mirror of
https://github.com/node-red/node-red.git
synced 2023-10-10 13:36:53 +02:00
da61fe12d0
Closes #322 - nodes modules can be installed/removed dynamically at runtime - nodes can be enabled/disabled - onpaletteadd/onpaletteremove api added to node definitions - initial implementation of nr-cli
134 lines
3.5 KiB
JavaScript
134 lines
3.5 KiB
JavaScript
/**
|
|
* 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,
|
|
|
|
// Flow handling
|
|
loadFlows: flows.load,
|
|
stopFlows: flows.stopFlows,
|
|
setFlows: flows.setFlows,
|
|
getFlows: flows.getFlows,
|
|
|
|
// Credentials
|
|
addCredentials: credentials.add,
|
|
getCredentials: credentials.get,
|
|
deleteCredentials: credentials.delete
|
|
}
|
|
|