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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.transfer;
import org.eclipse.net4j.util.ObjectUtil;
import java.util.Arrays;
import java.util.Collections;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;
/**
* @author Eike Stepper
* @since 4.2
*/
public class CDOTransferType implements Comparable<CDOTransferType>
{
/**
* Must be declared/initialized <b>before</b> any transfer types!
*/
private static final Map<String, CDOTransferType> MAP = new HashMap<String, CDOTransferType>();
public static final CDOTransferType UNKNOWN = new CDOTransferType()
{
@Override
public String toString()
{
return "<Unknown>";
}
};
public static final CDOTransferType FOLDER = new CDOTransferType()
{
@Override
public String toString()
{
return "<Folder>";
}
};
public static final CDOTransferType MODEL = new CDOTransferType()
{
@Override
public String toString()
{
return "<Model>";
}
};
public static final CDOTransferType BINARY = new CDOTransferType()
{
@Override
public String toString()
{
return "<Binary>";
}
};
public static final Text UTF8 = text("UTF-8");
public static final Set<CDOTransferType> STANDARD_TYPES = new HashSet<CDOTransferType>(Arrays.asList(UNKNOWN, FOLDER,
MODEL, BINARY, UTF8));
public static final Map<String, CDOTransferType> REGISTRY = Collections.unmodifiableMap(MAP);
private CDOTransferType()
{
this(true);
}
private CDOTransferType(boolean register)
{
if (register)
{
MAP.put(toString(), this);
}
}
@Override
public int hashCode()
{
return toString().hashCode();
}
@Override
public boolean equals(Object obj)
{
return ObjectUtil.equals(toString(), obj.toString());
}
public int compareTo(CDOTransferType o)
{
return toString().compareTo(o.toString());
}
public static Text text(String encoding)
{
CDOTransferType type = MAP.get(encoding);
if (type instanceof Text)
{
return (Text)type;
}
if (type == null)
{
Text text = new Text(encoding);
MAP.put(encoding, text);
return text;
}
throw new IllegalArgumentException("Illegal encoding: " + encoding);
}
/**
* @author Eike Stepper
*/
public static class Text extends CDOTransferType
{
private String encoding;
private Text(String encoding)
{
super(false);
this.encoding = encoding;
}
public String getEncoding()
{
return encoding;
}
@Override
public String toString()
{
return encoding;
}
}
}
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