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udt.go
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udt.go
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/*===----------- udt.go - udt for cassandra data types -------------===
*
*
* This file is licensed under the Apache 2 License. See LICENSE for details.
*
* Copyright (c) 2018 Andrew Grosser. All Rights Reserved.
*
* `...
* yNMMh`
* dMMMh`
* dMMMh`
* dMMMh`
* dMMMd`
* dMMMm.
* dMMMm.
* dMMMm. /hdy.
* ohs+` yMMMd. yMMM-
* .mMMm. yMMMm. oMMM/
* :MMMd` sMMMN. oMMMo
* +MMMd` oMMMN. oMMMy
* sMMMd` /MMMN. oMMMh
* sMMMd` /MMMN- oMMMd
* oMMMd` :NMMM- oMMMd
* /MMMd` -NMMM- oMMMm
* :MMMd` .mMMM- oMMMm`
* -NMMm. `mMMM: oMMMm`
* .mMMm. dMMM/ +MMMm`
* `hMMm. hMMM/ /MMMm`
* yMMm. yMMM/ /MMMm`
* oMMm. oMMMo -MMMN.
* +MMm. +MMMo .MMMN-
* +MMm. /MMMo .NMMN-
* ` +MMm. -MMMs .mMMN: `.-.
* /hys:` +MMN- -NMMy `hMMN: .yNNy
* :NMMMy` sMMM/ .NMMy yMMM+-dMMMo
* +NMMMh-hMMMo .mMMy +MMMmNMMMh`
* /dMMMNNMMMs .dMMd -MMMMMNm+`
* .+mMMMMMN: .mMMd `NMNmh/`
* `/yhhy: `dMMd /+:`
* `hMMm`
* `hMMm.
* .mMMm:
* :MMMd-
* -NMMh.
* ./:.
*
*===----------------------------------------------------------------------===
*/
package main
import (
"fmt"
"time"
"github.com/gocql/gocql"
"github.com/google/uuid"
)
type viewport struct {
W int64 `cql:"w"`
H int64 `cql:"h"`
}
type geo_point struct {
Lat float64 `cql:"lat"`
Lon float64 `cql:"lon"`
}
// NOTE: due to current implementation details it is not currently possible to use
// a pointer receiver type for the UDTMarshaler interface to handle UDT's
func (p geo_point) MarshalUDT(name string, info gocql.TypeInfo) ([]byte, error) {
switch name {
case "lat":
return gocql.Marshal(info, p.Lat)
case "lon":
return gocql.Marshal(info, p.Lon)
default:
return nil, fmt.Errorf("unknown column for position: %q", name)
}
}
func (p *geo_point) UnmarshalUDT(name string, info gocql.TypeInfo, data []byte) error {
switch name {
case "lat":
return gocql.Unmarshal(info, data, &p.Lat)
case "lon":
return gocql.Unmarshal(info, data, &p.Lon)
default:
return fmt.Errorf("unknown column for position: %q", name)
}
}
type payment struct {
InvoiceID *uuid.UUID `cql:"invid"`
Invoiced *time.Time `cql:"invoiced"`
Product *string `cql:"product"`
ProductID *uuid.UUID `cql:"pid"`
ProductCategory *string `cql:"pcat"`
Manufacturer *string `cql:"man"`
Model *string `cql:"model"`
Quantity *float64 `cql:"qty"`
Duration *string `cql:"duration"`
Starts *time.Time `cql:"starts"`
Ends *time.Time `cql:"ends"`
Currency *string `cql:"currency"`
Country *string `cql:"country"`
RegionCode *string `cql:"rcode"`
Region *string `cql:"region"`
Price *float64 `cql:"price"`
Discount *float64 `cql:"discount"`
Revenue *float64 `cql:"revenue"`
Margin *float64 `cql:"margin"`
Cost *float64 `cql:"cost"`
Tax *float64 `cql:"tax"`
TaxRate *float64 `cql:"tax_rate"`
Commission *float64 `cql:"commission"`
Referral *float64 `cql:"referral"`
Fees *float64 `cql:"fees"`
Subtotal *float64 `cql:"subtotal"`
Total *float64 `cql:"total"`
Payment *float64 `cql:"payment"`
Paid *time.Time `cql:"paid"`
}
// NOTE: due to current implementation details it is not currently possible to use
// a pointer receiver type for the UDTMarshaler interface to handle UDT's
func (p payment) MarshalUDT(name string, info gocql.TypeInfo) ([]byte, error) {
switch name {
case "invid":
return gocql.Marshal(info, p.InvoiceID)
case "invoiced":
return gocql.Marshal(info, p.Invoiced)
case "product":
