--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gwt-client/src/main/java/org/dive4elements/river/client/server/DescribeArtifactServiceImpl.java	Thu Apr 25 15:23:37 2013 +0200
@@ -0,0 +1,75 @@
+package org.dive4elements.river.client.server;
+
+import org.w3c.dom.Document;
+
+import org.apache.log4j.Logger;
+
+import com.google.gwt.user.server.rpc.RemoteServiceServlet;
+
+import org.dive4elements.artifacts.common.utils.ClientProtocolUtils;
+
+import org.dive4elements.artifacts.httpclient.exceptions.ConnectionException;
+import org.dive4elements.artifacts.httpclient.http.HttpClient;
+import org.dive4elements.artifacts.httpclient.http.HttpClientImpl;
+import org.dive4elements.artifacts.httpclient.http.response.DocumentResponseHandler;
+
+import org.dive4elements.river.client.shared.exceptions.ServerException;
+import org.dive4elements.river.client.shared.model.Artifact;
+import org.dive4elements.river.client.client.services.DescribeArtifactService;
+
+
+/**
+ * This interface provides artifact specific operation DESCRIBE.
+ *
+ * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
+ */
+public class DescribeArtifactServiceImpl
+extends      RemoteServiceServlet
+implements   DescribeArtifactService
+{
+    private static final Logger logger =
+        Logger.getLogger(DescribeArtifactServiceImpl.class);
+
+
+    public static final String ERROR_DESCRIBE_ARTIFACT =
+        "error_describe_artifact";
+
+
+    public Artifact describe(String locale, Artifact artifact)
+    throws ServerException
+    {
+        logger.info("DescribeArtifactServiceImpl.describe");
+
+        String url  = getServletContext().getInitParameter("server-url");
+
+        Document describe = ClientProtocolUtils.newDescribeDocument(
+            artifact.getUuid(),
+            artifact.getHash(),
+            true);
+
+        HttpClient client = new HttpClientImpl(url, locale);
+
+        try {
+            logger.debug("Start Http request now.");
+
+            Document description = (Document) client.describe(
+                new org.dive4elements.artifacts.httpclient.objects.Artifact(
+                    artifact.getUuid(),
+                    artifact.getHash()),
+                describe,
+                new DocumentResponseHandler());
+
+            if (description != null) {
+                logger.debug("Finished Http request sucessfully!");
+
+                return (Artifact) new FLYSArtifactCreator().create(description);
+            }
+        }
+        catch (ConnectionException ce) {
+            ce.printStackTrace();
+        }
+
+        throw new ServerException(ERROR_DESCRIBE_ARTIFACT);
+    }
+}
+// vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :