Fixed sourceOffset value while calling preview
Fixed sourceOffset value while calling preview

kunickiaj/datacollector,streamsets/datacollector,WgStreamsets/datacollector,SandishKumarHN/datacollector,WgStreamsets/datacollector,streamsets/datacollector,SandishKumarHN/datacollector,kunickiaj/datacollector,z123/datacollector,streamsets/datacollector,rockmkd/datacollector,kunickiaj/datacollector,studanshu/datacollector,z123/datacollector,kunickiaj/datacollector,z123/datacollector,studanshu/datacollector,kiritbasu/datacollector,kiritbasu/datacollector,rockmkd/datacollector,z123/datacollector,studanshu/datacollector,rockmkd/datacollector,studanshu/datacollector,z123/datacollector,SandishKumarHN/datacollector,rockmkd/datacollector,kiritbasu/datacollector,WgStreamsets/datacollector,kiritbasu/datacollector,rockmkd/datacollector,WgStreamsets/datacollector,kunickiaj/datacollector,WgStreamsets/datacollector,studanshu/datacollector,streamsets/datacollector,SandishKumarHN/datacollector,kiritbasu/datacollector,streamsets/datacollector,SandishKumarHN/datacollector