package org.hibernate.type.descriptor.java;
import java.util.Comparator;
import java.util.Locale;
import org.hibernate.type.descriptor.WrapperOptions;
public class LocaleTypeDescriptor extends AbstractTypeDescriptor<Locale> {
public static final LocaleTypeDescriptor INSTANCE = new LocaleTypeDescriptor();
public static class LocaleComparator implements Comparator<Locale> {
public static final LocaleComparator INSTANCE = new LocaleComparator();
public int compare(Locale o1, Locale o2) {
return o1.toString().compareTo( o2.toString() );
}
}
public LocaleTypeDescriptor() {
super( Locale.class );
}
@Override
public Comparator<Locale> getComparator() {
return LocaleComparator.INSTANCE;
}
public String toString(Locale value) {
return value.toString();
}
public Locale fromString(String string) {
if ( string == null || string.isEmpty() ) {
return null;
}
boolean separatorFound = false;
int position = 0;
char[] chars = string.toCharArray();
for ( int i = 0; i < chars.length; i++ ) {
if ( chars[i] == '_' ) {
if ( !separatorFound ) {
string = new String( chars, position, i - position );
position = i + 1;
}
else {
if ( chars.length > i + 1 ) {
return new Locale( string, new String( chars, position, i - position ), new String( chars,
i + 1, chars.length - i - 1 ) );
}
else {
return new Locale( string, new String( chars, position, i - position ), "" );
}
}
separatorFound = true;
}
}
if ( !separatorFound ) {
return new Locale( string );
}
else {
return new Locale( string, new String( chars, position, chars.length - position ) );
}
}
@SuppressWarnings({ "unchecked" })
public <X> X unwrap(Locale value, Class<X> type, WrapperOptions options) {
if ( value == null ) {
return null;
}
if ( String.class.isAssignableFrom( type ) ) {
return (X) value.toString();
}
throw unknownUnwrap( type );
}
public <X> Locale wrap(X value, WrapperOptions options) {
if ( value == null ) {
return null;
}
if ( String.class.isInstance( value ) ) {
return fromString( (String) value );
}
throw unknownWrap( value.getClass() );
}
}