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/***************************************************************************
* Copyright (c) 2004 - 2009 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.internal.cdo.net4j;
import org.eclipse.emf.internal.cdo.messages.Messages;
import org.eclipse.net4j.connector.IConnector;
import org.eclipse.net4j.signal.failover.NOOPFailOverStrategy;
import org.eclipse.net4j.util.StringUtil;
import org.eclipse.net4j.util.container.IElementProcessor;
import org.eclipse.net4j.util.container.IManagedContainer;
import org.eclipse.spi.net4j.ConnectorFactory;
import java.text.MessageFormat;
/**
* @author Eike Stepper
*/
public class FailOverStrategyInjector implements IElementProcessor
{
private static final String INVALID_URI_MESSAGE = Messages.getString("InvalidURIException.0"); //$NON-NLS-1$
private static final String SCHEME_SEPARATOR = "://"; //$NON-NLS-1$
public FailOverStrategyInjector()
{
}
public Object process(IManagedContainer container, String productGroup, String factoryType, String description,
Object element)
{
if (element instanceof CDONet4jSessionImpl)
{
CDONet4jSessionImpl session = (CDONet4jSessionImpl)element;
NOOPFailOverStrategy failOverStrategy = getFailOverStrategy(container, description);
session.setFailOverStrategy(failOverStrategy);
}
return element;
}
protected NOOPFailOverStrategy getFailOverStrategy(IManagedContainer container, String description)
{
IConnector connector = getConnector(container, description);
return new NOOPFailOverStrategy(connector);
}
protected IConnector getConnector(IManagedContainer container, String description)
{
int pos = description.indexOf(SCHEME_SEPARATOR);
if (pos == -1)
{
throw new IllegalArgumentException(MessageFormat.format(INVALID_URI_MESSAGE, description, Messages
.getString("FailOverStrategyInjector.0"))); //$NON-NLS-1$
}
String factoryType = description.substring(0, pos);
if (StringUtil.isEmpty(factoryType))
{
throw new IllegalArgumentException(MessageFormat.format(INVALID_URI_MESSAGE, description, Messages
.getString("FailOverStrategyInjector.1"))); //$NON-NLS-1$
}
String connectorDescription = description.substring(pos + SCHEME_SEPARATOR.length());
if (StringUtil.isEmpty(connectorDescription))
{
throw new IllegalArgumentException(MessageFormat.format(INVALID_URI_MESSAGE, description, Messages
.getString("FailOverStrategyInjector.2"))); //$NON-NLS-1$
}
pos = connectorDescription.indexOf('?');
if (pos != -1)
{
connectorDescription = connectorDescription.substring(0, pos);
}
return (IConnector)container.getElement(ConnectorFactory.PRODUCT_GROUP, factoryType, connectorDescription);
}
}
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