1 files changed, 54 insertions, 0 deletions
diff --git a/java/broker/src/main/java/org/apache/qpid/server/security/group/GroupPrincipalAccessor.java b/java/broker/src/main/java/org/apache/qpid/server/security/group/GroupPrincipalAccessor.java
new file mode 100644
index 0000000000..d549b76aab
--- /dev/null
+++ b/java/broker/src/main/java/org/apache/qpid/server/security/group/GroupPrincipalAccessor.java
@@ -0,0 +1,54 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.qpid.server.security.group;
+
+import java.security.Principal;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.HashSet;
+import java.util.Set;
+
+import org.apache.qpid.server.model.GroupProvider;
+import org.apache.qpid.server.model.adapter.GroupProviderAdapter;
+
+
+public class GroupPrincipalAccessor
+{
+    private final Collection<GroupProvider> _groupProviders;
+
+    public GroupPrincipalAccessor(Collection<GroupProvider> groupProviders)
+    {
+        _groupProviders = groupProviders;
+    }
+
+    public Set<Principal> getGroupPrincipals(String username)
+    {
+        Set<Principal> principals = new HashSet<Principal>();
+        for (GroupProvider groupProvider : _groupProviders)
+        {
+            Set<Principal> groups = groupProvider.getGroupPrincipalsForUser(username);
+            if (groups != null)
+            {
+                principals.addAll(groups);
+            }
+        }
+
+        return Collections.unmodifiableSet(principals);
+    }
+}