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//
// MonitorClass.m
// MySQLMonitor
//
// Created by Alfredo Kojima on 05/8/1.
// Copyright 2005 MySQL AB. All rights reserved.
//
#import "MonitorClass.h"
@implementation MonitorClass
-(id)initWithWebView:(WebView*)w
{
self = [super init];
return self;
}
-(void)windowScriptObjectAvailable:(WebScriptObject*)wso
{
[wso setValue:self forKey:@"MySQLMonitor"];
}
+(NSString*)webScriptNameForSelector:(SEL)aSel {
NSString *retval = nil;
if (aSel == @selector(getStatus:)) {
retval = @"getStatus";
} else if (aSel == @selector(queryStatus)) {
retval = @"queryStatus";
} else if (aSel == @selector(connectHost:username:password:)) {
retval = @"connect";
} else if (aSel == @selector(testConnection:username:password:)) {
retval = @"testConnection";
} else {
NSLog(@"\tunknown selector");
}
return retval;
}
+(BOOL)isSelectorExcludedFromWebScript:(SEL)aSel
{
if (aSel == @selector(getStatus:)
|| aSel == @selector(connectHost:username:password:)
|| aSel == @selector(testConnection:username:password:)
|| aSel == @selector(queryStatus)) {
return NO;
}
return YES;
}
+(BOOL)isKeyExcludedFromWebScript:(const char*)k
{
return YES;
}
- (NSString*)queryStatus
{
NSMutableDictionary *dict= [[[NSMutableDictionary alloc] init] autorelease];
const char *query;
MYSQL_RES *res;
MYSQL_ROW row;
if (_oldMySQL)
query= "SHOW STATUS";
else
query= "SHOW GLOBAL STATUS";
if (mysql_query(_mysql, query) != 0)
return nil;
if ((res= mysql_store_result(_mysql)))
{
while ((row= mysql_fetch_row(res)))
{
if (row && row[0] && row[1])
{
NSNumber *number= [NSNumber numberWithDouble:strtod(row[1], NULL)];
[dict setObject: number
forKey: [NSString stringWithUTF8String:row[0]]];
}
}
mysql_free_result(res);
}
if (_ostats)
[_ostats release];
_ostats= _stats;
_stats= [dict retain];
return @"1";
}
- (double)getDelta:(NSString*)stat
{
double v1, v2;
v1= [[_ostats objectForKey:stat] doubleValue];
v2= [[_stats objectForKey:stat] doubleValue];
return v2-v1;
}
- (NSString*)getStatus:(NSString*)stat
{
NSString *result= nil;
if (!_mysql)
return nil;
if ([stat isEqualTo:@"Qcache_hitrate"])
{
double hits, inserts, notcached;
result= @"0";
if (_ostats)
{
hits= [self getDelta:@"Qcache_hits"];
inserts= [self getDelta:@"Qcache_inserts"];
notcached= [self getDelta:@"Qcache_not_cached"];
if ((hits+inserts+notcached) > 0)
result= [NSString stringWithFormat:@"%.0f", (hits/(hits+inserts+notcached))*100];
}
}
else
{
result= [NSString stringWithFormat:@"%f", [[_stats objectForKey:stat] doubleValue]];
}
return result;
}
- (NSString*)testConnection:(NSString*)host
username:(NSString*)username
password:(NSString*)password
{
MYSQL mysql;
char *hostname = malloc([host length]+1);
int port = 3306;
sscanf([host UTF8String], "%[^:]s:%i", hostname, &port);
mysql_init(&mysql);
if (mysql_real_connect(&mysql,
hostname,
[username UTF8String],
[password UTF8String],
NULL,
port,
NULL,
0) != 0)
{
free(hostname);
mysql_close(&mysql);
return @"";
}
else
{
NSString *msg;
msg= [NSString stringWithUTF8String:mysql_error(&mysql)];
free(hostname);
mysql_close(&mysql);
return msg;
}
}
- (NSNumber*)connectHost:(NSString*)host
username:(NSString*)username
password:(NSString*)password
{
char *hostname = malloc([host length]+1);
int port = 3306;
sscanf([host UTF8String], "%[^:]s:%i", hostname, &port);
if (_mysql)
{
mysql_close(_mysql);
[_stats release];
[_ostats release];
_stats= nil;
_ostats= nil;
}
_mysql= mysql_init(NULL);
if (mysql_real_connect(_mysql,
hostname,
[username UTF8String],
[password UTF8String],
NULL,
port,
NULL,
0) != 0)
{
free(hostname);
if (mysql_get_server_version(_mysql) < 50000)
_oldMySQL= YES;
else
_oldMySQL= NO;
return [NSNumber numberWithInt:1];
}
else
{
free(hostname);
return [NSNumber numberWithInt:0];
}
}
@end
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