<T> Iterable<? extends T> lookupProviderInstances1(
Class<T> serviceType, ProviderFactory<T> factory) {
System.err.println("totototo " + serviceType.getCanonicalName());
if (factory == null) {
factory = new DefaultFactory<T>();
}
List<T> providers = new ArrayList<T>();
for (Class c : lookupProviderClasses1(serviceType)) {
try {
final T providerInstance = factory.make(c, serviceType);
if (providerInstance != null) {
providers.add(providerInstance);
} else {
System.err.println(factory + " returned null provider instance!!!");
}
} catch (Exception e) {
e.printStackTrace();
}
}
return providers;
};
private <T> T getProvider(
Collection<AbstractTreeNode> selected, ProviderFactory<T> createProvider) {
if (selected.size() == 0) return null;
List<SNodeReference> selectedNodePointers = new ArrayList<SNodeReference>();
Project project = null;
EditableSModel modelDescriptor = null;
for (AbstractTreeNode treeNode : selected) {
if (!(treeNode instanceof MPSPsiElementTreeNode)) return null; // only root nodes please
MPSPsiRootNode mpsPsiNode = ((MPSPsiElementTreeNode) treeNode).getValue();
if (!mpsPsiNode.isValid()) return null;
selectedNodePointers.add(mpsPsiNode.getSNodeReference());
if (project == null) {
project = treeNode.getProject();
} else if (project != treeNode.getProject()) {
return null; // only same project
}
if (modelDescriptor == null) {
modelDescriptor = getModel(mpsPsiNode);
} else if (modelDescriptor != getModel(mpsPsiNode)) {
return null; // only same model
}
}
jetbrains.mps.project.Project mpsProject = ProjectHelper.toMPSProject(project);
if (mpsProject == null || modelDescriptor == null) return null;
SModel sModel = modelDescriptor;
if (sModel == null) return null;
return createProvider.create(selectedNodePointers, modelDescriptor, sModel, mpsProject);
}
