| /* |
| * |
| * 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.management.amqp; |
| |
| import java.security.AccessControlException; |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.List; |
| import java.util.Map; |
| |
| import org.apache.qpid.server.consumer.ConsumerImpl; |
| import org.apache.qpid.server.consumer.ConsumerTarget; |
| import org.apache.qpid.server.message.InstanceProperties; |
| import org.apache.qpid.server.message.MessageDestination; |
| import org.apache.qpid.server.message.MessageInstance; |
| import org.apache.qpid.server.message.MessageSource; |
| import org.apache.qpid.server.message.ServerMessage; |
| import org.apache.qpid.server.message.internal.InternalMessage; |
| import org.apache.qpid.server.model.NamedAddressSpace; |
| import org.apache.qpid.server.protocol.AMQSessionModel; |
| import org.apache.qpid.server.queue.AbstractQueue; |
| import org.apache.qpid.server.security.SecurityToken; |
| import org.apache.qpid.server.store.StorableMessageMetaData; |
| import org.apache.qpid.server.txn.ServerTransaction; |
| import org.apache.qpid.server.util.Action; |
| |
| class ManagementNodeConsumer implements ConsumerImpl, MessageDestination |
| { |
| private final long _id = ConsumerImpl.CONSUMER_NUMBER_GENERATOR.getAndIncrement(); |
| private final ManagementNode _managementNode; |
| private final List<ManagementResponse> _queue = Collections.synchronizedList(new ArrayList<ManagementResponse>()); |
| private final ConsumerTarget _target; |
| private final String _name; |
| |
| |
| public ManagementNodeConsumer(final String consumerName, final ManagementNode managementNode, ConsumerTarget target) |
| { |
| _name = consumerName; |
| _managementNode = managementNode; |
| _target = target; |
| } |
| |
| @Override |
| public void externalStateChange() |
| { |
| if(!_queue.isEmpty()) |
| { |
| _target.notifyWork(); |
| } |
| } |
| |
| @Override |
| public AbstractQueue.MessageContainer pullMessage() |
| { |
| if (!_queue.isEmpty()) |
| { |
| |
| final ManagementResponse managementResponse = _queue.get(0); |
| if (!_target.isSuspended() && _target.allocateCredit(managementResponse.getMessage())) |
| { |
| _queue.remove(0); |
| return new AbstractQueue.MessageContainer(managementResponse, null); |
| } |
| } |
| return null; |
| } |
| |
| @Override |
| public void setNotifyWorkDesired(final boolean desired) |
| { |
| if (desired && !_queue.isEmpty()) |
| { |
| _target.notifyWork(); |
| } |
| } |
| |
| @Override |
| public long getBytesOut() |
| { |
| return 0; |
| } |
| |
| @Override |
| public long getMessagesOut() |
| { |
| return 0; |
| } |
| |
| @Override |
| public long getUnacknowledgedBytes() |
| { |
| return 0; |
| } |
| |
| @Override |
| public long getUnacknowledgedMessages() |
| { |
| return 0; |
| } |
| |
| @Override |
| public AMQSessionModel getSessionModel() |
| { |
| return _target.getSessionModel(); |
| } |
| |
| @Override |
| public MessageSource getMessageSource() |
| { |
| return _managementNode; |
| } |
| |
| @Override |
| public long getConsumerNumber() |
| { |
| return _id; |
| } |
| |
| @Override |
| public boolean isSuspended() |
| { |
| return false; |
| } |
| |
| @Override |
| public boolean isClosed() |
| { |
| return false; |
| } |
| |
| @Override |
| public boolean acquires() |
| { |
| return true; |
| } |
| |
| @Override |
| public boolean seesRequeues() |
| { |
| return false; |
| } |
| |
| @Override |
| public void close() |
| { |
| _managementNode.unregisterConsumer(this); |
| } |
| |
| |
| @Override |
| public boolean isActive() |
| { |
| return false; |
| } |
| |
| @Override |
| public NamedAddressSpace getAddressSpace() |
| { |
| return _managementNode.getAddressSpace(); |
| } |
| |
| @Override |
| public void authorisePublish(final SecurityToken token, final Map<String, Object> arguments) |
| throws AccessControlException |
| { |
| _managementNode.authorisePublish(token, arguments); |
| } |
| |
| @Override |
| public String getName() |
| { |
| return _name; |
| } |
| |
| @Override |
| public <M extends ServerMessage<? extends StorableMessageMetaData>> int send(final M message, |
| final String routingAddress, |
| final InstanceProperties instanceProperties, |
| final ServerTransaction txn, |
| final Action<? super MessageInstance> postEnqueueAction) |
| { |
| send((InternalMessage)message); |
| return 1; |
| } |
| |
| @Override |
| public ConsumerTarget getTarget() |
| { |
| return _target; |
| } |
| |
| ManagementNode getManagementNode() |
| { |
| return _managementNode; |
| } |
| |
| void send(final InternalMessage response) |
| { |
| final ManagementResponse responseEntry = new ManagementResponse(this, response); |
| _queue.add(responseEntry); |
| _target.notifyWork(); |
| } |
| } |