sascha@29: package de.intevation.artifactdatabase.rest;
sascha@29: 
sascha@93: import de.intevation.artifactdatabase.XMLUtils;
sascha@93: 
sascha@93: import de.intevation.artifacts.ArtifactDatabase;
sascha@93: import de.intevation.artifacts.ArtifactDatabaseException;
sascha@93: import de.intevation.artifacts.ArtifactNamespaceContext;
sascha@93: 
sascha@93: import java.io.IOException;
sascha@93: 
sascha@29: import org.apache.log4j.Logger;
sascha@29: 
sascha@93: import org.restlet.data.MediaType;
sascha@29: import org.restlet.data.Request;
sascha@29: import org.restlet.data.Response;
sascha@29: import org.restlet.data.Status;
sascha@29: 
sascha@29: import org.restlet.ext.xml.DomRepresentation;
sascha@29: 
sascha@93: import org.restlet.representation.EmptyRepresentation;
sascha@93: import org.restlet.representation.Representation;
sascha@29: 
sascha@93: import org.restlet.resource.ResourceException;
sascha@29: 
sascha@29: import org.w3c.dom.Document;
sascha@29: 
sascha@29: /**
sascha@88:  * Resource to serve the out()-outputs of artifacts.
sascha@77:  * @author <a href="mailto:sascha.teichmann@intevation">Sascha L. Teichmann</a>
sascha@29:  */
sascha@29: public class ArtifactOutResource
sascha@40: extends      BaseResource
sascha@29: {
sascha@88:     /**
sascha@88:      * server URL where to find the resource.
sascha@88:      */
sascha@29:     public static final String PATH = "/artifact/{uuid}/{type}";
sascha@29: 
sascha@88:     /**
sascha@88:      * XPath to figure out the MIME type of the requested result.
sascha@88:      */
ingo@65:     public static final String XPATH_MIME_TYPE = "/art:action/art:out/art:mime-type/@value";
sascha@29: 
sascha@88:     /**
sascha@88:      * Default result MIME type: octet stream
sascha@88:      */
sascha@29:     public static final MediaType DEFAULT_MIME_TYPE =
sascha@29:         MediaType.APPLICATION_OCTET_STREAM;
sascha@29: 
sascha@29:     private static Logger logger = Logger.getLogger(ArtifactOutResource.class);
sascha@29: 
sascha@88:     @Override
sascha@40:     protected Representation innerPost(Representation requestRepr)
sascha@40:     throws    ResourceException
sascha@40:     {
sascha@29:         Document inputDocument = null;
sascha@29:         try {
sascha@29:             DomRepresentation input = new DomRepresentation(requestRepr);
ingo@65:             input.setNamespaceAware(true);
sascha@29:             inputDocument = input.getDocument();
sascha@29:         }
sascha@29:         catch (IOException ioe) {
sascha@29:             logger.error(ioe.getMessage());
sascha@29:             Response response = getResponse();
sascha@29:             response.setStatus(Status.CLIENT_ERROR_BAD_REQUEST, ioe);
sascha@29:             return new EmptyRepresentation();
sascha@29:         }
sascha@29: 
sascha@29:         ArtifactDatabase db = (ArtifactDatabase)getContext()
sascha@29:             .getAttributes().get("database");
sascha@29: 
sascha@40:         Request request = getRequest();
sascha@40: 
sascha@29:         String identifier = (String)request.getAttributes().get("uuid");
sascha@29: 
sascha@29:         if (logger.isDebugEnabled()) {
sascha@29:             logger.debug("looking for artifact id '" + identifier + "'");
sascha@29:         }
sascha@29: 
sascha@29:         String mimeTypeString = XMLUtils.xpathString(
sascha@29:             inputDocument,
sascha@29:             XPATH_MIME_TYPE,
sascha@29:             ArtifactNamespaceContext.INSTANCE);
sascha@29: 
sascha@29:         MediaType mimeType = DEFAULT_MIME_TYPE;
sascha@29: 
sascha@29:         if (mimeTypeString != null && mimeTypeString.length() != 0) {
sascha@29:             try {
sascha@29:                 mimeType = MediaType.valueOf(mimeTypeString);
sascha@29:             }
sascha@29:             catch (Exception e) {
sascha@29:                 logger.error(e.getLocalizedMessage());
sascha@29:             }
sascha@29:         }
sascha@29: 
sascha@32:         try {
sascha@32:             return new OutRepresentation(
sascha@32:                 mimeType,
sascha@48:                 db.out(identifier, inputDocument, getCallMeta()));
sascha@32:         }
sascha@32:         catch (ArtifactDatabaseException adbe) {
sascha@32:             Response response = getResponse();
sascha@32:             response.setStatus(
sascha@32:                 Status.CLIENT_ERROR_NOT_FOUND, adbe.getMessage());
sascha@32:             return new EmptyRepresentation();
sascha@32:         }
sascha@29:     }
sascha@29: }
sascha@88: // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :