CBL-5396: Use os_log instead of NSLog for Console Log

CouchbaseLite.xcodeproj/project.pbxproj

@@ -1479,10 +1479,6 @@
 		9388CC3321C18672005CA66D /* CBLLog+Internal.h in Headers */ = {isa = PBXBuildFile; fileRef = 93C50F0F21C068F300C7E980 /* CBLLog+Internal.h */; };
 		9388CC3421C18673005CA66D /* CBLLog+Internal.h in Headers */ = {isa = PBXBuildFile; fileRef = 93C50F0F21C068F300C7E980 /* CBLLog+Internal.h */; };
 		9388CC3521C18674005CA66D /* CBLLog+Internal.h in Headers */ = {isa = PBXBuildFile; fileRef = 93C50F0F21C068F300C7E980 /* CBLLog+Internal.h */; };
-		9388CC3621C186DD005CA66D /* CBLLog+Admin.h in Headers */ = {isa = PBXBuildFile; fileRef = 274D6C272011529D00DAB7DD /* CBLLog+Admin.h */; };
-		9388CC3721C186DE005CA66D /* CBLLog+Admin.h in Headers */ = {isa = PBXBuildFile; fileRef = 274D6C272011529D00DAB7DD /* CBLLog+Admin.h */; };
-		9388CC3821C186DF005CA66D /* CBLLog+Admin.h in Headers */ = {isa = PBXBuildFile; fileRef = 274D6C272011529D00DAB7DD /* CBLLog+Admin.h */; };
-		9388CC3921C186DF005CA66D /* CBLLog+Admin.h in Headers */ = {isa = PBXBuildFile; fileRef = 274D6C272011529D00DAB7DD /* CBLLog+Admin.h */; };
 		9388CC3A21C18784005CA66D /* CBLLog.mm in Sources */ = {isa = PBXBuildFile; fileRef = 9388CBE721BF7195005CA66D /* CBLLog.mm */; };
 		9388CC3B21C18786005CA66D /* CBLLog.mm in Sources */ = {isa = PBXBuildFile; fileRef = 9388CBE721BF7195005CA66D /* CBLLog.mm */; };
 		9388CC3C21C18787005CA66D /* CBLLog.mm in Sources */ = {isa = PBXBuildFile; fileRef = 9388CBE721BF7195005CA66D /* CBLLog.mm */; };
@@ -2224,7 +2220,6 @@
 		270AB2BB2073EF57009A4596 /* CBLChangeNotifier.m */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.objc; path = CBLChangeNotifier.m; sourceTree = "<group>"; };
 		2728509C1E99CA4D009CA22F /* CBLReplicator+Internal.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; name = "CBLReplicator+Internal.h"; path = "../CBLReplicator+Internal.h"; sourceTree = "<group>"; };
 		27476651201912B5007B39D1 /* CBLErrors.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = CBLErrors.h; sourceTree = "<group>"; };
-		274D6C272011529D00DAB7DD /* CBLLog+Admin.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = "CBLLog+Admin.h"; sourceTree = "<group>"; };
 		275229C51E776BC100E630FA /* CBLReplicator.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = CBLReplicator.h; sourceTree = "<group>"; };
 		275229C61E776BC100E630FA /* CBLReplicator.mm */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.objcpp; path = CBLReplicator.mm; sourceTree = "<group>"; };
 		2753AFF11EC39CA200C12E98 /* CBLHTTPLogic.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = CBLHTTPLogic.h; sourceTree = "<group>"; };
@@ -3932,7 +3927,6 @@
 		9388CC1021BF9E54005CA66D /* Log */ = {
 			isa = PBXGroup;
 			children = (
-				274D6C272011529D00DAB7DD /* CBLLog+Admin.h */,
 				93C50F0F21C068F300C7E980 /* CBLLog+Internal.h */,
 				934F4C9C1E241FB500F90659 /* CBLLog+Logging.h */,
 				9388CC5721C25FDE005CA66D /* CBLLog+Swift.h */,
@@ -4419,7 +4413,6 @@
 				1AAFB66C284A260A00878453 /* CBLCollectionChange.h in Headers */,
 				9388CC0621BF750E005CA66D /* CBLFileLogger.h in Headers */,
 				9381960B1EC112010032CC51 /* CBLMutableDictionary.h in Headers */,
-				9388CC3721C186DE005CA66D /* CBLLog+Admin.h in Headers */,
 				9381960D1EC112130032CC51 /* CBLArray.h in Headers */,
 				93CED8D420488DC400E6F0A4 /* CBLBlob+Swift.h in Headers */,
 				9381961F1EC11A8C0032CC51 /* CBLDictionary+Swift.h in Headers */,
@@ -4700,7 +4693,6 @@
 				40FC1C0B2B928ADC00394276 /* CBLListenerPasswordAuthenticator+Internal.h in Headers */,
 				9343EFF7207D611600F19A89 /* CBLQueryCollation.h in Headers */,
 				9343EFF8207D611600F19A89 /* CBLArrayFragment.h in Headers */,
-				9388CC3821C186DF005CA66D /* CBLLog+Admin.h in Headers */,
 				9343EFF9207D611600F19A89 /* CBLIndex.h in Headers */,
 				935A58D021AFAD31009A29CB /* CBLDocumentReplication+Internal.h in Headers */,
 				9343EFFB207D611600F19A89 /* CBLData.h in Headers */,
@@ -4909,7 +4901,6 @@
 				9343F116207D61AB00F19A89 /* CBLReplicator+Internal.h in Headers */,
 				9343F117207D61AB00F19A89 /* CBLC4Document.h in Headers */,
 				9343F118207D61AB00F19A89 /* CBLJSON.h in Headers */,
-				9388CC3921C186DF005CA66D /* CBLLog+Admin.h in Headers */,
 				9343F119207D61AB00F19A89 /* CBLCoreBridge.h in Headers */,
 				935A58D121AFAD31009A29CB /* CBLDocumentReplication+Internal.h in Headers */,
 				1A3470EC266F69280042C6BA /* CBLIndexConfiguration+Internal.h in Headers */,
@@ -5020,7 +5011,6 @@
 				9388CC0521BF750E005CA66D /* CBLFileLogger.h in Headers */,
 				9398D9FF1E03531A00464432 /* CouchbaseLite.h in Headers */,
 				1A3470C1266F3E7C0042C6BA /* CBLIndexConfiguration.h in Headers */,
-				9388CC3621C186DD005CA66D /* CBLLog+Admin.h in Headers */,
 				6932D48D2954640000D28C18 /* CBLQueryFullTextIndexExpression.h in Headers */,
 				937F01E11EFB269300060D64 /* CBLAuthenticator.h in Headers */,
 				934F4CB51E241FB500F90659 /* CBLPrefix.h in Headers */,

Objective-C/CBLConsoleLogger.m

@@ -19,17 +19,20 @@
 
 #import "CBLConsoleLogger.h"
 #import "CBLLog+Internal.h"
-#import "CBLLog+Admin.h"
 
 @implementation CBLConsoleLogger
 
 @synthesize level=_level, domains=_domains;
 
+static NSMutableDictionary<NSNumber *, os_log_t>* osLogDictionary;
+static os_log_t logger;
+
 - (instancetype) initWithLogLevel: (CBLLogLevel)level {
     self = [super init];
     if (self) {
         _level = level;
         _domains = kCBLLogDomainAll;
+        [self initializeOSLogDomains];
     }
     return self;
 }
@@ -43,9 +46,51 @@ - (void) logWithLevel: (CBLLogLevel)level domain: (CBLLogDomain)domain message:
     if (self.level > level || (self.domains & domain) == 0)
         return;
 
-    NSString* levelName = CBLLog_GetLevelName(level);
-    NSString* domainName = CBLLog_GetDomainName(domain);
-    NSLog(@"CouchbaseLite %@ %@: %@", domainName, levelName, message);
+    os_log_t osLogDomain = osLogDictionary[@(domain)];
+    os_log_type_t osLogType = osLogTypeForLevel(level);
+    os_log_with_type(osLogDomain, osLogType, "%@", message);
+}
+
+static os_log_type_t osLogTypeForLevel(CBLLogLevel level) {
+    switch (level) {
+        case kCBLLogLevelDebug:
+            return OS_LOG_TYPE_DEBUG;
+        case kCBLLogLevelVerbose:
+            return OS_LOG_TYPE_INFO; // Map verbose to info
+        case kCBLLogLevelInfo:
+            return OS_LOG_TYPE_INFO;
+        case kCBLLogLevelWarning:
+            return OS_LOG_TYPE_ERROR; // Map warning to error
+        case kCBLLogLevelError:
+            return OS_LOG_TYPE_ERROR;
+        default:
+            return OS_LOG_TYPE_DEFAULT; // Default log type
+    }
+}
+
+- (void) initializeOSLogDomains {
+    osLogDictionary = [NSMutableDictionary dictionary];
+
+    osLogDictionary[@(kCBLLogDomainDatabase)] = os_log_create("com.couchbase.lite.ios", "Database");
+    osLogDictionary[@(kCBLLogDomainQuery)] = os_log_create("com.couchbase.lite.ios", "Query");
+    osLogDictionary[@(kCBLLogDomainReplicator)] = os_log_create("com.couchbase.lite.ios", "Replicator");
+    osLogDictionary[@(kCBLLogDomainNetwork)] = os_log_create("com.couchbase.lite.ios", "Network");
+
+    #ifdef COUCHBASE_ENTERPRISE
+    osLogDictionary[@(kCBLLogDomainListener)] = os_log_create("com.couchbase.lite.ios", "Listener");
+    #endif
+}
+
++ (os_log_t) internalLogger {
+    if(!logger){
+        logger = os_log_create("com.couchbase.lite.ios", "Log");
+    }
+    return logger;
+}
+
++ (void) logWithInternal: (NSString*)message {
+    logger = [self internalLogger];
+    os_log(logger, "%@", message);
 }
 
