Synnefo » Pithos MacOS Client

//

//  MetadataKeyTransformer.m

//  pithos-macos

//

// Copyright 2011 GRNET S.A. All rights reserved.

//

// Redistribution and use in source and binary forms, with or

// without modification, are permitted provided that the following

// conditions are met:

// 

//   1. Redistributions of source code must retain the above

//      copyright notice, this list of conditions and the following

//      disclaimer.

// 

//   2. Redistributions in binary form must reproduce the above

//      copyright notice, this list of conditions and the following

//      disclaimer in the documentation and/or other materials

//      provided with the distribution.

// 

// THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS

// OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED

// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

// PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR

// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,

// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT

// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF

// USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED

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#import "MetadataKeyTransformer.h"

@implementation MetadataKeyTransformer

+ (Class)transformedValueClass {

	return [NSString class];

}

+ (BOOL)allowsReverseTransformation {

	return YES;

}

- (id)transformedValue:(id)value {

    if (value == nil)

		return nil;

    return [[(NSString *)value stringByReplacingOccurrencesOfString:@"-" withString:@"_"] lowercaseString];

}

- (id)reverseTransformedValue:(id)value {

    return value;

}

+ (void)initialize {

    [[self class] setValueTransformer:[self new] forName:@"MetadataKeyTransformer"];

}

@end