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node-red/red/storage/index.js

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/**
* Copyright 2013 IBM Corp.
*
* 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.
**/
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var when = require('when');
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var storageModule;
function moduleSelector(aSettings) {
var toReturn;
if (aSettings.storageModule) {
if (typeof aSettings.storageModule === "string") {
// TODO: allow storage modules to be specified by absolute path
toReturn = require("./"+aSettings.storageModule);
} else {
toReturn = aSettings.storageModule;
}
} else {
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toReturn = require("./localfilesystem");
}
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return toReturn;
}
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var storageModuleInterface = {
init : function(settings) {
try {
storageModule = moduleSelector(settings);
} catch (e) {
return when.reject(e);
}
return storageModule.init(settings);
},
getFlows : function() {
return storageModule.getFlows();
},
saveFlows : function(flows) {
return storageModule.saveFlows(flows);
},
getCredentials : function() {
return storageModule.getCredentials();
},
saveCredentials : function(credentials) {
return storageModule.saveCredentials(credentials);
},
getAllFlows : function() {
return storageModule.getAllFlows();
},
getFlow : function(fn) {
return storageModule.getFlow(fn);
},
saveFlow : function(fn, data) {
return storageModule.saveFlow(fn, data);
},
getLibraryEntry : function(type, path) {
return storageModule.getLibraryEntry(type, path);
},
saveLibraryEntry : function(type, path, meta, body) {
return storageModule.saveLibraryEntry(type, path, meta, body);
}
}
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module.exports = storageModuleInterface;