Mercurial > dive4elements > river
view flys-client/src/main/java/de/intevation/flys/client/server/GetArtifactServiceImpl.java @ 5818:a4ff4167be1e
Request feature info on all layers and show it as html if
the server does not return valid gml.
Non queryable layers produce an error message when the request
fails. This is good enough
author | Andre Heinecke <aheinecke@intevation.de> |
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date | Wed, 24 Apr 2013 17:33:27 +0200 |
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.ArtifactNamespaceContext; import de.intevation.artifacts.common.utils.ClientProtocolUtils; 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.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.GetArtifactService; /** * This service provides a method that returns an artifact based on its * identifier. * * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a> */ public class GetArtifactServiceImpl extends RemoteServiceServlet implements GetArtifactService { private static final Logger logger = Logger.getLogger(GetArtifactServiceImpl.class); public static final String ERROR_DESCRIBE_ARTIFACT = "error_describe_artifact"; public static final String XPATH_RESULT = "/art:result/text()"; public static final String OPERATION_FAILURE = "FAILED"; public Artifact getArtifact( String locale, String uuid, String hash) throws ServerException { logger.info("GetArtifactServiceImpl.getArtifact"); String url = getServletContext().getInitParameter("server-url"); Document describe = ClientProtocolUtils.newDescribeDocument( uuid, hash, true); HttpClient client = new HttpClientImpl(url, locale); try { Document description = (Document) client.describe( new de.intevation.artifacts.httpclient.objects.Artifact( uuid, hash), describe, new DocumentResponseHandler()); if (description == null) { throw new ServerException(ERROR_DESCRIBE_ARTIFACT); } String result = XMLUtils.xpathString( description, XPATH_RESULT, ArtifactNamespaceContext.INSTANCE); if (result == null || !result.equals(OPERATION_FAILURE)) { return (Artifact) new FLYSArtifactCreator().create(description); } } catch (ConnectionException ce) { logger.error(ce, ce); } throw new ServerException(ERROR_DESCRIBE_ARTIFACT); } } // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :