Reland: Refactor current GAE abstraction library to be free of the SDK*

go/src/infra/gae/libs/wrapper/taskqueue.go

Index: go/src/infra/gae/libs/wrapper/taskqueue.go
diff --git a/go/src/infra/gae/libs/wrapper/taskqueue.go b/go/src/infra/gae/libs/wrapper/taskqueue.go
deleted file mode 100644
index 7bda49a2ab1ea8f623bce50326ccc7454d628c7b..0000000000000000000000000000000000000000
--- a/go/src/infra/gae/libs/wrapper/taskqueue.go
+++ /dev/null
@@ -1,79 +0,0 @@
-// Copyright 2015 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-package wrapper
-
-import (
-	"golang.org/x/net/context"
-
-	"appengine/taskqueue"
-)
-
-// TQSingleReadWriter allows you to add or delete a single Task from a queue.
-// See appengine.taskqueue.
-type TQSingleReadWriter interface {
-	Add(task *taskqueue.Task, queueName string) (*taskqueue.Task, error)
-	Delete(task *taskqueue.Task, queueName string) error
-}
-
-// TQMultiReadWriter allows you to add or delete a batch of Tasks from a queue.
-// See appengine.taskqueue.
-type TQMultiReadWriter interface {
-	TQSingleReadWriter
-
-	AddMulti(tasks []*taskqueue.Task, queueName string) ([]*taskqueue.Task, error)
-	DeleteMulti(tasks []*taskqueue.Task, queueName string) error
-}
-
-// TQLeaser allows you to lease tasks from a Pull queue.
-// See appengine.taskqueue.
-type TQLeaser interface {
-	Lease(maxTasks int, queueName string, leaseTime int) ([]*taskqueue.Task, error)
-	LeaseByTag(maxTasks int, queueName string, leaseTime int, tag string) ([]*taskqueue.Task, error)
-	ModifyLease(task *taskqueue.Task, queueName string, leaseTime int) error
-}
-
-// TQPurger allows you to drain a queue without processing it. See
-// appengine.taskqueue.
-type TQPurger interface {
-	Purge(queueName string) error
-}
-
-// TQStatter allows you to obtain semi-realtime stats on the current state of
-// a queue. See appengine.taskqueue.
-type TQStatter interface {
-	QueueStats(queueNames []string, maxTasks int) ([]taskqueue.QueueStatistics, error)
-}
-
-// TaskQueue is the full interface to the Task Queue service.
-type TaskQueue interface {
-	TQMultiReadWriter
-	TQLeaser
-	TQPurger
-}
-
-// TQFactory is the function signature for factory methods compatible with
-// SetTQFactory.
-type TQFactory func(context.Context) TaskQueue
-
-// GetTQ gets the TaskQueue implementation from context.
-func GetTQ(c context.Context) TaskQueue {
-	if f, ok := c.Value(taskQueueKey).(TQFactory); ok && f != nil {
-		return f(c)
-	}
-	return nil
-}
-
-// SetTQFactory sets the function to produce TaskQueue instances, as returned by
-// the GetTQ method.
-func SetTQFactory(c context.Context, tqf TQFactory) context.Context {
-	return context.WithValue(c, taskQueueKey, tqf)
-}
-
-// SetTQ sets the current TaskQueue object in the context. Useful for testing
-// with a quick mock. This is just a shorthand SetTQFactory invocation to set
-// a factory which always returns the same object.
-func SetTQ(c context.Context, tq TaskQueue) context.Context {
-	return SetTQFactory(c, func(context.Context) TaskQueue { return tq })
-}