Mercurial > hg > eSciDocMPIWGServicesRestlet
view src/de/mpiwg/itgroup/escidoc/MPIWGServices/Restlet/services/redirect/DigilibRedirector.java @ 0:1aac45997235
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author | dwinter |
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date | Wed, 01 Dec 2010 17:35:51 +0100 |
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package de.mpiwg.itgroup.escidoc.MPIWGServices.Restlet.services.redirect; import java.io.IOException; import java.io.InputStream; import java.util.Properties; import org.apache.http.HttpResponse; import org.jdom.Attribute; import org.jdom.Document; import org.jdom.Element; import org.jdom.JDOMException; import org.jdom.input.SAXBuilder; import org.jdom.xpath.XPath; import org.restlet.data.Status; import org.restlet.representation.Representation; import org.restlet.representation.StringRepresentation; import org.restlet.resource.Get; import org.restlet.resource.ServerResource; import de.mpiwg.itgroup.eSciDoc.Tools.EScidocBasicHandler; import de.mpiwg.itgroup.eSciDoc.Tools.EScidocTools; import de.mpiwg.itgroup.eSciDoc.echoObjects.ECHORessource; public class DigilibRedirector extends ServerResource{ private String eScidocServer; private String eScidocPort; private String digilibPath; private String eScidocUser; private String eScidocUserPW; public DigilibRedirector() throws IOException{ InputStream is = getClass().getResourceAsStream("/de/mpiwg/itgroup/escidoc/MPIWGServices/Restlet/config/eScidocServer.config"); Properties prop = new Properties(); prop.load(is); eScidocServer= (String)prop.get("eScidocServer"); eScidocPort=(String)prop.get("eScidocPort"); digilibPath=(String)prop.get("digilibPath"); eScidocUser=(String)prop.get("eScidocUser"); eScidocUserPW=(String)prop.get("eScidocUserPW"); } @Get("html") public Representation getHtml() { String id = (String)getRequest().getAttributes().get("escidocId"); EScidocBasicHandler handler = null; if (getContext().getAttributes().containsKey("escidocHandler")){ handler = (EScidocBasicHandler) getContext().getAttributes().get("escidocHandler"); } if (handler==null){ handler = new EScidocBasicHandler(eScidocServer, Integer.valueOf(eScidocPort),eScidocUser,eScidocUserPW); } HttpResponse resp; try { resp = handler.eScidocGet("/ir/item/"+id); } catch (IOException e) { setStatus(Status.SERVER_ERROR_INTERNAL); return new StringRepresentation("<html><body>error1</body></html>"); } int code = resp.getStatusLine().getStatusCode(); if (code!=200){ setStatus(new Status(code)); return new StringRepresentation("<html><body>error2</body></html>"); } Document doc; String path; try { doc = new SAXBuilder().build(resp.getEntity().getContent()); XPath xp= EScidocTools.getESciDocXpath("//metadataRecords:md-record[@xlink:title='mpiwg-admin']/mpiwg:admin/mpiwg:imageFolder"); Element item = (Element)xp.selectSingleNode(doc); path = item.getTextTrim(); path= ECHORessource.correct(path); // nur pfad nach online } catch (Exception e) { setStatus(Status.SERVER_ERROR_INTERNAL); return new StringRepresentation("<html><body>error3</body></html>"); } StringRepresentation repr = new StringRepresentation(digilibPath+path); getResponse().redirectPermanent(digilibPath+path); return repr; } }