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-rw-r--r--dgbuilder/red/nodes/index.js134
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diff --git a/dgbuilder/red/nodes/index.js b/dgbuilder/red/nodes/index.js
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--- a/dgbuilder/red/nodes/index.js
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-/**
- * Copyright 2013, 2014 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.
- **/
-var registry = require("./registry");
-var credentials = require("./credentials");
-var flows = require("./flows");
-var Node = require("./Node");
-
-/**
- * Registers a node constructor
- * @param type - the string type name
- * @param constructor - the constructor function for this node type
- * @param opts - optional additional options for the node
- */
-function registerType(type,constructor,opts) {
- if (opts && opts.credentials) {
- credentials.register(type,opts.credentials);
- }
- registry.registerType(type,constructor);
-}
-
-/**
- * Called from a Node's constructor function, invokes the super-class
- * constructor and attaches any credentials to the node.
- * @param node the node object being created
- * @param def the instance definition for the node
- */
-function createNode(node,def) {
- Node.call(node,def);
- var creds = credentials.get(node.id);
- if (creds) {
- node.credentials = creds;
- }
-}
-
-function init(_settings,storage) {
- credentials.init(storage);
- flows.init(storage);
- registry.init(_settings);
-}
-
-function checkTypeInUse(id) {
- var nodeInfo = registry.getNodeInfo(id);
- if (!nodeInfo) {
- throw new Error("Unrecognised id: "+info);
- }
- var inUse = {};
- flows.each(function(n) {
- inUse[n.type] = (inUse[n.type]||0)+1;
- });
- var nodesInUse = [];
- nodeInfo.types.forEach(function(t) {
- if (inUse[t]) {
- nodesInUse.push(t);
- }
- });
- if (nodesInUse.length > 0) {
- var msg = nodesInUse.join(", ");
- throw new Error("Type in use: "+msg);
- }
-}
-
-function removeNode(id) {
- checkTypeInUse(id);
- return registry.removeNode(id);
-}
-
-function removeModule(module) {
- var info = registry.getNodeModuleInfo(module);
- for (var i=0;i<info.nodes.length;i++) {
- checkTypeInUse(info.nodes[i]);
- }
- return registry.removeModule(module);
-}
-
-
-function disableNode(id) {
- checkTypeInUse(id);
- return registry.disableNode(id);
-}
-
-module.exports = {
- // Lifecycle
- init: init,
- load: registry.load,
-
- // Node registry
- createNode: createNode,
- getNode: flows.get,
-
- addNode: registry.addNode,
- removeNode: removeNode,
-
- addModule: registry.addModule,
- removeModule: removeModule,
-
- enableNode: registry.enableNode,
- disableNode: disableNode,
-
- // Node type registry
- registerType: registerType,
- getType: registry.get,
- getNodeInfo: registry.getNodeInfo,
- getNodeModuleInfo: registry.getNodeModuleInfo,
- getNodeList: registry.getNodeList,
- getNodeConfigs: registry.getNodeConfigs,
- getNodeConfig: registry.getNodeConfig,
- clearRegistry: registry.clear,
- cleanNodeList: registry.cleanNodeList,
-
- // Flow handling
- loadFlows: flows.load,
- stopFlows: flows.stopFlows,
- setFlows: flows.setFlows,
- getFlows: flows.getFlows,
-
- // Credentials
- addCredentials: credentials.add,
- getCredentials: credentials.get,
- deleteCredentials: credentials.delete
-}
-