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1 package com.genimen.djeneric.web.controller;
2
3 import java.io.IOException  ;
4 import java.io.InputStream ;
5 import java.util.Iterator ;
6 import java.util.List ;
7 import java.util.TreeMap ;
8
9 import javax.servlet.ServletException ;
10 import javax.servlet.http.HttpServletRequest ;
11 import javax.servlet.http.HttpServletResponse ;
12 import javax.xml.parsers.FactoryConfigurationError ;
13 import javax.xml.parsers.ParserConfigurationException ;
14 import javax.xml.transform.TransformerException ;
15
16 import org.apache.commons.fileupload.DiskFileUpload;
17 import org.apache.commons.fileupload.FileItem;
18 import org.apache.commons.fileupload.FileUploadException;
19 import org.w3c.dom.Document ;
20 import org.xml.sax.SAXException ;
21
22 import com.genimen.djeneric.repository.DjSession;
23 import com.genimen.djeneric.repository.DjUid;
24 import com.genimen.djeneric.repository.exceptions.DjenericException;
25 import com.genimen.djeneric.repository.util.DjObjectImporter;
26 import com.genimen.djeneric.web.renderers.ImportRenderer;
27 import com.genimen.djeneric.web.util.DjenericSessionManager;
28 import com.genimen.djeneric.web.util.DjenericXSLTransform;
29
30 public class ImportCommand
31 {
32 ImportRenderer _renderer = new ImportRenderer();
33
34 public void get(DjenericSessionManager sessionManager, HttpServletRequest request, HttpServletResponse response)
35 throws IOException , ServletException , FactoryConfigurationError , ParserConfigurationException
36 {
37 response.setContentType("text/html; charset=UTF-8");
38
39 DjenericXSLTransform xsl = sessionManager.getTransformer();
40 Document doc = _renderer.asXml();
41 String page = xsl.transform(doc, "util/import.xsl");
42 response.getWriter().print(page);
43 }
44
45 public void post(DjenericSessionManager sessionManager, HttpServletRequest request, HttpServletResponse response)
46 throws FileUploadException, SAXException , IOException , ParserConfigurationException , TransformerException ,
47 DjenericException, ServletException
48 {
49 response.setContentType("text/html; charset=UTF-8");
50
51 DiskFileUpload fu = new DiskFileUpload();
52 fu.setSizeMax(1000000);
54 fu.setSizeThreshold(4096);
56 fu.setRepositoryPath(System.getProperty("java.io.tmpdir"));
58
59 boolean shouldMerge = "true".equalsIgnoreCase(request.getParameter("merge"));
60
61 List fileItems = fu.parseRequest(request);
62
63 Iterator it = fileItems.iterator();
64 TreeMap result = new TreeMap ();
65
66 while (it.hasNext())
67 {
68 FileItem fi = (FileItem) it.next();
69 String comment = fi.getString();
70 String fieldName = fi.getFieldName();
71 if ("file".equalsIgnoreCase(fieldName))
72 {
73 DjUid[] unresolved = importDump(sessionManager, fi, shouldMerge);
74 result.put(fi.getName(), unresolved);
75 }
76 }
77
78 DjenericXSLTransform xsl = sessionManager.getTransformer();
79 Document doc = _renderer.asXml(result);
80 String page = xsl.transform(doc, "util/importresult.xsl");
81 response.getWriter().print(page);
82 }
83
84 protected DjUid[] importDump(DjenericSessionManager sessionManager, FileItem fi, boolean shouldMerge)
85 throws SAXException , IOException , ParserConfigurationException , TransformerException , DjenericException
86 {
87 boolean aborted = false;
88
89 DjSession session = sessionManager.createSession();
90 try
91 {
92 InputStream is = fi.getInputStream();
93 DjObjectImporter importer = new DjObjectImporter(session);
94 importer.load(fi.getInputStream(), shouldMerge);
95 DjUid[] unresolved = importer.resolve();
96 if (unresolved.length == 0)
97 {
98 importer.apply();
99 session.close();
100 }
101
102 return unresolved;
103 }
104 finally
105 {
106 session.close();
107 }
108
109 }
110
111 }
112 |
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