DatabaseMapping)this.choiceElementMappings.get(valueField);
Converter converter = getConverter();
if(nextMapping.isAbstractCompositeCollectionMapping()) {
XMLCompositeCollectionMapping xmlMapping = (XMLCompositeCollectionMapping)nextMapping;
Object value = xmlMapping.buildObjectFromNestedRow((AbstractRecord)next.getValue(), joinManager, sourceQuery, executionSession, isTargetProtected);
if(converter != null) {
if (converter instanceof XMLConverter) {
value = ((XMLConverter) converter).convertDataValueToObjectValue(value, executionSession, ((XMLRecord) row).getUnmarshaller());
} else {
value = converter.convertDataValueToObjectValue(value, executionSession);
}
}
getContainerPolicy().addInto(value, container, executionSession);
} else if(nextMapping instanceof XMLCompositeDirectCollectionMapping){
XMLCompositeDirectCollectionMapping xmlMapping = (XMLCompositeDirectCollectionMapping)nextMapping;
Object value = next.getValue();
if(converter != null) {
if (converter instanceof XMLConverter) {
value = ((XMLConverter) converter).convertDataValueToObjectValue(value, executionSession, ((XMLRecord) row).getUnmarshaller());
} else {
value = converter.convertDataValueToObjectValue(value, executionSession);
}
}
getContainerPolicy().addInto(value, container, executionSession);
}
}
ArrayList<XMLMapping> processedMappings = new ArrayList<XMLMapping>();
for(XMLMapping mapping:choiceElementMappings.values()) {
if(((DatabaseMapping)mapping).isObjectReferenceMapping() && !(processedMappings.contains(mapping))) {
((DatabaseMapping)mapping).readFromRowIntoObject(row, joinManager, ((XMLRecord)row).getCurrentObject(), cacheKey, sourceQuery, executionSession, isTargetProtected);
processedMappings.add(mapping);
}
}
return container;
}
@Override
public void writeFromObjectIntoRow(Object object, AbstractRecord row, AbstractSession session, WriteType writeType) throws DescriptorException {
if(this.isReadOnly()) {
return;
}
Object attributeValue = getAttributeValueFromObject(object);
List<XMLEntry> nestedRows = new ArrayList<XMLEntry>();
XMLRecord record = (XMLRecord)row;
//First determine which Field is associated with each value:
if(null != attributeValue) {
ContainerPolicy cp = getContainerPolicy();
Object iterator = cp.iteratorFor(attributeValue);
if(null != iterator) {
while(cp.hasNext(iterator)) {
Object value = cp.next(iterator, session);
if (null != converter) {
if (converter instanceof XMLConverter) {
value = ((XMLConverter)converter).convertObjectValueToDataValue(value, session, record.getMarshaller());
} else {
value = converter.convertObjectValueToDataValue(value, session);
}
}
NodeValue associatedNodeValue = null;
XMLField associatedField = null;
Object fieldValue = value;
if(value instanceof XMLRoot) {
XMLRoot rootValue = (XMLRoot)value;
String localName = rootValue.getLocalName();
String namespaceUri = rootValue.getNamespaceURI();
fieldValue = rootValue.getObject();
associatedField = getFieldForName(localName, namespaceUri);
if(associatedField == null) {
associatedField = getClassToFieldMappings().get(fieldValue.getClass());
}
} else {
associatedField = getClassToFieldMappings().get(value.getClass());
}
if(associatedField == null) {
//this may be a reference mapping
List<XMLField> sourceFields = classToSourceFieldsMappings.get(value.getClass());
if(sourceFields != null && sourceFields.size() > 0) {
DatabaseMapping xmlMapping = (DatabaseMapping)this.choiceElementMappings.get(sourceFields.get(0));
for(XMLField next:sourceFields) {
fieldValue = ((XMLCollectionReferenceMapping)xmlMapping).buildFieldValue(value, next, session);
XMLEntry entry = new XMLEntry();
entry.setValue(fieldValue);
entry.setXMLField(next);
nestedRows.add(entry);
}
}
} else {
DatabaseMapping xmlMapping = (DatabaseMapping)this.choiceElementMappings.get(associatedField);
if(xmlMapping.isAbstractCompositeCollectionMapping()) {
fieldValue = ((XMLCompositeCollectionMapping)xmlMapping).buildCompositeRow(fieldValue, session, row, writeType);
}
XMLEntry entry = new XMLEntry();
entry.setValue(fieldValue);
entry.setXMLField(associatedField);
