Mercurial > dive4elements > river
annotate flys-client/src/main/java/de/intevation/flys/client/server/FileUploadServiceImpl.java @ 2508:4aa70825bde1
map print: generate valid url to access service.
flys-client/trunk@4363 c6561f87-3c4e-4783-a992-168aeb5c3f6f
| author | Sascha L. Teichmann <sascha.teichmann@intevation.de> |
|---|---|
| date | Wed, 09 May 2012 11:18:24 +0000 |
| parents | a6c6f305546c |
| children | b9433322fcaf |
| rev | line source |
|---|---|
| 2494 | 1 package de.intevation.flys.client.server; |
| 2 | |
|
2497
a6c6f305546c
Removed superfluous imports.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
2494
diff
changeset
|
3 import de.intevation.artifacts.common.utils.XMLUtils.ElementCreator; |
| 2494 | 4 |
|
2497
a6c6f305546c
Removed superfluous imports.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
2494
diff
changeset
|
5 import de.intevation.artifacts.common.utils.XMLUtils; |
| 2494 | 6 |
|
2497
a6c6f305546c
Removed superfluous imports.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
2494
diff
changeset
|
7 import de.intevation.artifacts.httpclient.exceptions.ConnectionException; |
|
a6c6f305546c
Removed superfluous imports.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
2494
diff
changeset
|
8 |
|
a6c6f305546c
Removed superfluous imports.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
2494
diff
changeset
|
9 import de.intevation.artifacts.httpclient.http.HttpClient; |
|
a6c6f305546c
Removed superfluous imports.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
2494
diff
changeset
|
10 import de.intevation.artifacts.httpclient.http.HttpClientImpl; |
|
a6c6f305546c
Removed superfluous imports.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
2494
diff
changeset
|
11 |
|
a6c6f305546c
Removed superfluous imports.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
2494
diff
changeset
|
12 import java.io.ByteArrayOutputStream; |
|
a6c6f305546c
Removed superfluous imports.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
2494
diff
changeset
|
13 import java.io.InputStream; |
| 2494 | 14 |
| 15 import javax.servlet.http.HttpServlet; | |
| 16 import javax.servlet.http.HttpServletRequest; | |
| 17 import javax.servlet.http.HttpServletResponse; | |
| 18 | |
|
2497
a6c6f305546c
Removed superfluous imports.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
2494
diff
changeset
|
19 import org.apache.commons.codec.binary.Base64; |
| 2494 | 20 |
|
2497
a6c6f305546c
Removed superfluous imports.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
2494
diff
changeset
|
21 import org.apache.commons.fileupload.FileItemIterator; |
|
a6c6f305546c
Removed superfluous imports.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
2494
diff
changeset
|
22 import org.apache.commons.fileupload.FileItemStream; |
| 2494 | 23 |
|
2497
a6c6f305546c
Removed superfluous imports.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
2494
diff
changeset
|
24 import org.apache.commons.fileupload.servlet.ServletFileUpload; |
|
a6c6f305546c
Removed superfluous imports.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
2494
diff
changeset
|
25 |
|
a6c6f305546c
Removed superfluous imports.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
2494
diff
changeset
|
26 import org.apache.log4j.Logger; |
|
a6c6f305546c
Removed superfluous imports.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
2494
diff
changeset
|
27 |
|
a6c6f305546c
Removed superfluous imports.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
2494
diff
changeset
|
28 import org.w3c.dom.Document; |
|
a6c6f305546c
Removed superfluous imports.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
2494
diff
changeset
|
29 import org.w3c.dom.Element; |
| 2494 | 30 |
| 31 public class FileUploadServiceImpl | |
| 32 extends HttpServlet | |
| 33 { | |
| 34 private static final Logger logger = Logger.getLogger(FileUploadServiceImpl.class); | |
| 35 | |
| 36 @Override | |
| 37 protected void doPost(HttpServletRequest req, HttpServletResponse resp) { | |
| 38 processPost(req, resp); | |
| 39 } | |
| 40 | |
| 41 | |
| 42 protected void processPost(HttpServletRequest req, HttpServletResponse resp) { | |
| 43 logger.debug("handling post request."); | |
| 44 | |
| 45 String url = getServletContext().getInitParameter("server-url"); | |
| 46 | |
| 47 Document request = createFileXML(req);; | |
| 48 | |
| 49 if (request == null) { | |
| 50 return; | |
| 51 } | |
| 52 HttpClient client = new HttpClientImpl(url); | |
| 53 | |
| 54 try { | |
| 55 Document result = client.callService(url, "fileupload", request); | |
| 56 | |
| 57 if (result == null) { | |
| 58 logger.warn("FileUpload service returned no result."); | |
| 59 } | |
| 60 | |
| 61 return; | |
| 62 } | |
| 63 catch (ConnectionException ce) { | |
| 64 logger.error(ce, ce); | |
| 65 } | |
| 66 } | |
| 67 | |
| 68 | |
| 69 protected Document createFileXML(HttpServletRequest req) { | |
| 70 ServletFileUpload upload = new ServletFileUpload(); | |
| 71 | |
| 72 try{ | |
| 73 FileItemIterator iter = upload.getItemIterator(req); | |
| 74 | |
| 75 while (iter.hasNext()) { | |
| 76 FileItemStream item = iter.next(); | |
| 77 | |
| 78 String name = item.getFieldName(); | |
| 79 InputStream stream = item.openStream(); | |
| 80 | |
| 81 | |
| 82 // Process the input stream | |
| 83 ByteArrayOutputStream out = new ByteArrayOutputStream(); | |
| 84 int len; | |
| 85 byte[] buffer = new byte[stream.available()]; | |
| 86 while ((len = stream.read(buffer, 0, buffer.length)) != -1) { | |
| 87 out.write(buffer, 0, len); | |
| 88 } | |
| 89 | |
| 90 Base64 encoder = new Base64(); | |
| 91 String b64File = Base64.encodeBase64String(buffer); | |
| 92 | |
| 93 Document fileDoc = XMLUtils.newDocument(); | |
| 94 | |
| 95 ElementCreator ec = new ElementCreator(fileDoc, null, null); | |
| 96 Element root = ec.create("upload"); | |
| 97 Element id = ec.create("artifact-uuid"); | |
| 98 id.setTextContent(req.getParameter("uuid")); | |
| 99 | |
| 100 Element data = ec.create("data"); | |
| 101 data.setTextContent(b64File); | |
| 102 | |
| 103 fileDoc.appendChild(root); | |
| 104 root.appendChild(id); | |
| 105 root.appendChild(data); | |
| 106 | |
| 107 return fileDoc; | |
| 108 } | |
| 109 } | |
| 110 catch(Exception e){ | |
| 111 logger.debug("Failed to create xml document containing the file."); | |
| 112 logger.debug(e, e); | |
| 113 } | |
| 114 return null; | |
| 115 } | |
| 116 } |