teichmann@5835: package org.dive4elements.river.client.server;
ingo@865: 
ingo@865: import org.w3c.dom.Document;
ingo@865: 
ingo@1367: import org.apache.log4j.Logger;
ingo@1367: 
ingo@865: import com.google.gwt.user.server.rpc.RemoteServiceServlet;
ingo@865: 
teichmann@5835: import org.dive4elements.artifacts.common.utils.ClientProtocolUtils;
ingo@865: 
teichmann@5835: import org.dive4elements.artifacts.httpclient.exceptions.ConnectionException;
teichmann@5835: import org.dive4elements.artifacts.httpclient.http.HttpClient;
teichmann@5835: import org.dive4elements.artifacts.httpclient.http.HttpClientImpl;
teichmann@5835: import org.dive4elements.artifacts.httpclient.http.response.DocumentResponseHandler;
ingo@865: 
teichmann@5835: import org.dive4elements.river.client.shared.exceptions.ServerException;
teichmann@5835: import org.dive4elements.river.client.shared.model.Artifact;
teichmann@5835: import org.dive4elements.river.client.client.services.DescribeArtifactService;
ingo@865: 
ingo@865: 
ingo@865: /**
ingo@865:  * This interface provides artifact specific operation DESCRIBE.
ingo@865:  *
ingo@865:  * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
ingo@865:  */
ingo@865: public class DescribeArtifactServiceImpl
ingo@865: extends      RemoteServiceServlet
ingo@865: implements   DescribeArtifactService
ingo@865: {
ingo@1367:     private static final Logger logger =
ingo@1367:         Logger.getLogger(DescribeArtifactServiceImpl.class);
ingo@1367: 
ingo@1367: 
ingo@865:     public static final String ERROR_DESCRIBE_ARTIFACT =
ingo@865:         "error_describe_artifact";
ingo@865: 
ingo@865: 
raimund@1425:     public Artifact describe(String locale, Artifact artifact)
ingo@865:     throws ServerException
ingo@865:     {
ingo@1367:         logger.info("DescribeArtifactServiceImpl.describe");
ingo@865: 
raimund@1425:         String url  = getServletContext().getInitParameter("server-url");
raimund@1425: 
ingo@865:         Document describe = ClientProtocolUtils.newDescribeDocument(
ingo@865:             artifact.getUuid(),
ingo@865:             artifact.getHash(),
ingo@865:             true);
ingo@865: 
ingo@865:         HttpClient client = new HttpClientImpl(url, locale);
ingo@865: 
ingo@865:         try {
ingo@1367:             logger.debug("Start Http request now.");
ingo@865: 
ingo@865:             Document description = (Document) client.describe(
teichmann@5835:                 new org.dive4elements.artifacts.httpclient.objects.Artifact(
ingo@865:                     artifact.getUuid(),
ingo@865:                     artifact.getHash()),
ingo@865:                 describe,
ingo@865:                 new DocumentResponseHandler());
ingo@865: 
ingo@865:             if (description != null) {
ingo@1367:                 logger.debug("Finished Http request sucessfully!");
ingo@865: 
ingo@865:                 return (Artifact) new FLYSArtifactCreator().create(description);
ingo@865:             }
ingo@865:         }
ingo@865:         catch (ConnectionException ce) {
ingo@865:             ce.printStackTrace();
ingo@865:         }
ingo@865: 
ingo@865:         throw new ServerException(ERROR_DESCRIBE_ARTIFACT);
ingo@865:     }
ingo@865: }
ingo@865: // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :