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Viewing changes to src/gopkg.in/juju/charmstore.v5-unstable/internal/router/singleinclude.go

  • Committer: Nicholas Skaggs
  • Date: 2016-10-24 20:56:05 UTC
  • Revision ID: nicholas.skaggs@canonical.com-20161024205605-z8lta0uvuhtxwzwl
Initi with beta15

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src/gopkg.in/juju/charmstore.v5-unstable/internal/router/singleinclude.go
 
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// Copyright 2014 Canonical Ltd.
 
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// Licensed under the AGPLv3, see LICENCE file for details.
 
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package router // import "gopkg.in/juju/charmstore.v5-unstable/internal/router"
 
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import (
 
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        "encoding/json"
 
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        "net/http"
 
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        "net/url"
 
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        "gopkg.in/errgo.v1"
 
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)
 
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var _ BulkIncludeHandler = SingleIncludeHandler(nil)
 
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// SingleIncludeHandler implements BulkMetaHander for a non-batching
 
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// metadata retrieval function that can perform a GET only.
 
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type SingleIncludeHandler func(id *ResolvedURL, path string, flags url.Values, req *http.Request) (interface{}, error)
 
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// Key implements BulkMetadataHander.Key.
 
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func (h SingleIncludeHandler) Key() interface{} {
 
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        // Use a local type so that we are guaranteed that nothing
 
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        // other than SingleIncludeHandler can generate that key.
 
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        type singleMetaHandlerKey struct{}
 
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        return singleMetaHandlerKey(singleMetaHandlerKey{})
 
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}
 
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// HandleGet implements BulkMetadataHander.HandleGet.
 
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func (h SingleIncludeHandler) HandleGet(hs []BulkIncludeHandler, id *ResolvedURL, paths []string, flags url.Values, req *http.Request) ([]interface{}, error) {
 
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        results := make([]interface{}, len(hs))
 
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        for i, h := range hs {
 
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                h := h.(SingleIncludeHandler)
 
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                result, err := h(id, paths[i], flags, req)
 
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                if err != nil {
 
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                        // TODO(rog) include index of failed handler.
 
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                        return nil, errgo.Mask(err, errgo.Any)
 
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                }
 
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                results[i] = result
 
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        }
 
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        return results, nil
 
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}
 
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var errPutNotImplemented = errgo.New("PUT not implemented")
 
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// HandlePut implements BulkMetadataHander.HandlePut.
 
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func (h SingleIncludeHandler) HandlePut(hs []BulkIncludeHandler, id *ResolvedURL, paths []string, values []*json.RawMessage, req *http.Request) []error {
 
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        errs := make([]error, len(hs))
 
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        for i := range hs {
 
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                errs[i] = errPutNotImplemented
 
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        }
 
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        return errs
 
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}