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syslpb.go
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/
syslpb.go
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package importer
import (
"bytes"
"github.com/anz-bank/sysl/pkg/pbutil"
"github.com/anz-bank/sysl/pkg/printer"
"github.com/pkg/errors"
"github.com/sirupsen/logrus"
"github.com/spf13/afero"
)
type SyslPBImporter struct {
logger *logrus.Logger
}
// MakeSyslPBImporter is a factory method for creating new SyslPB importer.
func MakeSyslPBImporter(logger *logrus.Logger) *SyslPBImporter {
return &SyslPBImporter{logger: logger}
}
func (i *SyslPBImporter) LoadFile(path string) (string, error) {
m, err := pbutil.FromPB(path, afero.NewOsFs())
if err != nil {
return "", errors.Wrap(err, "Failed to load Sysl PB from "+path)
}
var buf bytes.Buffer
printer.Module(&buf, m)
return buf.String(), nil
}
// Load returns a Sysl spec equivalent to protoSpec.
func (i *SyslPBImporter) Load(content string) (string, error) {
m, err := pbutil.FromPBStringContents("import.pb", content)
if err != nil {
return "", errors.Wrap(err, "Failed to load Sysl PB from bytes")
}
var buf bytes.Buffer
printer.Module(&buf, m)
return buf.String(), nil
}
// Configure for Sysl PB files is a no-op; they are simply imported as-is.
func (i *SyslPBImporter) Configure(arg *ImporterArg) (Importer, error) {
return i, nil
}