[CCSDK-28] populated the seed code for dgbuilder

[ccsdk/distribution.git] / dgbuilder / core_nodes / core / 58-debug.js

diff --git a/dgbuilder/core_nodes/core/58-debug.js b/dgbuilder/core_nodes/core/58-debug.js
new file mode 100644 (file)
index 0000000..7436bf2
--- /dev/null
+++ b/dgbuilder/core_nodes/core/58-debug.js
@@ -0,0 +1,114 @@
+/**
+ * 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.
+ **/
+
+module.exports = function(RED) {
+    var util = require("util");
+    var events = require("events");
+    var debuglength = RED.settings.debugMaxLength||1000;
+    var useColors = false;
+    // util.inspect.styles.boolean = "red";
+    
+    function DebugNode(n) {
+        RED.nodes.createNode(this,n);
+        this.name = n.name;
+        this.complete = n.complete;
+        this.console = n.console;
+        this.active = (n.active == null)||n.active;
+        var node = this;
+    
+        this.on("input",function(msg) {
+            if (this.complete == "true") { // debug complete msg object
+                if (this.console == "true") {
+                    node.log("\n"+util.inspect(msg, {colors:useColors, depth:10}));
+                }
+                if (this.active) {
+                    sendDebug({id:this.id,name:this.name,topic:msg.topic,msg:msg,_path:msg._path});
+                }
+            } else { // debug just the msg.payload
+                if (this.console == "true") {
+                    if (typeof msg.payload === "string") {
+                        node.log((msg.payload.indexOf("\n") != -1 ? "\n" : "") + msg.payload);
+                    }
+                    else if (typeof msg.payload === "object") { node.log("\n"+util.inspect(msg.payload, {colors:useColors, depth:10})); }
+                    else { node.log(util.inspect(msg.payload, {colors:useColors})); }
+                }
+                if (this.active) {
+                    sendDebug({id:this.id,name:this.name,topic:msg.topic,msg:msg.payload,_path:msg._path});
+                }
+            }
+        });
+    }
+   
+    RED.nodes.registerType("debug",DebugNode);
+    
+    function sendDebug(msg) {
+        if (msg.msg instanceof Error) {
+            msg.msg = msg.msg.toString();
+        } else if (msg.msg instanceof Buffer) {
+            msg.msg = "(Buffer) "+msg.msg.toString('hex');
+        } else if (typeof msg.msg === 'object') {
+            var seen = [];
+            var ty = "(Object) ";
+            if (util.isArray(msg.msg)) { ty = "(Array) "; }
+            msg.msg = ty + JSON.stringify(msg.msg, function(key, value) {
+                if (typeof value === 'object' && value !== null) {
+                    if (seen.indexOf(value) !== -1) { return "[circular]"; }
+                    seen.push(value);
+                }
+                return value;
+            }," ");
+            seen = null;
+        } else if (typeof msg.msg === "boolean") {
+            msg.msg = "(boolean) "+msg.msg.toString();
+        } else if (msg.msg === 0) {
+            msg.msg = "0";
+        } else if (msg.msg == null) {
+            msg.msg = "(undefined)";
+        }
+    
+        if (msg.msg.length > debuglength) {
+            msg.msg = msg.msg.substr(0,debuglength) +" ....";
+        }
+        
+        RED.comms.publish("debug",msg);
+    }
+    
+    DebugNode.logHandler = new events.EventEmitter();
+    DebugNode.logHandler.on("log",function(msg) {
+        if (msg.level == "warn" || msg.level == "error") {
+            sendDebug(msg);
+        }
+    });
+    RED.log.addHandler(DebugNode.logHandler);
+    
+    RED.httpAdmin.post("/debug/:id/:state", function(req,res) {
+        var node = RED.nodes.getNode(req.params.id);
+        var state = req.params.state;
+        if (node != null) {
+            if (state === "enable") {
+                node.active = true;
+                res.send(200);
+            } else if (state === "disable") {
+                node.active = false;
+                res.send(201);
+            } else {
+                res.send(404);
+            }
+        } else {
+            res.send(404);
+        }
+    });
+}