/
config.go
225 lines (208 loc) · 5.62 KB
/
config.go
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package parse
import "strings"
import "errors"
type Config struct {
root Node
}
func (c *Config) GetValue(path string) (conf *Config, err error) {
ps := strings.Split(path, ".")
if (len(ps) == 0) {
err = errors.New("empty path")
return
} else {
v := c.root
for i := 0; i < len(ps); i++ {
key := ps[i]
if (v.Type() == NodeMap) {
node, _ := v.(*MapNode)
if n, ok := node.Nodes[key]; !ok {
err = errors.New("path not valid: " + key)
return
} else {
v = n
}
}
}
conf = &Config{root: v}
return
}
}
func (c *Config) String() string {
return c.root.String()
}
func (c *Config) GetString(path string) (val string, err error) {
conf, err := c.GetValue(path)
if err != nil {
return
}
if conf.root.Type() == NodeString {
if cstr, ok := conf.root.(*StringNode); ok {
val = cstr.Text
} else {
err = errors.New("not valid string: " + cstr.String())
}
} else {
err = errors.New("not valid string: " + path)
}
return
}
func (c *Config) GetDefaultString(path string, defaultVal string) string {
val, err := c.GetString(path)
if err != nil {
return defaultVal
}
return val
}
func (c *Config) GetBool(path string) (val bool, err error) {
conf, err := c.GetValue(path)
if err != nil {
return
}
if conf.root.Type() == NodeBool {
if cbool, ok := conf.root.(*BoolNode); ok {
val = cbool.True
} else {
err = errors.New("not valid bool: " + cbool.String())
}
} else {
err = errors.New("not valid bool: " + path)
}
return
}
func (c *Config) GetDefaultBool(path string, defaultVal bool) bool {
val, err := c.GetBool(path)
if err != nil {
return defaultVal
}
return val
}
func (c *Config) GetInt(path string) (val int64, err error) {
conf, err := c.GetValue(path)
if err != nil {
return
}
if conf.root.Type() == NodeNumber {
if cnum, ok := conf.root.(*NumberNode); ok {
switch {
case cnum.IsInt:
val = cnum.Int64
default:
err = errors.New("not valid int64: " + cnum.String())
}
} else {
err = errors.New("not valid int64: " + cnum.String())
}
} else {
err = errors.New("not valid int64: " + path)
}
return
}
func (c *Config) GetDefaultInt(path string, defaultVal int64) int64 {
val, err := c.GetInt(path)
if err != nil {
return defaultVal
}
return val
}
func (c *Config) GetUInt(path string) (val uint64, err error) {
conf, err := c.GetValue(path)
if err != nil {
return
}
if conf.root.Type() == NodeNumber {
if cnum, ok := conf.root.(*NumberNode); ok {
switch {
case cnum.IsUint:
val = cnum.Uint64
default:
err = errors.New("not valid uint64: " + cnum.String())
}
} else {
err = errors.New("not valid uint64: " + cnum.String())
}
} else {
err = errors.New("not valid uint64: " + path)
}
return
}
func (c *Config) GetDefaultUInt(path string, defaultVal uint64) uint64 {
val, err := c.GetUInt(path)
if err != nil {
return defaultVal
}
return val
}
func (c *Config) GetFloat(path string) (val float64, err error) {
conf, err := c.GetValue(path)
if err != nil {
return
}
if conf.root.Type() == NodeNumber {
if cnum, ok := conf.root.(*NumberNode); ok {
switch {
case cnum.IsFloat:
val = cnum.Float64
default:
err = errors.New("not valid float64: " + cnum.String())
}
} else {
err = errors.New("not valid float64: " + cnum.String())
}
} else {
err = errors.New("not valid float64: " + path)
}
return
}
func (c *Config) GetDefaultFloat(path string, defaultVal float64) float64 {
val, err := c.GetFloat(path)
if err != nil {
return defaultVal
}
return val
}
func (c *Config) GetComplex(path string) (val complex128, err error) {
conf, err := c.GetValue(path)
if err != nil {
return
}
if conf.root.Type() == NodeNumber {
if cnum, ok := conf.root.(*NumberNode); ok {
switch {
case cnum.IsComplex:
val = cnum.Complex128
default:
err = errors.New("not valid complex: " + cnum.String())
}
} else {
err = errors.New("not valid complex: " + cnum.String())
}
} else {
err = errors.New("not valid complex: " + path)
}
return
}
func (c *Config) GetDefaultComplex(path string, defaultVal complex128) complex128 {
val, err := c.GetComplex(path)
if err != nil {
return defaultVal
}
return val
}
func (c *Config) GetArray(path string) (vals []*Config, err error) {
conf, err := c.GetValue(path)
if err != nil {
return
}
if conf.root.Type() == NodeList {
if clist, ok := conf.root.(*ListNode); ok {
for _, n := range clist.Nodes {
vals = append(vals, &Config{root: n})
}
} else {
err = errors.New("not valid list node: " + clist.String())
}
} else {
err = errors.New("not valid list node: " + path)
}
return
}