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#include "AggregateValue.h"
#include "../General/Macros.h"
#include <math.h>
@implementation AggregateValue
+ (PajeEntity *)entityWithEntities:(NSArray *)entities
{
return [[[self alloc] initWithEntities:entities] autorelease];
}
- (id)initWithEntities:(NSArray *)entities
{
NSEnumerator *entityEnum;
PajeEntity *entity;
PajeEntity *lastEntity;
NSDate *t1;
NSDate *t2;
double sum = 0;
double min = HUGE_VAL;
double max = -HUGE_VAL;
int ct = 0;
entityEnum = [entities objectEnumerator];
entity = [entityEnum nextObject];
NSParameterAssert(entity != nil);
t1 = [entity startTime];
do {
double v;
v = [entity minValue];
if (v < min) min = v;
v = [entity maxValue];
if (v > max) max = v;
v = [entity doubleValue];
sum += v * [entity duration];
lastEntity = entity;
ct += [entity condensedEntitiesCount];
} while ((entity = [entityEnum nextObject]) != nil);
t2 = [lastEntity endTime];
self = [super initWithType:[lastEntity entityType]
name:@""
container:[lastEntity container]];
if (self != nil) {
Assign(startTime, t1);
Assign(endTime, t2);
value = sum / [t2 timeIntervalSinceDate:t1];
minValue = min;
maxValue = max;
condensedEntitiesCount = ct;
}
return self;
}
- (void)dealloc
{
Assign(startTime, nil);
Assign(endTime, nil);
[super dealloc];
}
- (NSDate *)startTime
{
return startTime;
}
- (NSDate *)endTime
{
if (endTime != nil) {
return endTime;
}
return [container endTime];
}
- (NSDate *)time
{
return startTime;
}
- (void)setEndTime:(NSDate *)time
{
Assign(endTime, time);
}
- (double)doubleValue
{
return value;
}
- (id)value
{
return [NSNumber numberWithDouble:value];
}
- (NSArray *)fieldNames
{
return [[super fieldNames] arrayByAddingObject: @"Value"];
}
- (id)valueOfFieldNamed:(NSString *)fieldName
{
id val;
if ([fieldName isEqualToString:@"Value"]) {
val = [NSNumber numberWithDouble:value];
} else {
val = [super valueOfFieldNamed:fieldName];
}
return val;
}
- (double)maxValue
{
return maxValue;
}
- (double)minValue
{
return minValue;
}
- (BOOL)isAggregate
{
return YES;
}
- (unsigned)condensedEntitiesCount
{
return condensedEntitiesCount;
}
- (NSColor *)xcolor
{
return [NSColor whiteColor];
}
@end
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