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node-red/red/runtime/nodes/context/memory.js

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/**
* Copyright JS Foundation and other contributors, http://js.foundation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
**/
var util = require("../../util");
var data;
var seedFlg = false;
var memory = {
init: function(config) {
data = {};
},
get: function(key, scope) {
if(!data[scope]){
data[scope] = {};
}
return util.getMessageProperty(data[scope],key);
},
set: function(key, value, scope) {
if(!data[scope]){
data[scope] = {};
}
util.setMessageProperty(data[scope],key,value);
},
keys: function(scope){
if(!data[scope]){
data[scope] = {};
}
var keysData = Object.keys(data[scope]);
if (scope !== "global") {
return keysData;
} else {
return keysData.filter(function (key) {
return key !== "set" && key !== "get" && key !== "keys";
});
}
},
delete: function(scope){
delete data[scope];
},
setGlobalContext: function(seed){
data["global"] = seed;
}
};
module.exports = memory;