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/*
*
* Copyright 2015, Google Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * 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.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "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 THE COPYRIGHT
* OWNER 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 AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
#import "NSDictionary+GRPC.h"
#include <grpc/support/alloc.h>
@implementation NSDictionary (GRPC)
+ (instancetype)grpc_dictionaryFromMetadata:(grpc_metadata *)entries count:(size_t)count {
NSMutableDictionary *metadata = [NSMutableDictionary dictionaryWithCapacity:count];
for (grpc_metadata *entry = entries; entry < entries + count; entry++) {
// TODO(jcanizales): Verify in a C library test that it's converting header names to lower case automatically.
NSString *name = [NSString stringWithUTF8String:entry->key];
if (!name) {
continue;
}
if (!metadata[name]) {
metadata[name] = [NSMutableArray array];
}
// TODO(jcanizales): Should we use a non-copy constructor?
[metadata[name] addObject:[NSData dataWithBytes:entry->value
length:entry->value_length]];
}
return metadata;
}
- (grpc_metadata *)grpc_metadataArray {
grpc_metadata *metadata = gpr_malloc([self count] * sizeof(grpc_metadata));
int i = 0;
for (id key in self) {
id value = self[key];
grpc_metadata *current = &metadata[i];
current->key = [key UTF8String];
if ([value isKindOfClass:[NSData class]]) {
current->value = [value bytes];
} else if ([value isKindOfClass:[NSString class]]) {
current->value = [value UTF8String];
} else {
[NSException raise:NSInvalidArgumentException
format:@"Metadata values must be NSString or NSData."];
}
i += 1;
}
return metadata;
}
@end
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