Merged DEV/SWIFT to HEAD

25458: added OpenCMIS server
   25555: Don't initialize servlet context if it is not present


git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@28000 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261

source/java/org/alfresco/opencmis/mapping/CanCheckOutActionEvaluator.java

@@ -0,0 +1,66 @@
+/*
+ * Copyright (C) 2005-2010 Alfresco Software Limited.
+ *
+ * This file is part of Alfresco
+ *
+ * Alfresco is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Alfresco is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Alfresco. If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.alfresco.opencmis.mapping;
+
+import org.alfresco.model.ContentModel;
+import org.alfresco.service.ServiceRegistry;
+import org.alfresco.service.cmr.lock.LockService;
+import org.alfresco.service.cmr.lock.LockType;
+import org.alfresco.service.cmr.repository.NodeRef;
+import org.alfresco.service.cmr.repository.NodeService;
+import org.alfresco.service.cmr.security.PermissionService;
+import org.apache.chemistry.opencmis.commons.enums.Action;
+
+/**
+ * Alfresco Permission based Action Evaluator
+ * 
+ * @author davidc
+ */
+public class CanCheckOutActionEvaluator extends AbstractActionEvaluator<NodeRef>
+{
+    private PermissionActionEvaluator permissionEvaluator;
+    private NodeService nodeService;
+    private LockService lockService;
+
+    /**
+     * Construct
+     * 
+     * @param serviceRegistry
+     * @param permission
+     */
+    protected CanCheckOutActionEvaluator(ServiceRegistry serviceRegistry)
+    {
+        super(serviceRegistry, Action.CAN_CHECK_OUT);
+        permissionEvaluator = new PermissionActionEvaluator(serviceRegistry, Action.CAN_CHECK_OUT,
+                PermissionService.CHECK_OUT);
+        nodeService = serviceRegistry.getNodeService();
+        lockService = serviceRegistry.getLockService();
+    }
+
+    public boolean isAllowed(NodeRef nodeRef)
+    {
+        if (nodeService.hasAspect(nodeRef, ContentModel.ASPECT_WORKING_COPY)
+                || lockService.getLockType(nodeRef) == LockType.READ_ONLY_LOCK)
+        {
+            return false;
+        }
+        return permissionEvaluator.isAllowed(nodeRef);
+    }
+
+}