Mercurial > dive4elements > river
view flys-client/src/main/java/de/intevation/flys/client/server/DescribeCollectionServiceImpl.java @ 4421:0b0f415203f0
Add new Filter class to change caching
Add new Filter class to avoid caching of GWT nocache files in browsers and http
proxies. The new Filter class NoCacheFilter sets http headers to stop the
proxies and browesers from storing the nocache files.
author | Björn Ricks <bjoern.ricks@intevation.de> |
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date | Tue, 06 Nov 2012 13:32:06 +0100 |
parents | bc06a671ef60 |
children |
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package de.intevation.flys.client.server; import org.w3c.dom.Document; import org.apache.log4j.Logger; import com.google.gwt.user.server.rpc.RemoteServiceServlet; import de.intevation.artifacts.common.utils.ClientProtocolUtils; import de.intevation.artifacts.httpclient.exceptions.ConnectionException; import de.intevation.artifacts.httpclient.http.HttpClient; import de.intevation.artifacts.httpclient.http.HttpClientImpl; import de.intevation.artifacts.httpclient.http.response.DocumentResponseHandler; import de.intevation.flys.client.shared.exceptions.ServerException; import de.intevation.flys.client.shared.model.Collection; import de.intevation.flys.client.client.services.DescribeCollectionService; /** * This service implements a method that queries the DESCRIBE document of a * specific collection and returns a Collection object with the information of * the document. * * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a> */ public class DescribeCollectionServiceImpl extends RemoteServiceServlet implements DescribeCollectionService { private static final Logger logger = Logger.getLogger(DescribeCollectionServiceImpl.class); /** The error message key that is thrown if an error occured while * describe() a Collection.*/ public static final String ERROR_DESCRIBE_COLLECTION = "error_describe_collection"; public Collection describe(String uuid, String locale) throws ServerException { logger.info("DescribeCollectionServiceImpl.describe"); String url = getServletContext().getInitParameter("server-url"); Document describe = ClientProtocolUtils.newDescribeCollectionDocument( uuid); HttpClient client = new HttpClientImpl(url, locale); try { Document response = (Document) client.doCollectionAction( describe, uuid, new DocumentResponseHandler()); Collection c = CollectionHelper.parseCollection(response); if (c == null) { throw new ServerException(ERROR_DESCRIBE_COLLECTION); } logger.debug("Collection successfully parsed."); return c; } catch (ConnectionException ce) { logger.error(ce, ce); } throw new ServerException(ERROR_DESCRIBE_COLLECTION); } } // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :