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> |
|---|---|
| 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 |
|---|---|
| 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 } |