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1 package de.mpiwg.itgroup.escidoc.MPIWGServices.Restlet.services.redirect;
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2
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3 import java.io.IOException;
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4 import java.io.InputStream;
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5 import java.util.Properties;
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6
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7 import org.apache.http.HttpResponse;
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8 import org.jdom.Attribute;
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9 import org.jdom.Document;
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10 import org.jdom.Element;
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11 import org.jdom.JDOMException;
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12 import org.jdom.input.SAXBuilder;
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13 import org.jdom.xpath.XPath;
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14 import org.restlet.data.Status;
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15 import org.restlet.representation.Representation;
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16 import org.restlet.representation.StringRepresentation;
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17 import org.restlet.resource.Get;
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18 import org.restlet.resource.ServerResource;
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19
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20 import de.mpiwg.itgroup.eSciDoc.Tools.EScidocBasicHandler;
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21 import de.mpiwg.itgroup.eSciDoc.Tools.EScidocTools;
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22 import de.mpiwg.itgroup.eSciDoc.echoObjects.ECHORessource;
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23
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24
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25 public class DigilibRedirector extends ServerResource{
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26
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27 private String eScidocServer;
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28 private String eScidocPort;
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29 private String digilibPath;
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30 private String eScidocUser;
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31 private String eScidocUserPW;
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32 public DigilibRedirector() throws IOException{
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33 InputStream is = getClass().getResourceAsStream("/de/mpiwg/itgroup/escidoc/MPIWGServices/Restlet/config/eScidocServer.config");
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34 Properties prop = new Properties();
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35 prop.load(is);
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36 eScidocServer= (String)prop.get("eScidocServer");
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37 eScidocPort=(String)prop.get("eScidocPort");
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38 digilibPath=(String)prop.get("digilibPath");
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39 eScidocUser=(String)prop.get("eScidocUser");
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40 eScidocUserPW=(String)prop.get("eScidocUserPW");
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41
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42 }
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43 @Get("html")
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44 public Representation getHtml()
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45 {
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46 String id = (String)getRequest().getAttributes().get("escidocId");
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47 EScidocBasicHandler handler = null;
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48 if (getContext().getAttributes().containsKey("escidocHandler")){
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49 handler = (EScidocBasicHandler) getContext().getAttributes().get("escidocHandler");
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50 }
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51
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52 if (handler==null){
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53 handler = new EScidocBasicHandler(eScidocServer, Integer.valueOf(eScidocPort),eScidocUser,eScidocUserPW);
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54 }
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55
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56
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57 HttpResponse resp;
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58 try {
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59 resp = handler.eScidocGet("/ir/item/"+id);
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60 } catch (IOException e) {
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61 setStatus(Status.SERVER_ERROR_INTERNAL);
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62 return new StringRepresentation("<html><body>error1</body></html>");
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63 }
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64 int code = resp.getStatusLine().getStatusCode();
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65 if (code!=200){
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66 setStatus(new Status(code));
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67 return new StringRepresentation("<html><body>error2</body></html>");
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68
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69 }
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70
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71 Document doc;
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72 String path;
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73 try {
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74 doc = new SAXBuilder().build(resp.getEntity().getContent());
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75
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76
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77 XPath xp= EScidocTools.getESciDocXpath("//metadataRecords:md-record[@xlink:title='mpiwg-admin']/mpiwg:admin/mpiwg:imageFolder");
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78 Element item = (Element)xp.selectSingleNode(doc);
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79 path = item.getTextTrim();
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80 path= ECHORessource.correct(path); // nur pfad nach online
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81 } catch (Exception e) {
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82 setStatus(Status.SERVER_ERROR_INTERNAL);
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83 return new StringRepresentation("<html><body>error3</body></html>");
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84 }
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85
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86
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87 StringRepresentation repr = new StringRepresentation(digilibPath+path);
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88 getResponse().redirectPermanent(digilibPath+path);
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89 return repr;
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90 }
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91 }
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