Mercurial > dive4elements > river
view flys-client/src/main/java/de/intevation/flys/client/server/GetArtifactServiceImpl.java @ 1575:0f2b94408bd1
Added further methods to DataFactory to create concrete Data instances.
flys-client/trunk@3841 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author | Ingo Weinzierl <ingo.weinzierl@intevation.de> |
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date | Tue, 31 Jan 2012 15:20:17 +0000 |
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 :