opendaylight/netconf/config-netconf-connector/src/main/java/org/opendaylight/controller/netconf/confignetconfconnector/operations/editconfig/EditStrategyType.java

   1 /*
   2  * Copyright (c) 2013 Cisco Systems, Inc. and others.  All rights reserved.
   3  *
   4  * This program and the accompanying materials are made available under the
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html
   7  */
   8
   9 package org.opendaylight.controller.netconf.confignetconfconnector.operations.editconfig;
  10
  11 import com.google.common.collect.Multimap;
  12 import org.opendaylight.controller.netconf.api.NetconfDocumentedException;
  13 import org.opendaylight.controller.netconf.confignetconfconnector.exception.OperationNotPermittedException;
  14
  15 import java.util.EnumSet;
  16 import java.util.Set;
  17
  18 public enum EditStrategyType {
  19     // can be default
  20     merge, replace, none,
  21     // additional per element
  22     delete, remove;
  23
  24     private static final Set<EditStrategyType> defaultStrats = EnumSet.of(merge, replace, none);
  25
  26     public static EditStrategyType getDefaultStrategy() {
  27         return merge;
  28     }
  29
  30     public boolean isEnforcing() {
  31         switch (this) {
  32         case merge:
  33         case none:
  34         case remove:
  35         case delete:
  36             return false;
  37         case replace:
  38             return true;
  39
  40         default:
  41             throw new IllegalStateException("Default edit strategy can be only of value " + defaultStrats + " but was "
  42                     + this);
  43         }
  44     }
  45     public static void compareParsedStrategyToDefaultEnforcing(EditStrategyType parsedStrategy,
  46                                                                   EditStrategyType defaultStrategy) throws OperationNotPermittedException {
  47         if (defaultStrategy.isEnforcing()) {
  48             if (parsedStrategy != defaultStrategy){
  49                 throw new OperationNotPermittedException(String.format("With "
  50                         + defaultStrategy
  51                         + " as "
  52                         + EditConfigXmlParser.DEFAULT_OPERATION_KEY
  53                         + " operations on module elements are not permitted since the default option is restrictive"),
  54                         NetconfDocumentedException.ErrorType.application,
  55                         NetconfDocumentedException.ErrorTag.operation_failed,
  56                         NetconfDocumentedException.ErrorSeverity.error);
  57             }
  58         }
  59
  60     }
  61     public EditConfigStrategy getFittingStrategy(Multimap<String, String> providedServices) {
  62         switch (this) {
  63         case merge:
  64             return new MergeEditConfigStrategy(providedServices);
  65         case replace:
  66             return new ReplaceEditConfigStrategy(providedServices);
  67         case delete:
  68             return new DeleteEditConfigStrategy();
  69         case remove:
  70             return new RemoveEditConfigStrategy();
  71         case none:
  72             return new NoneEditConfigStrategy();
  73         default:
  74             throw new UnsupportedOperationException("Unimplemented edit config strategy" + this);
  75         }
  76     }
  77 }