--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/artifact-database/src/main/java/org/dive4elements/artifactdatabase/rest/UserResource.java	Thu Apr 25 10:57:18 2013 +0200
@@ -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 :