/// <summary>
/// Return the transaction attribute, given this set of attributes
/// attached to a method or class. Return null if it's not transactional.
/// </summary>
/// <remarks>
/// Protected rather than private as subclasses may want to customize
/// how this is done: for example, returning a
/// <see cref="Spring.Transaction.Interceptor.ITransactionAttribute"/>
/// affected by the values of other attributes.
/// This implementation takes into account
/// <see cref="Spring.Transaction.Interceptor.RollbackRuleAttribute"/>s, if
/// the TransactionAttribute is a RuleBasedTransactionAttribute.
/// </remarks>
/// <param name="attributes">
/// Attributes attached to a method or class. May be null, in which case a null
/// <see cref="Spring.Transaction.Interceptor.ITransactionAttribute"/> will be returned.
/// </param>
/// <returns>
/// The <see cref="ITransactionAttribute"/> configured transaction attribute, or null
/// if none was found.
/// </returns>
protected virtual ITransactionAttribute FindTransactionAttribute(Attribute[] attributes)
{
if (null == attributes)
{
return(null);
}
ITransactionAttribute transactionAttribute = null;
foreach (Attribute currentAttribute in attributes)
{
transactionAttribute = currentAttribute as ITransactionAttribute;
if (null != transactionAttribute)
{
break;
}
}
RuleBasedTransactionAttribute ruleBasedTransactionAttribute = transactionAttribute as RuleBasedTransactionAttribute;
if (null != ruleBasedTransactionAttribute)
{
IList rollbackRules = new LinkedList();
foreach (Attribute currentAttribute in attributes)
{
RollbackRuleAttribute rollbackRuleAttribute = currentAttribute as RollbackRuleAttribute;
if (null != rollbackRuleAttribute)
{
rollbackRules.Add(rollbackRuleAttribute);
}
}
ruleBasedTransactionAttribute.RollbackRules = rollbackRules;
return(ruleBasedTransactionAttribute);
}
return(transactionAttribute);
}
public void AlwaysTrue()
{
RollbackRuleAttribute rr = new RollbackRuleAttribute("System.Exception");
Assert.IsTrue(rr.GetDepth(typeof (SystemException)) > 0);
Assert.IsTrue(rr.GetDepth(typeof (ApplicationException)) > 0);
Assert.IsTrue(rr.GetDepth(typeof (DataException)) > 0);
Assert.IsTrue(rr.GetDepth(typeof (TransactionSystemException)) > 0);
}
public void AlwaysTrue()
{
RollbackRuleAttribute rr = new RollbackRuleAttribute("System.Exception");
Assert.IsTrue(rr.GetDepth(typeof(SystemException)) > 0);
Assert.IsTrue(rr.GetDepth(typeof(ApplicationException)) > 0);
Assert.IsTrue(rr.GetDepth(typeof(DataException)) > 0);
Assert.IsTrue(rr.GetDepth(typeof(TransactionSystemException)) > 0);
}
protected override ITransactionAttribute FindTransactionAttribute(Attribute[] attributes)
{
if (attributes == null)
{
return(null);
}
foreach (Attribute attr in attributes)
{
if (attr is TransactionAttribute)
{
TransactionAttribute ta = (TransactionAttribute)attr;
RuleBasedTransactionAttribute rbta =
new RuleBasedTransactionAttribute();
//TODO another reminder to sync property names
rbta.PropagationBehavior = ta.TransactionPropagation;
rbta.TransactionIsolationLevel = ta.IsolationLevel;
rbta.ReadOnly = ta.ReadOnly;
rbta.TransactionTimeout = ta.Timeout;
#if NET_2_0
rbta.EnterpriseServicesInteropOption = ta.EnterpriseServicesInteropOption;
#endif
Type[] rbf = ta.RollbackFor;
IList rollBackRules = new ArrayList();
if (rbf != null)
{
foreach (Type t in rbf)
{
RollbackRuleAttribute rule = new RollbackRuleAttribute(t);
rollBackRules.Add(rule);
}
}
Type[] nrbfc = ta.NoRollbackFor;
if (nrbfc != null)
{
foreach (Type t in nrbfc)
{
NoRollbackRuleAttribute rule = new NoRollbackRuleAttribute(t);
rollBackRules.Add(rule);
}
}
rbta.RollbackRules = rollBackRules;
return(rbta);
}
}
return(null);
}
/// <summary>
/// Override of <see cref="System.Object.Equals(object)"/>.
/// </summary>
/// <param name="obj">The object to compare.</param>
/// <returns><b>True</b> if the input object is equal to this instance.</returns>
public override bool Equals(object obj)
{
if (ReferenceEquals(this, obj))
{
return(true);
}
RollbackRuleAttribute rollbackRuleAttribute = obj as RollbackRuleAttribute;
if (rollbackRuleAttribute == null)
{
return(false);
}
return(Equals(rollbackRuleAttribute));
}
/// <summary>
/// Will a transaction be rolled back if the supplied <parameref name="exception"/>
/// is thrown during the lifecycle of a transaction to which this attribute is applied?
/// </summary>
/// <param name="exception">The offending <see cref="System.Exception"/>.</param>
/// <returns>True if the exception should cause a rollback, false otherwise.</returns>
public override bool RollbackOn(Exception exception)
{
RollbackRuleAttribute finalAttribute = null;
int deepest = Int32.MaxValue;
if (_rollbackRules != null)
{
foreach (RollbackRuleAttribute rule in _rollbackRules)
{
int depth = rule.GetDepth(exception);
if ((depth >= 0) && (depth < deepest))
{
deepest = depth;
finalAttribute = rule;
}
}
}
if (null == finalAttribute)
{
return(base.RollbackOn(exception));
}
return(!(finalAttribute is NoRollbackRuleAttribute));
}
protected override ITransactionAttribute FindTransactionAttribute(Attribute[] attributes)
{
if (attributes == null)
{
return null;
}
foreach (Attribute attr in attributes)
{
if (attr is TransactionAttribute)
{
TransactionAttribute ta = (TransactionAttribute)attr;
RuleBasedTransactionAttribute rbta =
new RuleBasedTransactionAttribute();
//TODO another reminder to sync property names
rbta.PropagationBehavior = ta.TransactionPropagation;
rbta.TransactionIsolationLevel = ta.IsolationLevel;
rbta.ReadOnly = ta.ReadOnly;
rbta.TransactionTimeout = ta.Timeout;
#if NET_2_0
rbta.EnterpriseServicesInteropOption = ta.EnterpriseServicesInteropOption;
#endif
Type[] rbf = ta.RollbackFor;
IList rollBackRules = new ArrayList();
if (rbf != null)
{
foreach (Type t in rbf)
{
RollbackRuleAttribute rule = new RollbackRuleAttribute(t);
rollBackRules.Add(rule);
}
}
Type[] nrbfc = ta.NoRollbackFor;
if (nrbfc != null)
{
foreach (Type t in nrbfc)
{
NoRollbackRuleAttribute rule = new NoRollbackRuleAttribute(t);
rollBackRules.Add(rule);
}
}
rbta.RollbackRules = rollBackRules;
return rbta;
}
}
return null;
}
public void Ancestry()
{
RollbackRuleAttribute rr = new RollbackRuleAttribute("System.Exception");
Assert.IsTrue(rr.GetDepth(typeof (DataException)) == 2);
}
public void NotFound()
{
RollbackRuleAttribute rr = new RollbackRuleAttribute("System.Data.DataException");
Assert.IsTrue(rr.GetDepth(typeof (ApplicationException)) == -1);
}
public void FoundImmediatelyWithType()
{
RollbackRuleAttribute rr = new RollbackRuleAttribute(typeof (Exception));
Assert.IsTrue(rr.GetDepth(typeof (Exception)) == 0);
}
/// <summary>
/// Strongly typed <c>Equals()</c> implementation.
/// </summary>
/// <param name="rollbackRuleAttribute">
/// The <see cref="Spring.Transaction.Interceptor.RollbackRuleAttribute"/> to compare.
/// </param>
/// <returns>
/// <b>True</b> if the input object is equal to the supplied <paramref name="rollbackRuleAttribute"/>.
/// </returns>
public bool Equals(RollbackRuleAttribute rollbackRuleAttribute)
{
return(base.Equals(rollbackRuleAttribute));
}
/// <summary>
/// Strongly typed <c>Equals()</c> implementation.
/// </summary>
/// <param name="rollbackRuleAttribute">
/// The <see cref="Spring.Transaction.Interceptor.RollbackRuleAttribute"/> to compare.
/// </param>
/// <returns>
/// <b>True</b> if the input object is equal to the supplied <paramref name="rollbackRuleAttribute"/>.
/// </returns>
public bool Equals( RollbackRuleAttribute rollbackRuleAttribute )
{
return base.Equals(rollbackRuleAttribute);
}
/// <summary>
/// Adds a <see cref="Spring.Transaction.Interceptor.RollbackRuleAttribute"/> to this
/// attributes list of rollback rules.
/// </summary>
/// <param name="rule">
/// The <see cref="Spring.Transaction.Interceptor.RollbackRuleAttribute"/> to add.
/// </param>
public void AddRollbackRule( RollbackRuleAttribute rule )
{
_rollbackRules.Add( rule );
}
/// <summary>
/// Adds a <see cref="Spring.Transaction.Interceptor.RollbackRuleAttribute"/> to this
/// attributes list of rollback rules.
/// </summary>
/// <param name="rule">
/// The <see cref="Spring.Transaction.Interceptor.RollbackRuleAttribute"/> to add.
/// </param>
public void AddRollbackRule(RollbackRuleAttribute rule)
{
_rollbackRules.Add(rule);
}
public void FoundImmediatelyWithType()
{
RollbackRuleAttribute rr = new RollbackRuleAttribute(typeof(Exception));
Assert.IsTrue(rr.GetDepth(typeof(Exception)) == 0);
}
public void Ancestry()
{
RollbackRuleAttribute rr = new RollbackRuleAttribute("System.Exception");
Assert.IsTrue(rr.GetDepth(typeof(DataException)) == 2);
}
public void NotFound()
{
RollbackRuleAttribute rr = new RollbackRuleAttribute("System.Data.DataException");
Assert.IsTrue(rr.GetDepth(typeof(ApplicationException)) == -1);
}
