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//
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//  UsingSizeTransformer.m
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//  pithos-macos
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//
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// Copyright 2011 GRNET S.A. All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or
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// without modification, are permitted provided that the following
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// conditions are met:
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// 
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//   1. Redistributions of source code must retain the above
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//      copyright notice, this list of conditions and the following
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//      disclaimer.
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// 
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//   2. Redistributions in binary form must reproduce the above
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//      copyright notice, this list of conditions and the following
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//      disclaimer in the documentation and/or other materials
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//      provided with the distribution.
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// 
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// THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
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// OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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// PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
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// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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// USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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// AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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// ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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// POSSIBILITY OF SUCH DAMAGE.
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// 
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// The views and conclusions contained in the software and
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// documentation are those of the authors and should not be
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// interpreted as representing official policies, either expressed
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// or implied, of GRNET S.A.
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#import "UsingSizeTransformer.h"
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#import "ASIPithosAccount.h"
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#import "BytesSizeTransformer.h"
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@implementation UsingSizeTransformer
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+ (Class)transformedValueClass {
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	return [NSString class];
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}
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+ (BOOL)allowsReverseTransformation {
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	return NO;
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}
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- (id)transformedValue:(id)value {
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    if (value == nil)
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		return @"Using -";
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    ASIPithosAccount *account = (ASIPithosAccount *)value;
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    long long policyQuota = (account.policy ? [[account.policy objectForKey:@"quota"] longLongValue] : 0);
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    BytesSizeTransformer *bytesSizeTransformer = [[[BytesSizeTransformer alloc] init] autorelease];
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    if (policyQuota > 0)
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        return [NSString stringWithFormat:@"Using %@ of %@", 
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                [bytesSizeTransformer transformedValue:[NSNumber numberWithUnsignedInteger:account.bytesUsed]], 
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                [bytesSizeTransformer transformedValue:[NSNumber numberWithLongLong:policyQuota]]];
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    else
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        return [NSString stringWithFormat:@"Using %@", 
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                [bytesSizeTransformer transformedValue:[NSNumber numberWithUnsignedInteger:account.bytesUsed]]];        
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}
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+ (void)initialize {
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    [[NSValueTransformer class] setValueTransformer:[self new] forName:@"UsingSizeTransformer"];
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}
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@end