Mercurial > dive4elements > framework
changeset 137:f92ad0e40df2
Added a resource that handles user specific actions.
artifacts/trunk@1362 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author | Ingo Weinzierl <ingo.weinzierl@intevation.de> |
---|---|
date | Wed, 02 Mar 2011 11:07:21 +0000 (2011-03-02) |
parents | e2aad8d8ebd7 |
children | b90e831d3dfe |
files | ChangeLog artifact-database/src/main/java/de/intevation/artifactdatabase/rest/RestApp.java artifact-database/src/main/java/de/intevation/artifactdatabase/rest/UserResource.java |
diffstat | 3 files changed, 146 insertions(+), 0 deletions(-) [+] |
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--- a/ChangeLog Wed Mar 02 10:36:51 2011 +0000 +++ b/ChangeLog Wed Mar 02 11:07:21 2011 +0000 @@ -1,3 +1,11 @@ +2011-03-02 Ingo Weinzierl <ingo@intevation.de> + + * artifact-database/src/main/java/de/intevation/artifactdatabase/rest/UserResource.java: + New. A Rest resource that handles actions for a specific user. + + * artifact-database/src/main/java/de/intevation/artifactdatabase/rest/RestApp.java: + Added the UserResource. + 2011-03-02 Ingo Weinzierl <ingo@intevation.de> * artifact-database/src/main/java/de/intevation/artifactdatabase/rest/ListUsersResource.java:
--- a/artifact-database/src/main/java/de/intevation/artifactdatabase/rest/RestApp.java Wed Mar 02 10:36:51 2011 +0000 +++ b/artifact-database/src/main/java/de/intevation/artifactdatabase/rest/RestApp.java Wed Mar 02 11:07:21 2011 +0000 @@ -75,6 +75,7 @@ router.attach(ImportResource.PATH, ImportResource.class); router.attach(CreateUserResource.PATH, CreateUserResource.class); router.attach(ListUsersResource.PATH, ListUsersResource.class); + router.attach(UserResource.PATH, UserResource.class); return router; }
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/artifact-database/src/main/java/de/intevation/artifactdatabase/rest/UserResource.java Wed Mar 02 11:07:21 2011 +0000 @@ -0,0 +1,137 @@ +/* + * 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.ArtifactDatabase; +import de.intevation.artifacts.ArtifactDatabaseException; + +import de.intevation.artifacts.common.ArtifactNamespaceContext; +import de.intevation.artifacts.common.utils.XMLUtils; + +import java.io.IOException; + +import org.apache.log4j.Logger; + +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.Request; +import org.restlet.Response; + +import org.w3c.dom.Document; + +/** + * A resource that handles actions to a specific user. + * + * @author <a href="mailto:ingo.weinzierl@intevation">Ingo Weinzierl</a> + */ +public class UserResource +extends BaseResource +{ + /** The logger that is used in this class.*/ + private static Logger logger = Logger.getLogger(UserResource.class); + + /** server URL where to reach the resource.*/ + public static final String PATH = "/user/{uuid}"; + + /** + * XPath to figure out the type of action (feed, advance) via the + * incoming POST request. + */ + public static final String XPATH_ACTION = "/art:action/art:type/@name"; + + /** Error message if no action was given.*/ + public static final String NO_ACTION_MSG = "no action given"; + + /** Error message if a unknown action was given.*/ + public static final String NO_SUCH_ACTION_MSG = "no such action"; + + /** Action name for deleting users.*/ + public static final String ACTION_DELETE = "delete"; + + + @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(); + } + + String action = XMLUtils.xpathString( + inputDocument, + XPATH_ACTION, + ArtifactNamespaceContext.INSTANCE); + + if (action == null || action.length() == 0) { + Response response = getResponse(); + response.setStatus( + Status.CLIENT_ERROR_BAD_REQUEST, NO_ACTION_MSG); + return new EmptyRepresentation(); + } + + Request request = getRequest(); + + String identifier = (String)request.getAttributes().get("uuid"); + + ArtifactDatabase db = getArtifactDatabase(); + + return dispatch(identifier, action, inputDocument, db); + } + + /** + * Method to figure out which POST action (feed or advance) was + * triggered and perform this operation on the artifact specified + * by 'identifier' and found in the artifact database 'db' + * @param identifier The identifier of the artifact. + * @param action The action to be performed. + * @param source The input document to further parameterize the + * operation. + * @param db The artifact database where to find the artifact. + * @return The representation produced by the performed action. + */ + protected Representation dispatch( + String identifier, + String action, + Document source, + ArtifactDatabase db) + { + Document out = null; + + logger.info("Action: " + action + " | User: " + identifier); + + try { + if (action.equals(ACTION_DELETE)) { + out = db.deleteUser(identifier, getCallMeta()); + } + else { + throw new ArtifactDatabaseException(NO_SUCH_ACTION_MSG); + } + } + catch (ArtifactDatabaseException adbe) { + logger.warn(adbe.getLocalizedMessage(), adbe); + Response response = getResponse(); + response.setStatus( + Status.CLIENT_ERROR_BAD_REQUEST, adbe.getMessage()); + return new EmptyRepresentation(); + } + + return new DomRepresentation(MediaType.APPLICATION_XML, out); + } +} +// vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :