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/**
* Copyright (c) 2004 - 2011 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.db.mapping;
import org.eclipse.emf.cdo.server.db.mapping.ITypeMapping;
import org.eclipse.emf.cdo.server.internal.db.messages.Messages;
import org.eclipse.net4j.db.DBType;
import org.eclipse.emf.ecore.EClassifier;
import org.eclipse.emf.ecore.EPackage;
import java.text.MessageFormat;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
/**
* @author Stefan Winkler
*/
public class TypeMappingUtil
{
private static final Pattern FACTORY_DESCRIPTOR_PATTERN = Pattern.compile("(.+);(.+)#(.+)->(.+)");
/**
* Utility class - no instantiation.
*/
private TypeMappingUtil()
{
}
public static ITypeMapping.Descriptor createDescriptor(String id, EClassifier eClassifier, DBType dbType)
{
String factoryType = createFactoryType(id, eClassifier, dbType);
return new TypeMappingDescriptor(id, factoryType, eClassifier, dbType);
}
public static String createFactoryType(String id, EClassifier eClassifier, DBType dbType)
{
StringBuilder builder = new StringBuilder();
// id
builder.append(id);
builder.append(";");
// classifier
builder.append(eClassifier.getEPackage().getNsURI());
builder.append("#");
builder.append(eClassifier.getName());
builder.append("->");
// dbtype
builder.append(dbType.getKeyword());
return builder.toString();
}
public static ITypeMapping.Descriptor descriptorFromFactoryType(String factoryType) throws FactoryTypeParserException
{
Matcher matcher = FACTORY_DESCRIPTOR_PATTERN.matcher(factoryType);
if (!matcher.matches())
{
throw new FactoryTypeParserException(MessageFormat.format(Messages.getString("FactoryTypeParserException.1"),
factoryType));
}
String id = matcher.group(1);
String packageUri = matcher.group(2);
String classifierName = matcher.group(3);
String typeKeyword = matcher.group(4);
EPackage ePackage = EPackage.Registry.INSTANCE.getEPackage(packageUri);
if (ePackage == null)
{
throw new FactoryTypeParserException(MessageFormat.format(Messages.getString("FactoryTypeParserException.2"),
packageUri, factoryType));
}
EClassifier eClassifier = ePackage.getEClassifier(classifierName);
if (eClassifier == null)
{
throw new FactoryTypeParserException(MessageFormat.format(Messages.getString("FactoryTypeParserException.3"),
classifierName, factoryType));
}
DBType dbType = DBType.getTypeByKeyword(typeKeyword);
if (dbType == null)
{
throw new FactoryTypeParserException(MessageFormat.format(Messages.getString("FactoryTypeParserException.4"),
dbType, factoryType));
}
return new TypeMappingDescriptor(id, factoryType, eClassifier, dbType);
}
public static class FactoryTypeParserException extends Exception
{
private static final long serialVersionUID = 1L;
public FactoryTypeParserException(String desc)
{
super(desc);
}
}
}
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