Mercurial > dive4elements > river
comparison flys-client/src/main/java/org/dive4elements/river/client/server/FileUploadServiceImpl.java @ 5834:f507086aa94b
Repaired internal references.
author | Sascha L. Teichmann <teichmann@intevation.de> |
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date | Thu, 25 Apr 2013 12:31:32 +0200 |
parents | flys-client/src/main/java/de/intevation/flys/client/server/FileUploadServiceImpl.java@04ccec566689 |
children | 821a02bbfb4e |
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5833:a2bdc0f524e8 | 5834:f507086aa94b |
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1 package de.intevation.flys.client.server; | |
2 | |
3 import de.intevation.artifacts.common.utils.XMLUtils; | |
4 import de.intevation.artifacts.common.utils.XMLUtils.ElementCreator; | |
5 import de.intevation.artifacts.httpclient.exceptions.ConnectionException; | |
6 import de.intevation.artifacts.httpclient.http.HttpClient; | |
7 import de.intevation.artifacts.httpclient.http.HttpClientImpl; | |
8 | |
9 import java.io.ByteArrayOutputStream; | |
10 import java.io.IOException; | |
11 import java.io.InputStream; | |
12 import java.io.PrintWriter; | |
13 | |
14 import javax.servlet.http.HttpServlet; | |
15 import javax.servlet.http.HttpServletRequest; | |
16 import javax.servlet.http.HttpServletResponse; | |
17 | |
18 import org.apache.commons.codec.binary.Base64; | |
19 import org.apache.commons.fileupload.FileItemIterator; | |
20 import org.apache.commons.fileupload.FileItemStream; | |
21 import org.apache.commons.fileupload.servlet.ServletFileUpload; | |
22 import org.apache.log4j.Logger; | |
23 import org.w3c.dom.Document; | |
24 import org.w3c.dom.Element; | |
25 | |
26 public class FileUploadServiceImpl | |
27 extends HttpServlet | |
28 { | |
29 private static final Logger logger = Logger.getLogger(FileUploadServiceImpl.class); | |
30 | |
31 @Override | |
32 protected void doPost(HttpServletRequest req, HttpServletResponse resp) { | |
33 logger.debug("handling post request."); | |
34 | |
35 String url = getServletContext().getInitParameter("server-url"); | |
36 | |
37 Document request = createFileXML(req); | |
38 | |
39 if (request == null) { | |
40 return; | |
41 } | |
42 HttpClient client = new HttpClientImpl(url); | |
43 | |
44 try { | |
45 Document result = client.callService(url, "fileupload", request); | |
46 | |
47 PrintWriter respWriter = resp.getWriter(); | |
48 respWriter.write("<html><link href='FLYS.css' rel='stylesheet' type='text/css'>"); | |
49 respWriter.write("<body><div style='font-face: Arial,Verdana,sans-serif; font-size: 11px'>"); | |
50 | |
51 if (result == null) { | |
52 logger.warn("FileUpload service returned no result."); | |
53 respWriter.write("FileUpload service returned no result"); | |
54 } | |
55 else { | |
56 String status = result.getElementsByTagName("status") | |
57 .item(0).getTextContent(); | |
58 respWriter.write(status); | |
59 } | |
60 | |
61 respWriter.write("</div></body></html>"); | |
62 respWriter.flush(); | |
63 | |
64 return; | |
65 } | |
66 catch (ConnectionException ce) { | |
67 logger.error(ce, ce); | |
68 } | |
69 catch (IOException e) { | |
70 logger.error(e, e); | |
71 } | |
72 } | |
73 | |
74 | |
75 protected Document createFileXML(HttpServletRequest req) { | |
76 ServletFileUpload upload = new ServletFileUpload(); | |
77 | |
78 try{ | |
79 FileItemIterator iter = upload.getItemIterator(req); | |
80 | |
81 while (iter.hasNext()) { | |
82 FileItemStream item = iter.next(); | |
83 InputStream stream = item.openStream(); | |
84 | |
85 // Process the input stream | |
86 ByteArrayOutputStream out = new ByteArrayOutputStream(); | |
87 int len; | |
88 byte[] buffer = new byte[stream.available()]; | |
89 while ((len = stream.read(buffer, 0, buffer.length)) != -1) { | |
90 out.write(buffer, 0, len); | |
91 } | |
92 | |
93 buffer = Base64.encodeBase64(buffer); | |
94 String b64File = new String(buffer); | |
95 | |
96 Document fileDoc = XMLUtils.newDocument(); | |
97 | |
98 ElementCreator ec = new ElementCreator(fileDoc, null, null); | |
99 Element root = ec.create("upload"); | |
100 Element id = ec.create("artifact-uuid"); | |
101 id.setTextContent(req.getParameter("uuid")); | |
102 | |
103 Element data = ec.create("data"); | |
104 data.setTextContent(b64File); | |
105 | |
106 fileDoc.appendChild(root); | |
107 root.appendChild(id); | |
108 root.appendChild(data); | |
109 | |
110 return fileDoc; | |
111 } | |
112 } | |
113 catch(Exception e){ | |
114 logger.debug("Failed to create xml document containing the file."); | |
115 logger.debug(e, e); | |
116 } | |
117 return null; | |
118 } | |
119 } |