nestedRows.add(entry);
}
}
}
}
((DOMRecord)row).put(getFields(), nestedRows);
}
private XMLField getFieldForName(String localName, String namespaceUri) {
Iterator fields = getFields().iterator();
while(fields.hasNext()) {
XMLField nextField = (XMLField)fields.next();
XPathFragment fragment = nextField.getXPathFragment();
while(fragment != null && (!fragment.nameIsText())) {
if(fragment.getNextFragment() == null || fragment.getHasText()) {
if(fragment.getLocalName().equals(localName)) {
String fragUri = fragment.getNamespaceURI();
if((namespaceUri == null && fragUri == null) || (namespaceUri != null && fragUri != null && namespaceUri.equals(fragUri))) {
return nextField;
}
}
}
fragment = fragment.getNextFragment();
}
}
return null;
}
public void writeSingleValue(Object value, Object parent, XMLRecord row, AbstractSession session) {
}
public boolean isXMLMapping() {
return true;
}
public Vector<DatabaseField> getFields() {
if(fields == null || fields.size() == 0) {
fields = this.collectFields();
}
return this.fields;
}
protected Vector<DatabaseField> collectFields() {
return new Vector<DatabaseField>(fieldToClassMappings.keySet());
}
public void addChoiceElement(String xpath, Class elementType) {
XMLField field = new XMLField(xpath);
addChoiceElement(field, elementType);
}
public void addChoiceElement(String xpath, String elementTypeName) {
XMLField field = new XMLField(xpath);
addChoiceElement(field, elementTypeName);
}
public void addChoiceElement(XMLField xmlField, Class elementType) {
getFieldToClassMappings().put(xmlField, elementType);
if(!(this.fieldToClassNameMappings.containsKey(xmlField))) {
this.fieldToClassNameMappings.put(xmlField, elementType.getName());
}
if (classToFieldMappings.get(elementType) == null) {
classToFieldMappings.put(elementType, xmlField);
}
addChoiceElementMapping(xmlField, elementType);
}
public void addChoiceElement(List<XMLField> srcFields, Class elementType, List<XMLField> tgtFields) {
for(XMLField sourceField:srcFields) {
getFieldToClassMappings().put(sourceField, elementType);
this.fieldToClassNameMappings.put(sourceField, elementType.getName());
}
if (getClassToSourceFieldsMappings().get(elementType) == null) {
getClassToSourceFieldsMappings().put(elementType, srcFields);
}
addChoiceElementMapping(srcFields, elementType, tgtFields);
}
public void addChoiceElement(List<XMLField> srcFields, String elementTypeName, List<XMLField> tgtFields) {
for(XMLField sourceField:srcFields) {
this.fieldToClassNameMappings.put(sourceField, elementTypeName);
}
if (getClassNameToSourceFieldsMappings().get(elementTypeName) == null) {
getClassNameToSourceFieldsMappings().put(elementTypeName, srcFields);
}
addChoiceElementMapping(srcFields, elementTypeName, tgtFields);
}
public void addChoiceElement(String srcXPath, Class elementType, String tgtXPath) {
XMLField srcField = new XMLField(srcXPath);
XMLField tgtField = new XMLField(tgtXPath);
addChoiceElement(srcField, elementType, tgtField);
}
public void addChoiceElement(String srcXpath, String elementTypeName, String tgtXpath) {
XMLField field = new XMLField(srcXpath);
XMLField tgtField = new XMLField(tgtXpath);
this.fieldToClassNameMappings.put(field, elementTypeName);
if(this.classNameToFieldMappings.get(elementTypeName) == null) {
this.classNameToFieldMappings.put(elementTypeName, field);
}
addChoiceElementMapping(field, elementTypeName, tgtField);
}
public void addChoiceElement(XMLField sourceField, Class elementType, XMLField targetField) {
getFieldToClassMappings().put(sourceField, elementType);
this.fieldToClassNameMappings.put(sourceField, elementType.getName());
if (classToFieldMappings.get(elementType) == null) {
classToFieldMappings.put(elementType, sourceField);
}
addChoiceElementMapping(sourceField, elementType, targetField);
}
private void addChoiceElementMapping(List<XMLField> sourceFields, Class theClass, List<XMLField> targetFields) {
XMLCollectionReferenceMapping xmlMapping = new XMLCollectionReferenceMapping();
xmlMapping.setReferenceClass(theClass);
