CustomTransform.java

public class CustomTransform extends Transform {
    @Override
    public String getName() {
        return "CustomProc";
    }

    @Override
    public Set<QualifiedContent.ContentType> getInputTypes() {
        return ImmutableSet.of(QualifiedContent.DefaultContentType.CLASSES);
    }

    @Override
    public Set<? super QualifiedContent.Scope> getScopes() {
        return ImmutableSet.of(QualifiedContent.Scope.PROJECT);
    }

    @Override
    public void transform(TransformInvocation transformInvocation) {
        Set<String> classNames = getClassNames(transformInvocation.getInputs());
        ClassPool classPool = createClassPool(transformInvocation.getInputs(),
                transformInvocation.getReferencedInputs());

        Set<CtClass> ctClasses = getCtClasses(classPool, classNames);
        processClasses(new ProviderGenerator(), classPool, ctClasses);

        String outputPath = getOutputPath(transformInvocation.getOutputProvider());
        saveClasses(outputPath, ctClasses);
    }

    @Override
    public boolean isIncremental() {
        return false;
    }
}