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// Protocol Buffers - Google's data interchange format
// Copyright 2015 Google Inc. All rights reserved.
//
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file or at
// https://developers.google.com/open-source/licenses/bsd
// Importing sources here to force the linker to include our category methods in
// the static library. If these were compiled separately, the category methods
// below would be stripped by the linker.
#import "GPBWellKnownTypes.h"
#import "GPBUtilities.h"
#import "GPBUtilities_PackagePrivate.h"
NSString *const GPBWellKnownTypesErrorDomain = GPBNSStringifySymbol(GPBWellKnownTypesErrorDomain);
static NSString *kTypePrefixGoogleApisCom = @"type.googleapis.com/";
static NSTimeInterval TimeIntervalFromSecondsAndNanos(int64_t seconds, int32_t nanos) {
return seconds + (NSTimeInterval)nanos / 1e9;
}
static int32_t SecondsAndNanosFromTimeInterval(NSTimeInterval time, int64_t *outSeconds,
BOOL nanosMustBePositive) {
NSTimeInterval seconds;
NSTimeInterval nanos = modf(time, &seconds);
if (nanosMustBePositive && (nanos < 0)) {
// Per Timestamp.proto, nanos is non-negative and "Negative second values with
// fractions must still have non-negative nanos values that count forward in
// time. Must be from 0 to 999,999,999 inclusive."
--seconds;
nanos = 1.0 + nanos;
}
nanos *= 1e9;
*outSeconds = (int64_t)seconds;
return (int32_t)nanos;
}
static NSString *BuildTypeURL(NSString *typeURLPrefix, NSString *fullName) {
if (typeURLPrefix.length == 0) {
return fullName;
}
if ([typeURLPrefix hasSuffix:@"/"]) {
return [typeURLPrefix stringByAppendingString:fullName];
}
return [NSString stringWithFormat:@"%@/%@", typeURLPrefix, fullName];
}
static NSString *ParseTypeFromURL(NSString *typeURLString) {
NSRange range = [typeURLString rangeOfString:@"/" options:NSBackwardsSearch];
if ((range.location == NSNotFound) || (NSMaxRange(range) == typeURLString.length)) {
return nil;
}
NSString *result = [typeURLString substringFromIndex:range.location + 1];
return result;
}
#pragma mark - GPBTimestamp
@implementation GPBTimestamp (GBPWellKnownTypes)
- (instancetype)initWithDate:(NSDate *)date {
return [self initWithTimeIntervalSince1970:date.timeIntervalSince1970];
}
- (instancetype)initWithTimeIntervalSince1970:(NSTimeInterval)timeIntervalSince1970 {
if ((self = [super init])) {
int64_t seconds;
int32_t nanos = SecondsAndNanosFromTimeInterval(timeIntervalSince1970, &seconds, YES);
self.seconds = seconds;
self.nanos = nanos;
}
return self;
}
- (NSDate *)date {
return [NSDate dateWithTimeIntervalSince1970:self.timeIntervalSince1970];
}
- (void)setDate:(NSDate *)date {
self.timeIntervalSince1970 = date.timeIntervalSince1970;
}
- (NSTimeInterval)timeIntervalSince1970 {
return TimeIntervalFromSecondsAndNanos(self.seconds, self.nanos);
}
- (void)setTimeIntervalSince1970:(NSTimeInterval)timeIntervalSince1970 {
int64_t seconds;
int32_t nanos = SecondsAndNanosFromTimeInterval(timeIntervalSince1970, &seconds, YES);
self.seconds = seconds;
self.nanos = nanos;
}
@end
#pragma mark - GPBDuration
@implementation GPBDuration (GBPWellKnownTypes)
- (instancetype)initWithTimeInterval:(NSTimeInterval)timeInterval {
if ((self = [super init])) {
int64_t seconds;
int32_t nanos = SecondsAndNanosFromTimeInterval(timeInterval, &seconds, NO);
self.seconds = seconds;
self.nanos = nanos;
}
return self;
}
- (NSTimeInterval)timeInterval {
return TimeIntervalFromSecondsAndNanos(self.seconds, self.nanos);
}
- (void)setTimeInterval:(NSTimeInterval)timeInterval {
int64_t seconds;
int32_t nanos = SecondsAndNanosFromTimeInterval(timeInterval, &seconds, NO);
self.seconds = seconds;
self.nanos = nanos;
}
@end
#pragma mark - GPBAny
@implementation GPBAny (GBPWellKnownTypes)
+ (instancetype)anyWithMessage:(GPBMessage *)message error:(NSError **)errorPtr {
return [self anyWithMessage:message typeURLPrefix:kTypePrefixGoogleApisCom error:errorPtr];
}
+ (instancetype)anyWithMessage:(GPBMessage *)message
typeURLPrefix:(NSString *)typeURLPrefix
error:(NSError **)errorPtr {
return [[[self alloc] initWithMessage:message typeURLPrefix:typeURLPrefix
error:errorPtr] autorelease];
}
- (instancetype)initWithMessage:(GPBMessage *)message error:(NSError **)errorPtr {
return [self initWithMessage:message typeURLPrefix:kTypePrefixGoogleApisCom error:errorPtr];
}
- (instancetype)initWithMessage:(GPBMessage *)message
typeURLPrefix:(NSString *)typeURLPrefix
error:(NSError **)errorPtr {
self = [self init];
if (self) {
if (![self packWithMessage:message typeURLPrefix:typeURLPrefix error:errorPtr]) {
[self release];
self = nil;
}
}
return self;
}
- (BOOL)packWithMessage:(GPBMessage *)message error:(NSError **)errorPtr {
return [self packWithMessage:message typeURLPrefix:kTypePrefixGoogleApisCom error:errorPtr];
}
- (BOOL)packWithMessage:(GPBMessage *)message
typeURLPrefix:(NSString *)typeURLPrefix
error:(NSError **)errorPtr {
NSString *fullName = [message descriptor].fullName;
if (fullName.length == 0) {
if (errorPtr) {
*errorPtr = [NSError errorWithDomain:GPBWellKnownTypesErrorDomain
code:GPBWellKnownTypesErrorCodeFailedToComputeTypeURL
userInfo:nil];
}
return NO;
}
if (errorPtr) {
*errorPtr = nil;
}
self.typeURL = BuildTypeURL(typeURLPrefix, fullName);
self.value = message.data;
return YES;
}
- (GPBMessage *)unpackMessageClass:(Class)messageClass error:(NSError **)errorPtr {
return [self unpackMessageClass:messageClass extensionRegistry:nil error:errorPtr];
}
- (nullable GPBMessage *)unpackMessageClass:(Class)messageClass
extensionRegistry:(nullable id<GPBExtensionRegistry>)extensionRegistry
error:(NSError **)errorPtr {
NSString *fullName = [messageClass descriptor].fullName;
if (fullName.length == 0) {
if (errorPtr) {
*errorPtr = [NSError errorWithDomain:GPBWellKnownTypesErrorDomain
code:GPBWellKnownTypesErrorCodeFailedToComputeTypeURL
userInfo:nil];
}
return nil;
}
NSString *expectedFullName = ParseTypeFromURL(self.typeURL);
if ((expectedFullName == nil) || ![expectedFullName isEqual:fullName]) {
if (errorPtr) {
*errorPtr = [NSError errorWithDomain:GPBWellKnownTypesErrorDomain
code:GPBWellKnownTypesErrorCodeTypeURLMismatch
userInfo:nil];
}
return nil;
}
return [messageClass parseFromData:self.value extensionRegistry:extensionRegistry error:errorPtr];
}
@end
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