| /* |
| * |
| * 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.model.adapter; |
| |
| import java.security.AccessControlException; |
| import java.util.ArrayList; |
| import java.util.Collection; |
| import java.util.Collections; |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| import org.apache.qpid.AMQException; |
| import org.apache.qpid.AMQInternalException; |
| import org.apache.qpid.AMQSecurityException; |
| import org.apache.qpid.protocol.AMQConstant; |
| import org.apache.qpid.server.binding.Binding; |
| import org.apache.qpid.server.exchange.ExchangeRegistry; |
| import org.apache.qpid.server.model.ConfiguredObject; |
| import org.apache.qpid.server.model.Exchange; |
| import org.apache.qpid.server.model.LifetimePolicy; |
| import org.apache.qpid.server.model.Publisher; |
| import org.apache.qpid.server.model.Queue; |
| import org.apache.qpid.server.model.State; |
| import org.apache.qpid.server.model.Statistics; |
| import org.apache.qpid.server.queue.AMQQueue; |
| import org.apache.qpid.server.util.MapValueConverter; |
| import org.apache.qpid.server.virtualhost.VirtualHost; |
| |
| final class ExchangeAdapter extends AbstractAdapter implements Exchange, org.apache.qpid.server.exchange.Exchange.BindingListener |
| { |
| |
| private final org.apache.qpid.server.exchange.Exchange _exchange; |
| private final Map<Binding, BindingAdapter> _bindingAdapters = |
| new HashMap<Binding, BindingAdapter>(); |
| private VirtualHostAdapter _vhost; |
| private final ExchangeStatistics _statistics; |
| |
| public ExchangeAdapter(final VirtualHostAdapter virtualHostAdapter, |
| final org.apache.qpid.server.exchange.Exchange exchange) |
| { |
| super(exchange.getId(), virtualHostAdapter.getTaskExecutor()); |
| _statistics = new ExchangeStatistics(); |
| _vhost = virtualHostAdapter; |
| _exchange = exchange; |
| addParent(org.apache.qpid.server.model.VirtualHost.class, virtualHostAdapter); |
| |
| exchange.addBindingListener(this); |
| populateBindings(); |
| } |
| |
| private void populateBindings() |
| { |
| Collection<Binding> actualBindings = _exchange.getBindings(); |
| synchronized (_bindingAdapters) |
| { |
| for(Binding binding : actualBindings) |
| { |
| if(!_bindingAdapters.containsKey(binding)) |
| { |
| QueueAdapter queueAdapter = _vhost.getQueueAdapter(binding.getQueue()); |
| BindingAdapter adapter = new BindingAdapter(binding, this, queueAdapter); |
| _bindingAdapters.put(binding, adapter); |
| |
| queueAdapter.bindingRegistered(binding, adapter); |
| } |
| } |
| } |
| |
| } |
| |
| public String getExchangeType() |
| { |
| return _exchange.getType().getName().toString(); |
| } |
| |
| public Collection<org.apache.qpid.server.model.Binding> getBindings() |
| { |
| synchronized (_bindingAdapters) |
| { |
| return new ArrayList<org.apache.qpid.server.model.Binding>(_bindingAdapters.values()); |
| } |
| |
| } |
| |
| public Collection<Publisher> getPublishers() |
| { |
| // TODO |
| return Collections.emptyList(); |
| } |
| |
| |
| public org.apache.qpid.server.model.Binding createBinding(Queue queue, |
| Map<String, Object> attributes) |
| throws AccessControlException, IllegalStateException |
| { |
| attributes = new HashMap<String, Object>(attributes); |
| String bindingKey = MapValueConverter.getStringAttribute(org.apache.qpid.server.model.Binding.NAME, attributes, ""); |
| Map<String, Object> bindingArgs = MapValueConverter.getMapAttribute(org.apache.qpid.server.model.Binding.ARGUMENTS, attributes, Collections.<String,Object>emptyMap()); |
| |
| attributes.remove(org.apache.qpid.server.model.Binding.NAME); |
| attributes.remove(org.apache.qpid.server.model.Binding.ARGUMENTS); |
| |
| return createBinding(bindingKey, queue, bindingArgs, attributes); |
| |
| } |
| |
| public org.apache.qpid.server.model.Binding createBinding(String bindingKey, Queue queue, |
| Map<String, Object> bindingArguments, |
| Map<String, Object> attributes) |
| throws AccessControlException, IllegalStateException |
| { |
| VirtualHost virtualHost = _vhost.getVirtualHost(); |
| |
| |
| AMQQueue amqQueue = ((QueueAdapter)queue).getAMQQueue(); |
| |
| try |
| { |
| if(!virtualHost.getBindingFactory().addBinding(bindingKey, amqQueue, _exchange, bindingArguments)) |
| { |
| Binding oldBinding = virtualHost.getBindingFactory().getBinding(bindingKey, amqQueue, _exchange, |
| bindingArguments); |
| |
| Map<String, Object> oldArgs = oldBinding.getArguments(); |
| if((oldArgs == null && !bindingArguments.isEmpty()) || (oldArgs != null && !oldArgs.equals(bindingArguments))) |
| { |
| virtualHost.getBindingFactory().replaceBinding(oldBinding.getId(), bindingKey, amqQueue, _exchange, bindingArguments); |
| } |
| } |
| Binding binding = virtualHost.getBindingFactory().getBinding(bindingKey, amqQueue, _exchange, bindingArguments); |
| |
| synchronized (_bindingAdapters) |
| { |
| return binding == null ? null : _bindingAdapters.get(binding); |
| } |
| } |
| catch(AMQSecurityException e) |
| { |
| throw new AccessControlException(e.toString()); |
| } |
| catch(AMQInternalException e) |
| { |
| throw new IllegalStateException(e); |
| } |
| } |
| |
| public void delete() |
| { |
| try |
| { |
| ExchangeRegistry exchangeRegistry = _vhost.getVirtualHost().getExchangeRegistry(); |
| if (exchangeRegistry.isReservedExchangeName(getName())) |
| { |
| throw new UnsupportedOperationException("'" + getName() + "' is a reserved exchange and can't be deleted"); |
| } |
| |
| if(_exchange.hasReferrers()) |
| { |
| throw new AMQException( AMQConstant.NOT_ALLOWED, "Exchange in use as an alternate exchange", null); |
| } |
| |
| synchronized(exchangeRegistry) |
| { |
| exchangeRegistry.unregisterExchange(getName(), false); |
| } |
| } |
| catch(AMQException e) |
| { |
| throw new IllegalStateException(e); |
| } |
| } |
| |
| public String getName() |
| { |
| return _exchange.getName(); |
| } |
| |
| public String setName(final String currentName, final String desiredName) |
| throws IllegalStateException, AccessControlException |
| { |
| return null; //TODO |
| } |
| |
| public State getActualState() |
| { |
| return null; //TODO |
| } |
| |
| public boolean isDurable() |
| { |
| return _exchange.isDurable(); |
| } |
| |
| public void setDurable(final boolean durable) |
| throws IllegalStateException, AccessControlException, IllegalArgumentException |
| { |
| //TODO |
| } |
| |
| public LifetimePolicy getLifetimePolicy() |
| { |
| return _exchange.isAutoDelete() ? LifetimePolicy.AUTO_DELETE : LifetimePolicy.PERMANENT; |
| } |
| |
| public LifetimePolicy setLifetimePolicy(final LifetimePolicy expected, final LifetimePolicy desired) |
| throws IllegalStateException, AccessControlException, IllegalArgumentException |
| { |
| return null; //TODO |
| } |
| |
| public long getTimeToLive() |
| { |
| return 0; //TODO |
| } |
| |
| public long setTimeToLive(final long expected, final long desired) |
| throws IllegalStateException, AccessControlException, IllegalArgumentException |
| { |
| return 0; //TODO |
| } |
| |
| public Statistics getStatistics() |
| { |
| return _statistics; |
| } |
| |
| @Override |
| public <C extends ConfiguredObject> Collection<C> getChildren(Class<C> clazz) |
| { |
| if(clazz == org.apache.qpid.server.model.Binding.class) |
| { |
| return (Collection<C>) getBindings(); |
| } |
| else |
| { |
| return Collections.emptySet(); |
| } |
| } |
| |
| @Override |
| public <C extends ConfiguredObject> C addChild(Class<C> childClass, Map<String, Object> attributes, ConfiguredObject... otherParents) |
| { |
| if(childClass == org.apache.qpid.server.model.Binding.class) |
| { |
| if(otherParents != null && otherParents.length == 1 && otherParents[0] instanceof Queue) |
| { |
| Queue queue = (Queue) otherParents[0]; |
| if(queue.getParent(org.apache.qpid.server.model.VirtualHost.class) == getParent(org.apache.qpid.server.model.VirtualHost.class)) |
| { |
| return (C) createBinding(queue, attributes); |
| } |
| else |
| { |
| throw new IllegalArgumentException("Queue and Exchange parents of a binding must be on same virtual host"); |
| } |
| } |
| else |
| { |
| throw new IllegalArgumentException("Other parent must be a queue"); |
| } |
| } |
| else |
| { |
| throw new IllegalArgumentException(); |
| } |
| } |
| |
| public void bindingAdded(org.apache.qpid.server.exchange.Exchange exchange, Binding binding) |
| { |
| BindingAdapter adapter = null; |
| synchronized (_bindingAdapters) |
| { |
| if(!_bindingAdapters.containsKey(binding)) |
| { |
| QueueAdapter queueAdapter = _vhost.getQueueAdapter(binding.getQueue()); |
| adapter = new BindingAdapter(binding, this, queueAdapter); |
| _bindingAdapters.put(binding,adapter); |
| queueAdapter.bindingRegistered(binding,adapter); |
| } |
| } |
| if(adapter != null) |
| { |
| childAdded(adapter); |
| } |
| } |
| |
| public void bindingRemoved(org.apache.qpid.server.exchange.Exchange exchange, Binding binding) |
| { |
| BindingAdapter adapter = null; |
| synchronized (_bindingAdapters) |
| { |
| adapter = _bindingAdapters.remove(binding); |
| } |
| if(adapter != null) |
| { |
| _vhost.getQueueAdapter(binding.getQueue()).bindingUnregistered(binding); |
| childRemoved(adapter); |
| } |
| } |
| |
| org.apache.qpid.server.exchange.Exchange getExchange() |
| { |
| return _exchange; |
| } |
| |
| @Override |
| public Object getAttribute(String name) |
| { |
| if(ID.equals(name)) |
| { |
| return getId(); |
| } |
| else if(NAME.equals(name)) |
| { |
| return getName(); |
| } |
| else if(STATE.equals(name)) |
| { |
| return State.ACTIVE; |
| } |
| else if(DURABLE.equals(name)) |
| { |
| return isDurable(); |
| } |
| else if(LIFETIME_POLICY.equals(name)) |
| { |
| return _exchange.isAutoDelete() ? LifetimePolicy.AUTO_DELETE : LifetimePolicy.PERMANENT; |
| } |
| else if(TIME_TO_LIVE.equals(name)) |
| { |
| |
| } |
| else if(CREATED.equals(name)) |
| { |
| |
| } |
| else if(UPDATED.equals(name)) |
| { |
| |
| } |
| else if(ALTERNATE_EXCHANGE.equals(name)) |
| { |
| return _exchange.getAlternateExchange(); |
| } |
| else if(TYPE.equals(name)) |
| { |
| return _exchange.getType().getName().asString(); |
| } |
| return super.getAttribute(name); |
| } |
| |
| @Override |
| public Collection<String> getAttributeNames() |
| { |
| return AVAILABLE_ATTRIBUTES; |
| } |
| |
| @Override |
| protected boolean setState(State currentState, State desiredState) |
| { |
| if (desiredState == State.DELETED) |
| { |
| delete(); |
| return true; |
| } |
| return false; |
| } |
| |
| private class ExchangeStatistics implements Statistics |
| { |
| |
| public Collection<String> getStatisticNames() |
| { |
| return AVAILABLE_STATISTICS; |
| } |
| |
| public Object getStatistic(String name) |
| { |
| if(BINDING_COUNT.equals(name)) |
| { |
| return _exchange.getBindingCount(); |
| } |
| else if(BYTES_DROPPED.equals(name)) |
| { |
| return _exchange.getByteDrops(); |
| } |
| else if(BYTES_IN.equals(name)) |
| { |
| return _exchange.getByteReceives(); |
| } |
| else if(MESSAGES_DROPPED.equals(name)) |
| { |
| return _exchange.getMsgDrops(); |
| } |
| else if(MESSAGES_IN.equals(name)) |
| { |
| return _exchange.getMsgReceives(); |
| } |
| else if(PRODUCER_COUNT.equals(name)) |
| { |
| |
| } |
| else if(STATE_CHANGED.equals(name)) |
| { |
| |
| } |
| return null; // TODO - Implement |
| } |
| } |
| } |
