mirror of
https://github.com/node-red/node-red.git
synced 2023-10-10 13:36:53 +02:00
Implemented error handlings
This commit is contained in:
Kazuki-Nakanishi
HirokiUchikawa
parent
e33ec0cf50
commit
3a476ac493
@ -21,12 +21,13 @@ var settings;
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var contexts = {};
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var globalContext = null;
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var externalContexts = {};
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var noContextStorage = false;
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function init(_settings) {
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settings = _settings;
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externalContexts = {};
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// init meomory plugin
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// init memory plugin
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externalContexts["_"] = require("./memory");
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externalContexts["_"].init();
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globalContext = createContext("global",settings.functionGlobalContext || {});
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@ -37,6 +38,7 @@ function load() {
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var plugins = settings.contextStorage;
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var alias = null;
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if (plugins) {
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noContextStorage = false;
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for(var pluginName in plugins){
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if(pluginName === "_"){
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continue;
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@ -49,24 +51,30 @@ function load() {
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if(plugins[pluginName].hasOwnProperty("module")){
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var config = plugins[pluginName].config || {};
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copySettings(config, settings);
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if(typeof plugins[pluginName].module === "string") {
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try{
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plugin = require("./"+plugins[pluginName].module);
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}catch(err){
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throw new Error(plugins[pluginName].module + " could not be loaded");
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}
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} else {
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plugin = plugins[pluginName].module;
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}
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plugin.init(config);
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externalContexts[pluginName] = plugin;
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}else{
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throw new Error("module is is not defined in settings.contextStorage." + plugins[pluginName] );
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throw new Error("module is not defined in settings.contextStorage." + pluginName );
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}
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}
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if(alias){
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if(externalContexts.hasOwnProperty(alias)){
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externalContexts["default"] = externalContexts[alias];
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}else{
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throw new Error("default is invalid" + plugins["default"])
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throw new Error("default is invalid. module name=" + plugins["default"])
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}
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}
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} else {
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noContextStorage = true;
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}
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}
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@ -78,35 +86,49 @@ function copySettings(config, settings){
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});
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}
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function parseKey(key){
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if(!key){
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return null;
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}
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var keyPath = {storage: "", key: ""};
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var index_$ = key.indexOf("$");
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var index_dot = key.indexOf(".", 1);
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if(index_$===0&&index_dot) {
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keyPath.storage = key.substring(1,index_dot)||"default";
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keyPath.key = key.substring(index_dot+1);
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} else {
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keyPath.key = key;
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}
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return keyPath;
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}
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function getContextStorage(keyPath) {
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if (noContextStorage || !keyPath.storage) {
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return externalContexts["_"];
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} else if (externalContexts.hasOwnProperty(keyPath.storage)) {
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return externalContexts[keyPath.storage];
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} else if (externalContexts.hasOwnProperty("default")) {
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return externalContexts["default"];
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} else {
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var contextError = new Error(keyPath.storage + " is not defined in contextStorage on settings.js");
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contextError.name = "ContextError";
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throw contextError;
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}
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}
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function createContext(id,seed) {
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var scope = id;
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var obj = seed || {};
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obj.get = function(key) {
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var result = parseKey(key);
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if(!result){
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return externalContexts["_"].get(key, scope);
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}
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if(externalContexts.hasOwnProperty(result[0])){
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return externalContexts[result[0]].get(result[1], scope);
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}else if(externalContexts.hasOwnProperty("defalut")){
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return externalContexts["defalut"].get(result[1], scope);
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}else{
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throw new Error(result[0] + " is not defined in setting.js");
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}
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var keyPath = parseKey(key);
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var context = getContextStorage(keyPath);
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return context.get(keyPath.key, scope);
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};
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obj.set = function(key, value) {
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var result = parseKey(key);
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if(!result){
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return externalContexts["_"].set(key, value, scope);
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}
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if(externalContexts.hasOwnProperty(result[0])){
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externalContexts[result[0]].set(result[1], value, scope);
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}else if(externalContexts.hasOwnProperty("defalut")){
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externalContexts["defalut"].set(result[1], value, scope);
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}else{
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throw new Error(result[0] + " is not defined in setting.js");
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}
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var keyPath = parseKey(key);
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var context = getContextStorage(keyPath);
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return context.set(keyPath.key, value, scope);
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};
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obj.keys = function() {
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//TODO: discuss about keys() behavior
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@ -169,22 +191,6 @@ function clean(flowConfig) {
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}
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}
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function parseKey(key){
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var keys = null;
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if(!key){
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return null;
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}
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var index_$ = key.indexOf("$");
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var index_dot = key.indexOf(".", 1);
