Mercurial > hg > eSciDocMPIWGServicesRestlet

comparison src/de/mpiwg/itgroup/escidoc/MPIWGServices/Restlet/services/redirect/DigilibRedirector.java @ 0:1aac45997235

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author dwinter
date Wed, 01 Dec 2010 17:35:51 +0100
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-1:000000000000 0:1aac45997235
1 package de.mpiwg.itgroup.escidoc.MPIWGServices.Restlet.services.redirect;
2
3 import java.io.IOException;
4 import java.io.InputStream;
5 import java.util.Properties;
6
7 import org.apache.http.HttpResponse;
8 import org.jdom.Attribute;
9 import org.jdom.Document;
10 import org.jdom.Element;
11 import org.jdom.JDOMException;
12 import org.jdom.input.SAXBuilder;
13 import org.jdom.xpath.XPath;
14 import org.restlet.data.Status;
15 import org.restlet.representation.Representation;
16 import org.restlet.representation.StringRepresentation;
17 import org.restlet.resource.Get;
18 import org.restlet.resource.ServerResource;
19
20 import de.mpiwg.itgroup.eSciDoc.Tools.EScidocBasicHandler;
21 import de.mpiwg.itgroup.eSciDoc.Tools.EScidocTools;
22 import de.mpiwg.itgroup.eSciDoc.echoObjects.ECHORessource;
23
24
25 public class DigilibRedirector extends ServerResource{
26
27 private String eScidocServer;
28 private String eScidocPort;
29 private String digilibPath;
30 private String eScidocUser;
31 private String eScidocUserPW;
32 public DigilibRedirector() throws IOException{
33 InputStream is = getClass().getResourceAsStream("/de/mpiwg/itgroup/escidoc/MPIWGServices/Restlet/config/eScidocServer.config");
34 Properties prop = new Properties();
35 prop.load(is);
36 eScidocServer= (String)prop.get("eScidocServer");
37 eScidocPort=(String)prop.get("eScidocPort");
38 digilibPath=(String)prop.get("digilibPath");
39 eScidocUser=(String)prop.get("eScidocUser");
40 eScidocUserPW=(String)prop.get("eScidocUserPW");
41
42 }
43 @Get("html")
44 public Representation getHtml()
45 {
46 String id = (String)getRequest().getAttributes().get("escidocId");
47 EScidocBasicHandler handler = null;
48 if (getContext().getAttributes().containsKey("escidocHandler")){
49 handler = (EScidocBasicHandler) getContext().getAttributes().get("escidocHandler");
50 }
51
52 if (handler==null){
53 handler = new EScidocBasicHandler(eScidocServer, Integer.valueOf(eScidocPort),eScidocUser,eScidocUserPW);
54 }
55
56
57 HttpResponse resp;
58 try {
59 resp = handler.eScidocGet("/ir/item/"+id);
60 } catch (IOException e) {
61 setStatus(Status.SERVER_ERROR_INTERNAL);
62 return new StringRepresentation("<html><body>error1</body></html>");
63 }
64 int code = resp.getStatusLine().getStatusCode();
65 if (code!=200){
66 setStatus(new Status(code));
67 return new StringRepresentation("<html><body>error2</body></html>");
68
69 }
70
71 Document doc;
72 String path;
73 try {
74 doc = new SAXBuilder().build(resp.getEntity().getContent());
75
76
77 XPath xp= EScidocTools.getESciDocXpath("//metadataRecords:md-record[@xlink:title='mpiwg-admin']/mpiwg:admin/mpiwg:imageFolder");
78 Element item = (Element)xp.selectSingleNode(doc);
79 path = item.getTextTrim();
80 path= ECHORessource.correct(path); // nur pfad nach online
81 } catch (Exception e) {
82 setStatus(Status.SERVER_ERROR_INTERNAL);
83 return new StringRepresentation("<html><body>error3</body></html>");
84 }
85
86
87 StringRepresentation repr = new StringRepresentation(digilibPath+path);
88 getResponse().redirectPermanent(digilibPath+path);
89 return repr;
90 }
91 }