xmlMapping.setAttributeAccessor(temporaryAccessor);
for(int i = 0; i < sourceFields.size(); i++) {
XMLField sourceField = sourceFields.get(i);
xmlMapping.addSourceToTargetKeyFieldAssociation(sourceField, targetFields.get(i));
this.choiceElementMappings.put(sourceField, xmlMapping);
}
}
private void addChoiceElementMapping(List<XMLField> sourceFields, String theClass, List<XMLField> targetFields) {
XMLCollectionReferenceMapping xmlMapping = new XMLCollectionReferenceMapping();
xmlMapping.setReferenceClassName(theClass);
xmlMapping.setAttributeAccessor(temporaryAccessor);
for(int i = 0; i < sourceFields.size(); i++) {
XMLField sourceField = sourceFields.get(i);
xmlMapping.addSourceToTargetKeyFieldAssociation(sourceField, targetFields.get(i));
this.choiceElementMappings.put(sourceField, xmlMapping);
}
}
private void addChoiceElementMapping(XMLField sourceField, Class theClass, XMLField targetField) {
XMLCollectionReferenceMapping mapping = new XMLCollectionReferenceMapping();
mapping.setReferenceClass(theClass);
mapping.setAttributeAccessor(temporaryAccessor);
mapping.addSourceToTargetKeyFieldAssociation(sourceField, targetField);
this.choiceElementMappings.put(sourceField, mapping);
}
private void addChoiceElementMapping(XMLField sourceField, String className, XMLField targetField) {
XMLCollectionReferenceMapping mapping = new XMLCollectionReferenceMapping();
mapping.setReferenceClassName(className);
mapping.setAttributeAccessor(temporaryAccessor);
mapping.addSourceToTargetKeyFieldAssociation(sourceField, targetField);
this.choiceElementMappings.put(sourceField, mapping);
}
public void addChoiceElement(XMLField field, String elementTypeName) {
this.fieldToClassNameMappings.put(field, elementTypeName);
addChoiceElementMapping(field, elementTypeName);
}
public Map<XMLField, Class> getFieldToClassMappings() {
return fieldToClassMappings;
}
public void initialize(AbstractSession session) throws DescriptorException {
super.initialize(session);
if (this.converter != null) {
this.converter.initialize(this, session);
}
Iterator<XMLMapping> mappings = getChoiceElementMappings().values().iterator();
while(mappings.hasNext()){
DatabaseMapping nextMapping = (DatabaseMapping)mappings.next();
Converter converter = null;
if(fieldsToConverters != null) {
converter = fieldsToConverters.get(nextMapping.getField());
}
if(nextMapping.isAbstractCompositeDirectCollectionMapping()){
XMLConversionManager xmlConversionManager = (XMLConversionManager) session.getDatasourcePlatform().getConversionManager();
QName schemaType = (QName)xmlConversionManager.getDefaultJavaTypes().get(((AbstractCompositeDirectCollectionMapping)nextMapping).getAttributeElementClass());
if(schemaType != null) {
((XMLField)nextMapping.getField()).setSchemaType(schemaType);
}
if(converter != null){
((AbstractCompositeDirectCollectionMapping)nextMapping).setValueConverter(converter);
}
((AbstractCompositeDirectCollectionMapping)nextMapping).setContainerPolicy(getContainerPolicy());
}else if(nextMapping.isAbstractCompositeCollectionMapping()){
if(converter != null){
((AbstractCompositeCollectionMapping)nextMapping).setConverter(converter);
}
((AbstractCompositeCollectionMapping)nextMapping).setContainerPolicy(getContainerPolicy());
} else if(nextMapping instanceof XMLBinaryDataCollectionMapping) {
((XMLBinaryDataCollectionMapping)nextMapping).setContainerPolicy(getContainerPolicy());
if(converter != null) {
((XMLBinaryDataCollectionMapping)nextMapping).setValueConverter(converter);
}
} else {
((XMLCollectionReferenceMapping)nextMapping).setContainerPolicy(getContainerPolicy());
((XMLCollectionReferenceMapping)nextMapping).setReuseContainer(true);
}
nextMapping.initialize(session);
}
}
public Map<Class, XMLField> getClassToFieldMappings() {
return classToFieldMappings;
}
public Map<XMLField, XMLMapping> getChoiceElementMappings() {
return choiceElementMappings;
}
public ContainerPolicy getContainerPolicy() {
return containerPolicy;
}
public void setContainerPolicy(ContainerPolicy cp) {
this.containerPolicy = cp;
}
public void useCollectionClass(Class concreteContainerClass) {
