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package exprhelpers
import (
"github.com/beevik/etree"
log "github.com/sirupsen/logrus"
)
var pathCache = make(map[string]etree.Path)
func XMLGetAttributeValue(xmlString string, path string, attributeName string) string {
if _, ok := pathCache[path]; !ok {
compiledPath, err := etree.CompilePath(path)
if err != nil {
log.Errorf("Could not compile path %s: %s", path, err)
return ""
}
pathCache[path] = compiledPath
}
compiledPath := pathCache[path]
doc := etree.NewDocument()
err := doc.ReadFromString(xmlString)
if err != nil {
log.Tracef("Could not parse XML: %s", err)
return ""
}
elem := doc.FindElementPath(compiledPath)
if elem == nil {
log.Debugf("Could not find element %s", path)
return ""
}
attr := elem.SelectAttr(attributeName)
if attr == nil {
log.Debugf("Could not find attribute %s", attributeName)
return ""
}
return attr.Value
}
func XMLGetNodeValue(xmlString string, path string) string {
if _, ok := pathCache[path]; !ok {
compiledPath, err := etree.CompilePath(path)
if err != nil {
log.Errorf("Could not compile path %s: %s", path, err)
return ""
}
pathCache[path] = compiledPath
}
compiledPath := pathCache[path]
doc := etree.NewDocument()
err := doc.ReadFromString(xmlString)
if err != nil {
log.Tracef("Could not parse XML: %s", err)
return ""
}
elem := doc.FindElementPath(compiledPath)
if elem == nil {
log.Debugf("Could not find element %s", path)
return ""
}
return elem.Text()
}
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