| /* |
| * |
| * 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. |
| * |
| */ |
| package org.apache.qpid.server.exchange.topic; |
| |
| import java.util.ArrayList; |
| import java.util.Collection; |
| import java.util.HashSet; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Set; |
| import java.util.concurrent.ConcurrentHashMap; |
| import java.util.concurrent.ConcurrentMap; |
| import java.util.concurrent.CopyOnWriteArrayList; |
| |
| import org.apache.qpid.server.exchange.AbstractExchange; |
| import org.apache.qpid.server.filter.FilterManager; |
| import org.apache.qpid.server.filter.Filterable; |
| import org.apache.qpid.server.model.Queue; |
| |
| public final class TopicExchangeResult implements TopicMatcherResult |
| { |
| private final List<AbstractExchange.BindingIdentifier> _bindings = new CopyOnWriteArrayList<>(); |
| private final Map<Queue<?>, Integer> _unfilteredQueues = new ConcurrentHashMap<>(); |
| private final ConcurrentMap<Queue<?>, Map<FilterManager,Integer>> _filteredQueues = new ConcurrentHashMap<>(); |
| private volatile ArrayList<Queue<?>> _unfilteredQueueList = new ArrayList<>(0); |
| |
| public void addUnfilteredQueue(Queue<?> queue) |
| { |
| Integer instances = _unfilteredQueues.get(queue); |
| if(instances == null) |
| { |
| _unfilteredQueues.put(queue, 1); |
| ArrayList<Queue<?>> newList = new ArrayList<>(_unfilteredQueueList); |
| newList.add(queue); |
| _unfilteredQueueList = newList; |
| } |
| else |
| { |
| _unfilteredQueues.put(queue, instances + 1); |
| } |
| } |
| |
| public void removeUnfilteredQueue(Queue<?> queue) |
| { |
| Integer instances = _unfilteredQueues.get(queue); |
| if(instances == 1) |
| { |
| _unfilteredQueues.remove(queue); |
| ArrayList<Queue<?>> newList = new ArrayList<>(_unfilteredQueueList); |
| newList.remove(queue); |
| _unfilteredQueueList = newList; |
| |
| } |
| else |
| { |
| _unfilteredQueues.put(queue,instances - 1); |
| } |
| |
| } |
| |
| public Collection<Queue<?>> getUnfilteredQueues() |
| { |
| return _unfilteredQueues.keySet(); |
| } |
| |
| public void addBinding(AbstractExchange.BindingIdentifier binding) |
| { |
| _bindings.add(binding); |
| } |
| |
| public void removeBinding(AbstractExchange.BindingIdentifier binding) |
| { |
| _bindings.remove(binding); |
| } |
| |
| public List<AbstractExchange.BindingIdentifier> getBindings() |
| { |
| return new ArrayList<>(_bindings); |
| } |
| |
| public void addFilteredQueue(Queue<?> queue, FilterManager filter) |
| { |
| Map<FilterManager,Integer> filters = _filteredQueues.get(queue); |
| if(filters == null) |
| { |
| filters = new ConcurrentHashMap<>(); |
| _filteredQueues.put(queue, filters); |
| } |
| Integer instances = filters.get(filter); |
| if(instances == null) |
| { |
| filters.put(filter,1); |
| } |
| else |
| { |
| filters.put(filter, instances + 1); |
| } |
| |
| } |
| |
| public void removeFilteredQueue(Queue<?> queue, FilterManager filter) |
| { |
| Map<FilterManager,Integer> filters = _filteredQueues.get(queue); |
| if(filters != null) |
| { |
| Integer instances = filters.get(filter); |
| if(instances != null) |
| { |
| if(instances == 1) |
| { |
| filters.remove(filter); |
| if(filters.isEmpty()) |
| { |
| _filteredQueues.remove(queue); |
| } |
| } |
| else |
| { |
| filters.put(filter, instances - 1); |
| } |
| } |
| |
| } |
| |
| } |
| |
| public void replaceQueueFilter(Queue<?> queue, |
| FilterManager oldFilter, |
| FilterManager newFilter) |
| { |
| Map<FilterManager,Integer> filters = _filteredQueues.get(queue); |
| Map<FilterManager,Integer> newFilters = new ConcurrentHashMap<>(filters); |
| Integer oldFilterInstances = filters.get(oldFilter); |
| if(oldFilterInstances == 1) |
| { |
| newFilters.remove(oldFilter); |
| } |
| else |
| { |
| newFilters.put(oldFilter, oldFilterInstances-1); |
| } |
| Integer newFilterInstances = filters.get(newFilter); |
| if(newFilterInstances == null) |
| { |
| newFilters.put(newFilter, 1); |
| } |
| else |
| { |
| newFilters.put(newFilter, newFilterInstances+1); |
| } |
| _filteredQueues.put(queue,newFilters); |
| } |
| |
| public Collection<Queue<?>> processMessage(Filterable msg, Collection<Queue<?>> queues) |
| { |
| if(queues == null) |
| { |
| if(_filteredQueues.isEmpty()) |
| { |
| return _unfilteredQueueList; |
| } |
| else |
| { |
| queues = new HashSet<Queue<?>>(); |
| } |
| } |
| else if(!(queues instanceof Set)) |
| { |
| queues = new HashSet<Queue<?>>(queues); |
| } |
| |
| queues.addAll(_unfilteredQueues.keySet()); |
| if(!_filteredQueues.isEmpty()) |
| { |
| for(Map.Entry<Queue<?>, Map<FilterManager, Integer>> entry : _filteredQueues.entrySet()) |
| { |
| if(!queues.contains(entry.getKey())) |
| { |
| for(FilterManager filter : entry.getValue().keySet()) |
| { |
| if(filter.allAllow(msg)) |
| { |
| queues.add(entry.getKey()); |
| } |
| } |
| } |
| } |
| } |
| return queues; |
| } |
| |
| } |