Services/Transaction/Castle.Services.Transaction/Activity.cs

   1 // Copyright 2004-2008 Castle Project - http://www.castleproject.org/
   2 //
   3 // Licensed under the Apache License, Version 2.0 (the "License");
   4 // you may not use this file except in compliance with the License.
   5 // You may obtain a copy of the License at
   6 //
   7 //     http://www.apache.org/licenses/LICENSE-2.0
   8 //
   9 // Unless required by applicable law or agreed to in writing, software
  10 // distributed under the License is distributed on an "AS IS" BASIS,
  11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  12 // See the License for the specific language governing permissions and
  13 // limitations under the License.
  14
  15 namespace Castle.Services.Transaction
  16 {
  17         using System;
  18         using System.Collections.Generic;
  19         using System.Runtime.Remoting.Messaging;
  20
  21         [Serializable]
  22         public class Activity : MarshalByRefObject, ILogicalThreadAffinative
  23         {
  24                 private Guid id;
  25                 private Stack<ITransaction> transactionStack = new Stack<ITransaction>(2);
  26
  27                 /// <summary>
  28                 /// Initializes a new instance of the <see cref="Activity"/> class.
  29                 /// </summary>
  30                 public Activity()
  31                 {
  32                         id = Guid.NewGuid();
  33                 }
  34
  35                 public ITransaction CurrentTransaction
  36                 {
  37                         get
  38                         {
  39                                 if (transactionStack.Count == 0)
  40                                 {
  41                                         return null;
  42                                 }
  43
  44                                 return transactionStack.Peek();
  45                         }
  46                 }
  47
  48                 public void Push(ITransaction transaction)
  49                 {
  50                         transactionStack.Push(transaction);
  51                 }
  52
  53                 public ITransaction Pop()
  54                 {
  55                         return transactionStack.Pop();
  56                 }
  57
  58                 public override bool Equals(object obj)
  59                 {
  60                         if (this == obj) return true;
  61                         Activity activity = obj as Activity;
  62                         if (activity == null) return false;
  63                         return Equals(id, activity.id);
  64                 }
  65
  66                 public override int GetHashCode()
  67                 {
  68                         return id.GetHashCode();
  69                 }
  70         }
  71 }