/*
*
* 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;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;
import org.apache.qpid.server.plugin.ConfiguredObjectRegistration;
import org.apache.qpid.server.plugin.QpidServiceLoader;
public final class BrokerModel extends Model
{
/*
* API version for the broker model
*
* 1.0 Initial version
* 1.1 Addition of mandatory virtual host type / different types of virtual host
* 1.3 Truststore/Keystore type => trustStoreType / type => keyStoreType
* 1.4 Separate messageStoreSettings from virtualhost
* 2.0 Introduce VirtualHostNode as a child of a Broker instead of VirtualHost
*/
public static final int MODEL_MAJOR_VERSION = 2;
public static final int MODEL_MINOR_VERSION = 0;
public static final String MODEL_VERSION = MODEL_MAJOR_VERSION + "." + MODEL_MINOR_VERSION;
private static final Model MODEL_INSTANCE = new BrokerModel();
private final Map<Class<? extends ConfiguredObject>, Collection<Class<? extends ConfiguredObject>>> _parents =
new HashMap<Class<? extends ConfiguredObject>, Collection<Class<? extends ConfiguredObject>>>();
private final Map<Class<? extends ConfiguredObject>, Collection<Class<? extends ConfiguredObject>>> _children =
new HashMap<Class<? extends ConfiguredObject>, Collection<Class<? extends ConfiguredObject>>>();
private final Set<Class<? extends ConfiguredObject>> _supportedTypes =
new HashSet<Class<? extends ConfiguredObject>>();
private final ConfiguredObjectTypeRegistry _typeRegistry;
private Class<? extends ConfiguredObject> _rootCategory;
private final ConfiguredObjectFactory _objectFactory;
private BrokerModel()
{
setRootCategory(SystemConfig.class);
addRelationship(SystemConfig.class, Broker.class);
addRelationship(Broker.class, VirtualHostNode.class);
addRelationship(Broker.class, Port.class);
addRelationship(Broker.class, AccessControlProvider.class);
addRelationship(Broker.class, AuthenticationProvider.class);
addRelationship(Broker.class, GroupProvider.class);
addRelationship(Broker.class, TrustStore.class);
addRelationship(Broker.class, KeyStore.class);
addRelationship(Broker.class, Plugin.class);
addRelationship(VirtualHostNode.class, VirtualHost.class);
addRelationship(VirtualHostNode.class, RemoteReplicationNode.class);
addRelationship(VirtualHost.class, Exchange.class);
addRelationship(VirtualHost.class, Queue.class);
addRelationship(VirtualHost.class, Connection.class);
addRelationship(VirtualHost.class, VirtualHostAlias.class);
addRelationship(Port.class, VirtualHostAlias.class);
addRelationship(AuthenticationProvider.class, User.class);
addRelationship(AuthenticationProvider.class, PreferencesProvider.class);
addRelationship(User.class, GroupMember.class);
addRelationship(GroupProvider.class, Group.class);
addRelationship(Group.class, GroupMember.class);
addRelationship(Connection.class, Session.class);
addRelationship(Queue.class, Binding.class);
addRelationship(Queue.class, Consumer.class);
addRelationship(Exchange.class, Binding.class);
addRelationship(Exchange.class, Publisher.class);
addRelationship(Session.class, Consumer.class);
addRelationship(Session.class, Publisher.class);
_objectFactory = new ConfiguredObjectFactoryImpl(this);
_typeRegistry = new ConfiguredObjectTypeRegistry((new QpidServiceLoader()).instancesOf(ConfiguredObjectRegistration.class), getSupportedCategories());
}
public final ConfiguredObjectTypeRegistry getTypeRegistry()
{
return _typeRegistry;
}
public static Model getInstance()
{
return MODEL_INSTANCE;
}
@Override
public Class<? extends ConfiguredObject> getRootCategory()
{
return _rootCategory;
}
public Collection<Class<? extends ConfiguredObject>> getParentTypes(Class<? extends ConfiguredObject> child)
{
Collection<Class<? extends ConfiguredObject>> parentTypes = _parents.get(child);
return parentTypes == null ? Collections.<Class<? extends ConfiguredObject>>emptyList()
: Collections.unmodifiableCollection(parentTypes);
}
@Override
public int getMajorVersion()
{
return MODEL_MAJOR_VERSION;
}
@Override
public int getMinorVersion()
{
return MODEL_MINOR_VERSION;
}
@Override
public ConfiguredObjectFactory getObjectFactory()
{
return _objectFactory;
}
public Collection<Class<? extends ConfiguredObject>> getChildTypes(Class<? extends ConfiguredObject> parent)
{
Collection<Class<? extends ConfiguredObject>> childTypes = _children.get(parent);
return childTypes == null ? Collections.<Class<? extends ConfiguredObject>>emptyList()
: Collections.unmodifiableCollection(childTypes);
}
@Override
public Collection<Class<? extends ConfiguredObject>> getSupportedCategories()
{
return Collections.unmodifiableSet(_supportedTypes);
}
public void setRootCategory(final Class<? extends ConfiguredObject> rootCategory)
{
_rootCategory = rootCategory;
}
private void addRelationship(Class<? extends ConfiguredObject> parent, Class<? extends ConfiguredObject> child)
{
Collection<Class<? extends ConfiguredObject>> parents = _parents.get(child);
if (parents == null)
{
parents = new ArrayList<Class<? extends ConfiguredObject>>();
_parents.put(child, parents);
}
parents.add(parent);
Collection<Class<? extends ConfiguredObject>> children = _children.get(parent);
if (children == null)
{
children = new ArrayList<Class<? extends ConfiguredObject>>();
_children.put(parent, children);
}
children.add(child);
_supportedTypes.add(parent);
_supportedTypes.add(child);
}
}