this.setContainerPolicy(ContainerPolicy.buildPolicyFor(concreteContainerClass));
}
public void useCollectionClassName(String concreteContainerClassName) {
this.setContainerPolicy(new CollectionContainerPolicy(concreteContainerClassName));
}
public void convertClassNamesToClasses(ClassLoader classLoader) {
Iterator<Entry<XMLField, String>> entries = fieldToClassNameMappings.entrySet().iterator();
while (entries.hasNext()) {
Map.Entry<XMLField, String> entry = entries.next();
String className = entry.getValue();
Class elementType = null;
try {
if (PrivilegedAccessHelper.shouldUsePrivilegedAccess()) {
try {
elementType = (Class) AccessController.doPrivileged(new PrivilegedClassForName(className, true, classLoader));
} catch (PrivilegedActionException exception) {
throw ValidationException.classNotFoundWhileConvertingClassNames(className, exception.getException());
}
} else {
elementType = org.eclipse.persistence.internal.security.PrivilegedAccessHelper.getClassForName(className, true, classLoader);
}
} catch (ClassNotFoundException exc) {
throw ValidationException.classNotFoundWhileConvertingClassNames(className, exc);
}
XMLMapping mapping = this.choiceElementMappings.get(entry.getKey());
mapping.convertClassNamesToClasses(classLoader);
if(!((mapping instanceof XMLCollectionReferenceMapping) && ((XMLCollectionReferenceMapping)mapping).getSourceToTargetKeyFieldAssociations().size() > 1)) {
if (classToFieldMappings.get(elementType) == null) {
classToFieldMappings.put(elementType, entry.getKey());
}
}
if(fieldToClassMappings.get(entry.getKey()) == null) {
fieldToClassMappings.put(entry.getKey(), elementType);
}
}
if(classNameToSourceFieldsMappings != null) {
Iterator<Entry<String, List<XMLField>>> sourceFieldEntries = classNameToSourceFieldsMappings.entrySet().iterator();
while(sourceFieldEntries.hasNext()) {
Entry<String, List<XMLField>> nextEntry = sourceFieldEntries.next();
String className = nextEntry.getKey();
List<XMLField> fields = nextEntry.getValue();
Class elementType = null;
try {
if (PrivilegedAccessHelper.shouldUsePrivilegedAccess()) {
try {
elementType = (Class) AccessController.doPrivileged(new PrivilegedClassForName(className, true, classLoader));
} catch (PrivilegedActionException exception) {
throw ValidationException.classNotFoundWhileConvertingClassNames(className, exception.getException());
}
} else {
elementType = org.eclipse.persistence.internal.security.PrivilegedAccessHelper.getClassForName(className, true, classLoader);
}
} catch (ClassNotFoundException exc) {
throw ValidationException.classNotFoundWhileConvertingClassNames(className, exc);
}
this.getClassToSourceFieldsMappings().put(elementType,fields);
}
}
}
public void addConverter(XMLField field, Converter converter) {
if(this.fieldsToConverters == null) {
fieldsToConverters = new HashMap<XMLField, Converter>();
}
fieldsToConverters.put(field, converter);
}
public Converter getConverter(XMLField field) {
if(null != this.fieldsToConverters) {
Converter converter = fieldsToConverters.get(field);
if(null != converter) {
return converter;
}
if(null != this.choiceElementMappings) {
DatabaseMapping mapping = (DatabaseMapping) this.choiceElementMappings.get(field);
if(null == mapping) {
return null;
}
if(mapping.isAbstractCompositeDirectCollectionMapping()) {
return ((XMLCompositeDirectCollectionMapping)mapping).getValueConverter();
} else if(mapping.isAbstractDirectMapping()) {
return ((XMLDirectMapping)mapping).getConverter();
}
}
}
return null;
}
public ArrayList getChoiceFieldToClassAssociations() {
ArrayList associations = new ArrayList();
if(this.fieldToClassNameMappings.size() > 0) {
for(XMLField xmlField:this.fieldToClassNameMappings.keySet()) {
String className = this.fieldToClassNameMappings.get(xmlField);
XMLChoiceFieldToClassAssociation association = new XMLChoiceFieldToClassAssociation(xmlField, className);
associations.add(association);
}
}
return associations;
}
public void setChoiceFieldToClassAssociations(ArrayList associations) {
if(associations.size() > 0) {
for(Object next:associations) {
XMLChoiceFieldToClassAssociation association = (XMLChoiceFieldToClassAssociation)next;
this.addChoiceElement(association.getXmlField(), association.getClassName());
if(association.getConverter() != null) {
this.addConverter(association.getXmlField(), association.getConverter());
}
}
}
}
private void addChoiceElementMapping(XMLField xmlField, String className){
if (xmlField.getLastXPathFragment().nameIsText() || xmlField.getLastXPathFragment().isAttribute()) {
XMLCompositeDirectCollectionMapping xmlMapping = new XMLCompositeDirectCollectionMapping();
Class theClass = XMLConversionManager.getDefaultXMLManager().convertClassNameToClass(className);
xmlMapping.setAttributeElementClass(theClass);
xmlMapping.setField(xmlField);
xmlMapping.setAttributeAccessor(temporaryAccessor);
this.choiceElementMappings.put(xmlField, xmlMapping);
} else {
if(isBinaryType(className)) {
XMLBinaryDataCollectionMapping xmlMapping = new XMLBinaryDataCollectionMapping();
xmlMapping.setField(xmlField);
xmlMapping.setAttributeAccessor(temporaryAccessor);
Class theClass = XMLConversionManager.getDefaultXMLManager().convertClassNameToClass(className);
xmlMapping.setAttributeElementClass(theClass);
this.fieldsToConverters.put(xmlField, xmlMapping.getValueConverter());
this.choiceElementMappings.put(xmlField, xmlMapping);
} else {
XMLCompositeCollectionMapping xmlMapping = new XMLCompositeCollectionMapping();
if(!className.equals("java.lang.Object")){
xmlMapping.setReferenceClassName(className);
}
xmlMapping.setField(xmlField);
xmlMapping.setAttributeAccessor(temporaryAccessor);
this.choiceElementMappings.put(xmlField, xmlMapping);
}
}
}
private void addChoiceElementMapping(XMLField xmlField, Class theClass){
if (xmlField.getLastXPathFragment().nameIsText() || xmlField.getLastXPathFragment().isAttribute()) {
XMLCompositeDirectCollectionMapping xmlMapping = new XMLCompositeDirectCollectionMapping();
xmlMapping.setAttributeElementClass(theClass);
xmlMapping.setField(xmlField);
xmlMapping.setAttributeAccessor(temporaryAccessor);
this.choiceElementMappings.put(xmlField, xmlMapping);
} else {
if(isBinaryType(theClass)) {
XMLBinaryDataCollectionMapping xmlMapping = new XMLBinaryDataCollectionMapping();
xmlMapping.setField(xmlField);
xmlMapping.setAttributeElementClass(theClass);
xmlMapping.setAttributeAccessor(temporaryAccessor);
this.fieldsToConverters.put(xmlField, xmlMapping.getValueConverter());
this.choiceElementMappings.put(xmlField, xmlMapping);
} else {
XMLCompositeCollectionMapping xmlMapping = new XMLCompositeCollectionMapping();
if(!theClass.equals(ClassConstants.OBJECT)){
xmlMapping.setReferenceClass(theClass);
}
xmlMapping.setField(xmlField);
xmlMapping.setAttributeAccessor(temporaryAccessor);
this.choiceElementMappings.put(xmlField, xmlMapping);
}
}
}
public boolean isWriteOnly() {
return this.isWriteOnly;
}
public void setIsWriteOnly(boolean b) {
this.isWriteOnly = b;
}
public void preInitialize(AbstractSession session) throws DescriptorException {
getAttributeAccessor().setIsWriteOnly(this.isWriteOnly());
getAttributeAccessor().setIsReadOnly(this.isReadOnly());
super.preInitialize(session);
Iterator<XMLMapping> mappings = getChoiceElementMappings().values().iterator();
while(mappings.hasNext()){
DatabaseMapping nextMapping = (DatabaseMapping)mappings.next();
nextMapping.setAttributeName(this.getAttributeName());
if(nextMapping.getAttributeAccessor() == temporaryAccessor){
nextMapping.setAttributeAccessor(getAttributeAccessor());
}
nextMapping.setIsReadOnly(this.isReadOnly());
((XMLMapping)nextMapping).setIsWriteOnly(this.isWriteOnly());
nextMapping.setDescriptor(getDescriptor());
nextMapping.preInitialize(session);
}
}
public void setAttributeValueInObject(Object object, Object value) throws DescriptorException {
if(isWriteOnly()) {
return;
}
super.setAttributeValueInObject(object, value);
}
/**
* Return true if the original container on the object should be used if
* present. If it is not present then the container policy will be used to
* create the container.
*/
public boolean getReuseContainer() {
return reuseContainer;
}
/**
* Specify whether the original container on the object should be used if
* present. If it is not present then the container policy will be used to
* create the container.
*/
public void setReuseContainer(boolean reuseContainer) {
this.reuseContainer = reuseContainer;
}
public Map<Class, List<XMLField>> getClassToSourceFieldsMappings() {
if(this.classToSourceFieldsMappings == null) {
this.classToSourceFieldsMappings = new HashMap<Class, List<XMLField>>();
}
return this.classToSourceFieldsMappings;
}
private Map<String, List<XMLField>> getClassNameToSourceFieldsMappings() {
if(this.classNameToSourceFieldsMappings == null) {
this.classNameToSourceFieldsMappings = new HashMap<String, List<XMLField>>();
}
return this.classNameToSourceFieldsMappings;
}
private boolean isBinaryType(String className) {
if(className.equals(byte[].class.getName()) || className.equals(Byte[].class.getName()) || className.equals(DATA_HANDLER)
|| className.equals(IMAGE) || className.equals(MIME_MULTIPART)) {
return true;
}
return false;
}
private boolean isBinaryType(Class theClass) {
String className = theClass.getName();
if(className.equals(byte[].class.getName()) || className.equals(Byte[].class.getName()) || className.equals(DATA_HANDLER)
|| className.equals(IMAGE) || className.equals(MIME_MULTIPART)) {
return true;
}
return false;
}
public Map<String, XMLField> getClassNameToFieldMappings() {
return classNameToFieldMappings;
}
public boolean isMixedContent() {
return this.mixedContentMapping != null;
}
/**
* PUBLIC:
* Allows the user to indicate that this mapping should also allow for mixed content in addition to
* any of the elements in the choice. The grouping element parameter is used in the case that there is
* a common grouping element to all the other elements in this choice. If so, that grouping element can
* be specified here to allow the mixed content to be written/detected inside the wrapper element.
* @since EclipseLink 2.3.1
*/
public void setMixedContent(String groupingElement) {
String xpath = groupingElement;
if(groupingElement.length() == 0) {
xpath = XMLConstants.TEXT;
} else {
xpath += "/" + XMLConstants.TEXT;
}
XMLField field = new XMLField(xpath);
XMLCompositeDirectCollectionMapping xmlMapping = new XMLCompositeDirectCollectionMapping();
Class theClass = ClassConstants.STRING;
xmlMapping.setAttributeElementClass(theClass);
xmlMapping.setField(field);
xmlMapping.setAttributeAccessor(temporaryAccessor);
this.mixedContentMapping = xmlMapping;
this.choiceElementMappings.put(field, xmlMapping);
}
/**
* PUBLIC:
* Allows the user to indicate that this mapping should also allow for mixed content in addition to
* any of the elements in the choice.
* @since EclipseLink 2.3.1
*/
public void setMixedContent(boolean mixed) {
if(!mixed) {
this.mixedContentMapping = null;
} else {
setMixedContent("");
}
}
public XMLCompositeDirectCollectionMapping getMixedContentMapping() {
return this.mixedContentMapping;
}
/**
* INTERNAL
* Return true if an empty container should be set on the object if there
* is no presence of the collection in the XML document.
* @since EclipseLink 2.3.3
*/
public boolean isDefaultEmptyContainer() {
return isDefaultEmptyContainer;
}
/**
* INTERNAL
* Indicate whether by default an empty container should be set on the
* field/property if the collection is not present in the XML document.
* @since EclipseLink 2.3.3
*/
public void setDefaultEmptyContainer(boolean defaultEmptyContainer) {
this.isDefaultEmptyContainer = defaultEmptyContainer;
}
public AbstractNullPolicy getWrapperNullPolicy() {
return this.wrapperNullPolicy;
}
public void setWrapperNullPolicy(AbstractNullPolicy policy) {
this.wrapperNullPolicy = policy;
}
}