use of org.jaffa.datatypes.exceptions.InvalidForeignKeyException in project jaffa-framework by jaffa-projects.
the class DataTransformer method buildGraphFromDomain.
/**
* Mould data from domain object and its related objects into a new JavaBean based
* domain object graph, based on the defined mapping rules.
*
* @param source Source object to mould data from, typically extends Persistent
* @param target Target object to mould data to, typically extends GraphDataObject
* @param graph The mapping class with the rules of how to map this source object
* @param filter Filter object that it is used to control what fields are populated or the target objects
* @param objectPath The path of this object being processed. This identifies possible parent
* and/or indexed entries where this object is contained.
* @param includeKeys true if key fields should be included in results regardless of the filters
* @param originalCriteria the original graph criteria.
* @param handler Possible bean handler to be used when processing this source object graph
* @throws ApplicationExceptions Thrown if one or more application logic errors are generated during moulding
* @throws FrameworkException Thrown if any runtime moulding error has occured.
*/
public static void buildGraphFromDomain(Object source, Object target, GraphMapping graph, MappingFilter filter, String objectPath, boolean includeKeys, GraphCriteria originalCriteria, ITransformationHandler handler) throws ApplicationExceptions, FrameworkException {
if (graph == null)
graph = MappingFactory.getInstance(target);
boolean useQueryDomain = graph.getQueryDomainClass() != null && source.getClass().isAssignableFrom(graph.getQueryDomainClass());
// throw new InstantiationException("A GraphMapping must be supplied");
if (filter == null)
filter = MappingFilter.getInstance(graph);
try {
// get list of target fileds to populate
String[] tFields = graph.getDataFieldNames();
if (tFields != null && tFields.length != 0)
for (int i = 0; i < tFields.length; i++) {
// Try to map a source to a target
String tName = tFields[i];
String fullName = tName;
if (objectPath != null)
fullName = objectPath + "." + fullName;
if (filter == null || filter.isFieldIncluded(fullName) || (includeKeys && graph.isKeyField(tName))) {
String sName = graph.getDomainFieldName(tName);
AccessibleObject tAccessibleObject = graph.getDataMutator(tName);
PropertyDescriptor tDesc = graph.getDataFieldDescriptor(tName);
PropertyDescriptor sDesc = useQueryDomain ? graph.getQueryDomainFieldDescriptor(tName) : graph.getDomainFieldDescriptor(tName);
if (useQueryDomain && sDesc == null)
continue;
// GraphObject descriptor with a setter, and a DO descriptor with a getter
if (sDesc == null)
log.error("No Getter for " + tName + " in path " + fullName);
// incase getter is not public, make it available
Method sm = sDesc.getReadMethod();
if (!sm.isAccessible())
sm.setAccessible(true);
// Set the value if the source and target are the same datatype
Class tClass = tDesc.getPropertyType();
Class sClass = sDesc.getPropertyType();
if (tClass.isAssignableFrom(sClass)) {
// Get the value being copied
Object sValue = sm.invoke(source, (Object[]) null);
setValue(tAccessibleObject, target, sValue);
if (log.isDebugEnabled())
log.debug("Set " + tName + " = " + sValue);
// See if there is a datatype mapper for these classes
} else if (DataTypeMapper.instance().isMappable(sClass, tClass)) {
// Get the value being copied
Object sValue = sm.invoke(source, (Object[]) null);
if (sValue != null) {
sValue = DataTypeMapper.instance().map(sValue, tClass);
if (log.isDebugEnabled())
log.debug("Set " + tName + " = " + sValue);
}
setValue(tAccessibleObject, target, sValue);
// See if target is a GraphObject, this could be a foreign object or one-to-one relationship...
