/**Import target from file. Prompts user to select a format type, then
* call loadTargets to select and import files.*/
@SuppressWarnings("unchecked")
protected void importTargets() {
TargetInputFormat tif = null;
Class<?> targetClass = null;
SequenceBuilder<? extends ProbeMakerTarget> seqBuilder;
SequenceDBDataReader format;
Transformer conv = null;