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* Copyright 1999, 2000 (C) Intalio, Inc. All Rights Reserved.
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* $Id$
*/
package org.exolab.castor.xml.util;
import org.castor.xml.XMLNaming;
import org.exolab.castor.xml.AbstractXMLNaming;
/**
* The default implementation of org.exolab.castor.xml.Naming
* @author <a href="mailto:kvisco@intalio.com">Keith Visco</a>
* @version $Revision$ $Date: 2003-03-03 00:05:44 -0700 (Mon, 03 Mar 2003) $
*/
public final class DefaultNaming extends AbstractXMLNaming implements XMLNaming {
/**
* The lower case style with hyphens to separate words. <I>Default</I>
* <BR />
* <B>examples:</B><BR />
* "Blob" becomes "blob" and "DataSource" becomes "data-source".
*/
public static final short LOWER_CASE_STYLE = 0;
/**
* The mixed case style with uppercase characters to separate words. <BR>
* <B>examples:</B><BR>
* "Blob" becomes "blob" and "DataSource" becomes "dataSource".
*/
public static final short MIXED_CASE_STYLE = 1;
private static short _style = LOWER_CASE_STYLE;
/**
* Creates a new DefaultNaming
*/
public DefaultNaming() {
super();
} //-- DefaultNaming
/**
* Sets the style for this DefaultNaming.
* Valid options are as follows
* <pre>
* DefaultNaming.LOWER_CASE_STYLE
* DefaultNaming.MIXED_CASE_STYLE
* </pre>
* @param style the style to use
*/
public void setStyle(final short style) {
switch (style) {
case MIXED_CASE_STYLE:
case LOWER_CASE_STYLE:
_style = style;
break;
default:
throw new IllegalArgumentException("Invalid option for DefaultNaming#setStyle.");
}
} //-- setStyle
/**
* Creates the XML Name for the given class. It would be nearly impossible
* for this method to please every one, so I picked common "de-facto" XML
* naming conventions. This can be overridden by either extending
* org.exolab.castor.xml.Naming and implementing the proper methods, or by
* ClassDescriptors for your classes.
*
* @param c the Class to create the XML Name for
* @return the xml name representation of the given String <BR>
* <B>examples:</B><BR>
* "Blob" becomes "blob" and "DataSource" becomes "data-source".
* @see org.exolab.castor.xml.AbstractXMLNaming
* @deprecated extracting name parts from a Class is responsibility of JavaNaming
*/
public String createXMLName(final Class c) {
UnsupportedOperationException e =
new UnsupportedOperationException("Method has moved to JavaNaming!");
throw e;
//-- create default XML name
// String name = c.getName();
// int idx = name.lastIndexOf('.');
// if (idx >= 0) {
// name = name.substring(idx+1);
// }
// return toXMLName(name);
} //-- createXMLName
/**
* Converts the given name to an XML name. It would be nearly impossible for
* this method to please every one, so I picked common "de-facto" XML naming
* conventions. This can be overridden by either extending
* org.exolab.castor.xml.Naming and implementing the proper methods, or by
* ClassDescriptors for your classes.
*
* @param name the String to convert to an XML name
* @return the xml name representation of the given String <BR>
* <B>examples:</B><BR>
* "Blob" becomes "blob" and "DataSource" becomes "data-source".
* @see org.exolab.castor.xml.AbstractXMLNaming
*/
public String toXMLName(final String name) {
if (name == null) {
return null;
}
if (name.length() == 0) {
return name;
}
if (name.length() == 1) {
return name.toLowerCase();
}
//-- Follow the Java beans Introspector::decapitalize
//-- convention by leaving alone String that start with
//-- 2 uppercase characters.
if (Character.isUpperCase(name.charAt(0)) && Character.isUpperCase(name.charAt(1))) {
return name;
}
//-- process each character
StringBuffer cbuff = new StringBuffer(name);
cbuff.setCharAt(0, Character.toLowerCase(cbuff.charAt(0)));
boolean ucPrev = false;
for (int i = 1; i < cbuff.length(); i++) {
char ch = cbuff.charAt(i);
if (Character.isUpperCase(ch)) {
if (ucPrev) {
continue;
}
ucPrev = true;
if (_style == LOWER_CASE_STYLE) {
cbuff.insert(i,'-');
++i;
cbuff.setCharAt(i, Character.toLowerCase(ch));
} else {
++i;
}
} else if (ch == '.') {
//-- do not add '-' if preceeded by '.'
ucPrev = true;
} else {
ucPrev = false;
}
}
return cbuff.toString();
} //-- toXMLName
} //-- Naming