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limits.go
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limits.go
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package filesystem
import (
validation "github.com/go-ozzo/ozzo-validation/v4"
"github.com/ARM-software/golang-utils/utils/config"
"github.com/ARM-software/golang-utils/utils/units/multiplication"
"github.com/ARM-software/golang-utils/utils/units/size"
)
type noLimits struct {
}
func (n *noLimits) GetMaxDepth() int64 {
return 0
}
func (n *noLimits) ApplyRecursively() bool {
return false
}
func (n *noLimits) Apply() bool {
return false
}
func (n *noLimits) GetMaxFileSize() int64 {
return 0
}
func (n *noLimits) GetMaxTotalSize() uint64 {
return 0
}
func (n *noLimits) GetMaxFileCount() int64 {
return 0
}
func (n *noLimits) Validate() error {
return nil
}
// Limits defines file system limits
type Limits struct {
MaxFileSize int64 `mapstructure:"max_file_size"`
MaxTotalSize uint64 `mapstructure:"max_total_size"`
MaxFileCount int64 `mapstructure:"max_file_count"`
MaxDepth int64 `mapstructure:"max_depth"`
Recursive bool `mapstructure:"recursive"`
}
func (l *Limits) ApplyRecursively() bool {
return l.Recursive
}
func (l *Limits) Apply() bool {
return true
}
func (l *Limits) GetMaxFileSize() int64 {
return l.MaxFileSize
}
func (l *Limits) GetMaxTotalSize() uint64 {
return l.MaxTotalSize
}
func (l *Limits) GetMaxFileCount() int64 {
return l.MaxFileCount
}
func (l *Limits) GetMaxDepth() int64 {
return l.MaxDepth
}
func (l *Limits) Validate() error {
validation.ErrorTag = "mapstructure"
// Validate Embedded Structs
err := config.ValidateEmbedded(l)
if err != nil {
return err
}
return validation.ValidateStruct(l,
validation.Field(&l.MaxFileSize, validation.Required.When(l.Apply())),
validation.Field(&l.MaxTotalSize, validation.Required.When(l.Apply())),
validation.Field(&l.MaxFileCount, validation.Required.When(l.Apply())),
validation.Field(&l.MaxDepth, validation.Required.When(l.Apply())),
)
}
// NoLimits defines no file system FileSystemLimits
func NoLimits() ILimits {
return &noLimits{}
}
// NewLimits defines file system FileSystemLimits.
func NewLimits(maxFileSize int64, maxTotalSize uint64, maxFileCount int64, maxDepth int64, recursive bool) ILimits {
return &Limits{
MaxFileSize: maxFileSize,
MaxTotalSize: maxTotalSize,
MaxFileCount: maxFileCount,
MaxDepth: maxDepth,
Recursive: recursive,
}
}
// DefaultLimits defines default file system limits
func DefaultLimits() ILimits {
return NewLimits(int64(size.GiB), uint64(10*size.GiB), multiplication.Mega, -1, true)
}
// DefaultZipLimits defines default file system limits for handling zips
func DefaultZipLimits() ILimits {
return RecursiveZipLimits(-1)
}
// RecursiveZipLimits defines file system limits for handling zips recursively
func RecursiveZipLimits(maxDepth int64) ILimits {
return NewLimits(int64(size.GiB), uint64(10*size.GiB), multiplication.Mega, maxDepth, true)
}
// DefaultNonRecursiveZipLimits defines default file system limits for handling zips
func DefaultNonRecursiveZipLimits() ILimits {
return NewLimits(int64(size.GiB), uint64(10*size.GiB), multiplication.Mega, 10, false)
}