def getLayoutBuilders():
    import org.gephi.layout.spi.LayoutBuilder as LayoutBuilder
    import org.openide.util.Lookup as Lookup

    return Lookup.getDefault().lookupAll(LayoutBuilder)

def runLayout(layout, iters = None):
    import org.gephi.layout.api.LayoutController as LayoutController
    import org.openide.util.Lookup as Lookup

    layoutController = Lookup.getDefault().lookup(LayoutController)

    layout.resetPropertiesValues()
    layoutController.setLayout(layout)

    if iters == None:
        layoutController.executeLayout()
    else:
        layoutController.executeLayout(iters)

def stopLayout():
    import org.gephi.layout.api.LayoutController as LayoutController
    import org.openide.util.Lookup as Lookup

    layoutController = Lookup.getDefault().lookup(LayoutController)
    layoutController.stopLayout()