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/*
* Copyright (c) 2004 - 2012 Eike Stepper (Berlin, Germany) and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Eike Stepper - initial API and implementation
*/
package org.eclipse.emf.cdo.server.internal.admin;
import org.eclipse.emf.cdo.common.CDOCommonRepository.State;
import org.eclipse.emf.cdo.common.CDOCommonRepository.Type;
import org.eclipse.emf.cdo.server.CDOServerUtil;
import org.eclipse.emf.cdo.server.IRepository;
import org.eclipse.emf.cdo.server.internal.admin.bundle.OM;
import org.eclipse.emf.cdo.server.internal.admin.protocol.CDOAdminServerProtocol;
import org.eclipse.emf.cdo.server.spi.admin.CDOAdminHandler;
import org.eclipse.emf.cdo.spi.common.admin.AbstractCDOAdmin;
import org.eclipse.emf.cdo.spi.server.RepositoryFactory;
import org.eclipse.net4j.signal.ISignalProtocol;
import org.eclipse.net4j.util.container.ContainerEventAdapter;
import org.eclipse.net4j.util.container.IContainer;
import org.eclipse.net4j.util.container.IManagedContainer;
import org.eclipse.net4j.util.container.IPluginContainer;
import org.eclipse.net4j.util.event.IListener;
import org.eclipse.net4j.util.lifecycle.LifecycleUtil;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;
/**
* @author Eike Stepper
*/
public class CDOAdminServer extends AbstractCDOAdmin
{
private final IManagedContainer container;
private final IListener containerListener = new ContainerEventAdapter<Object>()
{
@Override
protected void onAdded(IContainer<Object> container, Object element)
{
if (element instanceof IRepository)
{
IRepository repository = (IRepository)element;
repositoryAdded(repository);
}
}
@Override
protected void onRemoved(IContainer<Object> container, Object element)
{
if (element instanceof IRepository)
{
IRepository repository = (IRepository)element;
removeRepository(repository);
}
}
};
private final Set<CDOAdminServerProtocol> protocols = new HashSet<CDOAdminServerProtocol>();
public CDOAdminServer(IManagedContainer container, long timeout)
{
super(timeout);
this.container = container;
}
public final IManagedContainer getContainer()
{
return container;
}
public void registerProtocol(CDOAdminServerProtocol protocol)
{
synchronized (protocols)
{
protocols.add(protocol);
}
}
public void deregisterProtocol(CDOAdminServerProtocol protocol)
{
synchronized (protocols)
{
protocols.remove(protocol);
}
}
@Override
protected boolean doCreateRepository(String name, String type, Map<String, Object> properties)
{
CDOAdminHandler handler = getAdminHandler(type);
IRepository delegate = handler.createRepository(name, properties);
CDOServerUtil.addRepository(container, delegate);
return true;
}
@Override
protected boolean doDeleteRepository(String name, String type)
{
CDOAdminHandler handler = getAdminHandler(type);
CDOAdminServerRepository repository = (CDOAdminServerRepository)getRepository(name);
if (repository == null)
{
return false;
}
IRepository delegate = repository.getDelegate();
LifecycleUtil.deactivate(delegate);
handler.deleteRepository(delegate);
return true;
}
@Override
protected void doActivate() throws Exception
{
super.doActivate();
for (Object element : container.getElements(RepositoryFactory.PRODUCT_GROUP))
{
if (element instanceof IRepository)
{
IRepository delegate = (IRepository)element;
CDOAdminServerRepository repository = new CDOAdminServerRepository(this, delegate);
addElement(repository);
}
}
container.addListener(containerListener);
}
@Override
protected void doDeactivate() throws Exception
{
container.removeListener(containerListener);
super.doDeactivate();
}
protected void repositoryAdded(IRepository delegate)
{
CDOAdminServerRepository repository = new CDOAdminServerRepository(this, delegate);
if (addElement(repository))
{
for (CDOAdminServerProtocol protocol : getProtocols())
{
try
{
protocol.sendRepositoryAdded(repository);
}
catch (Exception ex)
{
handleNotificationProblem(protocol, ex);
}
}
}
}
protected void removeRepository(IRepository delegate)
{
String name = delegate.getName();
CDOAdminServerRepository repository = (CDOAdminServerRepository)getRepository(name);
if (removeElement(repository))
{
repository.dispose();
for (CDOAdminServerProtocol protocol : getProtocols())
{
try
{
protocol.sendRepositoryRemoved(name);
}
catch (Exception ex)
{
handleNotificationProblem(protocol, ex);
}
}
}
}
protected void repositoryTypeChanged(String name, Type oldType, Type newType)
{
for (CDOAdminServerProtocol protocol : getProtocols())
{
try
{
protocol.sendRepositoryTypeChanged(name, oldType, newType);
}
catch (Exception ex)
{
handleNotificationProblem(protocol, ex);
}
}
}
protected void repositoryStateChanged(String name, State oldState, State newState)
{
for (CDOAdminServerProtocol protocol : getProtocols())
{
try
{
protocol.sendRepositoryStateChanged(name, oldState, newState);
}
catch (Exception ex)
{
handleNotificationProblem(protocol, ex);
}
}
}
protected void handleNotificationProblem(CDOAdminServerProtocol protocol, Exception ex)
{
OM.LOG.warn("A problem occured while notifying client " + protocol, ex);
}
protected CDOAdminHandler getAdminHandler(String type)
{
return (CDOAdminHandler)container.getElement(CDOAdminHandler.Factory.PRODUCT_GROUP, type, null);
}
private CDOAdminServerProtocol[] getProtocols()
{
synchronized (protocols)
{
return protocols.toArray(new CDOAdminServerProtocol[protocols.size()]);
}
}
/**
* @author Eike Stepper
*/
public static class Factory extends org.eclipse.net4j.util.factory.Factory
{
public static final String PRODUCT_GROUP = "org.eclipse.emf.cdo.server.admin.adminServers";
public static final String TYPE = "default";
private final IManagedContainer container;
private final long timeout;
public Factory(IManagedContainer container)
{
this(container, ISignalProtocol.DEFAULT_TIMEOUT);
}
public Factory(IManagedContainer container, long timeout)
{
super(PRODUCT_GROUP, TYPE);
this.container = container;
this.timeout = timeout;
}
public final IManagedContainer getContainer()
{
return container;
}
public final long getTimeout()
{
return timeout;
}
public CDOAdminServer create(String description)
{
return new CDOAdminServer(container, timeout);
}
public static CDOAdminServer get(IManagedContainer container, String description)
{
return (CDOAdminServer)container.getElement(PRODUCT_GROUP, TYPE, description);
}
/**
* @author Eike Stepper
*/
public static final class Plugin extends Factory
{
public Plugin()
{
super(IPluginContainer.INSTANCE);
}
}
}
}
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