65 lines
2.2 KiB
Go
65 lines
2.2 KiB
Go
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// Copyright (c) 2019 Uber Technologies, Inc.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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package fx
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import (
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"context"
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"go.uber.org/fx/internal/lifecycle"
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)
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// Lifecycle allows constructors to register callbacks that are executed on
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// application start and stop. See the documentation for App for details on Fx
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// applications' initialization, startup, and shutdown logic.
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type Lifecycle interface {
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Append(Hook)
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}
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// A Hook is a pair of start and stop callbacks, either of which can be nil.
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// If a Hook's OnStart callback isn't executed (because a previous OnStart
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// failure short-circuited application startup), its OnStop callback won't be
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// executed.
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type Hook struct {
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OnStart func(context.Context) error
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OnStop func(context.Context) error
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}
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type lifecycleWrapper struct{ *lifecycle.Lifecycle }
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func (l *lifecycleWrapper) Append(h Hook) {
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l.Lifecycle.Append(lifecycle.Hook{
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OnStart: h.OnStart,
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OnStop: h.OnStop,
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})
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}
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func (l *lifecycleWrapper) startHookRecords() lifecycle.HookRecords {
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return l.StartHookRecords()
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}
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func (l *lifecycleWrapper) stopHookRecords() lifecycle.HookRecords {
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return l.StopHookRecords()
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}
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func (l *lifecycleWrapper) runningHookCaller() string {
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return l.RunningHookCaller()
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}
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