func (data *Data) Decompress() error {
if !data.IsCompressed() {
return nil
}
input := bytes.NewBuffer(data.Content)
var reader io.Reader
if data.ContentEncoding == ceDeflate {
reader = flate.NewReader(input)
} else if data.ContentEncoding == ceGzip {
var err error
if reader, err = gzip.NewReader(input); err != nil {
return err
}
} else {
return log.Error("unknown content-encoding",
log.WithValue("content-encoding", data.ContentEncoding))
}
writer := bytes.Buffer{}
_, err := io.Copy(&writer, reader)
if err != nil {
return err
}
data.Content = writer.Bytes()
data.ContentEncoding = ""
data.UncompressedLength = len(data.Content)
return nil
}
func ExampleWithError() error {
if err := doSomething(); err != nil {
return log.Error("doSomething failed",
log.WithError(err))
}
// ... more processing and then ...
return nil
}
func ExampleWithValue(n1, n2 int) error {
if err := doSomethingWith(n1, n2); err != nil {
return log.Error("doSomethingWith failed",
log.WithValue("n1", n1),
log.WithValue("n2", n2))
}
// ... more processing and then ...
return nil
}
func ExampleOption(ctx context.Context, n1, n2 int) error {
if err := doSomethingWith(n1, n2); err != nil {
return log.Error("cannot doSomething",
log.WithValue("n1", n1),
log.WithValue("n2", n2),
log.WithError(err),
log.WithContext(ctx))
}
// .. more processing and then ...
return nil
}
func ExampleNewContext(ctx context.Context, n1, n2 int) error {
ctx = log.NewContext(ctx, "n1", n1)
ctx = log.NewContext(ctx, "n2", n2)
if err := doSomethingWith(n1, n2); err != nil {
return log.Error("doSomethingWith failed",
log.WithError(err),
log.WithContext(ctx))
}
log.Debug("did something with",
log.WithContext(ctx))
// ... more processing and then ...
return nil
}