Mercurial > dive4elements > framework
view artifact-database/src/main/java/de/intevation/artifactdatabase/rest/BaseOutResource.java @ 421:4213dd6ca169
Fix queries for finding a user
artifacts/trunk@5383 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author | Bjoern Ricks <bjoern.ricks@intevation.de> |
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date | Fri, 07 Sep 2012 13:01:43 +0000 |
parents | d9a99b28a847 |
children |
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/* * Copyright (c) 2011 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.common.utils.XMLUtils; import de.intevation.artifacts.ArtifactDatabase; import de.intevation.artifacts.ArtifactDatabaseException; import de.intevation.artifacts.ArtifactNamespaceContext; import de.intevation.artifacts.CallMeta; 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.restlet.resource.ResourceException; import org.w3c.dom.Document; /** * Base Resource to serve the out()-outputs of collections and artifacts. * * @author <a href="mailto:ingo.weinzierl@intevation">Ingo Weinzierl</a> */ public abstract class BaseOutResource extends BaseResource { /** The logger used in this class.*/ private static Logger logger = Logger.getLogger(BaseOutResource.class); /** XPath to figure out the MIME type of the requested result.*/ public static final String XPATH_MIME_TYPE = "/art:action/art:out/art:mime-type/@value"; /** Default result MIME type: octet stream.*/ public static final MediaType DEFAULT_MIME_TYPE = MediaType.APPLICATION_OCTET_STREAM; @Override protected Representation innerPost(Representation requestRepr) throws ResourceException { 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(); } ArtifactDatabase db = getArtifactDatabase(); Request request = getRequest(); String identifier = getIdentifier(); String outType = getType(); if (logger.isDebugEnabled()) { logger.debug("looking for artifact id '" + identifier + "'"); } String mimeTypeString = XMLUtils.xpathString( inputDocument, XPATH_MIME_TYPE, ArtifactNamespaceContext.INSTANCE); MediaType mimeType = DEFAULT_MIME_TYPE; if (mimeTypeString != null && mimeTypeString.length() != 0) { try { mimeType = MediaType.valueOf(mimeTypeString); } catch (Exception e) { logger.error(e.getLocalizedMessage()); } } try { return new OutRepresentation( mimeType, doOut(identifier, outType, inputDocument, db, getCallMeta())); } catch (ArtifactDatabaseException adbe) { Response response = getResponse(); response.setStatus( Status.CLIENT_ERROR_NOT_FOUND, adbe.getMessage()); return new EmptyRepresentation(); } } /** * Returns the identifier of the artifact or collection. * * @return the identifier. */ protected abstract String getIdentifier(); /** * Returns the concrete output type of the artifact or collection. * * @return the output type. */ protected abstract String getType(); /** * This method is called to process the operation on artifacts or * collections. * * @param identifier The identifier of the artifact or collection. * @param type The output type. * @param input The input document of the request. * @param db The artifact database. * @param meta The CallMeta object. * * @return the result of the operation. */ protected abstract ArtifactDatabase.DeferredOutput doOut( String identifier, String type, Document input, ArtifactDatabase db, CallMeta meta) throws ArtifactDatabaseException; } // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :