Mercurial > dive4elements > river
view gwt-client/src/main/java/org/dive4elements/river/client/server/FileUploadServiceImpl.java @ 6135:804e50149d6a
Print the complete collection in parseCollection
This can be extremly helpful as it allows you to debug the full
state of a collection
author | Andre Heinecke <aheinecke@intevation.de> |
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date | Fri, 31 May 2013 15:19:32 +0200 |
parents | 97d055c24ad4 |
children | 238fc722f87a |
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/* Copyright (C) 2011, 2012, 2013 by Bundesanstalt für Gewässerkunde * Software engineering by Intevation GmbH * * This file is Free Software under the GNU AGPL (>=v3) * and comes with ABSOLUTELY NO WARRANTY! Check out the * documentation coming with Dive4Elements River for details. */ package org.dive4elements.river.client.server; import org.dive4elements.artifacts.common.utils.XMLUtils; import org.dive4elements.artifacts.common.utils.XMLUtils.ElementCreator; import org.dive4elements.artifacts.httpclient.exceptions.ConnectionException; import org.dive4elements.artifacts.httpclient.http.HttpClient; import org.dive4elements.artifacts.httpclient.http.HttpClientImpl; import java.io.ByteArrayOutputStream; import java.io.IOException; import java.io.InputStream; import java.io.PrintWriter; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.apache.commons.codec.binary.Base64; import org.apache.commons.fileupload.FileItemIterator; import org.apache.commons.fileupload.FileItemStream; import org.apache.commons.fileupload.servlet.ServletFileUpload; import org.apache.log4j.Logger; import org.w3c.dom.Document; import org.w3c.dom.Element; public class FileUploadServiceImpl extends HttpServlet { private static final Logger logger = Logger.getLogger(FileUploadServiceImpl.class); @Override protected void doPost(HttpServletRequest req, HttpServletResponse resp) { logger.debug("handling post request."); String url = getServletContext().getInitParameter("server-url"); Document request = createFileXML(req); if (request == null) { return; } HttpClient client = new HttpClientImpl(url); try { Document result = client.callService(url, "fileupload", request); resp.setContentType("text/html"); PrintWriter respWriter = resp.getWriter(); respWriter.write("<html><body><div style='font-face: Arial,Verdana,sans-serif; font-size: 11px'>"); if (result == null) { logger.warn("FileUpload service returned no result."); respWriter.write("FileUpload service returned no result"); } else { String status = result.getElementsByTagName("status") .item(0).getTextContent(); respWriter.write(status); } respWriter.write("</div></body></html>"); respWriter.flush(); return; } catch (ConnectionException ce) { logger.error(ce, ce); } catch (IOException e) { logger.error(e, e); } } protected Document createFileXML(HttpServletRequest req) { ServletFileUpload upload = new ServletFileUpload(); try{ FileItemIterator iter = upload.getItemIterator(req); while (iter.hasNext()) { FileItemStream item = iter.next(); InputStream stream = item.openStream(); // Process the input stream ByteArrayOutputStream out = new ByteArrayOutputStream(); int len, cnt = 0; byte[] buffer = new byte[stream.available()]; while ((len = stream.read(buffer, 0, buffer.length)) != -1) { out.write(buffer, 0, len); cnt += len; } buffer = Base64.encodeBase64(out.toByteArray()); String b64File = new String(buffer); logger.debug("FileUploadServiceImpl.createFileXML(): " + cnt + "/" + b64File.length() + " bytes (orig/base64) file to be uploaded"); Document fileDoc = XMLUtils.newDocument(); ElementCreator ec = new ElementCreator(fileDoc, null, null); Element root = ec.create("upload"); Element id = ec.create("artifact-uuid"); id.setTextContent(req.getParameter("uuid")); Element data = ec.create("data"); data.setTextContent(b64File); fileDoc.appendChild(root); root.appendChild(id); root.appendChild(data); return fileDoc; } } catch(Exception e){ logger.debug("Failed to create xml document containing the file."); logger.debug(e, e); } return null; } }