You're welcome. Call me Ted.
On Wed, Dec 21, 2016 at 8:08 AM, 小展 <[email protected]> wrote: > Thanks Yu! Got it. > > > 在 2016年12月21日，下午11:19，Ted Yu <[email protected]> 写道： > > > > From NamespacesInstanceResource : > > > > private boolean doesNamespaceExist(Admin admin, String namespaceName) > > throws IOException{ > > NamespaceDescriptor[] nd = admin.listNamespaceDescriptors(); > > for(int i = 0; i < nd.length; i++){ > > if(nd[i].getName().equals(namespaceName)){ > > return true; > > } > > } > > return false; > > } > > > > You can use the above code without triggering exception. > > > > FYI > > > > On Wed, Dec 21, 2016 at 7:15 AM, 小展 <[email protected]> wrote: > > > >> Hi, guys > >> In Admin class , we still haven’t a api to check the namespace > >> exist . Now , when I want to check a namespace exist in my cluster , I > >> use #getNamespaceDescriptor。 If catch NamespaceNotFoundException than > >> return false，otherwise return true . I don’t think that’s a good way . > And > >> I also find in TableNamespceManager class we used > >> doesNamespaceExist(final String namespaceName) to check namespace > exist . > >> > >> I don’t know is there I miss something . > >> > >> If you have better way Or we should add a api ? Please tell me . > > > >