 @end

Objective-C/CBLDatabase.mm

@@ -30,7 +30,6 @@
 #import "CBLIndexConfiguration+Internal.h"
 #import "CBLIndexSpec.h"
 #import "CBLIndex+Internal.h"
-#import "CBLLog+Admin.h"
 #import "CBLLog+Internal.h"
 #import "CBLMisc.h"
 #import "CBLQuery+Internal.h"
@@ -115,7 +114,7 @@ to be done in CBLInit()which is called only once when the first CBLDatabase is c
  */
 + (void) initialize {
     if (self == [CBLDatabase class]) {
-        NSLog(@"%@", [CBLVersion userAgent]);
+        [CBLConsoleLogger logWithInternal:[CBLVersion userAgent]];
         // Initialize logging
         CBLAssertNotNil(CBLLog.sharedInstance);
     }

Objective-C/CBLLog.mm

@@ -18,7 +18,6 @@
 //
 
 #import "CBLLog.h"
-#import "CBLLog+Admin.h"
 #import "CBLLog+Internal.h"
 #import "CBLLog+Logging.h"
 #import "CBLLog+Swift.h"
@@ -44,6 +43,7 @@ - (instancetype) initWithLevel: (CBLLogLevel)level logger: (CBLCustomLoggerBlock
 
 @implementation CBLLog {
     CBLLogLevel _callbackLogLevel;
+    os_log_t oslogger;
 }
 
 @synthesize console=_console, file=_file, custom=_custom;
@@ -159,7 +159,8 @@ - (instancetype) initWithDefault {
             callbackLogLevel = string2level(userLogLevel);
         }
         if (callbackLogLevel != kC4LogWarning) {
-            NSLog(@"CouchbaseLite minimum log level is %s", kLevelNames[callbackLogLevel]);
+            NSString* message = [NSString stringWithFormat: @"CouchbaseLite minimum log level is %s", kLevelNames[callbackLogLevel]];
+            [CBLConsoleLogger logWithInternal: message];
         }
 #endif
 
@@ -190,7 +191,7 @@ - (instancetype) initWithDefault {
                 C4LogDomain domain = c4log_getDomain(domainName, true);
                 C4LogLevel level = string2level(defaults[key]);
                 c4log_setLevel(domain, level);
-                NSLog(@"CouchbaseLite logging to %s domain at level %s", domainName, kLevelNames[level]);
+                os_log(oslogger, "CouchbaseLite logging to %s domain at level %s", domainName, kLevelNames[level]);
             }
         }
 #endif
@@ -283,34 +284,6 @@ void cblLog(C4LogDomain domain, C4LogLevel level, NSString *msg, ...) {
     sendToCallbackLogger(domain, level, nsmsg);
 }
 
-NSString* CBLLog_GetLevelName(CBLLogLevel level) {
-    return [NSString stringWithUTF8String: kLevelNames[level]];
-}
-
-NSString* CBLLog_GetDomainName(CBLLogDomain domain) {
-    switch (domain) {
-        case kCBLLogDomainDatabase:
-            return @"Database";
-            break;
-        case kCBLLogDomainQuery:
-            return @"Query";
-            break;
-        case kCBLLogDomainReplicator:
-            return @"Replicator";
-            break;
-        case kCBLLogDomainNetwork:
-            return @"Network";
-            break;
-#ifdef COUCHBASE_ENTERPRISE
-        case kCBLLogDomainListener:
-            return @"Listener";
-            break;
-#endif
-        default:
-            return @"Database";
-    }
-}
-
 @implementation CBLCustomLogger {
     CBLLogLevel _level;
     CBLCustomLoggerBlock _logger;

Objective-C/Internal/CBLLog+Internal.h

@@ -17,6 +17,7 @@
 //  limitations under the License.
 //
 
+#import <os/log.h>
 #import "CBLLog.h"
 #import "CBLConsoleLogger.h"
 #import "CBLFileLogger.h"
@@ -35,6 +36,10 @@ NS_ASSUME_NONNULL_BEGIN
 
 - (instancetype) initWithLogLevel: (CBLLogLevel)level;
 
++ (os_log_t) internalLogger;
+
++ (void) logWithInternal: (nonnull NSString*)message;
+
 @end
 
 @interface CBLFileLogger ()

Objective-C/Tests/Util/CBLWordEmbeddingModel.m

@@ -39,10 +39,7 @@ - (CBLArray*) vectorForWord: (NSString*)word collection: (NSString*)collection {
 - (CBLDictionary*) predict: (CBLDictionary*)input {
     NSString* inputWord = [input stringForKey: @"word"];
 
-    if (!inputWord) {
-        NSLog(@"No word input !!!");
-        return nil;
-    }
+    assert(inputWord);
 
     CBLArray* result = [self vectorForWord: inputWord collection: @"words"];
     if (!result) {