Mercurial > dive4elements > river
view flys-client/src/main/java/de/intevation/flys/client/server/ReportServiceImpl.java @ 4421:0b0f415203f0
Add new Filter class to change caching
Add new Filter class to avoid caching of GWT nocache files in browsers and http
proxies. The new Filter class NoCacheFilter sets http headers to stop the
proxies and browesers from storing the nocache files.
author | Björn Ricks <bjoern.ricks@intevation.de> |
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date | Tue, 06 Nov 2012 13:32:06 +0100 |
parents | 8975e1dea436 |
children | bafb2e81a14a |
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package de.intevation.flys.client.server; import java.io.InputStream; import java.io.IOException; import org.w3c.dom.Document; import org.w3c.dom.Element; import org.w3c.dom.NodeList; import org.apache.log4j.Logger; import com.google.gwt.user.server.rpc.RemoteServiceServlet; import org.apache.commons.lang.StringEscapeUtils; import de.intevation.flys.client.client.services.ReportService; import de.intevation.artifacts.common.utils.XMLUtils; import de.intevation.artifacts.common.utils.ClientProtocolUtils; import de.intevation.artifacts.httpclient.http.HttpClient; import de.intevation.artifacts.httpclient.http.HttpClientImpl; public class ReportServiceImpl extends RemoteServiceServlet implements ReportService { private static final Logger logger = Logger.getLogger(ReportServiceImpl.class); @Override public String report( String collectionId, String locale, String out ) { logger.info("report: " + collectionId + " " + out); String url = getServletContext().getInitParameter("server-url"); Document request = ClientProtocolUtils.newOutCollectionDocument( collectionId, out, "report"); InputStream in = null; try { HttpClient client = new HttpClientImpl(url, locale); in = client.collectionOut(request, collectionId, out); if (in == null) { logger.debug("report: no report"); return null; } Document report = XMLUtils.parseDocument(in); return buildReport(report); } catch (IOException ioe) { ioe.printStackTrace(); } catch (Exception e) { e.printStackTrace(); } finally { if (in != null) { try { in.close(); } catch (IOException ioe) { } } } return "error processing error report"; } protected static String buildReport(Document document) { NodeList problems = document.getElementsByTagName("problem"); StringBuilder global = new StringBuilder(); StringBuilder kms = new StringBuilder(); for (int i = 0, N = problems.getLength(); i < N; ++i) { Element element = (Element)problems.item(i); String km = element.getAttribute("km"); String msg = element.getTextContent(); if (km.length() > 0) { kms.append("<li><strong>KM ") .append(StringEscapeUtils.escapeHtml(km)) .append("</strong>: ") .append(StringEscapeUtils.escapeHtml(msg)) .append("</li>"); } else { global.append("<li>") .append(StringEscapeUtils.escapeHtml(msg)) .append("</li>"); } } StringBuilder sb = new StringBuilder("<ul>") .append(global) .append(kms) .append("</ul>"); return sb.toString(); } } // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :