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Use fs-extra instead of node-json-db
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@ -57,7 +57,6 @@
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"mqtt": "2.18.0",
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"multer": "1.3.0",
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"mustache": "2.3.0",
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"node-json-db": "0.7.5",
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"node-red-node-email": "0.1.*",
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"node-red-node-feedparser": "0.1.*",
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"node-red-node-rbe": "0.2.*",
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@ -14,25 +14,25 @@
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* limitations under the License.
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**/
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var JsonDB = require('node-json-db');
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var fs = require('fs-extra');
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var path = require("path");
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var when = require("when");
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var util = require("../../util");
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function createStorage(storageBaseDir, scope) {
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function getStoragePath(storageBaseDir, scope) {
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if(scope.indexOf(":") === -1){
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if(scope === "global"){
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return new JsonDB(path.join(storageBaseDir,"global",scope), true, true);
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return path.join(storageBaseDir,"global",scope);
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}else{ // scope:flow
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return new JsonDB(path.join(storageBaseDir,scope,"flow"), true, true);
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return path.join(storageBaseDir,scope,"flow");
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}
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}else{ // scope:local
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var ids = scope.split(":")
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return new JsonDB(path.join(storageBaseDir,ids[1],ids[0]), true, true);
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return path.join(storageBaseDir,ids[1],ids[0]);
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}
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}
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function getStoragePath(config) {
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function getBasePath(config) {
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var base = config.base || "contexts";
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var storageBaseDir;
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if (!config.dir) {
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@ -62,10 +62,21 @@ function getStoragePath(config) {
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return storageBaseDir;
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}
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function loadFile(storagePath){
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return fs.pathExists(storagePath).then(function(exists){
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if(exists === true){
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return fs.readFile(storagePath, "utf8");
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}else{
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return when.resolve(undefined);
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}
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}).catch(function(err){
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throw when.reject(err);
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});
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}
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function LocalFileSystem(config){
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this.config = config;
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this.storageBaseDir = getStoragePath(this.config);
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this.storages = {};
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this.storageBaseDir = getBasePath(this.config);
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}
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LocalFileSystem.prototype.open = function(){
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@ -76,63 +87,49 @@ LocalFileSystem.prototype.close = function(){
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return when.resolve();
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}
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LocalFileSystem.prototype.get = function (scope, key) {
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if(!this.storages[scope]){
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this.storages[scope] = createStorage(this.storageBaseDir ,scope);
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}
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try{
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this.storages[scope].reload();
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return this.storages[scope].getData("/" + key.replace(/\./g,"/"));
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}catch(err){
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if(err.name === "DataError"){
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return undefined;
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}else{
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throw err;
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}
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}
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}
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LocalFileSystem.prototype.set = function(scope, key, value) {
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if(!this.storages[scope]){
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this.storages[scope] = createStorage(this.storageBaseDir ,scope);
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}
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if(value){
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this.storages[scope].push("/" + key.replace(/\./g,"/"), value);
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}else{
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this.storages[scope].delete("/" + key.replace(/\./g,"/"));
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}
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}
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LocalFileSystem.prototype.keys = function(scope) {
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if(!this.storages[scope]){
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this.storages[scope] = createStorage(this.storageBaseDir ,scope);
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}
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return Object.keys(this.storages[scope].getData("/"));
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}
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LocalFileSystem.prototype.getAsync = function(scope, key) {
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return when.resolve(this.get(scope, key));
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var storagePath = getStoragePath(this.storageBaseDir ,scope);
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return loadFile(storagePath).then(function(data){
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if(data){
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return util.getMessageProperty(JSON.parse(data),key);
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}else{
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return undefined
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}
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}).catch(function(err){
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return when.reject(err);
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});
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};
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LocalFileSystem.prototype.setAsync =function(scope, key, value) {
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return when.resolve(this.set(scope, key, value));
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var storagePath = getStoragePath(this.storageBaseDir ,scope);
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return loadFile(storagePath).then(function(data){
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var obj = data ? JSON.parse(data) : {}
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util.setMessageProperty(obj,key,value);
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return obj;
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}).then(function(obj){
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var str = JSON.stringify(obj, undefined, 4);
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return fs.outputFile(storagePath, str, "utf8");
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}).catch(function(err){
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return when.reject(err);
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});
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};
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LocalFileSystem.prototype.keysAsync = function(scope){
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return when.resolve(this.keys(scope));
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var storagePath = getStoragePath(this.storageBaseDir ,scope);
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return loadFile(storagePath).then(function(data){
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if(data){
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return Object.keys(JSON.parse(data));
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}else{
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return []
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}
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}).catch(function(err){
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return when.reject(err);
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});
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};
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LocalFileSystem.prototype.delete = function(scope){
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var self = this;
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if(this.storages[scope]){
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this.storages[scope].delete("/");
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return fs.remove(this.storages[scope].filename).then(function(){
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delete self.storages[scope];
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return when.resolve();
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});
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}else{
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return when.resolve();
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}
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var storagePath = getStoragePath(this.storageBaseDir ,scope);
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return fs.remove(storagePath);
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}
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LocalFileSystem.prototype.clean = function(activeNodes){
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@ -141,7 +138,6 @@ LocalFileSystem.prototype.clean = function(activeNodes){
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return when.all(dirs.reduce(function(result, item){
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if(item !== "global" && activeNodes.indexOf(item) === -1){
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result.push(fs.remove(path.join(self.storageBaseDir,item)));
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delete self.storages[item];
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}
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return result;
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},[]));
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