Mercurial > dive4elements > river
annotate flys-client/src/main/java/de/intevation/flys/client/server/FileUploadServiceImpl.java @ 4324:4980659b2f22
Add gauge name to the measurement station xml response
The reference gauge should be displayed in the measurement station info panel.
Therefore the artifact service must return the name of the gauge.
| author | Björn Ricks <bjoern.ricks@intevation.de> |
|---|---|
| date | Tue, 30 Oct 2012 12:49:17 +0100 |
| parents | b9433322fcaf |
| children | 02cf2b1dff84 |
| 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; |
|
2954
b9433322fcaf
Add alpha transp. and fix exceptions on unknown style attributes.
Christian Lins <christian.lins@intevation.de>
parents:
2497
diff
changeset
|
4 import de.intevation.artifacts.common.utils.XMLUtils.ElementCreator; |
|
2497
a6c6f305546c
Removed superfluous imports.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
2494
diff
changeset
|
5 import de.intevation.artifacts.httpclient.exceptions.ConnectionException; |
|
a6c6f305546c
Removed superfluous imports.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
2494
diff
changeset
|
6 import de.intevation.artifacts.httpclient.http.HttpClient; |
|
a6c6f305546c
Removed superfluous imports.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
2494
diff
changeset
|
7 import de.intevation.artifacts.httpclient.http.HttpClientImpl; |
|
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 java.io.ByteArrayOutputStream; |
|
a6c6f305546c
Removed superfluous imports.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
2494
diff
changeset
|
10 import java.io.InputStream; |
| 2494 | 11 |
| 12 import javax.servlet.http.HttpServlet; | |
| 13 import javax.servlet.http.HttpServletRequest; | |
| 14 import javax.servlet.http.HttpServletResponse; | |
| 15 | |
|
2497
a6c6f305546c
Removed superfluous imports.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
2494
diff
changeset
|
16 import org.apache.commons.codec.binary.Base64; |
|
a6c6f305546c
Removed superfluous imports.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
2494
diff
changeset
|
17 import org.apache.commons.fileupload.FileItemIterator; |
|
a6c6f305546c
Removed superfluous imports.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
2494
diff
changeset
|
18 import org.apache.commons.fileupload.FileItemStream; |
|
a6c6f305546c
Removed superfluous imports.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
2494
diff
changeset
|
19 import org.apache.commons.fileupload.servlet.ServletFileUpload; |
|
a6c6f305546c
Removed superfluous imports.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
2494
diff
changeset
|
20 import org.apache.log4j.Logger; |
|
a6c6f305546c
Removed superfluous imports.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
2494
diff
changeset
|
21 import org.w3c.dom.Document; |
|
a6c6f305546c
Removed superfluous imports.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
2494
diff
changeset
|
22 import org.w3c.dom.Element; |
| 2494 | 23 |
| 24 public class FileUploadServiceImpl | |
| 25 extends HttpServlet | |
| 26 { | |
| 27 private static final Logger logger = Logger.getLogger(FileUploadServiceImpl.class); | |
| 28 | |
| 29 @Override | |
| 30 protected void doPost(HttpServletRequest req, HttpServletResponse resp) { | |
| 31 processPost(req, resp); | |
| 32 } | |
| 33 | |
| 34 | |
| 35 protected void processPost(HttpServletRequest req, HttpServletResponse resp) { | |
| 36 logger.debug("handling post request."); | |
| 37 | |
| 38 String url = getServletContext().getInitParameter("server-url"); | |
| 39 | |
| 40 Document request = createFileXML(req);; | |
| 41 | |
| 42 if (request == null) { | |
| 43 return; | |
| 44 } | |
| 45 HttpClient client = new HttpClientImpl(url); | |
| 46 | |
| 47 try { | |
| 48 Document result = client.callService(url, "fileupload", request); | |
| 49 | |
| 50 if (result == null) { | |
| 51 logger.warn("FileUpload service returned no result."); | |
| 52 } | |
| 53 | |
| 54 return; | |
| 55 } | |
| 56 catch (ConnectionException ce) { | |
| 57 logger.error(ce, ce); | |
| 58 } | |
| 59 } | |
| 60 | |
| 61 | |
| 62 protected Document createFileXML(HttpServletRequest req) { | |
| 63 ServletFileUpload upload = new ServletFileUpload(); | |
| 64 | |
| 65 try{ | |
| 66 FileItemIterator iter = upload.getItemIterator(req); | |
| 67 | |
| 68 while (iter.hasNext()) { | |
| 69 FileItemStream item = iter.next(); | |
| 70 | |
| 71 String name = item.getFieldName(); | |
| 72 InputStream stream = item.openStream(); | |
| 73 | |
| 74 // Process the input stream | |
| 75 ByteArrayOutputStream out = new ByteArrayOutputStream(); | |
| 76 int len; | |
| 77 byte[] buffer = new byte[stream.available()]; | |
| 78 while ((len = stream.read(buffer, 0, buffer.length)) != -1) { | |
| 79 out.write(buffer, 0, len); | |
| 80 } | |
| 81 | |
|
2954
b9433322fcaf
Add alpha transp. and fix exceptions on unknown style attributes.
Christian Lins <christian.lins@intevation.de>
parents:
2497
diff
changeset
|
82 buffer = Base64.encodeBase64(buffer); |
|
b9433322fcaf
Add alpha transp. and fix exceptions on unknown style attributes.
Christian Lins <christian.lins@intevation.de>
parents:
2497
diff
changeset
|
83 String b64File = new String(buffer); |
| 2494 | 84 |
| 85 Document fileDoc = XMLUtils.newDocument(); | |
| 86 | |
| 87 ElementCreator ec = new ElementCreator(fileDoc, null, null); | |
| 88 Element root = ec.create("upload"); | |
| 89 Element id = ec.create("artifact-uuid"); | |
| 90 id.setTextContent(req.getParameter("uuid")); | |
| 91 | |
| 92 Element data = ec.create("data"); | |
| 93 data.setTextContent(b64File); | |
| 94 | |
| 95 fileDoc.appendChild(root); | |
| 96 root.appendChild(id); | |
| 97 root.appendChild(data); | |
| 98 | |
| 99 return fileDoc; | |
| 100 } | |
| 101 } | |
| 102 catch(Exception e){ | |
| 103 logger.debug("Failed to create xml document containing the file."); | |
| 104 logger.debug(e, e); | |
| 105 } | |
| 106 return null; | |
| 107 } | |
| 108 } |