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fix(core): Add cache for CDefaultsSize to avoid spamming SQL request

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This commit is contained in:
smizrahi
2023-10-10 17:37:59 +02:00
parent b396a277f0
commit 87e1240ace
1 changed files with 26 additions and 12 deletions
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SoObjects/SOGo/SOGoSQLUserProfile.m
+26 -12
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@@ -27,6 +27,7 @@
#import <GDLAccess/EOAdaptorChannel.h>
#import <GDLAccess/EOAdaptorContext.h>
#import <GDLAccess/EOAttribute.h>
#import <SOGo/SOGoCache.h>
#import "SOGoSystemDefaults.h"
@@ -35,6 +36,7 @@
static NSURL *tableURL = nil;
static NSString *uidColumnName = @"c_uid";
static EOAttribute *textColumn = nil;
static const NSString *kCDefaultsLenKey = @"kCDefaultsLenKey";
@implementation SOGoSQLUserProfile
@@ -248,22 +250,34 @@ static EOAttribute *textColumn = nil;
EOAdaptorContext *context;
NSArray *attrs;
NSDictionary *infos;
SOGoCache *cache;
NSNumberFormatter *formatter;
r = 65535;
cm = [GCSChannelManager defaultChannelManager];
channel = [cm acquireOpenChannelForURL: tableURL];
sql = [NSString stringWithFormat: @"select character_octet_length as CHARACTER_MAXIMUM_LENGTH from information_schema.columns where table_name = '%@' AND column_name = 'c_defaults'", [tableURL gcsTableName]];
ex = [channel evaluateExpressionX: sql];
if (!ex) {
attrs = [channel describeResults: NO];
infos = [channel fetchAttributes: attrs withZone: NULL];
[cm releaseChannel: channel immediately: YES];
if (infos && [infos objectForKey:@"CHARACTER_MAXIMUM_LENGTH"]) {
r = [[infos objectForKey:@"CHARACTER_MAXIMUM_LENGTH"] longLongValue];
}
cache = [SOGoCache sharedCache];
if ([cache valueForKey:kCDefaultsLenKey]) {
formatter = [[NSNumberFormatter alloc] init];
formatter.numberStyle = NSNumberFormatterDecimalStyle;
r = [[formatter numberFromString: [cache valueForKey:kCDefaultsLenKey]] unsignedLongLongValue];
[formatter release];
} else {
cm = [GCSChannelManager defaultChannelManager];
channel = [cm acquireOpenChannelForURL: tableURL];
sql = [NSString stringWithFormat: @"select character_octet_length as CHARACTER_MAXIMUM_LENGTH from information_schema.columns where table_name = '%@' AND column_name = 'c_defaults'", [tableURL gcsTableName]];
ex = [channel evaluateExpressionX: sql];
if (!ex) {
attrs = [channel describeResults: NO];
infos = [channel fetchAttributes: attrs withZone: NULL];
[cm releaseChannel: channel immediately: YES];
if (infos && [infos objectForKey:@"CHARACTER_MAXIMUM_LENGTH"]) {
r = [[infos objectForKey:@"CHARACTER_MAXIMUM_LENGTH"] longLongValue];
[cache setValue: [[NSNumber numberWithUnsignedLongLong: r] stringValue] forKey: kCDefaultsLenKey];
}
}
}
return r;
}