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// Copyright 2020 Google LLC
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#import <nanopb/pb.h>
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#import <nanopb/pb_decode.h>
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#import <nanopb/pb_encode.h>
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#import "FirebasePerformance/Sources/FPRConsoleLogger.h"
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#import "FirebasePerformance/Sources/Loggers/FPRGDTEvent.h"
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#import "FirebasePerformance/Sources/Protogen/nanopb/perf_metric.nanopb.h"
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@interface FPRGDTEvent ()
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/** Perf metric that is going to be converted. */
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@property(nonatomic) firebase_perf_v1_PerfMetric metric;
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/**
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* Creates an instance of FPRGDTEvent.
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*
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* @param perfMetric Performance Event proto object that needs to be converted to FPRGDTEvent.
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* @return Instance of FPRGDTEvent.
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*/
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- (instancetype)initForPerfMetric:(firebase_perf_v1_PerfMetric)perfMetric;
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@end
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@implementation FPRGDTEvent
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+ (instancetype)gdtEventForPerfMetric:(firebase_perf_v1_PerfMetric)perfMetric {
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FPRGDTEvent *event = [[FPRGDTEvent alloc] initForPerfMetric:perfMetric];
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return event;
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}
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- (instancetype)initForPerfMetric:(firebase_perf_v1_PerfMetric)perfMetric {
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if (self = [super init]) {
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_metric = perfMetric;
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}
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return self;
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}
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#pragma mark - GDTCOREventDataObject protocol methods
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- (NSData *)transportBytes {
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pb_ostream_t sizestream = PB_OSTREAM_SIZING;
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// Encode 1 time to determine the size.
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if (!pb_encode(&sizestream, firebase_perf_v1_PerfMetric_fields, &_metric)) {
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FPRLogError(kFPRTransportBytesError, @"Error in nanopb encoding for size: %s",
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PB_GET_ERROR(&sizestream));
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}
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// Encode a 2nd time to actually get the bytes from it.
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size_t bufferSize = sizestream.bytes_written;
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CFMutableDataRef dataRef = CFDataCreateMutable(CFAllocatorGetDefault(), bufferSize);
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CFDataSetLength(dataRef, bufferSize);
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pb_ostream_t ostream = pb_ostream_from_buffer((void *)CFDataGetBytePtr(dataRef), bufferSize);
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if (!pb_encode(&ostream, firebase_perf_v1_PerfMetric_fields, &_metric)) {
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FPRLogError(kFPRTransportBytesError, @"Error in nanopb encoding for bytes: %s",
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PB_GET_ERROR(&ostream));
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}
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CFDataSetLength(dataRef, ostream.bytes_written);
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return CFBridgingRelease(dataRef);
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}
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- (void)dealloc {
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pb_release(firebase_perf_v1_PerfMetric_fields, &_metric);
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}
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@end
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