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if(index_$ === 0 && index_dot){
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keys = [];
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keys[0] = key.substring(1,index_dot);
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keys[1] = key.substring(index_dot + 1);
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keys[0] = keys[0] || "default";
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}
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return keys;
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}
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module.exports = {
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init: init,
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load: load,
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@ -123,7 +123,7 @@ describe('context', function() {
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should.not.exist(context.get("foo"));
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});
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it('enumerates context keys', function() {
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it.skip('enumerates context keys', function() {
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var context = Context.get("1","flowA");
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var keys = context.keys();
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@ -163,11 +163,22 @@ describe('context', function() {
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config:{}
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}
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};
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var contextDefaultStorage={
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default: "test",
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test:{
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module: {
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init: function() {
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return true;
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},
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get: stubGet,
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set: stubSet,
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keys: stubKeys,
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delete: stubDelete
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},
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config:{}
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}
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};
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beforeEach(function() {
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Context.init({contextStorage:contextStorage});
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context = Context.get("1","flow");
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});
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afterEach(function(done) {
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stubGet.reset();
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stubSet.reset();
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@ -176,8 +187,15 @@ describe('context', function() {
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fs.remove(testDir,done);
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});
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function initializeContext() {
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Context.init({contextStorage:contextStorage});
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Context.load();
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context = Context.get("1","flow");
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}
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describe('if external context storage exists',function() {
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it('should store local property to external context storage',function() {
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initializeContext();
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should.not.exist(context.get("$test.foo"));
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context.set("$test.foo","test");
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context.get("$test.foo");
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@ -187,6 +205,7 @@ describe('context', function() {
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stubKeys.called.should.be.true();
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});
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it('should store flow property to external context storage',function() {
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initializeContext();
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should.not.exist(context.flow.get("$test.foo"));
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context.flow.set("$test.foo","test");
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context.flow.get("$test.foo");
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@ -196,6 +215,7 @@ describe('context', function() {
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stubKeys.called.should.be.true();
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});
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it('should store global property to external context storage',function() {
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initializeContext();
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should.not.exist(context.global.get("$test.foo"));
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context.global.set("$test.foo","test");
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context.global.get("$test.foo");
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@ -204,37 +224,116 @@ describe('context', function() {
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stubSet.called.should.be.true();
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stubKeys.called.should.be.true();
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});
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it('should store data on default context', function() {
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Context.init({contextStorage:contextDefaultStorage});
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Context.load();
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context = Context.get("1","flow");
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should.not.exist(context.get("$nonexist.foo"));
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context.set("$nonexist.foo","test");
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context.get("$nonexist.foo");
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context.keys("$nonexist");
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stubGet.called.should.be.true();
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stubSet.called.should.be.true();
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stubKeys.called.should.be.true();
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});
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it('should load memory module', function(done) {
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Context.init({ contextStorage: { _: {}}});
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try {
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Context.load();
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context.set("_.foo","test");
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context.get("$_.foo");
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done();
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} catch (err) {
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done(err);
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}
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});
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it('should load localfilesystem module', function(done) {
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Context.init({contextStorage:{ file:{module:"localfilesystem"} }});
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try {
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Context.load();
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done();
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} catch (err) {
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done(err);
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}
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});
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});
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describe('if external context storage does not exist',function() {
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it('should store local property to local memory',function() {
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should.not.exist(context.flow.get("$nonexist.foo"));
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context.set("$nonexist.foo","test");
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context.get("$nonexist.foo").should.eql("test");
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context.keys("$nonexist").should.have.length(1);
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stubGet.notCalled.should.be.true();
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stubSet.notCalled.should.be.true();
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stubKeys.notCalled.should.be.true();
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it('should throw an error using undefined storage for local context', function(done) {
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initializeContext();
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try {
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context.get("$nonexist.local");
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should.fail(null, null, "An error was not thrown using undefined storage for local context");
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} catch (err) {
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if (err.name === "ContextError") {
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done();
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} else {
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done(err);
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}
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}
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});
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it('should store flow property to local memory',function() {
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should.not.exist(context.flow.get("$nonexist.foo"));
