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*
* 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.
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package org.apache.qpid.server.subscription;
import java.util.Map;
import java.util.concurrent.atomic.AtomicLong;
import org.apache.qpid.AMQException;
import org.apache.qpid.common.AMQPFilterTypes;
import org.apache.qpid.framing.AMQShortString;
import org.apache.qpid.framing.FieldTable;
import org.apache.qpid.protocol.AMQConstant;
import org.apache.qpid.server.AMQChannel;
import org.apache.qpid.server.filter.FilterManager;
import org.apache.qpid.server.flow.FlowCreditManager;
import org.apache.qpid.server.flow.FlowCreditManager_0_10;
import org.apache.qpid.server.protocol.AMQProtocolSession;
import org.apache.qpid.server.transport.ServerSession;
import org.apache.qpid.transport.MessageAcceptMode;
import org.apache.qpid.transport.MessageAcquireMode;
import org.apache.qpid.transport.MessageFlowMode;
public class SubscriptionFactoryImpl implements SubscriptionFactory
{
private static final AtomicLong SUB_ID_GENERATOR = new AtomicLong(0);
public Subscription createSubscription(int channelId, AMQProtocolSession protocolSession,
AMQShortString consumerTag, boolean acks, FieldTable filters,
boolean noLocal, FlowCreditManager creditManager) throws AMQException
{
AMQChannel channel = protocolSession.getChannel(channelId);
if (channel == null)
{
throw new AMQException(AMQConstant.NOT_FOUND, "channel :" + channelId + " not found in protocol session");
}
ClientDeliveryMethod clientMethod = channel.getClientDeliveryMethod();
RecordDeliveryMethod recordMethod = channel.getRecordDeliveryMethod();
return createSubscription(channel, protocolSession, consumerTag, acks, filters,
noLocal,
creditManager,
clientMethod,
recordMethod
);
}
public Subscription createSubscription(final AMQChannel channel,
final AMQProtocolSession protocolSession,
final AMQShortString consumerTag,
final boolean acks,
final FieldTable filters,
final boolean noLocal,
final FlowCreditManager creditManager,
final ClientDeliveryMethod clientMethod,
final RecordDeliveryMethod recordMethod
)
throws AMQException
{
boolean isBrowser;
if (filters != null)
{
Boolean isBrowserObj = (Boolean) filters.get(AMQPFilterTypes.NO_CONSUME.getValue());
isBrowser = (isBrowserObj != null) && isBrowserObj.booleanValue();
}
else
{
isBrowser = false;
}
if(isBrowser)
{
return new SubscriptionImpl.BrowserSubscription(channel, protocolSession, consumerTag, filters, noLocal, creditManager, clientMethod, recordMethod, getNextSubscriptionId());
}
else if(acks)
{
return new SubscriptionImpl.AckSubscription(channel, protocolSession, consumerTag, filters, noLocal, creditManager, clientMethod, recordMethod, getNextSubscriptionId());
}
else
{
return new SubscriptionImpl.NoAckSubscription(channel, protocolSession, consumerTag, filters, noLocal, creditManager, clientMethod, recordMethod, getNextSubscriptionId());
}
}
public SubscriptionImpl.GetNoAckSubscription createBasicGetNoAckSubscription(final AMQChannel channel,
final AMQProtocolSession session,
final AMQShortString consumerTag,
final FieldTable filters,
final boolean noLocal,
final FlowCreditManager creditManager,
final ClientDeliveryMethod deliveryMethod,
final RecordDeliveryMethod recordMethod) throws AMQException
{
return new SubscriptionImpl.GetNoAckSubscription(channel, session, null, null, false, creditManager, deliveryMethod, recordMethod, getNextSubscriptionId());
}
public Subscription_0_10 createSubscription(final ServerSession session,
final String destination,
final MessageAcceptMode acceptMode,
final MessageAcquireMode acquireMode,
final MessageFlowMode flowMode,
final FlowCreditManager_0_10 creditManager,
final FilterManager filterManager,
final Map<String,Object> arguments)
{
return new Subscription_0_10(session, destination, acceptMode, acquireMode,
flowMode, creditManager, filterManager, arguments, getNextSubscriptionId());
}
public static final SubscriptionFactoryImpl INSTANCE = new SubscriptionFactoryImpl();
private static long getNextSubscriptionId()
{
return SUB_ID_GENERATOR.getAndIncrement();
}
}