//
// System.Messaging
//
// Authors:
// Peter Van Isacker (sclytrack@planetinternet.be)
// Michael Barker (mike@middlesoft.co.uk)
//
// (C) 2003 Peter Van Isacker
//
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
using System;
using System.Collections;
using Mono.Messaging;
namespace System.Messaging{
public class MessageEnumerator: MarshalByRefObject, IEnumerator, IDisposable
{
private IMessageEnumerator delegateEnumerator;
private IMessageFormatter formatter;
internal MessageEnumerator (IMessageEnumerator delegateEnumerator, IMessageFormatter formatter)
{
this.delegateEnumerator = delegateEnumerator;
this.formatter = formatter;
}
public Message Current {
get {
IMessage iMsg = delegateEnumerator.Current;
if (iMsg == null)
return null;
return new Message (iMsg, null, formatter);
}
}
object IEnumerator.Current {
get { return Current; }
}
public IntPtr CursorHandle {
get { return delegateEnumerator.CursorHandle; }
}
public void Close()
{
delegateEnumerator.Close ();
}
public void Dispose()
{
Dispose (true);
GC.SuppressFinalize (this);
}
protected virtual void Dispose(bool disposing)
{
delegateEnumerator.Dispose ();
Close();
}
public bool MoveNext()
{
return delegateEnumerator.MoveNext ();
}
public bool MoveNext (TimeSpan timeout)
{
return delegateEnumerator.MoveNext (timeout);
}
public Message RemoveCurrent()
{
try {
IMessage iMsg = delegateEnumerator.RemoveCurrent ();
if (iMsg == null)
return null;
return new Message (iMsg, null, formatter);
} catch (ConnectionException e) {
throw new MessageQueueException (MessageQueueErrorCode.QueueNotAvailable, e.Message);
} catch (MessageUnavailableException e) {
throw new InvalidOperationException (e.Message, e);
} catch (MonoMessagingException e) {
throw new MessageQueueException (MessageQueueErrorCode.Generic, e.Message);
}
}
public Message RemoveCurrent (MessageQueueTransaction transaction)
{
try {
IMessage iMsg = delegateEnumerator.RemoveCurrent (transaction.DelegateTx);
if (iMsg == null)
return null;
return new Message (iMsg, null, formatter);
} catch (ConnectionException e) {
throw new MessageQueueException (MessageQueueErrorCode.QueueNotAvailable, e.Message);
} catch (MessageUnavailableException e) {
throw new InvalidOperationException (e.Message, e);
} catch (MonoMessagingException e) {
throw new MessageQueueException (MessageQueueErrorCode.Generic, e.Message);
}
}
public Message RemoveCurrent(MessageQueueTransactionType transactionType)
{
try {
IMessage iMsg = delegateEnumerator.RemoveCurrent ((Mono.Messaging.MessageQueueTransactionType) transactionType);
if (iMsg == null)
return null;
return new Message (iMsg, null, formatter);
} catch (ConnectionException e) {
throw new MessageQueueException (MessageQueueErrorCode.QueueNotAvailable, e.Message);
} catch (MessageUnavailableException e) {
throw new InvalidOperationException (e.Message, e);
} catch (MonoMessagingException e) {
throw new MessageQueueException (MessageQueueErrorCode.Generic, e.Message);
}
}
public Message RemoveCurrent (TimeSpan timeout)
{
try {
IMessage iMsg = delegateEnumerator.RemoveCurrent (timeout);
if (iMsg == null)
return null;
return new Message (iMsg, null, formatter);
} catch (ConnectionException e) {
throw new MessageQueueException (MessageQueueErrorCode.QueueNotAvailable, e.Message);
} catch (MessageUnavailableException e) {
throw new InvalidOperationException (e.Message, e);
} catch (MonoMessagingException e) {
throw new MessageQueueException (MessageQueueErrorCode.Generic, e.Message);
}
}
public Message RemoveCurrent (TimeSpan timeout,
MessageQueueTransaction transaction)
{
try {
IMessage iMsg = delegateEnumerator.RemoveCurrent (timeout,
transaction.DelegateTx);
if (iMsg == null)
return null;
return new Message (iMsg, null, formatter);
} catch (ConnectionException e) {
throw new MessageQueueException (MessageQueueErrorCode.QueueNotAvailable, e.Message);
} catch (MessageUnavailableException e) {
throw new InvalidOperationException (e.Message, e);
} catch (MonoMessagingException e) {
throw new MessageQueueException (MessageQueueErrorCode.Generic, e.Message);
}
}
public Message RemoveCurrent (TimeSpan timeout, MessageQueueTransactionType transactionType)
{
try {
IMessage iMsg = delegateEnumerator.RemoveCurrent (timeout,
(Mono.Messaging.MessageQueueTransactionType) transactionType);
if (iMsg == null)
return null;
return new Message (iMsg, null, formatter);
} catch (ConnectionException e) {
throw new MessageQueueException (MessageQueueErrorCode.QueueNotAvailable, e.Message);
} catch (MessageUnavailableException e) {
throw new InvalidOperationException (e.Message, e);
} catch (MonoMessagingException e) {
throw new MessageQueueException (MessageQueueErrorCode.Generic, e.Message);
}
}
public void Reset()
{
Close ();
}
~MessageEnumerator()
{
Dispose(false);
}
}
}
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