Mercurial > dive4elements > framework
diff artifact-database/src/main/java/org/dive4elements/artifactdatabase/rest/ServiceResource.java @ 473:d0ac790a6c89 dive4elements-move
Moved directories to org.dive4elements
author | Sascha L. Teichmann <teichmann@intevation.de> |
---|---|
date | Thu, 25 Apr 2013 10:57:18 +0200 |
parents | artifact-database/src/main/java/de/intevation/artifactdatabase/rest/ServiceResource.java@9798e4d83681 |
children | 415df0fc4fa1 |
line wrap: on
line diff
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/artifact-database/src/main/java/org/dive4elements/artifactdatabase/rest/ServiceResource.java Thu Apr 25 10:57:18 2013 +0200 @@ -0,0 +1,105 @@ +/* + * Copyright (c) 2010 by Intevation GmbH + * + * This program is free software under the LGPL (>=v2.1) + * Read the file LGPL.txt coming with the software for details + * or visit http://www.gnu.org/licenses/ if it does not exist. + */ + +package de.intevation.artifactdatabase.rest; + +import de.intevation.artifacts.ArtifactDatabase; +import de.intevation.artifacts.ArtifactDatabaseException; + +import java.io.IOException; + +import org.apache.log4j.Logger; + +import org.restlet.Request; +import org.restlet.Response; +import org.restlet.data.MediaType; +import org.restlet.data.Status; + +import org.restlet.ext.xml.DomRepresentation; + +import org.restlet.representation.EmptyRepresentation; +import org.restlet.representation.Representation; + +import org.w3c.dom.Document; + +import de.intevation.artifacts.Service; + +/** + * Resource to process incoming XML documents with a given service. + * + * @author <a href="mailto:sascha.teichmann@intevation">Sascha L. Teichmann</a> + */ +public class ServiceResource +extends BaseResource +{ + private static Logger logger = Logger.getLogger(ServiceResource.class); + + /** + * server URL where to reach the resource. + */ + public static final String PATH = "/service/{service}"; + + /** + * Error message if no corresponing service is provided by + * the artifact database. + */ + public static final String NO_SUCH_ACTION_MESSAGE = "no such service"; + + @Override + protected Representation innerPost(Representation requestRepr) { + + Document inputDocument = null; + try { + DomRepresentation input = new DomRepresentation(requestRepr); + input.setNamespaceAware(true); + inputDocument = input.getDocument(); + } + catch (IOException ioe) { + logger.error(ioe.getMessage()); + Response response = getResponse(); + response.setStatus(Status.CLIENT_ERROR_BAD_REQUEST, ioe); + return new EmptyRepresentation(); + } + + Request request = getRequest(); + + String service = (String)request.getAttributes().get("service"); + + ArtifactDatabase db = (ArtifactDatabase)getContext() + .getAttributes().get("database"); + + try { + return guessRepresentation( + db.process(service, inputDocument, getCallMeta())); + } + catch (ArtifactDatabaseException adbe) { + logger.warn(adbe.getLocalizedMessage(), adbe); + Response response = getResponse(); + response.setStatus( + Status.CLIENT_ERROR_BAD_REQUEST, adbe.getMessage()); + return new EmptyRepresentation(); + } + } + + protected static Representation guessRepresentation(Service.Output output) { + + MediaType mediaType = new MediaType(output.getMIMEType()); + Object data = output.getData(); + + if (data instanceof Document) { + return new DomRepresentation(mediaType, (Document)data); + } + + if (data instanceof byte []) { + return new ByteArrayRepresentation(mediaType, (byte [])data); + } + + return new EmptyRepresentation(); + } +} +// vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :