/*
*
* 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.virtualhost.berkeleydb;
import java.util.Map;
import java.util.Set;
import org.apache.qpid.server.model.ConfiguredObject;
import org.apache.qpid.server.model.ManagedAttributeField;
import org.apache.qpid.server.model.ManagedObject;
import org.apache.qpid.server.model.ManagedObjectFactoryConstructor;
import org.apache.qpid.server.model.VirtualHostNode;
import org.apache.qpid.server.store.MessageStore;
import org.apache.qpid.server.store.berkeleydb.BDBConfigurationStore;
import org.apache.qpid.server.store.berkeleydb.replication.ReplicatedEnvironmentFacade;
import org.apache.qpid.server.virtualhost.AbstractVirtualHost;
import com.sleepycat.je.Durability.SyncPolicy;
@ManagedObject( category = false, type = BDBHAVirtualHostImpl.VIRTUAL_HOST_TYPE )
public class BDBHAVirtualHostImpl extends AbstractVirtualHost<BDBHAVirtualHostImpl> implements BDBHAVirtualHost<BDBHAVirtualHostImpl>
{
public static final String VIRTUAL_HOST_TYPE = "BDB_HA";
private final BDBConfigurationStore _configurationStore;
@ManagedAttributeField
private String _localTransactionSynchronizationPolicy;
@ManagedAttributeField
private String _remoteTransactionSynchronizationPolicy;
@ManagedAttributeField
private Long _storeUnderfullSize;
@ManagedAttributeField
private Long _storeOverfullSize;
@ManagedObjectFactoryConstructor
public BDBHAVirtualHostImpl(final Map<String, Object> attributes, VirtualHostNode<?> virtualHostNode)
{
super(attributes, virtualHostNode);
_configurationStore = (BDBConfigurationStore) virtualHostNode.getConfigurationStore();
}
@Override
protected MessageStore createMessageStore()
{
return _configurationStore.getMessageStore();
}
@Override
public String getLocalTransactionSynchronizationPolicy()
{
return _localTransactionSynchronizationPolicy;
}
@Override
public String getRemoteTransactionSynchronizationPolicy()
{
return _remoteTransactionSynchronizationPolicy;
}
@Override
public String getDurability()
{
ReplicatedEnvironmentFacade facade = getReplicatedEnvironmentFacade();
if (facade != null)
{
return String.valueOf(facade.getMessageStoreDurability());
}
return null;
}
@Override
public boolean isCoalescingSync()
{
return SyncPolicy.SYNC.name().equals(_localTransactionSynchronizationPolicy);
}
@Override
public void onOpen()
{
ReplicatedEnvironmentFacade facade = getReplicatedEnvironmentFacade();
if (facade != null)
{
facade.setMessageStoreDurability(
SyncPolicy.valueOf(getLocalTransactionSynchronizationPolicy()),
SyncPolicy.valueOf(getRemoteTransactionSynchronizationPolicy()),
ReplicatedEnvironmentFacade.REPLICA_REPLICA_ACKNOWLEDGMENT_POLICY);
}
super.onOpen();
}
@Override
protected void validateChange(final ConfiguredObject<?> proxyForValidation, final Set<String> changedAttributes)
{
super.validateChange(proxyForValidation, changedAttributes);
if(changedAttributes.contains(LOCAL_TRANSACTION_SYNCHRONIZATION_POLICY))
{
String policy = ((BDBHAVirtualHost<?>)proxyForValidation).getLocalTransactionSynchronizationPolicy();
validateTransactionSynchronizationPolicy(policy);
}
if(changedAttributes.contains(REMOTE_TRANSACTION_SYNCHRONIZATION_POLICY))
{
String policy = ((BDBHAVirtualHost<?>)proxyForValidation).getRemoteTransactionSynchronizationPolicy();
validateTransactionSynchronizationPolicy(policy);
}
}
private void validateTransactionSynchronizationPolicy(String policy)
{
try
{
SyncPolicy.valueOf(policy);
}
catch(Exception e)
{
throw new IllegalArgumentException("Invalid transaction synchronization policy '" + policy + "'. " + e.getMessage());
}
}
private ReplicatedEnvironmentFacade getReplicatedEnvironmentFacade()
{
return (ReplicatedEnvironmentFacade) _configurationStore.getEnvironmentFacade();
}
@Override
public Long getStoreUnderfullSize()
{
return _storeUnderfullSize;
}
@Override
public Long getStoreOverfullSize()
{
return _storeOverfullSize;
}
@Override
public void onValidate()
{
super.onValidate();
validateTransactionSynchronizationPolicy(this.getLocalTransactionSynchronizationPolicy());
validateTransactionSynchronizationPolicy(this.getRemoteTransactionSynchronizationPolicy());
}
}