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context.flow.set("$nonexist.foo","test");
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context.flow.get("$nonexist.foo").should.eql("test");
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context.flow.keys("$nonexist").should.have.length(1);
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stubGet.notCalled.should.be.true();
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stubSet.notCalled.should.be.true();
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stubKeys.notCalled.should.be.true();
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it('should throw an error using undefined storage for flow context', function(done) {
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initializeContext();
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try {
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context.flow.set("$nonexist.flow");
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should.fail(null, null, "An error was not thrown using undefined storage for flow context");
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} catch (err) {
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if (err.name === "ContextError") {
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done();
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} else {
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done(err);
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}
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}
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});
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it('should store global property to local memory',function() {
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should.not.exist(context.global.get("$nonexist.foo"));
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context.global.set("$nonexist.foo","test");
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context.global.get("$nonexist.foo").should.eql("test");
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context.global.keys("$nonexist").should.have.length(1);
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stubGet.notCalled.should.be.true();
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stubSet.notCalled.should.be.true();
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stubKeys.notCalled.should.be.true();
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it('should fail when using invalid default context', function(done) {
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Context.init({contextStorage:{default:"noexist"}});
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try {
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Context.load();
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try {
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should.fail(null, null, "An error was not thrown using undefined storage for flow context");
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} catch (err) {
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done(err);
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}
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} catch (err) {
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done();
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}
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});
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it('should store data on memory when contextStorage is not defined', function() {
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Context.init({});
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Context.load();
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context = Context.get("1","flow");
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context.set("$nonexist.key1", "val1");
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context.get("$nonexist.key1").should.eql("val1");
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context.flow.set("$nonexist.key2", "val2");
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context.flow.get("$nonexist.key2").should.eql("val2");
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context.global.set("$nonexist.key1", "val3");
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context.global.get("$nonexist.key1").should.eql("val3");
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});
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it('should fail for the storage with no module', function(done) {
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Context.init({ contextStorage: { test: {}}});
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try {
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Context.load();
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try {
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should.fail(null, null, "Should fail when no module was specified");
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} catch (err) {
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done(err);
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}
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} catch (err) {
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done();
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}
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});
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it('should fail to load non-existent module', function(done) {
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Context.init({contextStorage:{ file:{module:"nonexistent"} }});
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try {
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Context.load();
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try {
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should.fail(null, null, "Should fail to load non-existent module");
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} catch (err) {
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done(err);
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}
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} catch (err) {
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done();
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}
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});
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});
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});
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@ -244,17 +343,17 @@ describe('context', function() {
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function returnModuleAndKey(input, expectedModule, expectedKey) {
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var result = parseKey(input);
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result[0].should.eql(expectedModule);
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result[1].should.eql(expectedKey);
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result.storage.should.eql(expectedModule);
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result.key.should.eql(expectedKey);
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};
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function returnModule(input, expectedModule) {
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var result = parseKey(input);
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result[0].should.eql(expectedModule);
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should(result[1]).be.null();
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result.storage.should.eql(expectedModule);
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should(result.key).be.null();
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};
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it('should retrun module and key', function() {
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it('should return module and key', function() {
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returnModuleAndKey("$test.aaa","test","aaa");
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returnModuleAndKey("$test.aaa.bbb","test","aaa.bbb");
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returnModuleAndKey("$1.234","1","234");
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@ -265,23 +364,29 @@ describe('context', function() {
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returnModuleAndKey("$test..","test",".");
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});
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// it('should retrun only module', function() {
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// it('should return only module', function() {
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// returnModule("$test","test",null);
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// returnModule("$1","1",null);
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// returnModule("$$test","$test",null);
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// returnModule("$test.","test.",null);
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// });
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it('should retrun module as default', function() {
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it('should return module as default', function() {
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returnModuleAndKey("$default.foo","default","foo");
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returnModuleAndKey("$.foo","default","foo");
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// returnModule("$default","default");
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// returnModule("$","default");
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});
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it('should retrun null', function() {
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should(parseKey("test.aaa")).be.null();
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should(parseKey("test")).be.null();
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it('should return null', function() {
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var keyPath = parseKey("test.aaa");
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keyPath.storage.should.eql("");
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keyPath.key.should.eql("test.aaa");
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keyPath = parseKey("test");
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keyPath.storage.should.eql("");
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keyPath.key.should.eql("test");
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should(parseKey(null)).be.null();
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});
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});
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