Mercurial > dive4elements > river
view flys-client/src/main/java/de/intevation/flys/client/server/ModuleServiceImpl.java @ 4241:49cb65d5932d
Improved the historical discharge calculation.
The calculation now creates new HistoricalWQKms (new subclass of WQKms). Those WQKms are used
to create new facets from (new) type 'HistoricalDischargeCurveFacet'. The chart generator is
improved to support those facets.
author | Ingo Weinzierl <ingo.weinzierl@intevation.de> |
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date | Wed, 24 Oct 2012 14:34:35 +0200 |
parents | fed914a42a10 |
children |
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package de.intevation.flys.client.server; 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.client.services.ModuleService; import de.intevation.flys.client.server.auth.User; import de.intevation.flys.client.shared.exceptions.ServerException; import de.intevation.flys.client.shared.model.DefaultModule; import de.intevation.flys.client.shared.model.Module; import java.util.ArrayList; import java.util.List; import javax.xml.xpath.XPathConstants; import org.apache.log4j.Logger; import org.w3c.dom.Document; import org.w3c.dom.Element; import org.w3c.dom.NodeList; public class ModuleServiceImpl extends RemoteServiceServlet implements ModuleService { private static final Logger logger = Logger.getLogger(ModuleServiceImpl.class); public static final String XPATH_MODULES = "/art:modules/art:module"; public static final String ERROR_NO_MODULES_FOUND = "error_no_module_found"; @Override public Module[] list(String locale) throws ServerException { User user = this.getUser(); logger.info("ModuleService.list"); String url = getServletContext().getInitParameter("server-url"); // create dummy xml Document doc = XMLUtils.newDocument(); XMLUtils.ElementCreator ec = new XMLUtils.ElementCreator( doc, ArtifactNamespaceContext.NAMESPACE_URI, ArtifactNamespaceContext.NAMESPACE_PREFIX); Element dummy = ec.create("modules"); doc.appendChild(dummy); HttpClient client = new HttpClientImpl(url, locale); try { Document result = client.callService(url, "modules", doc); NodeList list = (NodeList) XMLUtils.xpath( result, XPATH_MODULES, XPathConstants.NODESET, ArtifactNamespaceContext.INSTANCE); if (list == null) { logger.warn("No modules found."); throw new ServerException(ERROR_NO_MODULES_FOUND); } int num = list.getLength(); List<Module> modules = new ArrayList<Module>(list.getLength()); for(int i =0; i < num; i++) { Element em = (Element)list.item(i); String name = em.getAttributeNS( ArtifactNamespaceContext.NAMESPACE_URI, "name"); String localname = em.getAttributeNS( ArtifactNamespaceContext.NAMESPACE_URI, "localname"); String strselected = em.getAttributeNS( ArtifactNamespaceContext.NAMESPACE_URI, "selected"); boolean selected = strselected == null ? false : strselected.equalsIgnoreCase("true"); logger.debug("Found module " + name + " " + localname); if (user == null || user.canUseFeature("module:" + name)) { modules.add(new DefaultModule(name, localname, selected)); } } return modules.toArray(new Module[modules.size()]); } catch (ConnectionException ce) { logger.error(ce, ce); } throw new ServerException(ERROR_NO_MODULES_FOUND); } } // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 tw=80 :