} else if (GraphDataObject.class.isAssignableFrom(tClass) && IPersistent.class.isAssignableFrom(sClass)) {
// Get the mapper for the related GraphObject, if it has keys, it must be a foriegn object
if (graph.isForeignField(tName)) {
// look at foreign key fields, and make sure they are not null
List foreignKeys = graph.getForeignKeys(tName);
List foreignKeyValues = new ArrayList();
boolean nullKey = false;
for (Iterator k = foreignKeys.iterator(); k.hasNext(); ) {
String doProp = (String) k.next();
Object value = null;
PropertyDescriptor doPd = graph.getRealDomainFieldDescriptor(doProp);
if (doPd != null && doPd.getReadMethod() != null) {
Method m = doPd.getReadMethod();
if (!m.isAccessible())
m.setAccessible(true);
value = m.invoke(source, new Object[] {});
if (value == null)
nullKey = true;
foreignKeyValues.add(value);
} else {
throw new TransformException(TransformException.INVALID_FK_MAPPING, objectPath, doProp, graph.getDomainClassShortName());
}
}
if (nullKey) {
if (log.isDebugEnabled())
log.debug("Did not create skeleton object '" + tClass.getName() + "': one or more foreign key values missing.");
} else {
// Create the foreign object
if (log.isDebugEnabled())
log.debug("Creating foreign object - " + tClass.getName());
Object newGDO = newGraphDataObject(tClass);
boolean createSkeleton = true;
// Only retrieve related domain object and introspect if need
if (filter.areSubFieldsIncluded(fullName)) {
// read object and introspect all
if (log.isDebugEnabled())
log.debug("Read foreign object '" + fullName + "' and mold");
try {
Object sValue = sm.invoke(source, (Object[]) null);
if (sValue != null) {
DataTransformer.buildGraphFromDomain(sValue, newGDO, null, filter, fullName, true, originalCriteria, handler);
createSkeleton = false;
}
} catch (InvocationTargetException e) {
// If the foreign object is not found, create the skeleton
if (e.getCause() != null && e.getCause() instanceof InvalidForeignKeyException) {
if (log.isDebugEnabled())
log.debug("All foreign keys present, but foreign object does not exist", e);
} else
throw e;
}
}
if (createSkeleton) {
// just set foreign keys from current object
if (log.isDebugEnabled())
log.debug("Set keys on skeleton foreign object only");
GraphMapping graph2 = MappingFactory.getInstance(newGDO);
Set keys = graph2.getKeyFields();
if (keys == null || keys.size() != foreignKeyValues.size()) {
throw new TransformException(TransformException.MISMATCH_FK_MAPPING, objectPath, target.getClass().getName(), newGDO.getClass().getName());
}
int k2 = 0;
// Look through all the foreign keys on the skeleton object
for (Iterator k = keys.iterator(); k.hasNext(); k2++) {
String keyField = (String) k.next();
Object keyValue = foreignKeyValues.get(k2);
AccessibleObject accessibleObject = graph2.getDataMutator(keyField);
if (accessibleObject != null) {
setValue(accessibleObject, newGDO, keyValue);
} else {
throw new TransformException(TransformException.CANT_SET_KEY_FIELD, objectPath, keyField, newGDO.getClass().getName());
}
}
}
setValue(tAccessibleObject, target, newGDO);
if (log.isDebugEnabled())
log.debug("Set " + tName + " = " + newGDO);
}
} else {
// This is not a foreign object, must be a related object
if (filter.areSubFieldsIncluded(fullName)) {
// Create the related object
if (log.isDebugEnabled())
log.debug("Creating One-To-One object - " + tClass.getName());
Object newGDO = newGraphDataObject(tClass);
// read object and introspect all
if (log.isDebugEnabled())
log.debug("Read related object '" + fullName + "' and mold");
Object sValue = sm.invoke(source, (Object[]) null);
if (sValue != null) {
DataTransformer.buildGraphFromDomain(sValue, newGDO, null, filter, fullName, false, originalCriteria, handler);
setValue(tAccessibleObject, target, newGDO);
if (log.isDebugEnabled())
log.debug("Set " + tName + " = " + newGDO);
} else {
if (log.isDebugEnabled())
log.debug("Related object '" + fullName + "' not found. Ignore it!");
}
} else {
if (log.isDebugEnabled())
log.debug("No subfields for object " + fullName + " included. Object not retrieved");
}
}
// END-related object
// See if Target may be an array of GraphObject's
} else if (tClass.isArray() && GraphDataObject.class.isAssignableFrom(tClass.getComponentType()) && filter.areSubFieldsIncluded(fullName)) {
if (log.isDebugEnabled())
log.debug("Target is an array of GraphObject's");
if (sClass.isArray() && IPersistent.class.isAssignableFrom(sClass.getComponentType())) {
if (log.isDebugEnabled()) {
log.debug("Source is an array of Persistent Objects");
log.debug("Read related objects '" + fullName + "' and mold");
}
Object[] sArray = findRelatedObjects(source, sClass, sm, handler, originalCriteria, fullName);
if (sArray != null && sArray.length > 0) {
Object[] tArray = (Object[]) Array.newInstance(tClass.getComponentType(), sArray.length);
if (log.isDebugEnabled())
log.debug("Translate Array of Size " + sArray.length);
for (int j = 0; j < sArray.length; j++) {
Object newGDO = newGraphDataObject(tClass.getComponentType());
DataTransformer.buildGraphFromDomain(sArray[j], newGDO, null, filter, fullName, false, originalCriteria, handler);
tArray[j] = newGDO;
if (log.isDebugEnabled())
log.debug("Add to array [" + j + "] : " + newGDO);
}
setValue(tAccessibleObject, target, tArray);
if (log.isDebugEnabled())
log.debug("Set Array " + tName);
} else {
if (log.isDebugEnabled())
log.debug("Source Array is empty! Do Nothing");
}
}
// source is DO array
// Error... No way to map property
} else {
String err = "Can't Mold Property " + fullName + " from " + sClass.getName() + " to " + tClass.getName();
log.error(err);
throw new RuntimeException(err);
}
}
// is included in filtered fields
}
// By default all the domain-mapped flex fields will be loaded; unless excluded by a rule
if (source instanceof IFlexFields && target instanceof IFlexFields) {
String fullName = (objectPath != null ? objectPath + '.' : "") + "flexBean";
if (filter == null || filter.isFieldIncluded(fullName)) {
if (log.isDebugEnabled())
log.debug("Loading FlexBean " + fullName);
FlexBean sFlexBean = ((IFlexFields) source).getFlexBean();
FlexBean tFlexBean = ((IFlexFields) target).getFlexBean();
if (sFlexBean != null && tFlexBean != null) {
for (DynaProperty flexProperty : sFlexBean.getDynaClass().getDynaProperties()) {
String name = flexProperty.getName();
Boolean include = filter.includeField(fullName + '.' + name);
if (include != null ? include : ((FlexProperty) flexProperty).getFlexInfo().getProperty("domain-mapping") != null) {
Object value = sFlexBean.get(name);
if (value != null) {
if (log.isDebugEnabled())
log.debug("Loaded flex field '" + name + '=' + value + '\'');
tFlexBean.set(name, value);
}
}
}
}
}
}
// Clear changed fields on updated GraphObject
if (target != null && target instanceof GraphDataObject)
((GraphDataObject) target).clearChanges();
// Invoke the handler
if (handler != null) {
if (log.isDebugEnabled()) {
log.debug("Invoking the endBeanLoad on the handler");
}
for (ITransformationHandler transformationHandler : handler.getTransformationHandlers()) {
transformationHandler.endBeanLoad(objectPath, source, target, filter, originalCriteria);
}
}
} catch (ApplicationException e) {
throw new ApplicationExceptions(e);
} catch (IllegalAccessException e) {
TransformException me = new TransformException(TransformException.ACCESS_ERROR, objectPath, e.getMessage());
log.error(me.getLocalizedMessage(), e);
throw me;
} catch (InvocationTargetException e) {
ApplicationExceptions appExps = ExceptionHelper.extractApplicationExceptions(e);
if (appExps != null)
throw appExps;
FrameworkException fe = ExceptionHelper.extractFrameworkException(e);
if (fe != null)
throw fe;
TransformException me = new TransformException(TransformException.INVOCATION_ERROR, objectPath, e);
log.error(me.getLocalizedMessage(), me.getCause());
throw me;
} catch (InstantiationException e) {
TransformException me = new TransformException(TransformException.INSTANTICATION_ERROR, objectPath, e.getMessage());
log.error(me.getLocalizedMessage(), e);
throw me;
}
}
use of org.jaffa.datatypes.exceptions.InvalidForeignKeyException in project jaffa-framework by jaffa-projects.
the class ForeignKeyValidator method validateKey.
/**
* Apply the foreign-key validation at the property-level.
*/
private void validateKey(T targetObject, String[] fkFields, Object[] fkValues, RuleMetaData rule) throws ApplicationException, JaffaRulesFrameworkException {
if (log.isDebugEnabled()) {
log.debug("Applying the check " + rule + " for the fields " + fkFields + " on " + targetObject);
}
// Find the 'public static boolean exists(UOW uow, Object key...)' method
Method m = findMethod(fkFields, rule);
// Invoke the 'public static boolean exists(UOW uow, Object key...)' method
Boolean result;
try {
result = (Boolean) m.invoke(null, fkValues);
} catch (Exception e) {
throw new JaffaRulesFrameworkException(e.getMessage(), null, e);
}
if (result == null || !result) {
String domainLabel = getObjectLabel(m.getDeclaringClass().getName(), null);
StringBuilder fkLabel = new StringBuilder();
for (int i = 0; i < fkFields.length; i++) {
if (i > 0) {
fkLabel.append(',');
}
fkLabel.append(getPropertyLabel(targetObject, fkFields[i]));
}
String fieldKeyLabel = fkLabel.toString();
String primaryKeyLabel = getPrimaryKeyLabel(m.getDeclaringClass().getName(), null);
if (primaryKeyLabel == null) {
primaryKeyLabel = fieldKeyLabel;
}
if (log.isDebugEnabled()) {
log.debug("ForeignKey validation for the value '" + fkValues + "' of '" + fkFields + "' failed against the domainObject '" + m.getDeclaringClass().getName() + '\'');
}
Object[] arguments = getErrorArgumentArray(targetObject, rule);
if (arguments.length == 0) {
arguments = new Object[] { domainLabel, primaryKeyLabel };
}
throw wrapException(new InvalidForeignKeyException(fkLabel.toString(), arguments), targetObject, rule);
}
}
use of org.jaffa.datatypes.exceptions.InvalidForeignKeyException in project jaffa-framework by jaffa-projects.
the class ExtensionTest method testFormat.
/*
Commenting out until AOP interceptors are finished
public void testForeignKey() {
try {
Extension1 obj = createExtension1();
try {
obj.setField10("ZZZ");
obj.validate();
fail("The invocation Extension1.setField10(ZZZ) should have failed since we passed an invalid foreign-key");
} catch (Exception e) {
InvalidForeignKeyException appExp = (InvalidForeignKeyException) ExceptionHelper.extractException(e, InvalidForeignKeyException.class);
if (appExp != null) {
Object[] arguments = appExp.getArguments();
assertNotNull("The InvalidForeignKeyException should have arguments", arguments);
assertTrue("The InvalidForeignKeyException should have arguments", arguments.length > 0);
assertEquals("The InvalidForeignKeyException should have been created for field10", "field10", arguments[0]);
} else {
throw e;
}
}
obj.setField10("KEY2");
obj.validate();
} catch (Exception e) {
e.printStackTrace(System.err);
fail();
}
}
*/
public void testFormat() {
log.debug("testFormat");
try {
Extension1 obj = new Extension1();
IPropertyRuleIntrospector w = RulesEngineFactory.getRulesEngine().getPropertyRuleIntrospector(obj.getClass().getName(), "field4", obj);
// This should utilize the 'decimalOptional.format' layout specified in the rules file
assertEquals("101", w.format(101d));
w = RulesEngineFactory.getRulesEngine().getPropertyRuleIntrospector(obj.getClass().getName(), "field9", obj);
// This should use the default layout, since no layout is specified in the rules file
assertEquals("101.00", w.format(101d));
} catch (Exception e) {
e.printStackTrace(System.err);
fail();
}
}
use of org.jaffa.datatypes.exceptions.InvalidForeignKeyException in project jaffa-framework by jaffa-projects.
the class TransactionDependency method findTransactionObject.
/**
* Finds the related foreign Transaction object.
* If checkExistenceOnly is false, then the foreign object will be fetched and assigned to the corresponding member variable of this class.
* If checkExistenceOnly is true, then a mere existence check is performed for the foreign object, as oppposed to fetching all the values for that object.
*/
private void findTransactionObject(boolean checkExistenceOnly) throws ValidationException, FrameworkException {
// TODO this is generated code...
if (m_transactionObject == null && getTransactionId() != null) {
Transaction transaction = getTransactionDAO().getTransaction(getTransactionId());
Number count = null;
if (checkExistenceOnly) {
if (transaction != null) {
count = 1;
}
} else {
m_transactionObject = transaction;
}
if ((m_transactionObject == null) && ((count == null) || (count.intValue() <= 0))) {
throw new InvalidForeignKeyException(TransactionDependencyMeta.META_TRANSACTION_ID.getLabelToken(), new Object[] { TransactionMeta.getLabelToken(), TransactionMeta.META_ID.getLabelToken() });
}
}
}
use of org.jaffa.datatypes.exceptions.InvalidForeignKeyException in project jaffa-framework by jaffa-projects.
the class TransactionField method findTransactionObject.
/**
* Finds the related foreign Transaction object.
* If checkExistenceOnly is false, then the foreign object will be fetched and assigned to the corresponding member variable of this class.
* If checkExistenceOnly is true, then a mere existence check is performed for the foreign object, as oppposed to fetching all the values for that object.
*/
private void findTransactionObject(boolean checkExistenceOnly) throws ValidationException, FrameworkException {
// TODO this is generated...
if ((m_transactionObject == null) && (getTransactionId() != null)) {
Transaction transaction = getTransactionDAO().getTransaction(getTransactionId());
Number count = null;
if (checkExistenceOnly) {
if (transaction != null) {
count = 1;
}
} else {
m_transactionObject = transaction;
}
if ((m_transactionObject == null) && ((count == null) || (count.intValue() <= 0))) {
throw new InvalidForeignKeyException(TransactionFieldMeta.META_TRANSACTION_ID.getLabelToken(), new Object[] { TransactionMeta.getLabelToken(), TransactionMeta.META_ID.getLabelToken() });
}
}
}
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