78 lines
2.2 KiB
Go
78 lines
2.2 KiB
Go
// Mgmt
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// Copyright (C) 2013-2018+ James Shubin and the project contributors
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// Written by James Shubin <james@shubin.ca> and the project contributors
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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package facts
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import (
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"fmt"
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"github.com/purpleidea/mgmt/lang/interfaces"
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"github.com/purpleidea/mgmt/lang/types"
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)
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// FactFunc is a wrapper for the fact interface. It implements the fact
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// interface in terms of Func to reduce the two down to a single mechanism.
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type FactFunc struct { // implements `interfaces.Func`
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Fact Fact
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}
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// Validate makes sure we've built our struct properly.
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func (obj *FactFunc) Validate() error {
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if obj.Fact == nil {
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return fmt.Errorf("must specify a Fact in struct")
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}
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//return obj.Fact.Validate() // currently unused
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return nil
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}
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// Info returns some static info about itself.
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func (obj *FactFunc) Info() *interfaces.Info {
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return &interfaces.Info{
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Pure: false,
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Memo: false,
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Sig: &types.Type{
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Kind: types.KindFunc,
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// if Ord or Map are nil, this will panic things!
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Ord: []string{},
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Map: make(map[string]*types.Type),
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Out: obj.Fact.Info().Output,
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},
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Err: obj.Fact.Info().Err,
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}
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}
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// Init runs some startup code for this fact.
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func (obj *FactFunc) Init(init *interfaces.Init) error {
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return obj.Fact.Init(
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&Init{
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Hostname: init.Hostname,
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Output: init.Output,
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World: init.World,
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},
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)
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}
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// Stream returns the changing values that this function has over time.
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func (obj *FactFunc) Stream() error {
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return obj.Fact.Stream()
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}
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// Close runs some shutdown code for this function and turns off the stream.
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func (obj *FactFunc) Close() error {
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return obj.Fact.Close()
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}
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