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package rrdformat
import (
"encoding/xml"
"strconv"
)
//const XMLNS = "https://oss.oetiker.ch/rrdtool/rrdtool-dump.xml"
func xmlStart(name string) xml.StartElement {
return xml.StartElement{
Name: xml.Name{
Local: name,
},
}
}
func (rrd RRD) MarshalXML(e *xml.Encoder, start xml.StartElement) error {
if err := e.EncodeToken(xml.Comment(" Round Robin Database Dump ")); err != nil {
return err
}
if err := e.EncodeToken(xml.CharData("\n")); err != nil {
return err
}
if err := e.EncodeToken(start); err != nil {
return err
}
// 1. Version
if err := e.EncodeElement(rrd.Header.Version, xmlStart("version")); err != nil {
return err
}
// 2. Step
if err := e.EncodeElement(rrd.Header.PDPStep, xmlStart("step")); err != nil {
return err
}
if err := e.EncodeToken(xml.CharData(" ")); err != nil {
return err
}
if err := e.EncodeToken(xml.Comment(" Seconds ")); err != nil {
return err
}
// 3. Last Update
if err := e.EncodeElement(rrd.LastUpdated, xmlStart("lastupdate")); err != nil {
return err
}
// blank line
if err := e.EncodeToken(xml.CharData("\n")); err != nil {
return err
}
// 3. Data Sources
for _, ds := range rrd.DSDefs {
if err := e.EncodeElement(ds, xmlStart("ds")); err != nil {
return err
}
}
// 4. Round Robin Archives
for _, rra := range rrd.RRADefs {
if err := e.EncodeElement(rra, xmlStart("rra")); err != nil {
return err
}
}
if err := e.EncodeToken(start.End()); err != nil {
return err
}
return nil
}
func (t TimeWithUsec) MarshalXML(e *xml.Encoder, start xml.StartElement) error {
if err := e.EncodeToken(start); err != nil {
return err
}
if err := e.EncodeToken(xml.CharData(strconv.FormatInt(int64(t.Sec), 10))); err != nil {
return err
}
if err := e.EncodeToken(start.End()); err != nil {
return err
}
if err := e.EncodeToken(xml.CharData(" ")); err != nil {
return err
}
if err := e.EncodeToken(xml.Comment(t.Time().Format(" 2006-01-02 15:04:05 MST "))); err != nil {
return err
}
return nil
}
func (ds DSDef) MarshalXML(e *xml.Encoder, start xml.StartElement) error {
if err := e.EncodeToken(start); err != nil {
return err
}
if err := e.EncodeElement(" "+ds.DSName+" ", xmlStart("name")); err != nil {
return err
}
if err := e.EncodeElement(" "+ds.DSType+" ", xmlStart("type")); err != nil {
return err
}
switch ds.DSType {
case DST_CDEF:
var rpnps []rrdbinary.RPNToken
for _, param := range ds.Params {
rpnps = append(rpnps, param.AsRPNTokens()...)
}
strs := make([]string, len(rpnps))
for _, rpnp := range rpnps {
switch Op(rpnp.Op) {
case OP_NUMBER:
strs = append(strs, fmt.Sprintf("%d", rpnp.Val))
case OP_VARIABLE:
if rpnp.Val < 0 || rpnp.Val >= len(rrd.DSDefs) {
return fmt.Errorf("out-of-bounds %s %d", Op(rpnp.Op), rpnp.Val)
}
strs = append(strs, rrd.DSDefs[int(rpnp.Val)].Name)
case OP_PREV_OTHER:
if rpnp.Val < 0 || rpnp.Val >= len(rrd.DSDefs) {
return fmt.Errorf("out-of-bounds %s %d", Op(rpnp.Op), rpnp.Val)
}
strs = append(strs, fmt.Sprintf("PREV(%s)", rrd.DSDefs[int(rpnp.Val)].Name))
default:
strs = append(strs, rpnp.Op.String())
}
}
if err := e.EncodeElement(strings.Join(strs, ","), xmlStart("cdef")); err != nil {
return err
}
default:
}
if err := e.EncodeToken(start.End()); err != nil {
return err
}
}
|
