Mercurial > dive4elements > river
view flys-client/src/main/java/de/intevation/flys/client/server/ChartOutputServiceImpl.java @ 5622:b28a6d05e969
Add a new mechanism in mapfish print call to add arbitary data maps
Data properties are identified by starting with mapfish-data
and they are then split in info value pairs where info
can be the description of the information and value the value
of the information to be transported in the data map.
author | Andre Heinecke <aheinecke@intevation.de> |
---|---|
date | Tue, 09 Apr 2013 19:04:32 +0200 |
parents | 2867a0192aed |
children |
line wrap: on
line source
package de.intevation.flys.client.server; import java.io.OutputStream; import java.io.IOException; import java.util.HashMap; import java.util.Map; import org.w3c.dom.Document; import org.apache.log4j.Logger; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import de.intevation.artifacts.common.utils.ClientProtocolUtils; import de.intevation.artifacts.httpclient.http.HttpClient; import de.intevation.artifacts.httpclient.http.HttpClientImpl; /** * This service is used to request a chart from the artifact server. The * response is directed directly to the output stream, so the image that is * retrieved is displayed in the UI afterwards. * * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a> */ public class ChartOutputServiceImpl extends HttpServlet { private static final Logger logger = Logger.getLogger(ChartOutputServiceImpl.class); public void doGet(HttpServletRequest req, HttpServletResponse resp) { logger.info("ChartOutputServiceImpl.doGet"); try { OutputStream out = resp.getOutputStream(); String url = getServletContext().getInitParameter("server-url"); String uuid = req.getParameter("uuid"); String type = req.getParameter("type"); String locale = req.getParameter("locale"); prepareHeader(req, resp); Document request = ClientProtocolUtils.newOutCollectionDocument( uuid, type, type, ChartServiceHelper.getChartAttributes(prepareChartAttributes(req))); HttpClient client = new HttpClientImpl(url, locale); client.collectionOut(request, uuid, "chart", out); out.close(); out.flush(); } catch (IOException ioe) { logger.error(ioe, ioe); } catch (Exception e) { logger.error(e, e); } } protected Map<String, String> prepareChartAttributes(HttpServletRequest req) { Map<String, String> attr = new HashMap<String, String>(); Map params = req.getParameterMap(); attr.put("width", req.getParameter("width")); attr.put("height", req.getParameter("height")); attr.put("minx", req.getParameter("minx")); attr.put("maxx", req.getParameter("maxx")); attr.put("miny", req.getParameter("miny")); attr.put("maxy", req.getParameter("maxy")); attr.put("format", req.getParameter("format")); attr.put("km", req.getParameter("currentKm")); if (logger.isDebugEnabled()) { logger.debug("====== ZOOM VALUES ======="); logger.debug(" min x: " + req.getParameter("minx")); logger.debug(" max x: " + req.getParameter("maxx")); logger.debug(" min y: " + req.getParameter("miny")); logger.debug(" max y: " + req.getParameter("maxy")); } return attr; } protected void prepareHeader( HttpServletRequest req, HttpServletResponse resp ) { String export = req.getParameter("export"); if (export != null && export.equals("true")) { String format = req.getParameter("format"); if (format == null || format.length() == 0) { format = "png"; } String fn = "chart_export" + getFileExtension(format); resp.setHeader("Content-Disposition", "attachment;filename=" + fn); resp.setHeader("Content-Type", getMimeType(format)); } } protected String getFileExtension(String format) { if (format.equals("png")) { return ".png"; } else if (format.equals("pdf")) { return ".pdf"; } else if (format.equals("svg")) { return ".svg"; } else if (format.equals("csv")) { return ".csv"; } return ".png"; } protected String getMimeType(String format) { if (format.equals("png")) { return "image/png"; } else if (format.equals("pdf")) { return "application/pdf"; } else if (format.equals("svg")) { return "svg+xml"; } else if (format.equals("csv")) { return "text/plain"; } return "image/png"; } } // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :