/**
* Ensures that the File associated with this stub (if any) is in a writable location
*
* @param stub
*/
protected <T> void validateOutputPath(final Stub<T> stub) {
if (stub.getOutputFile() != null && !(IOUtils.isSpecialFile(stub.getOutputFile()))) {
final File parentDir = stub.getOutputFile().getAbsoluteFile().getParentFile();
if (!(parentDir.canWrite() && parentDir.canExecute()))
throw new UserException.CouldNotCreateOutputFile(
stub.getOutputFile(),
"either the containing directory doesn't exist or it isn't writable");
}
}
/**
* Provide a mechanism for injecting supplemental streams for external management.
*
* @param stub Stream to manage.
*/
public <T> void addOutput(Stub<T> stub, Storage<T> storage) {
stub.register(this);
outputs.put(stub, storage);
validateOutputPath(stub);
}