private void addNewDependency(
String id, String version, int match, List preservedImports, List newImports)
throws CoreException {
if (findFeaturePlugin(id, version, match) != null) {
// don't add imports to local plug-ins
return;
}
if (findImport(preservedImports, id, version, match) != null) {
// already seen
return;
}
if (findImport(newImports, id, version, match) != null) {
// already seen
return;
}
IFeatureImport iimport = findImport(fImports, id, version, match);
if (iimport != null) {
// import still valid
preservedImports.add(iimport);
return;
}
// a new one is needed
iimport = getModel().getFactory().createImport();
iimport.setId(id);
iimport.setVersion(version);
iimport.setMatch(match);
((FeatureImport) iimport).setInTheModel(true);
newImports.add(iimport);
}
/*
* returns true if this thread can obtain the global lock or already has the lock;
* otherwise this loader and thread are added to the waitingList
*/
private static synchronized boolean tryLock(Thread currentThread, Object loader) {
if (lockThread == currentThread) {
lockCount++;
return true;
}
if (lockThread == null) {
lockCount++;
lockThread = currentThread;
return true;
}
waitingList.add(new Object[] {currentThread, loader});
return false;
}
