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74 lines
1.8 KiB
74 lines
1.8 KiB
4 months ago
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/*
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* Copyright (C) 2016 The Android Open Source Project
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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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*/
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#import "WALTLogger.h"
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@implementation WALTLogger {
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NSMutableString *_buffer;
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}
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+ (instancetype)sessionLogger {
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static WALTLogger *sessionLogger = nil;
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static dispatch_once_t token;
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dispatch_once(&token, ^{
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sessionLogger = [[self alloc] init];
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});
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return sessionLogger;
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}
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- (instancetype)init {
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if ((self = [super init])) {
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_buffer = [[NSMutableString alloc] init];
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}
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return self;
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}
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- (void)appendString:(NSString *)string {
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@synchronized (_buffer) {
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[_buffer appendString:string];
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}
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}
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- (void)appendFormat:(NSString *)format, ... {
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va_list args;
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va_start(args, format);
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NSString *formatted = [[NSString alloc] initWithFormat:format arguments:args];
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[_buffer appendString:formatted];
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va_end(args);
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}
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- (void)clear {
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@synchronized (_buffer) {
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[_buffer setString:[NSString string]];
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}
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}
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- (BOOL)writeToURL:(NSURL *)url error:(NSError **)error {
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@synchronized (_buffer) {
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return [_buffer writeToURL:url
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atomically:YES
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encoding:NSUTF8StringEncoding
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error:error];
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}
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}
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- (NSString *)stringValue {
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@synchronized (_buffer) {
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return [NSString stringWithString:_buffer];
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}
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}
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@end
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