return gocql.Marshal(info, p.Product)
case "pid":
return gocql.Marshal(info, p.ProductID)
case "pcat":
return gocql.Marshal(info, p.ProductCategory)
case "man":
return gocql.Marshal(info, p.Manufacturer)
case "model":
return gocql.Marshal(info, p.Model)
case "qty":
return gocql.Marshal(info, p.Quantity)
case "duration":
return gocql.Marshal(info, p.Duration)
case "starts":
return gocql.Marshal(info, p.Starts)
case "ends":
return gocql.Marshal(info, p.Ends)
case "currency":
return gocql.Marshal(info, p.Currency)
case "country":
return gocql.Marshal(info, p.Country)
case "rcode":
return gocql.Marshal(info, p.RegionCode)
case "region":
return gocql.Marshal(info, p.Region)
case "price":
return gocql.Marshal(info, p.Price)
case "discount":
return gocql.Marshal(info, p.Discount)
case "revenue":
return gocql.Marshal(info, p.Revenue)
case "margin":
return gocql.Marshal(info, p.Margin)
case "cost":
return gocql.Marshal(info, p.Cost)
case "tax":
return gocql.Marshal(info, p.Tax)
case "tax_rate":
return gocql.Marshal(info, p.TaxRate)
case "commission":
return gocql.Marshal(info, p.Commission)
case "referral":
return gocql.Marshal(info, p.Referral)
case "fees":
return gocql.Marshal(info, p.Fees)
case "subtotal":
return gocql.Marshal(info, p.Subtotal)
case "total":
return gocql.Marshal(info, p.Total)
case "payment":
return gocql.Marshal(info, p.Payment)
case "paid":
return gocql.Marshal(info, p.Paid)
default:
return nil, fmt.Errorf("unknown column for position: %q", name)
}
}
func (p *payment) UnmarshalUDT(name string, info gocql.TypeInfo, data []byte) error {
switch name {
case "invid":
return gocql.Unmarshal(info, data, &p.InvoiceID)
case "invoiced":
return gocql.Unmarshal(info, data, &p.Invoiced)
case "product":
return gocql.Unmarshal(info, data, &p.Product)
case "pid":
return gocql.Unmarshal(info, data, &p.ProductID)
case "pcat":
return gocql.Unmarshal(info, data, &p.ProductCategory)
case "man":
return gocql.Unmarshal(info, data, &p.Manufacturer)
case "model":
return gocql.Unmarshal(info, data, &p.Model)
case "qty":
return gocql.Unmarshal(info, data, &p.Quantity)
case "duration":
return gocql.Unmarshal(info, data, &p.Duration)
case "starts":
return gocql.Unmarshal(info, data, &p.Starts)
case "ends":
return gocql.Unmarshal(info, data, &p.Ends)
case "currency":
return gocql.Unmarshal(info, data, &p.Currency)
case "country":
return gocql.Unmarshal(info, data, &p.Country)
case "rcode":
return gocql.Unmarshal(info, data, &p.RegionCode)
case "region":
return gocql.Unmarshal(info, data, &p.Region)
case "price":
return gocql.Unmarshal(info, data, &p.Price)
case "discount":
return gocql.Unmarshal(info, data, &p.Discount)
case "revenue":
return gocql.Unmarshal(info, data, &p.Revenue)
case "margin":
return gocql.Unmarshal(info, data, &p.Margin)
case "cost":
return gocql.Unmarshal(info, data, &p.Cost)
case "tax":
return gocql.Unmarshal(info, data, &p.Tax)
case "tax_rate":
return gocql.Unmarshal(info, data, &p.TaxRate)
case "commission":
return gocql.Unmarshal(info, data, &p.Commission)
case "referral":
return gocql.Unmarshal(info, data, &p.Referral)
case "fees":
return gocql.Unmarshal(info, data, &p.Fees)
case "subtotal":
return gocql.Unmarshal(info, data, &p.Subtotal)
case "total":
return gocql.Unmarshal(info, data, &p.Total)
case "payment":
return gocql.Unmarshal(info, data, &p.Payment)
case "paid":
return gocql.Unmarshal(info, data, &p.Paid)
default:
return fmt.Errorf("unknown column for position: %q", name)
}
}