[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
RE: [Handle-info] how to resolve a handle prefix owner?
> thanks a lot.
> Man you are working at all projects, not only Lucene but also handle-info.
> Anything else I should know about? ;-)
Oh there are many other things :-) But I am working for PANGAEA, where I started to use Lucene and implement numeric search. Handle system is just a secondary battlefield, because PANGAEA registers DOIs through DataCite.
Recently my "job" as "unicode and localization policeman" found some bugs in the handle server software, which makes it unuseable in the Turkish locale; I am trying to find a place where to file a bug report. If you hear Turkish locale, you may know about the issue in the handle server software, if not, read http://blog.thetaphi.de/2012/07/default-locales-default-charsets-and.html - With a new ANT/Maven plugin you can scan your own Java Bytecode for those problems involving default charsets, locales and timezones.
> The main problem is that while harvesting over 2500 OAI repositories there
> are some repositories with dc:identifier for hdl.handle.net which do not
> resolve.
Ah so you needed no "generic way to detect this", so the simple hdl.handle.net website was enough. I think then you have all information needed with 0.NA/prefix.
> Either they have an invalid prefix (not registered?) or we get a "server not
> responding" (sound like prefix is valid but suffix is not?).
>
> Anyway, first step would be to check if the prefix is registered and then to
> get in contact with repository admin via Email.
>
> By the way, I have also indexed your repository:
> http://www.base-search.net/Search/Results?q=dccoll:ftpangaea
>
> Regards
> Bernd
>
>
> Am 27.02.2013 14:47, schrieb Uwe Schindler:
> > Hi Bernd,
> >
> > it depends "what information you need" or better, what you are intending
> to do. As Mark already mentioned, to get the eMail adresse is a possibility. In
> our case (we are part of DataCite), we needed to check, if any handle is
> owned by crossref or by datacite. The eMail information is therefore not
> really useful to get this information. But Instead we use the HS_SERV record,
> which returns the handle of the responsible handle server for the prefix. This
> is very nice to find out, which handle server is responsible and based on that
> to make a decision.
> >
> > Here is our Java code to do this information. Please note:
> Util.getZeroNAHandle(Util.encodeString(hdl)) <-- this returns the
> 0.NA/prefix-Handle of a given Handle. If you want to use Mark's approach
> (get the e-Mail address), just change Common.STD_TYPE_HSSERV to
> Common.STD_TYPE_EMAIL. Of course you can get any other information
> from the list of values in the corresponding 0.NA handle.
> >
> > public static final HandleType getHandleType(String hdl) throws
> HandleException {
> > ResolutionRequest req=new ResolutionRequest(
> > Util.getZeroNAHandle(Util.encodeString(hdl)),
> > new byte[][]{ Common.STD_TYPE_HSSERV },
> > new int[0],
> > null);
> > AbstractResponse response=handleResolver.processRequest(req, null);
> >
> if(response.responseCode==AbstractMessage.RC_HANDLE_NOT_FOUND) {
> > throw new
> HandleException(HandleException.HANDLE_DOES_NOT_EXIST);
> > } else if (response instanceof ErrorResponse){
> > String msg = Util.decodeString( ((ErrorResponse)response).message );
> > throw new
> HandleException(HandleException.INTERNAL_ERROR,AbstractMessage.getR
> esponseCodeMessage(response.responseCode)+": "+msg);
> > }
> >
> > HandleValue values[] =
> ((ResolutionResponse)response).getHandleValues();
> > if (values==null || values.length==0)
> > throw new
> HandleException(HandleException.HANDLE_DOES_NOT_EXIST, "Handle
> contains no HS_SERV.");
> > for (HandleValue hv : values) {
> > if (Util.equals(Common.STD_TYPE_HSSERV, hv.getType())){
> > return HandleType.lookup(hv.getDataAsString());
> > }
> > }
> > throw new
> > HandleException(HandleException.HANDLE_DOES_NOT_EXIST,"Handle
> contains
> > no HS_SERV."); }
> >
> > public static enum HandleType {
> > UNKNOWN, CROSSREF, DATACITE;
> >
> > public static HandleType lookup(String hsServ) {
> > if (hsServ.equalsIgnoreCase("0.SERV/10.crossref")) {
> > return CROSSREF;
> > } else if (hsServ.equalsIgnoreCase("0.SERV/10.TIB")) {
> > return DATACITE;
> > } else {
> > return UNKNOWN;
> > }
> > }
> > }
> >
> > -----
> > UWE SCHINDLER
> > Webserver/Middleware Development
> > PANGAEA - Data Publisher for Earth & Environmental Science MARUM
> > (Cognium building) - University of Bremen Room 0510, Hochschulring 18,
> > D-28359 Bremen
> > Tel.: +49 421 218 65595
> > Fax: +49 421 218 65505
> > http://www.pangaea.de/
> > E-mail: uschindler@pangaea.de
> >
> >
> >> -----Original Message-----
> >> From: handle-info-admin@cnri.reston.va.us [mailto:handle-info-
> >> admin@cnri.reston.va.us] On Behalf Of Bernd Fehling
> >> Sent: Wednesday, February 27, 2013 8:23 AM
> >> To: handle-info@cnri.reston.va.us
> >> Subject: [Handle-info] how to resolve a handle prefix owner?
> >>
> >> Hi list,
> >>
> >> i tried to figure out how to resolve an owner of a prefix handle but
> >> couldn't find any way to solve this.
> >>
> >> Any idea how to lookup a prefix owner?
> >>
> >> Regards
> >> Bernd
> >>
> >> _______________________________________________
> >> Handle-Info mailing list
> >> Handle-Info@cnri.reston.va.us
> >> http://www.handle.net/mailman/listinfo/handle-info
> >
> >
> > _______________________________________________
> > Handle-Info mailing list
> > Handle-Info@cnri.reston.va.us
> > http://www.handle.net/mailman/listinfo/handle-info
> >
>
> --
> **********************************************************
> ***
> Bernd Fehling Bielefeld University Library
> Dipl.-Inform. (FH) LibTec - Library Technology
> Universitätsstr. 25 and Knowledge Management
> 33615 Bielefeld
> Tel. +49 521 106-4060 bernd.fehling(at)uni-bielefeld.de
>
> BASE - Bielefeld Academic Search Engine - www.base-search.net
> **********************************************************
> ***
>
>
> _______________________________________________
> Handle-Info mailing list
> Handle-Info@cnri.reston.va.us
> http://www.handle.net/mailman/listinfo/handle-info
_______________________________________________
Handle-Info mailing list
Handle-Info@cnri.reston.va.us
http://www.handle.net/mailman/listinfo/handle-info