| /* |
| * |
| * 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.binding; |
| |
| import java.util.Collection; |
| import java.util.Collections; |
| import java.util.HashMap; |
| import java.util.Map; |
| import java.util.concurrent.atomic.AtomicLong; |
| |
| import com.google.common.util.concurrent.Futures; |
| import com.google.common.util.concurrent.ListenableFuture; |
| |
| import org.apache.qpid.server.configuration.IllegalConfigurationException; |
| import org.apache.qpid.server.configuration.updater.Task; |
| import org.apache.qpid.server.exchange.AbstractExchange; |
| import org.apache.qpid.server.filter.AMQInvalidArgumentException; |
| import org.apache.qpid.server.filter.FilterSupport; |
| import org.apache.qpid.server.logging.EventLogger; |
| import org.apache.qpid.server.logging.messages.BindingMessages; |
| import org.apache.qpid.server.logging.subjects.BindingLogSubject; |
| import org.apache.qpid.server.model.AbstractConfiguredObject; |
| import org.apache.qpid.server.model.Binding; |
| import org.apache.qpid.server.model.ConfiguredObject; |
| import org.apache.qpid.server.model.Exchange; |
| import org.apache.qpid.server.model.ManagedAttributeField; |
| import org.apache.qpid.server.model.Queue; |
| import org.apache.qpid.server.model.State; |
| import org.apache.qpid.server.model.StateTransition; |
| import org.apache.qpid.server.security.access.Operation; |
| |
| public class BindingImpl |
| extends AbstractConfiguredObject<BindingImpl> |
| implements org.apache.qpid.server.model.Binding<BindingImpl> |
| { |
| private final String _bindingKey; |
| private final Queue<?> _queue; |
| private final Exchange<?> _exchange; |
| @ManagedAttributeField |
| private Map<String, Object> _arguments; |
| private final AtomicLong _matches = new AtomicLong(); |
| private BindingLogSubject _logSubject; |
| |
| public BindingImpl(Map<String, Object> attributes, Queue<?> queue, Exchange<?> exchange) |
| { |
| super(parentsMap(queue,exchange),stripEmptyArguments(enhanceWithDurable(attributes, queue, exchange))); |
| _bindingKey = getName(); |
| _queue = queue; |
| _exchange = exchange; |
| } |
| |
| private static Map<String, Object> stripEmptyArguments(final Map<String, Object> attributes) |
| { |
| Map<String,Object> returnVal; |
| if(attributes != null |
| && attributes.containsKey(Binding.ARGUMENTS) |
| && (attributes.get(Binding.ARGUMENTS) instanceof Map) |
| && ((Map)(attributes.get(Binding.ARGUMENTS))).isEmpty()) |
| { |
| returnVal = new HashMap<>(attributes); |
| returnVal.remove(Binding.ARGUMENTS); |
| } |
| else |
| { |
| returnVal = attributes; |
| } |
| |
| return returnVal; |
| } |
| |
| @Override |
| protected void onOpen() |
| { |
| super.onOpen(); |
| _logSubject = new BindingLogSubject(_bindingKey,_exchange,_queue); |
| |
| getEventLogger().message(_logSubject, BindingMessages.CREATED(String.valueOf(getArguments()), |
| getArguments() != null |
| && !getArguments().isEmpty())); |
| if(_exchange instanceof AbstractExchange) |
| { |
| ((AbstractExchange)_exchange).doAddBinding(this); |
| } |
| } |
| |
| private static Map<String, Object> enhanceWithDurable(Map<String, Object> attributes, |
| final Queue<?> queue, |
| final Exchange<?> exchange) |
| { |
| if(!attributes.containsKey(DURABLE)) |
| { |
| attributes = new HashMap<>(attributes); |
| attributes.put(DURABLE, queue.isDurable() && exchange.isDurable()); |
| } |
| return attributes; |
| } |
| |
| @Override |
| public String getBindingKey() |
| { |
| return _bindingKey; |
| } |
| |
| @Override |
| public Queue<?> getQueue() |
| { |
| return _queue; |
| } |
| |
| @Override |
| public Exchange<?> getExchange() |
| { |
| return _exchange; |
| } |
| |
| public Map<String, Object> getArguments() |
| { |
| return _arguments; |
| } |
| |
| public void incrementMatches() |
| { |
| _matches.incrementAndGet(); |
| } |
| |
| public long getMatches() |
| { |
| return _matches.get(); |
| } |
| |
| @Override |
| public <C extends ConfiguredObject> Collection<C> getChildren(final Class<C> clazz) |
| { |
| return Collections.emptySet(); |
| } |
| |
| @Override |
| public boolean equals(final Object o) |
| { |
| if (this == o) |
| { |
| return true; |
| } |
| |
| if (!(o instanceof BindingImpl)) |
| { |
| return false; |
| } |
| |
| final BindingImpl binding = (BindingImpl) o; |
| |
| return (_bindingKey == null ? binding.getBindingKey() == null : _bindingKey.equals(binding.getBindingKey())) |
| && (_exchange == null ? binding.getExchange() == null : _exchange.equals(binding.getExchange())) |
| && (_queue == null ? binding.getQueue() == null : _queue.equals(binding.getQueue())); |
| } |
| |
| @Override |
| public int hashCode() |
| { |
| int result = _bindingKey == null ? 1 : _bindingKey.hashCode(); |
| result = 31 * result + (_queue == null ? 3 : _queue.hashCode()); |
| result = 31 * result + (_exchange == null ? 5 : _exchange.hashCode()); |
| return result; |
| } |
| |
| @Override |
| public String toString() |
| { |
| return "Binding{bindingKey="+_bindingKey+", exchange="+_exchange+", queue="+_queue+", id= " + getId() + " }"; |
| } |
| |
| @StateTransition(currentState = State.ACTIVE, desiredState = State.DELETED) |
| private ListenableFuture<Void> doDelete() |
| { |
| ListenableFuture<Void> removeBinding = _exchange.removeBindingAsync(this); |
| return doAfter(removeBinding, new Runnable() |
| { |
| @Override |
| public void run() |
| { |
| getEventLogger().message(_logSubject, BindingMessages.DELETED()); |
| deleted(); |
| setState(State.DELETED); |
| } |
| }); |
| } |
| |
| @StateTransition(currentState = State.UNINITIALIZED, desiredState = State.ACTIVE) |
| private ListenableFuture<Void> activate() |
| { |
| setState(State.ACTIVE); |
| return Futures.immediateFuture(null); |
| } |
| |
| private EventLogger getEventLogger() |
| { |
| return _exchange.getEventLogger(); |
| } |
| |
| public void setArguments(final Map<String, Object> arguments) |
| { |
| runTask(new Task<Void, RuntimeException>() |
| { |
| @Override |
| public Void execute() |
| { |
| _arguments = arguments; |
| BindingImpl.super.setAttributes(Collections.<String, Object>singletonMap(ARGUMENTS, arguments)); |
| return null; |
| } |
| |
| @Override |
| public String getObject() |
| { |
| return BindingImpl.this.toString(); |
| } |
| |
| @Override |
| public String getAction() |
| { |
| return "set arguments"; |
| } |
| |
| @Override |
| public String getArguments() |
| { |
| return arguments.toString(); |
| } |
| } |
| ); |
| |
| } |
| |
| @Override |
| public void validateOnCreate() |
| { |
| authorise(Operation.CREATE); |
| |
| Queue<?> queue = getQueue(); |
| Map<String, Object> arguments = getArguments(); |
| if (arguments!=null && !arguments.isEmpty() && FilterSupport.argumentsContainFilter(arguments)) |
| { |
| try |
| { |
| FilterSupport.createMessageFilter(arguments, queue); |
| } |
| catch (AMQInvalidArgumentException e) |
| { |
| throw new IllegalConfigurationException(e.getMessage(), e); |
| } |
| } |
| } |
| |
| |
| } |