Mercurial > dive4elements > river
view flys-client/src/main/java/de/intevation/flys/client/server/CrossSectionKMServiceImpl.java @ 4215:c179cd02177d
Logout the current user
Add code to the logout button to remove the current user from the session and to
redirect the browser window to the login page.
Part of flys/issue916 (Logout: "Abmelden" Knopf mit Funktion belegen)
author | Björn Ricks <bjoern.ricks@intevation.de> |
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date | Tue, 23 Oct 2012 09:59:16 +0200 |
parents | 9115b2a28be1 |
children |
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package de.intevation.flys.client.server; import java.util.ArrayList; import java.util.HashMap; import java.util.Map; import javax.xml.xpath.XPathConstants; 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 de.intevation.artifacts.common.ArtifactNamespaceContext; import de.intevation.artifacts.common.utils.XMLUtils; import de.intevation.artifacts.httpclient.exceptions.ConnectionException; import de.intevation.artifacts.httpclient.http.HttpClient; import de.intevation.artifacts.httpclient.http.HttpClientImpl; import de.intevation.flys.client.shared.exceptions.ServerException; import de.intevation.flys.client.client.services.CrossSectionKMService; /** * Interact with not documented service. */ public class CrossSectionKMServiceImpl extends RemoteServiceServlet implements CrossSectionKMService { private static final Logger logger = Logger.getLogger(CrossSectionKMServiceImpl.class); /** XPath that points to the found cross section measurements. */ public static final String XPATH_CROSS_SECTIONS = "/cross-sections/cross-section"; /** The error message key that is thrown if an error occured while getting * new data. */ public static final String ERROR_GET_CROSS_SECTION = "error_get_cross_section"; /** * Fetches positions (kms) at which measurements for given cross-sections * exists. * * @param data Map of Integer (cross-section-id) to km. * */ public Map<Integer,Double[]> getCrossSectionKMs( String locale, Map<Integer, Double> data, int nNeighbours) throws ServerException { logger.info("CrossSectionKMService.getCrossSectionKMs"); String url = getServletContext().getInitParameter("server-url"); Document doc = XMLUtils.newDocument(); XMLUtils.ElementCreator ec = new XMLUtils.ElementCreator( doc, ArtifactNamespaceContext.NAMESPACE_URI, ArtifactNamespaceContext.NAMESPACE_PREFIX); Element crossSection = ec.create("cross-sections"); doc.appendChild(crossSection); for(Map.Entry<Integer, Double> oneCrossSection : data.entrySet()) { Element cs = ec.create("cross-section"); cs.setAttribute("id", oneCrossSection.getKey().toString()); cs.setAttribute("km", oneCrossSection.getValue().toString()); cs.setAttribute("n", Integer.valueOf(nNeighbours).toString()); crossSection.appendChild(cs); } HttpClient client = new HttpClientImpl(url, locale); logger.debug("Created httpclient"); try { // Document should contain: // crosse-sections: // attribute(id), attribute(km) attribute(n) Document response = client.callService(url, "cross-section-km", doc); //<cross-sections><cross-section id="1"><line km="19.5" line-id="189"/>... NodeList nodeList = (NodeList) XMLUtils.xpath(response, XPATH_CROSS_SECTIONS, XPathConstants.NODESET); int num = nodeList.getLength(); Map<Integer, Double[]> result = new HashMap<Integer, Double[]>(); try{ for (int i = 0; i < num; i++) { Element csElement = (Element) nodeList.item(i); int idx = Integer.parseInt(csElement.getAttribute("id")); ArrayList<Double> kms = new ArrayList<Double>(); NodeList lineNodes = csElement.getElementsByTagName("line"); int numLines = lineNodes.getLength(); for (int k = 0; k < numLines; k++) { Element line = (Element) lineNodes.item(k); double d = Double.parseDouble(line.getAttribute("km")); kms.add(d); } Double[] doubles = new Double[kms.size()]; kms.toArray(doubles); result.put(Integer.valueOf(idx), doubles); } } catch(NumberFormatException nfe) { logger.error("Response was not parsable"); } return result; } catch (ConnectionException ce) { logger.error("ConnectionExsp", ce); } logger.warn("CrossSectionKMService.getCrossSectionKMS() - FAILED"); throw new ServerException(ERROR_GET_CROSS_SECTION); } } // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :