/*
*
* 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.io.File;
import java.lang.reflect.Type;
import java.security.AccessControlException;
import java.security.Principal;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.UUID;
import org.apache.commons.configuration.CompositeConfiguration;
import org.apache.commons.configuration.ConfigurationException;
import org.apache.commons.configuration.PropertiesConfiguration;
import org.apache.commons.configuration.SystemConfiguration;
import org.apache.log4j.Logger;
import org.apache.qpid.AMQException;
import org.apache.qpid.server.configuration.IllegalConfigurationException;
import org.apache.qpid.server.configuration.VirtualHostConfiguration;
import org.apache.qpid.server.configuration.XmlConfigurationUtilities.MyConfiguration;
import org.apache.qpid.server.message.ServerMessage;
import org.apache.qpid.server.model.Broker;
import org.apache.qpid.server.model.ConfiguredObject;
import org.apache.qpid.server.model.Connection;
import org.apache.qpid.server.model.Exchange;
import org.apache.qpid.server.model.IntegrityViolationException;
import org.apache.qpid.server.model.LifetimePolicy;
import org.apache.qpid.server.model.Port;
import org.apache.qpid.server.model.Protocol;
import org.apache.qpid.server.model.Queue;
import org.apache.qpid.server.model.QueueType;
import org.apache.qpid.server.model.State;
import org.apache.qpid.server.model.Statistics;
import org.apache.qpid.server.model.UUIDGenerator;
import org.apache.qpid.server.model.VirtualHost;
import org.apache.qpid.server.model.VirtualHostAlias;
import org.apache.qpid.server.configuration.updater.TaskExecutor;
import org.apache.qpid.server.plugin.ExchangeType;
import org.apache.qpid.server.protocol.AMQConnectionModel;
import org.apache.qpid.server.queue.AMQQueue;
import org.apache.qpid.server.queue.AMQQueueFactory;
import org.apache.qpid.server.queue.QueueEntry;
import org.apache.qpid.server.security.SecurityManager;
import org.apache.qpid.server.security.access.Operation;
import org.apache.qpid.server.security.auth.AuthenticatedPrincipal;
import org.apache.qpid.server.stats.StatisticsGatherer;
import org.apache.qpid.server.store.MessageStore;
import org.apache.qpid.server.txn.LocalTransaction;
import org.apache.qpid.server.txn.ServerTransaction;
import org.apache.qpid.server.util.MapValueConverter;
import org.apache.qpid.server.plugin.VirtualHostFactory;
import org.apache.qpid.server.virtualhost.ExchangeExistsException;
import org.apache.qpid.server.virtualhost.ReservedExchangeNameException;
import org.apache.qpid.server.virtualhost.UnknownExchangeException;
import org.apache.qpid.server.virtualhost.VirtualHostListener;
import org.apache.qpid.server.virtualhost.VirtualHostRegistry;
import org.apache.qpid.server.virtualhost.plugins.QueueExistsException;
public final class VirtualHostAdapter extends AbstractAdapter implements VirtualHost, VirtualHostListener
{
private static final Logger LOGGER = Logger.getLogger(VirtualHostAdapter.class);
@SuppressWarnings("serial")
public static final Map<String, Type> ATTRIBUTE_TYPES = Collections.unmodifiableMap(new HashMap<String, Type>(){{
put(NAME, String.class);
put(TYPE, String.class);
put(STORE_PATH, String.class);
put(STORE_TYPE, String.class);
put(CONFIG_PATH, String.class);
put(STATE, State.class);
}});
private org.apache.qpid.server.virtualhost.VirtualHost _virtualHost;
private final Map<AMQConnectionModel, ConnectionAdapter> _connectionAdapters =
new HashMap<AMQConnectionModel, ConnectionAdapter>();
private final Map<AMQQueue, QueueAdapter> _queueAdapters =
new HashMap<AMQQueue, QueueAdapter>();
private final Map<org.apache.qpid.server.exchange.Exchange, ExchangeAdapter> _exchangeAdapters =
new HashMap<org.apache.qpid.server.exchange.Exchange, ExchangeAdapter>();
private StatisticsAdapter _statistics;
private final Broker _broker;
private final List<VirtualHostAlias> _aliases = new ArrayList<VirtualHostAlias>();
private StatisticsGatherer _brokerStatisticsGatherer;
public VirtualHostAdapter(UUID id, Map<String, Object> attributes, Broker broker, StatisticsGatherer brokerStatisticsGatherer, TaskExecutor taskExecutor)
{
super(id, null, MapValueConverter.convert(attributes, ATTRIBUTE_TYPES, false), taskExecutor, false);
_broker = broker;
_brokerStatisticsGatherer = brokerStatisticsGatherer;
validateAttributes();
addParent(Broker.class, broker);
}
private void validateAttributes()
{
String name = getName();
if (name == null || "".equals(name.trim()))
{
throw new IllegalConfigurationException("Virtual host name must be specified");
}
String configurationFile = (String) getAttribute(CONFIG_PATH);
String type = (String) getAttribute(TYPE);
boolean invalidAttributes = false;
if (configurationFile == null)
{
if (type == null)
{
invalidAttributes = true;
}
else
{
validateAttributes(type);
}
}/*
else
{
if (type != null)
{
invalidAttributes = true;
}
}*/
if (invalidAttributes)
{
throw new IllegalConfigurationException("Please specify either the 'configPath' attribute or 'type' attributes");
}
// pre-load the configuration in order to validate
try
{
createVirtualHostConfiguration(name);
}
catch(ConfigurationException e)
{
throw new IllegalConfigurationException("Failed to validate configuration", e);
}
}
private void validateAttributes(String type)
{
final VirtualHostFactory factory = VirtualHostFactory.FACTORIES.get(type);
if(factory == null)
{
throw new IllegalArgumentException("Unknown virtual host type '"+ type +"'. Valid types are: " + VirtualHostFactory.TYPES.get());
}
factory.validateAttributes(getActualAttributes());
}
private void populateExchanges()
{
Collection<org.apache.qpid.server.exchange.Exchange> actualExchanges =
_virtualHost.getExchanges();
synchronized (_exchangeAdapters)
{
for(org.apache.qpid.server.exchange.Exchange exchange : actualExchanges)
{
if(!_exchangeAdapters.containsKey(exchange))
{
_exchangeAdapters.put(exchange, new ExchangeAdapter(this,exchange));
}
}
}
}
private void populateQueues()
{
Collection<AMQQueue> actualQueues = _virtualHost.getQueues();
if ( actualQueues != null )
{
synchronized(_queueAdapters)
{
for(AMQQueue queue : actualQueues)
{
if(!_queueAdapters.containsKey(queue))
{
_queueAdapters.put(queue, new QueueAdapter(this, queue));
}
}
}
}
}
public Collection<VirtualHostAlias> getAliases()
{
return Collections.unmodifiableCollection(_aliases);
}
public Collection<Connection> getConnections()
{
synchronized(_connectionAdapters)
{
return new ArrayList<Connection>(_connectionAdapters.values());
}
}
/**
* Retrieve the ConnectionAdapter instance keyed by the AMQConnectionModel from this VirtualHost.
* @param connection the AMQConnectionModel used to index the ConnectionAdapter.
* @return the requested ConnectionAdapter.
*/
ConnectionAdapter getConnectionAdapter(AMQConnectionModel connection)
{
synchronized (_connectionAdapters)
{
return _connectionAdapters.get(connection);
}
}
public Collection<Queue> getQueues()
{
synchronized(_queueAdapters)
{
return new ArrayList<Queue>(_queueAdapters.values());
}
}
public Collection<Exchange> getExchanges()
{
synchronized (_exchangeAdapters)
{
return new ArrayList<Exchange>(_exchangeAdapters.values());
}
}
public Exchange createExchange(Map<String, Object> attributes)
throws AccessControlException, IllegalArgumentException
{
attributes = new HashMap<String, Object>(attributes);
String name = MapValueConverter.getStringAttribute(Exchange.NAME, attributes, null);
State state = MapValueConverter.getEnumAttribute(State.class, Exchange.STATE, attributes, State.ACTIVE);
boolean durable = MapValueConverter.getBooleanAttribute(Exchange.DURABLE, attributes, false);
LifetimePolicy lifetime = MapValueConverter.getEnumAttribute(LifetimePolicy.class, Exchange.LIFETIME_POLICY, attributes, LifetimePolicy.PERMANENT);
String type = MapValueConverter.getStringAttribute(Exchange.TYPE, attributes, null);
long ttl = MapValueConverter.getLongAttribute(Exchange.TIME_TO_LIVE, attributes, 0l);
attributes.remove(Exchange.NAME);
attributes.remove(Exchange.STATE);
attributes.remove(Exchange.DURABLE);
attributes.remove(Exchange.LIFETIME_POLICY);
attributes.remove(Exchange.TYPE);
attributes.remove(Exchange.TIME_TO_LIVE);
return createExchange(name, state, durable, lifetime, ttl, type, attributes);
}
public Exchange createExchange(final String name,
final State initialState,
final boolean durable,
final LifetimePolicy lifetime,
final long ttl,
final String type,
final Map<String, Object> attributes)
throws AccessControlException, IllegalArgumentException
{
checkVHostStateIsActive();
try
{
String alternateExchange = null;
if(attributes.containsKey(Exchange.ALTERNATE_EXCHANGE))
{
Object altExchangeObject = attributes.get(Exchange.ALTERNATE_EXCHANGE);
if(altExchangeObject instanceof Exchange)
{
alternateExchange = ((Exchange) altExchangeObject).getName();
}
else if(altExchangeObject instanceof UUID)
{
for(Exchange ex : getExchanges())
{
if(altExchangeObject.equals(ex.getId()))
{
alternateExchange = ex.getName();
break;
}
}
}
else if(altExchangeObject instanceof String)
{
for(Exchange ex : getExchanges())
{
if(altExchangeObject.equals(ex.getName()))
{
alternateExchange = ex.getName();
break;
}
}
if(alternateExchange == null)
{
try
{
UUID id = UUID.fromString(altExchangeObject.toString());
for(Exchange ex : getExchanges())
{
if(id.equals(ex.getId()))
{
alternateExchange = ex.getName();
break;
}
}
}
catch(IllegalArgumentException e)
{
// ignore
}
}
}
}
org.apache.qpid.server.exchange.Exchange exchange = _virtualHost.createExchange(null,
name,
type,
durable,
lifetime == LifetimePolicy.AUTO_DELETE,
alternateExchange);
synchronized (_exchangeAdapters)
{
return _exchangeAdapters.get(exchange);
}
}
catch(ExchangeExistsException e)
{
throw new IllegalArgumentException("Exchange with name '" + name + "' already exists");
}
catch(ReservedExchangeNameException e)
{
throw new UnsupportedOperationException("'" + name + "' is a reserved exchange name");
}
catch(UnknownExchangeException e)
{
throw new IllegalArgumentException("Alternate Exchange with name '" + e.getExchangeName() + "' does not exist");
}
catch(AMQException e)
{
throw new IllegalArgumentException(e);
}
}
public Queue createQueue(Map<String, Object> attributes)
throws AccessControlException, IllegalArgumentException
{
attributes = new HashMap<String, Object>(attributes);
if (attributes.containsKey(Queue.TYPE))
{
String typeAttribute = MapValueConverter.getStringAttribute(Queue.TYPE, attributes, null);
QueueType queueType = null;
try
{
queueType = QueueType.valueOf(typeAttribute.toUpperCase());
}
catch(Exception e)
{
throw new IllegalArgumentException("Unsupported queue type :" + typeAttribute);
}
if (queueType == QueueType.LVQ && attributes.get(Queue.LVQ_KEY) == null)
{
attributes.put(Queue.LVQ_KEY, AMQQueueFactory.QPID_DEFAULT_LVQ_KEY);
}
else if (queueType == QueueType.PRIORITY && attributes.get(Queue.PRIORITIES) == null)
{
attributes.put(Queue.PRIORITIES, 10);
}
else if (queueType == QueueType.SORTED && attributes.get(Queue.SORT_KEY) == null)
{
throw new IllegalArgumentException("Sort key is not specified for sorted queue");
}
}
String name = MapValueConverter.getStringAttribute(Queue.NAME, attributes, null);
State state = MapValueConverter.getEnumAttribute(State.class, Queue.STATE, attributes, State.ACTIVE);
boolean durable = MapValueConverter.getBooleanAttribute(Queue.DURABLE, attributes, false);
LifetimePolicy lifetime = MapValueConverter.getEnumAttribute(LifetimePolicy.class, Queue.LIFETIME_POLICY, attributes, LifetimePolicy.PERMANENT);
long ttl = MapValueConverter.getLongAttribute(Queue.TIME_TO_LIVE, attributes, 0l);
boolean exclusive= MapValueConverter.getBooleanAttribute(Queue.EXCLUSIVE, attributes, false);
attributes.remove(Queue.NAME);
attributes.remove(Queue.STATE);
attributes.remove(Queue.DURABLE);
attributes.remove(Queue.LIFETIME_POLICY);
attributes.remove(Queue.TIME_TO_LIVE);
return createQueue(name, state, durable, exclusive, lifetime, ttl, attributes);
}
public Queue createQueue(final String name,
final State initialState,
final boolean durable,
boolean exclusive,
final LifetimePolicy lifetime,
final long ttl,
final Map<String, Object> attributes)
throws AccessControlException, IllegalArgumentException
{
checkVHostStateIsActive();
String owner = null;
if(exclusive)
{
Principal authenticatedPrincipal = AuthenticatedPrincipal.getOptionalAuthenticatedPrincipalFromSubject(SecurityManager.getThreadSubject());
if(authenticatedPrincipal != null)
{
owner = authenticatedPrincipal.getName();
}
}
final boolean autoDelete = lifetime == LifetimePolicy.AUTO_DELETE;
try
{
AMQQueue queue =
_virtualHost.createQueue(UUIDGenerator.generateQueueUUID(name, _virtualHost.getName()), name,
durable, owner, autoDelete, exclusive, autoDelete && exclusive, attributes);
synchronized (_queueAdapters)
{
return _queueAdapters.get(queue);
}
}
catch(QueueExistsException qe)
{
throw new IllegalArgumentException("Queue with name "+name+" already exists");
}
catch(AMQException e)
{
throw new IllegalArgumentException(e);
}
}
public String getName()
{
return (String)getAttribute(NAME);
}
public String setName(final String currentName, final String desiredName)
throws IllegalStateException, AccessControlException
{
throw new IllegalStateException();
}
public String getType()
{
return (String)getAttribute(TYPE);
}
public String setType(final String currentType, final String desiredType)
throws IllegalStateException, AccessControlException
{
throw new IllegalStateException();
}
@Override
public State getActualState()
{
if (_virtualHost == null)
{
State state = (State)super.getAttribute(STATE);
if (state == null)
{
return State.INITIALISING;
}
return state;
}
else
{
org.apache.qpid.server.virtualhost.State implementationState = _virtualHost.getState();
switch(implementationState)
{
case INITIALISING:
return State.INITIALISING;
case ACTIVE:
return State.ACTIVE;
case PASSIVE:
return State.REPLICA;
case STOPPED:
return State.STOPPED;
case ERRORED:
return State.ERRORED;
default:
throw new IllegalStateException("Unsupported state:" + implementationState);
}
}
}
public boolean isDurable()
{
return true;
}
public void setDurable(final boolean durable)
throws IllegalStateException, AccessControlException, IllegalArgumentException
{
throw new IllegalStateException();
}
public LifetimePolicy getLifetimePolicy()
{
return LifetimePolicy.PERMANENT;
}
public LifetimePolicy setLifetimePolicy(final LifetimePolicy expected, final LifetimePolicy desired)
throws IllegalStateException, AccessControlException, IllegalArgumentException
{
throw new IllegalStateException();
}
public long getTimeToLive()
{
return 0;
}
public long setTimeToLive(final long expected, final long desired)
throws IllegalStateException, AccessControlException, IllegalArgumentException
{
throw new IllegalStateException();
}
public Statistics getStatistics()
{
return _statistics;
}
@Override
public <C extends ConfiguredObject> Collection<C> getChildren(Class<C> clazz)
{
if(clazz == Exchange.class)
{
return (Collection<C>) getExchanges();
}
else if(clazz == Queue.class)
{
return (Collection<C>) getQueues();
}
else if(clazz == Connection.class)
{
return (Collection<C>) getConnections();
}
else if(clazz == VirtualHostAlias.class)
{
return (Collection<C>) getAliases();
}
else
{
return Collections.emptySet();
}
}
@Override
public <C extends ConfiguredObject> C addChild(Class<C> childClass, Map<String, Object> attributes, ConfiguredObject... otherParents)
{
if(childClass == Exchange.class)
{
createExchange(attributes);
// return null to avoid double notification of VirtualHostMBean
// as we already notify it in the exchangeRegistered
return null;
}
else if(childClass == Queue.class)
{
createQueue(attributes);
// return null to avoid double notification of VirtualHostMBean
// as we already notify it in the queueRegistered
return null;
}
else if(childClass == VirtualHostAlias.class)
{
throw new UnsupportedOperationException();
}
else if(childClass == Connection.class)
{
throw new UnsupportedOperationException();
}
throw new IllegalArgumentException("Cannot create a child of class " + childClass.getSimpleName());
}
public void exchangeRegistered(org.apache.qpid.server.exchange.Exchange exchange)
{
ExchangeAdapter adapter = null;
synchronized (_exchangeAdapters)
{
if(!_exchangeAdapters.containsKey(exchange))
{
adapter = new ExchangeAdapter(this, exchange);
_exchangeAdapters.put(exchange, adapter);
}
}
if(adapter != null)
{
childAdded(adapter);
}
}
public void exchangeUnregistered(org.apache.qpid.server.exchange.Exchange exchange)
{
ExchangeAdapter adapter;
synchronized (_exchangeAdapters)
{
adapter = _exchangeAdapters.remove(exchange);
}
if(adapter != null)
{
childRemoved(adapter);
}
}
public void queueRegistered(AMQQueue queue)
{
QueueAdapter adapter = null;
synchronized (_queueAdapters)
{
if(!_queueAdapters.containsKey(queue))
{
adapter = new QueueAdapter(this, queue);
_queueAdapters.put(queue, adapter);
}
}
if(adapter != null)
{
childAdded(adapter);
}
}
public void queueUnregistered(AMQQueue queue)
{
QueueAdapter adapter;
synchronized (_queueAdapters)
{
adapter = _queueAdapters.remove(queue);
}
if(adapter != null)
{
childRemoved(adapter);
}
}
public void connectionRegistered(AMQConnectionModel connection)
{
ConnectionAdapter adapter = null;
synchronized (_connectionAdapters)
{
if(!_connectionAdapters.containsKey(connection))
{
adapter = new ConnectionAdapter(connection, getTaskExecutor());
_connectionAdapters.put(connection, adapter);
}
}
if(adapter != null)
{
childAdded(adapter);
}
}
public void connectionUnregistered(AMQConnectionModel connection)
{
ConnectionAdapter adapter;
synchronized (_connectionAdapters)
{
adapter = _connectionAdapters.remove(connection);
}
if(adapter != null)
{
// Call getSessions() first to ensure that any SessionAdapter children are cleanly removed and any
// corresponding ConfigurationChangeListener childRemoved() callback is called for child SessionAdapters.
adapter.getSessions();
childRemoved(adapter);
}
}
QueueAdapter getQueueAdapter(AMQQueue queue)
{
synchronized (_queueAdapters)
{
return _queueAdapters.get(queue);
}
}
public Collection<String> getExchangeTypes()
{
Collection<ExchangeType<? extends org.apache.qpid.server.exchange.Exchange>> types =
_virtualHost.getExchangeTypes();
Collection<String> exchangeTypes = new ArrayList<String>();
for(ExchangeType<? extends org.apache.qpid.server.exchange.Exchange> type : types)
{
exchangeTypes.add(type.getType());
}
return Collections.unmodifiableCollection(exchangeTypes);
}
public void executeTransaction(TransactionalOperation op)
{
MessageStore store = _virtualHost.getMessageStore();
final LocalTransaction txn = new LocalTransaction(store);
op.withinTransaction(new Transaction()
{
public void dequeue(final QueueEntry entry)
{
if(entry.acquire())
{
txn.dequeue(entry.getQueue(), entry.getMessage(), new ServerTransaction.Action()
{
public void postCommit()
{
entry.discard();
}
public void onRollback()
{
}
});
}
}
public void copy(QueueEntry entry, Queue queue)
{
final ServerMessage message = entry.getMessage();
final AMQQueue toQueue = ((QueueAdapter)queue).getAMQQueue();
txn.enqueue(toQueue, message, new ServerTransaction.Action()
{
public void postCommit()
{
try
{
toQueue.enqueue(message);
}
catch(AMQException e)
{
throw new RuntimeException(e);
}
}
public void onRollback()
{
}
});
}
public void move(final QueueEntry entry, Queue queue)
{
final ServerMessage message = entry.getMessage();
final AMQQueue toQueue = ((QueueAdapter)queue).getAMQQueue();
if(entry.acquire())
{
txn.enqueue(toQueue, message,
new ServerTransaction.Action()
{
public void postCommit()
{
try
{
toQueue.enqueue(message);
}
catch (AMQException e)
{
throw new RuntimeException(e);
}
}
public void onRollback()
{
entry.release();
}
});
txn.dequeue(entry.getQueue(), message,
new ServerTransaction.Action()
{
public void postCommit()
{
entry.discard();
}
public void onRollback()
{
}
});
}
}
});
txn.commit();
}
org.apache.qpid.server.virtualhost.VirtualHost getVirtualHost()
{
return _virtualHost;
}
@Override
public Object getAttribute(String name)
{
if(ID.equals(name))
{
return getId();
}
else if(STATE.equals(name))
{
return getActualState();
}
else if(DURABLE.equals(name))
{
return isDurable();
}
else if(LIFETIME_POLICY.equals(name))
{
return LifetimePolicy.PERMANENT;
}
else if(TIME_TO_LIVE.equals(name))
{
// TODO
}
else if(CREATED.equals(name))
{
// TODO
}
else if(UPDATED.equals(name))
{
// TODO
}
else if (_virtualHost != null)
{
return getAttributeFromVirtualHostImplementation(name);
}
return super.getAttribute(name);
}
private Object getAttributeFromVirtualHostImplementation(String name)
{
if(SUPPORTED_EXCHANGE_TYPES.equals(name))
{
List<String> types = new ArrayList<String>();
for(@SuppressWarnings("rawtypes") ExchangeType type : _virtualHost.getExchangeTypes())
{
types.add(type.getType());
}
return Collections.unmodifiableCollection(types);
}
else if(SUPPORTED_QUEUE_TYPES.equals(name))
{
// TODO
}
else if(QUEUE_DEAD_LETTER_QUEUE_ENABLED.equals(name))
{
return _virtualHost.getConfiguration().isDeadLetterQueueEnabled();
}
else if(HOUSEKEEPING_CHECK_PERIOD.equals(name))
{
return _virtualHost.getConfiguration().getHousekeepingCheckPeriod();
}
else if(QUEUE_MAXIMUM_DELIVERY_ATTEMPTS.equals(name))
{
return _virtualHost.getConfiguration().getMaxDeliveryCount();
}
else if(QUEUE_FLOW_CONTROL_SIZE_BYTES.equals(name))
{
return _virtualHost.getConfiguration().getCapacity();
}
else if(QUEUE_FLOW_RESUME_SIZE_BYTES.equals(name))
{
return _virtualHost.getConfiguration().getFlowResumeCapacity();
}
else if(STORE_TYPE.equals(name))
{
return _virtualHost.getMessageStore().getStoreType();
}
else if(STORE_PATH.equals(name))
{
return _virtualHost.getMessageStore().getStoreLocation();
}
else if(STORE_TRANSACTION_IDLE_TIMEOUT_CLOSE.equals(name))
{
return _virtualHost.getConfiguration().getTransactionTimeoutIdleClose();
