EventFactory.m   [plain text]

/*
* Copyright (c) 2017-2018 Apple Inc. All rights reserved.
*
* @APPLE_LICENSE_HEADER_START@
*
* This file contains Original Code and/or Modifications of Original Code
* as defined in and that are subject to the Apple Public Source License
* Version 2.0 (the 'License'). You may not use this file except in
* compliance with the License. Please obtain a copy of the License at
* http://www.opensource.apple.com/apsl/ and read it before using this
* file.
*
* The Original Code and all software distributed under the License are
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
* Please see the License for the specific language governing rights and
* limitations under the License.
*
* @APPLE_LICENSE_HEADER_END@
*/

/*
* Modification History
*
* November 15, 2017 Allan Nathanson <ajn@apple.com>
* - initial revision
*/

#import <os/log.h>
#import "EventFactory.h"
#import "SCLogParser.h"
#import "InterfaceNamerParser.h"
#import "IPMonitorParser.h"
#import "KernelEventMonitorParser.h"
#import "PreferencesMonitorParser.h"
#import "StateDumpParser.h"
#import "IPConfigurationParser.h"

#pragma mark -
#pragma mark Logging

os_log_t
__log_Spectacles(void)
{
static os_log_t log = NULL;

if (log == NULL) {
log = os_log_create("com.apple.spectacles", "SystemConfiguration");
}

return log;
}

#pragma mark -
#pragma mark SystemConfiguratioin Network Event Factory

@interface EventFactory ()
@property NSDictionary<NSString *, SCLogParser *> *parserMap;
@end

@implementation EventFactory

- (void)startWithLogSourceAttributes:(__unused NSDictionary<NSString *, NSObject *> *)attributes
{
NSMutableDictionary<NSString *, SCLogParser *> *newParserMap = [[NSMutableDictionary alloc] init];
SCLogParser *parser;

parser = [[InterfaceNamerParser alloc] init];
newParserMap[parser.category] = parser;

parser = [[IPConfigurationParser alloc] init];
newParserMap[parser.category] = parser;

parser = [[IPMonitorParser alloc] init];
newParserMap[parser.category] = parser;

parser = [[KernelEventMonitorParser alloc] init];
newParserMap[parser.category] = parser;

parser = [[PreferencesMonitorParser alloc] init];
newParserMap[parser.category] = parser;

parser = [[StateDumpParser alloc] init];
newParserMap[parser.category] = parser;

_parserMap = [[NSDictionary alloc] initWithDictionary:newParserMap];
}

- (void)handleLogEvent:(EFLogEvent *)logEvent completionHandler:(void (^)(NSArray<EFEvent *> * _Nullable))completionHandler
{
NSString *category = nil;
if ([logEvent.eventType isEqualToString:@"stateEvent"]) {
category = @"StateDump";
logEvent.subsystem = @"com.apple.SystemConfiguration";
logEvent.category = category;
} else if ([logEvent.subsystem isEqualToString:@"com.apple.IPConfiguration"]) {
logEvent.category = @"IPConfiguration";
}

if (logEvent.category.length == 0) {
specs_log_debug("Skipped message without a category: %@", logEvent.eventMessage);
completionHandler(nil);
return;
}

SCLogParser *parser = _parserMap[logEvent.category];
if (parser == nil) {
specs_log_debug("Skipped message with an unknown category (%@): %@", logEvent.category, logEvent.eventMessage);
completionHandler(nil);
return;
}

NSArray<EFEvent *> *completeEvents = [parser.eventParser parseLogEventIntoMultipleEvents:logEvent];
completionHandler(completeEvents);
}

- (void)finishWithCompletionHandler:(void (^)(NSArray<EFEvent *> * _Nullable))completionHandler
{
specs_log_notice("Event factory is finishing");
completionHandler(nil);
}

@end