| 1 | const Action = require ('./action');
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| 2 |
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| 3 | /**
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| 4 | * @class LegacyFunctionAction
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| 5 | *
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| 6 | * Adapter that converts a legacy function(req, res) to an AbstractAction for
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| 7 | * integration into Blueprint framework.
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| 8 | */
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| 9 | module.exports = Action.extend ({
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| 10 | execute (req, res) {
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| 11 | return new Promise ((resolve, reject) => {
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| 12 | let len = this.action.length;
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| 13 |
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| 14 | switch (len) {
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| 15 | case 2: {
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| 16 | // The action does not have a callback parameter.
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| 17 | this.action (req, res);
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| 18 | resolve (null);
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| 19 | break;
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| 20 | }
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| 21 |
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| 22 | case 3: {
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| 23 | // The action has a callback parameter.
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| 24 | this.action (req, res, (err) => {
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| 25 | if (!err) return resolve (null);
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| 26 | return reject (err);
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| 27 | });
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| 28 |
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| 29 | break;
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| 30 | }
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| 31 | }
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| 32 | });
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| 33 | }
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| 34 | });
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