dotcloud/docker

package errdefs

import (
    "net/http"
)

// FromStatusCode creates an errdef error, based on the provided HTTP status-code
func FromStatusCode(err error, statusCode int) error {
    if err == nil {
        return nil
    }
    switch statusCode {
    case http.StatusNotFound:
        return NotFound(err)
    case http.StatusBadRequest:
        return InvalidParameter(err)
    case http.StatusConflict:
        return Conflict(err)
    case http.StatusUnauthorized:
        return Unauthorized(err)
    case http.StatusServiceUnavailable:
        return Unavailable(err)
    case http.StatusForbidden:
        return Forbidden(err)
    case http.StatusNotModified:
        return NotModified(err)
    case http.StatusNotImplemented:
        return NotImplemented(err)
    case http.StatusInternalServerError:
        if IsCancelled(err) || IsSystem(err) || IsUnknown(err) || IsDataLoss(err) || IsDeadline(err) {
            return err
        }
        return System(err)
    default:
        switch {
        case statusCode >= 200 && statusCode < 400:
            // it's a client error
            return err
        case statusCode >= 400 && statusCode < 500:
            return InvalidParameter(err)
        case statusCode >= 500 && statusCode < 600:
            return System(err)
        default:
            return Unknown(err)
        }
    }
}