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author | 2017-08-28 05:25:46 -0900 | |
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committer | 2017-08-28 05:36:52 -0900 | |
commit | d1569975bb18f4359fac18aa98f55b69c248a3ad (patch) | |
tree | c8681eeac12dca8673ccf841705daac88bf01ca6 /dgbuilder/core_nodes/storage/50-file.js | |
parent | a016ea661ff5767a3539734c4c07ef974a6e4614 (diff) |
[CCSDK-28] populated the seed code for dgbuilder
updated the code to point to the new package name for sli
Change-Id: I3b5a1d05dc5193664fd4a667afdcd0b2354010a4
Issue-ID:{CCSDK-28}
Signed-off-by: Chinthakayala, Sheshashailavas (sc2914) <sc2914@att.com>
Signed-off-by: Chinthakayala, Sheshashailavas (sc2914) <sc2914@att.com>
Diffstat (limited to 'dgbuilder/core_nodes/storage/50-file.js')
-rw-r--r-- | dgbuilder/core_nodes/storage/50-file.js | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/dgbuilder/core_nodes/storage/50-file.js b/dgbuilder/core_nodes/storage/50-file.js new file mode 100644 index 00000000..d6cc4410 --- /dev/null +++ b/dgbuilder/core_nodes/storage/50-file.js @@ -0,0 +1,93 @@ +/** + * 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; + var node = this; + this.on("input",function(msg) { + var filename = msg.filename || this.filename; + if (filename === "") { + node.warn('No filename specified'); + } else if (msg.hasOwnProperty('delete')) { + fs.unlink(filename, function (err) { + if (err) { node.warn('Failed to delete file : '+err); } + //console.log('Deleted file",filename); + }); + } else if (typeof msg.payload != "undefined") { + var data = msg.payload; + if (typeof data === "object") { + if (!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) { + // using "binary" not {encoding:"binary"} to be 0.8 compatible for a while + fs.writeFile(filename, data, "binary", function (err) { + if (err) { node.warn('Failed to write to file : '+err); } + //console.log('Message written to file',filename); + }); + } + else { + // using "binary" not {encoding:"binary"} to be 0.8 compatible for a while + fs.appendFile(filename, data, "binary", function (err) { + if (err) { node.warn('Failed to append to file : '+err); } + //console.log('Message 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 = msg.filename || this.filename; + if (filename === "") { + node.warn('No filename specified'); + } else { + fs.readFile(filename,options,function(err,data) { + if (err) { + node.warn(err); + msg.error = err; + } else { + msg.filename = filename; + msg.payload = data; + } + node.send(msg); + }); + } + }); + } + RED.nodes.registerType("file in",FileInNode); +} |