protected boolean hasMappedParents(Collection<?> inputs, Collection<?> outputs) {
Collection<Object> parents = new HashSet<Object>();
for (Object input : inputs) {
parents.add(domain.getParent(input));
}
for (Object output : outputs) {
parents.add(domain.getParent(output));
}
return !getAllMappings(parents).isEmpty();
}
public boolean isAttachedObject(Object object) {
Object root = object;
// FB used to check for parent != null.
// Need to find the top most model object not including the resource.
// parent instanceof Eobject only checks for trees in model object space.
for (Object parent = domain.getParent(object);
parent instanceof EObject;
parent = domain.getParent(parent)) {
root = parent;
}
return getInputs().contains(root) || getOutputs().contains(root);
}
public void setDomain(MappingDomain domain) {
if (this.domain != domain) {
if (this.domain != null) {
eAdapters.remove(mappedObjectListener);
}
this.domain = domain;
domain.setMappingRoot(this);
mappedObjectListener =
new AdapterImpl() {
@Override
public void notifyChanged(Notification notification) {
Object feature = notification.getFeature();
if (feature == MappingPackage.eINSTANCE.getMapping_Inputs()
|| feature == MappingPackage.eINSTANCE.getMapping_Outputs()) {
initializeMappedObjectStates();
}
}
};
eAdapters().add(mappedObjectListener);
initializeMappedObjectStates();
}
}
protected Collection<Object> getTypeClassifiers(Collection<?> collection) {
Collection<Object> types = new ArrayList<Object>();
for (Object object : collection) {
Object type = domain.getTypeClassifier(object);
if (type != null) {
types.add(type);
}
}
return types;
}
public boolean canRemoveMapping(Mapping mapping) {
int enablementFlags = domain.getMappingEnablementFlags();
if (mapping.getNestedIn() == null
|| (enablementFlags & MappingDomain.ENABLE_UNMAPPED_PARENTS) == 0
&& hasMappedChildren(mapping)) {
return false;
}
return true;
}
protected boolean hasCompatibleMetaObjects(Collection<?> inputs, Collection<?> outputs) {
for (Object input : inputs) {
EObject inputType = ((EObject) input).eClass();
EObject convertedInputType = domain.getOutputMetaObject(inputType);
for (Object output : outputs) {
EObject outputType = ((EObject) output).eClass();
if (convertedInputType != outputType) {
return false;
}
}
}
return true;
}
public void refreshMappedObjectStates(Mapping subtree) {
for (Object input : subtree.getInputs()) {
for (Iterator<?> objects = domain.treeIterator(input); objects.hasNext(); ) {
Object object = objects.next();
MappedObjectState mappedObjectState = getMappedObjectState(object);
if (mappedObjectState != null) {
mappedObjectState.setInput();
}
}
}
for (Object output : subtree.getOutputs()) {
for (Iterator<?> objects = domain.treeIterator(output); objects.hasNext(); ) {
MappedObjectState mappedObjectState = getMappedObjectState(objects.next());
if (mappedObjectState != null) {
mappedObjectState.setOutput();
}
}
}
for (Iterator<Mapping> mappings = subtree.treeIterator(); mappings.hasNext(); ) {
Mapping mapping = mappings.next();
for (Object input : mapping.getInputs()) {
MappedObjectState mappedObjectState = getMappedObjectState(input);
if (mappedObjectState != null) {
mappedObjectState.getMappings().add(mapping);
}
}
for (Object output : mapping.getOutputs()) {
MappedObjectState mappedObjectState = getMappedObjectState(output);
if (mappedObjectState != null) {
mappedObjectState.getMappings().add(mapping);
}
}
}
}
public Mapping getParentMapping(Collection<?> collection) {
// Barring a better result, this will be the result.
//
Mapping result = this;
// Cache the tree path for each object.
//
final Collection<List<?>> allTreePaths = new ArrayList<List<?>>();
for (Object object : collection) {
allTreePaths.add(domain.getTreePath(object));
}
// Iterate over the mappings in the tree.
//
OuterLoop:
for (TreeIterator<Mapping> mappings = treeIterator(); mappings.hasNext(); ) {
Mapping mapping = mappings.next();
// Check to make sure that every object in the collection has an ancestor that is contained in
// this mapping.
//
for (Iterator<List<?>> treePaths = allTreePaths.iterator(); treePaths.hasNext(); ) {
List<?> treePath = treePaths.next();
Collection<?> mappedObjects = mapping.getMappedObjects();
mappedObjects.retainAll(treePath);
// If the intersection is empty, i.e., no ancestor is in the mapping...
//
if (mappedObjects.isEmpty()) {
// If this mapping isn't a parent, it's children definitely won't be either.
//
mappings.prune();
continue OuterLoop;
}
}
// Make sure the collections aren't identical...
//
Collection<?> mappedObjects = mapping.getMappedObjects();
if (!collection.containsAll(mappedObjects) || !mappedObjects.containsAll(collection)) {
result = mapping;
}
}
return result;
}
public boolean canCreateMapping(Collection<?> inputs, Collection<?> outputs, Mapping mapping) {
if (domain == null) {
return false;
}
int enablementFlags = domain.getMappingEnablementFlags();
if ((enablementFlags & MappingDomain.ENABLE_EMPTY_INPUTS) == 0 && inputs.size() == 0
|| (enablementFlags & MappingDomain.ENABLE_EMPTY_OUTPUTS) == 0 && outputs.size() == 0
|| inputs.size() == 0 && outputs.size() == 0
|| (enablementFlags & MappingDomain.ENABLE_MULTIPLE_INPUTS) == 0 && inputs.size() > 1
|| (enablementFlags & MappingDomain.ENABLE_MULTIPLE_OUTPUTS) == 0 && outputs.size() > 1
|| (enablementFlags & MappingDomain.ENABLE_MULTIPLE_INPUT_MAPPINGS) == 0
&& isMapped(inputs, mapping)
|| (enablementFlags & MappingDomain.ENABLE_MULTIPLE_OUTPUT_MAPPINGS) == 0
&& isMapped(outputs, mapping)
|| (enablementFlags & MappingDomain.ENABLE_UNMAPPED_PARENTS) == 0
&& !hasMappedParents(inputs, outputs)
|| (enablementFlags & MappingDomain.ENABLE_INCOMPATIBLE_METAOBJECTS) == 0
&& !hasCompatibleMetaObjects(inputs, outputs)
|| (enablementFlags & MappingDomain.ENABLE_INCOMPATIBLE_TYPE_CLASSIFIERS) == 0
&& !hasCompatibleTypes(inputs, outputs)) {
return false;
}
for (Object input : inputs) {
if (!isAttachedObject(input)) {
return false;
}
}
for (Object output : outputs) {
if (!isAttachedObject(output)) {
return false;
}
}
return true;
}