opendaylight/md-sal/sal-common-util/src/main/java/org/opendaylight/controller/sal/common/util/CommitHandlerTransactions.java

   1 /*
   2  * Copyright (c) 2014 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 package org.opendaylight.controller.sal.common.util;
   9
  10 import org.opendaylight.controller.md.sal.common.api.data.DataModification;
  11 import org.opendaylight.controller.md.sal.common.api.data.DataCommitHandler.DataCommitTransaction;
  12 import org.opendaylight.yangtools.concepts.Path;
  13 import org.opendaylight.yangtools.yang.common.RpcResult;
  14 import org.opendaylight.yangtools.yang.common.RpcResultBuilder;
  15
  16 public class CommitHandlerTransactions {
  17
  18     private static class AllwaysSuccessfulTransaction<P extends Path<P>,D> implements DataCommitTransaction<P, D> {
  19
  20         private final  DataModification<P, D> modification;
  21
  22         public AllwaysSuccessfulTransaction(DataModification<P, D> modification) {
  23             this.modification = modification;
  24         }
  25         @Override
  26         public RpcResult<Void> rollback() throws IllegalStateException {
  27             return RpcResultBuilder.<Void>success().build();
  28         }
  29         @Override
  30         public RpcResult<Void> finish() throws IllegalStateException {
  31             return RpcResultBuilder.<Void>success().build();
  32         }
  33
  34         @Override
  35         public DataModification<P, D> getModification() {
  36             return modification;
  37         }
  38     }
  39
  40     public static final <P extends Path<P>,D> AllwaysSuccessfulTransaction<P, D> allwaysSuccessfulTransaction(DataModification<P, D> modification)  {
  41         return new AllwaysSuccessfulTransaction<>(modification);
  42     }
  43 }