dotcloud/docker

package plugins // import "github.com/docker/docker/pkg/plugins"

import (
    "fmt"
    "net/http"
)

type statusError struct {
    status int
    method string
    err    string
}

// Error returns a formatted string for this error type
func (e *statusError) Error() string {
    return fmt.Sprintf("%s: %v", e.method, e.err)
}

// IsNotFound indicates if the passed in error is from an http.StatusNotFound from the plugin
func IsNotFound(err error) bool {
    return isStatusError(err, http.StatusNotFound)
}

func isStatusError(err error, status int) bool {
    if err == nil {
        return false
    }
    e, ok := err.(*statusError)
    if !ok {
        return false
    }
    return e.status == status
}