text: /**
   * 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.
   **/
  
  module.exports = function(RED) {
      "use strict";
      var fs = require("fs");
  
      function FileNode(n) {
          RED.nodes.createNode(this,n);
          this.filename = n.filename || "";
          this.appendNewline = n.appendNewline;
          this.overwriteFile = n.overwriteFile.toString();
          var node = this;
          this.on("input",function(msg) {
              var filename;
              if (msg.filename) {
                  if (n.filename && (n.filename !== msg.filename)) {
                      node.warn("Deprecated: msg properties should not override set node properties. See bit.ly/nr-override-msg-props");
                  }
                  filename = msg.filename;
                  node.status({fill:"grey",shape:"dot",text:msg.filename});
              } else {
                  filename = this.filename;
              }
              if (filename === "") {
                  node.warn('No filename specified');
              } else if (msg.hasOwnProperty('delete')) {
                  node.warn("Deprecated: please use specific delete option in config dialog.");
                  fs.unlink(filename, function (err) {
                      if (err) { node.warn('Failed to delete file : '+err); }
                  });
              } else if (typeof msg.payload != "undefined") {
                  var data = msg.payload;
                  if ((typeof data === "object")&&(!Buffer.isBuffer(data))) {
                      data = JSON.stringify(data);
                  }
                  if (typeof data === "boolean") { data = data.toString(); }
                  if ((this.appendNewline)&&(!Buffer.isBuffer(data))) { data += "\n"; }
                  if (this.overwriteFile === "true") {
                      // using "binary" not {encoding:"binary"} to be 0.8 compatible for a while
                      //fs.writeFile(filename, data, {encoding:"binary"}, function (err) {
                      fs.writeFile(filename, data, "binary", function (err) {
                          if (err) { node.warn('Failed to write to file : '+err); }
                          else if (RED.settings.verbose) { node.log('wrote to file: '+filename); }
                      });
                  }
                  else if (this.overwriteFile === "delete") {
                      fs.unlink(filename, function (err) {
                          if (err) { node.warn('Failed to delete file : '+err); }
                          else if (RED.settings.verbose) { node.log("deleted file: "+filename); }
                      });
                  }
                  else {
                      // using "binary" not {encoding:"binary"} to be 0.8 compatible for a while longer
                      //fs.appendFile(filename, data, {encoding:"binary"}, function (err) {
                      fs.appendFile(filename, data, "binary", function (err) {
                          if (err) { node.warn('Failed to append to file : '+err); }
                          else if (RED.settings.verbose) { node.log('appended to file: '+filename); }
                      });
                  }
              }
          });
      }
      RED.nodes.registerType("file",FileNode);
  
  
      function FileInNode(n) {
          RED.nodes.createNode(this,n);
  
          this.filename = n.filename || "";
          this.format = n.format;
          var node = this;
          var options = {};
          if (this.format) {
              options['encoding'] = this.format;
          }
          this.on("input",function(msg) {
              var filename;
              if (msg.filename) {
                  if (n.filename && (n.filename !== msg.filename)) {
                      node.warn("Deprecated: msg properties should not override set node properties. See bit.ly/nr-override-msg-props");
                  }
                  filename = msg.filename;
              } else {
                  filename = this.filename;
              }
              if (filename === "") {
                  node.warn('No filename specified');
              } else {
                  msg.filename = filename;
                  fs.readFile(filename,options,function(err,data) {
                      if (err) {
                          node.warn(err);
                          msg.error = err;
                          delete msg.payload;
                      } else {
                          msg.payload = data;
                          delete msg.error;
                      }
                      node.send(msg);
                  });
              }
          });
      }
      RED.nodes.registerType("file in",FileInNode);
  }
  