}
else if(STORE_TRANSACTION_IDLE_TIMEOUT_WARN.equals(name))
{
return _virtualHost.getConfiguration().getTransactionTimeoutIdleWarn();
}
else if(STORE_TRANSACTION_OPEN_TIMEOUT_CLOSE.equals(name))
{
return _virtualHost.getConfiguration().getTransactionTimeoutOpenClose();
}
else if(STORE_TRANSACTION_OPEN_TIMEOUT_WARN.equals(name))
{
return _virtualHost.getConfiguration().getTransactionTimeoutOpenWarn();
}
else if(QUEUE_ALERT_REPEAT_GAP.equals(name))
{
return _virtualHost.getConfiguration().getMinimumAlertRepeatGap();
}
else if(QUEUE_ALERT_THRESHOLD_MESSAGE_AGE.equals(name))
{
return _virtualHost.getConfiguration().getMaximumMessageAge();
}
else if(QUEUE_ALERT_THRESHOLD_MESSAGE_SIZE.equals(name))
{
return _virtualHost.getConfiguration().getMaximumMessageSize();
}
else if(QUEUE_ALERT_THRESHOLD_QUEUE_DEPTH_BYTES.equals(name))
{
return _virtualHost.getConfiguration().getMaximumQueueDepth();
}
else if(QUEUE_ALERT_THRESHOLD_QUEUE_DEPTH_MESSAGES.equals(name))
{
return _virtualHost.getConfiguration().getMaximumMessageCount();
}
return super.getAttribute(name);
}
@Override
public Collection<String> getAttributeNames()
{
return AVAILABLE_ATTRIBUTES;
}
private void checkVHostStateIsActive()
{
if (!org.apache.qpid.server.virtualhost.State.ACTIVE.equals(_virtualHost.getState()))
{
throw new IllegalStateException("The virtual hosts state of " + _virtualHost.getState()
+ " does not permit this operation.");
}
}
private static class VirtualHostStatisticsAdapter extends StatisticsAdapter
{
private final org.apache.qpid.server.virtualhost.VirtualHost _vhost;
private static final Collection<String> VHOST_STATS = Arrays.asList(
VirtualHost.QUEUE_COUNT,
VirtualHost.EXCHANGE_COUNT,
VirtualHost.CONNECTION_COUNT);
public VirtualHostStatisticsAdapter(org.apache.qpid.server.virtualhost.VirtualHost virtualHost)
{
super(virtualHost);
_vhost = virtualHost;
}
@Override
public Collection<String> getStatisticNames()
{
Set<String> stats = new HashSet<String>(super.getStatisticNames());
stats.addAll(VHOST_STATS);
return stats;
}
@Override
public Object getStatistic(String name)
{
if(VirtualHost.QUEUE_COUNT.equals(name))
{
return _vhost.getQueues().size();
}
else if(VirtualHost.EXCHANGE_COUNT.equals(name))
{
return _vhost.getExchanges().size();
}
else if(VirtualHost.CONNECTION_COUNT.equals(name))
{
return _vhost.getConnectionRegistry().getConnections().size();
}
else
{
return super.getStatistic(name);
}
}
}
@Override
protected boolean setState(State currentState, State desiredState)
{
if (desiredState == State.ACTIVE)
{
try
{
activate();
}
catch(RuntimeException e)
{
changeAttribute(STATE, State.INITIALISING, State.ERRORED);
if (_broker.isManagementMode())
{
LOGGER.warn("Failed to activate virtual host: " + getName(), e);
}
else
{
throw e;
}
}
return true;
}
else if (desiredState == State.STOPPED)
{
if (_virtualHost != null)
{
try
{
_virtualHost.close();
}
finally
{
_broker.getVirtualHostRegistry().unregisterVirtualHost(_virtualHost);
}
}
return true;
}
else if (desiredState == State.DELETED)
{
String hostName = getName();
if (hostName.equals(_broker.getAttribute(Broker.DEFAULT_VIRTUAL_HOST)))
{
throw new IntegrityViolationException("Cannot delete default virtual host '" + hostName + "'");
}
if (_virtualHost != null)
{
if (_virtualHost.getState() == org.apache.qpid.server.virtualhost.State.ACTIVE)
{
setDesiredState(currentState, State.STOPPED);
}
MessageStore ms = _virtualHost.getMessageStore();
if (ms != null)
{
try
{
ms.onDelete();
}
catch(Exception e)
{
LOGGER.warn("Exception occured on store deletion", e);
}
}
_virtualHost = null;
}
setAttribute(VirtualHost.STATE, getActualState(), State.DELETED);
return true;
}
return false;
}
private void activate()
{
VirtualHostRegistry virtualHostRegistry = _broker.getVirtualHostRegistry();
String virtualHostName = getName();
try
{
VirtualHostConfiguration configuration = createVirtualHostConfiguration(virtualHostName);
