--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/flys-client/src/main/java/org/dive4elements/river/client/server/ModuleServiceImpl.java	Thu Apr 25 12:31:32 2013 +0200
@@ -0,0 +1,99 @@
+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 :