ensure ProxyConnector are correctly ordered

git-svn-id: https://svn.apache.org/repos/asf/archiva/trunk@1237697 13f79535-47bb-0310-9956-ffa450edef68

archiva-modules/archiva-base/archiva-repository-admin/archiva-repository-admin-default/src/main/java/org/apache/archiva/admin/repository/proxyconnector/DefaultProxyConnectorAdmin.java

@@ -69,7 +69,7 @@ public class DefaultProxyConnectorAdmin
         {
             proxyConnectors.add( getProxyConnector( configuration ) );
         }
-
+        Collections.sort( proxyConnectors, ProxyConnectorOrderComparator.getInstance() );
         return proxyConnectors;
     }
 

archiva-modules/archiva-base/archiva-repository-admin/archiva-repository-admin-default/src/main/java/org/apache/archiva/admin/repository/proxyconnector/ProxyConnectorOrderComparator.java

@@ -0,0 +1,70 @@
+package org.apache.archiva.admin.repository.proxyconnector;
+/*
+ * 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.
+ */
+
+import org.apache.archiva.admin.model.beans.ProxyConnector;
+
+import java.util.Comparator;
+
+/**
+ * @author Olivier Lamy
+ * @since 1.4-M3
+ */
+public class ProxyConnectorOrderComparator
+    implements Comparator<ProxyConnector>
+{
+    private static ProxyConnectorOrderComparator INSTANCE = new ProxyConnectorOrderComparator();
+
+    public int compare( ProxyConnector o1, ProxyConnector o2 )
+    {
+        if ( o1 == null && o2 == null )
+        {
+            return 0;
+        }
+
+        // Ensure null goes to end of list.
+        if ( o1 == null && o2 != null )
+        {
+            return 1;
+        }
+
+        if ( o1 != null && o2 == null )
+        {
+            return -1;
+        }
+
+        // Ensure 0 (unordered) goes to end of list.
+        if ( o1.getOrder() == 0 && o2.getOrder() != 0 )
+        {
+            return 1;
+        }
+
+        if ( o1.getOrder() != 0 && o2.getOrder() == 0 )
+        {
+            return -1;
+        }
+
+        return o1.getOrder() - o2.getOrder();
+    }
+
+    public static ProxyConnectorOrderComparator getInstance()
+    {
+        return INSTANCE;
+    }
+}