--- a/ChangeLog	Thu Mar 03 08:04:57 2011 +0000
+++ b/ChangeLog	Thu Mar 03 08:07:28 2011 +0000
@@ -1,3 +1,10 @@
+2011-03-03  Ingo Weinzierl <ingo@intevation.de>
+
+	* artifact-database/src/main/java/de/intevation/artifactdatabase/ArtifactDatabaseImpl.java:
+	  Implemented the deleteUser() interface method. This operation will now
+	  remove the specified user, its collections and the artifacts stored in
+	  these collections.
+
 2011-03-03  Ingo Weinzierl <ingo@intevation.de>
 
 	* artifact-database/src/main/java/de/intevation/artifactdatabase/Backend.java:

--- a/artifact-database/src/main/java/de/intevation/artifactdatabase/ArtifactDatabaseImpl.java	Thu Mar 03 08:04:57 2011 +0000
+++ b/artifact-database/src/main/java/de/intevation/artifactdatabase/ArtifactDatabaseImpl.java	Thu Mar 03 08:07:28 2011 +0000
@@ -176,6 +176,10 @@
     public static final String XPATH_USERROLE =
         "/art:action/art:user/art:role";
 
+    /** Error message if a specified user does not exist.*/
+    public static final String NO_SUCH_USER =
+        "No such user";
+
     /** Error message if no username is given for user creation.*/
     public static final String NO_USERNAME =
         "Invalid username";
@@ -961,6 +965,7 @@
 
         for (User user: users) {
             Element ue = ec.create("user");
+            ec.addAttr(ue, "uuid", user.identifier());
             ec.addAttr(ue, "name", user.getName());
 
             // TODO append the role of the user.
@@ -1022,8 +1027,29 @@
     }
 
     public Document deleteUser(String userId, CallMeta callMeta)
-        throws ArtifactDatabaseException {
-        throw new ArtifactDatabaseException("Not implemented, yet!");
+        throws ArtifactDatabaseException
+    {
+        UserFactory factory = getUserFactory();
+
+        if (factory == null) {
+            throw new ArtifactDatabaseException(NO_SUCH_FACTORY);
+        }
+
+        User toDelete = factory.getUser(userId, context);
+
+        if (toDelete == null) {
+            logger.warn("There is no user with the uuid: " + userId);
+            throw new ArtifactDatabaseException(NO_SUCH_USER);
+        }
+
+        logger.debug(
+            "Remove user: " + toDelete.getName() +
+            "(" + toDelete.identifier() + ")");
+
+        factory.deleteUser(toDelete, context);
+
+        // FIXME Return a useful document!
+        return XMLUtils.newDocument();
     }