String type = configuration.getType();
final VirtualHostFactory factory = VirtualHostFactory.FACTORIES.get(type);
if(factory == null)
{
throw new IllegalArgumentException("Unknown virtual host type: " + type);
}
else
{
_virtualHost = factory.createVirtualHost(_broker.getVirtualHostRegistry(),
_brokerStatisticsGatherer,
_broker.getSecurityManager(),
configuration,
this);
}
}
catch (Exception e)
{
throw new RuntimeException("Failed to create virtual host " + virtualHostName, e);
}
virtualHostRegistry.registerVirtualHost(_virtualHost);
_statistics = new VirtualHostStatisticsAdapter(_virtualHost);
_virtualHost.addVirtualHostListener(this);
populateQueues();
populateExchanges();
synchronized(_aliases)
{
for(Port port :_broker.getPorts())
{
if (Protocol.hasAmqpProtocol(port.getProtocols()))
{
_aliases.add(new VirtualHostAliasAdapter(this, port));
}
}
}
}
private VirtualHostConfiguration createVirtualHostConfiguration(String virtualHostName) throws ConfigurationException
{
VirtualHostConfiguration configuration;
String configurationFile = (String)getAttribute(CONFIG_PATH);
if (configurationFile == null)
{
final MyConfiguration basicConfiguration = new MyConfiguration();
PropertiesConfiguration config = new PropertiesConfiguration();
final String type = (String) getAttribute(TYPE);
config.addProperty("type", type);
VirtualHostFactory factory = VirtualHostFactory.FACTORIES.get(type);
if(factory != null)
{
for(Map.Entry<String,Object> entry : factory.createVirtualHostConfiguration(this).entrySet())
{
config.addProperty(entry.getKey(), entry.getValue());
}
}
basicConfiguration.addConfiguration(config);
CompositeConfiguration compositeConfiguration = new CompositeConfiguration();
compositeConfiguration.addConfiguration(new SystemConfiguration());
compositeConfiguration.addConfiguration(basicConfiguration);
configuration = new VirtualHostConfiguration(virtualHostName, compositeConfiguration , _broker);
}
else
{
if (!new File(configurationFile).exists())
{
throw new IllegalConfigurationException("Configuration file '" + configurationFile + "' does not exist");
}
configuration = new VirtualHostConfiguration(virtualHostName, new File(configurationFile) , _broker);
String type = configuration.getType();
changeAttribute(TYPE,null,type);
VirtualHostFactory factory = VirtualHostFactory.FACTORIES.get(type);
if(factory != null)
{
for(Map.Entry<String,Object> entry : factory.convertVirtualHostConfiguration(configuration.getConfig()).entrySet())
{
changeAttribute(entry.getKey(), getAttribute(entry.getKey()), entry.getValue());
}
}
}
return configuration;
}
@Override
public SecurityManager getSecurityManager()
{
return _virtualHost.getSecurityManager();
}
@Override
public MessageStore getMessageStore()
{
return _virtualHost.getMessageStore();
}
@Override
protected void changeAttributes(Map<String, Object> attributes)
{
throw new UnsupportedOperationException("Changing attributes on virtualhosts is not supported.");
}
@Override
protected void authoriseSetDesiredState(State currentState, State desiredState) throws AccessControlException
{
if(desiredState == State.DELETED)
{
if (!_broker.getSecurityManager().authoriseConfiguringBroker(getName(), VirtualHost.class, Operation.DELETE))
{
throw new AccessControlException("Deletion of virtual host is denied");
}
}
}
@Override
protected void authoriseSetAttribute(String name, Object expected, Object desired) throws AccessControlException
{
if (!_broker.getSecurityManager().authoriseConfiguringBroker(getName(), VirtualHost.class, Operation.UPDATE))
{
throw new AccessControlException("Setting of virtual host attributes is denied");
}
}
@Override
protected void authoriseSetAttributes(Map<String, Object> attributes) throws AccessControlException
{
if (!_broker.getSecurityManager().authoriseConfiguringBroker(getName(), VirtualHost.class, Operation.UPDATE))
{
throw new AccessControlException("Setting of virtual host attributes is denied");
}
}
}