Mercurial > dive4elements > river
view flys-client/src/main/java/de/intevation/flys/client/server/DescribeArtifactServiceImpl.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.Artifact; import de.intevation.flys.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 de.intevation.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 :