| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| using System; |
| using System.Collections.Generic; |
| using Apache.NMS.ActiveMQ.Commands; |
| |
| namespace Apache.NMS.ActiveMQ.Util |
| { |
| public class ConnectionAudit |
| { |
| private readonly object mutex = new object(); |
| |
| private readonly Dictionary<ActiveMQDestination, ActiveMQMessageAudit> destinations = |
| new Dictionary<ActiveMQDestination, ActiveMQMessageAudit>(); |
| private readonly Dictionary<IDispatcher, ActiveMQMessageAudit> dispatchers = |
| new Dictionary<IDispatcher, ActiveMQMessageAudit>(); |
| |
| private bool checkForDuplicates = true; |
| public bool CheckForDuplicates |
| { |
| get { return this.checkForDuplicates; } |
| set { this.checkForDuplicates = value; } |
| } |
| |
| private int auditDepth = ActiveMQMessageAudit.DEFAULT_WINDOW_SIZE; |
| public int AuditDepth |
| { |
| get { return this.auditDepth; } |
| set { this.auditDepth = value; } |
| } |
| |
| private int auditMaximumProducerNumber = ActiveMQMessageAudit.MAXIMUM_PRODUCER_COUNT; |
| public int AuditMaximumProducerNumber |
| { |
| get { return this.auditMaximumProducerNumber; } |
| set { this.auditMaximumProducerNumber = value; } |
| } |
| |
| public ConnectionAudit() |
| { |
| } |
| |
| public ConnectionAudit(int auditDepth, int auditMaximumProducerNumber) |
| { |
| this.auditDepth = auditDepth; |
| this.auditMaximumProducerNumber = auditMaximumProducerNumber; |
| } |
| |
| public void RemoveDispatcher(IDispatcher dispatcher) |
| { |
| lock(this.mutex) |
| { |
| dispatchers.Remove(dispatcher); |
| } |
| } |
| |
| public bool IsDuplicate(IDispatcher dispatcher, Message message) |
| { |
| bool result = false; |
| |
| lock(this.mutex) |
| { |
| if (checkForDuplicates && message != null) |
| { |
| ActiveMQDestination destination = message.Destination; |
| if (destination != null) |
| { |
| if (destination.IsQueue) |
| { |
| ActiveMQMessageAudit audit = null; |
| if (!destinations.TryGetValue(destination, out audit)) |
| { |
| audit = new ActiveMQMessageAudit(auditDepth, auditMaximumProducerNumber); |
| destinations.Add(destination, audit); |
| } |
| result = audit.IsDuplicate(message.MessageId); |
| } |
| else |
| { |
| ActiveMQMessageAudit audit = null; |
| if (!dispatchers.TryGetValue(dispatcher, out audit)) |
| { |
| audit = new ActiveMQMessageAudit(auditDepth, auditMaximumProducerNumber); |
| dispatchers.Add(dispatcher, audit); |
| } |
| result = audit.IsDuplicate(message.MessageId); |
| } |
| } |
| } |
| } |
| return result; |
| } |
| |
| public void RollbackDuplicate(IDispatcher dispatcher, Message message) |
| { |
| lock(this.mutex) |
| { |
| if (checkForDuplicates && message != null) |
| { |
| ActiveMQDestination destination = message.Destination; |
| if (destination != null) |
| { |
| if (destination.IsQueue) |
| { |
| ActiveMQMessageAudit audit = null; |
| if (destinations.TryGetValue(destination, out audit)) |
| { |
| audit.Rollback(message.MessageId); |
| } |
| } |
| else |
| { |
| ActiveMQMessageAudit audit = null; |
| if (dispatchers.TryGetValue(dispatcher, out audit)) |
| { |
| audit.Rollback(message.MessageId); |
| } |
| } |
| } |
| } |
| } |
| } |
| } |
| } |
| |