Mercurial > dive4elements > river
view flys-client/src/main/java/de/intevation/flys/client/server/ModuleServiceImpl.java @ 4932:60b026b4340e dami
Importer: Classify hochufer as Deich
author | Andre Heinecke <aheinecke@intevation.de> |
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date | Thu, 31 Jan 2013 12:06:12 +0100 |
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 :