/**
* Remove a monitor for a metadata object.
*
* @param object The metadata object who wanted to monitor a link but don't now.
*/
public void removeMonitors(Metadata object) {
if (object.getMetaMetadata() instanceof MetaMetadata) {
MetaMetadata mmd = (MetaMetadata) object.getMetaMetadata();
Map<String, LinkWith> linkWiths = mmd.getLinkWiths();
if (linkWiths != null) {
for (String name : linkWiths.keySet()) {
LinkWith lw = linkWiths.get(name);
Map<Metadata, LinkWith> collection = monitorRecords.get(lw.getName());
// collection can't be null
synchronized (collection) {
collection.remove(object);
}
}
}
}
}
public boolean reselect(Metadata metadata) {
if (reselectFields == null || reselectFields.isEmpty()) return false;
for (String fieldName : reselectFields.keySet()) {
FieldDescriptor fd =
metadata.getMetadataClassDescriptor().getFieldDescriptorByFieldName(fieldName);
String actualValue = fd.getValueString(metadata);
String expectedValue = reselectFields.get(fieldName).getValue();
if (!actualValue.equals(expectedValue)) return false;
}
return true;
}
/**
* When a new metadata object is parsed, try to link it with some monitoring metadata objects that
* are waiting here.
*
* @param repository
* @param parsedMetadata
* @return If the linking happens.
*/
public boolean tryLink(MetaMetadataRepository repository, Metadata parsedMetadata) {
if (parsedMetadata == null) {
return false;
}
MetaMetadataCompositeField composite = parsedMetadata.getMetaMetadata();
if (composite == null) {
return false;
}
MetaMetadata mmd;
String mmdName;
if (composite instanceof MetaMetadata) {
mmd = (MetaMetadata) composite;
mmdName = mmd.getName();
} else {
mmdName = composite.getTypeName();
mmd = repository.getMMByName(mmdName);
}
if (mmd == null) {
// maybe it's defined inline -- we need a solution for this kind of inline definition thing!
// currently you can't do metadata linking on inline-defined meta_metadata classes
return false;
}
while (!monitorRecords.containsKey(mmdName)) {
if (mmdName == null || "metadata".equals(mmdName)) return false;
mmdName = mmd.getSuperMmdTypeName();
mmd = repository.getMMByName(mmdName);
}
Map<Metadata, LinkWith> records = monitorRecords.get(mmdName);
for (Metadata object : records.keySet()) {
LinkWith lw = records.get(object);
if (lw.tryLink(parsedMetadata, object)) {
SemanticActionHandler handler = object.pendingSemanticActionHandler;
handler.takeSemanticActions();
return true;
}
}
return false;
}