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filter.js
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filter.js
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var fs = require('fs');
var inputFolder = __dirname + '/data';
var outputFolder = __dirname + '/data_output';
var filterFile = __dirname + '/filter.txt';
var inputFiles = fs.readdirSync(inputFolder).filter(function(file) {
return file.slice(-5) === ".json";
});
var filterWords = fs.readFileSync(filterFile).toString().split("\n");
filterWords = filterWords.map(function(wrd) { return wrd.trim(); });
mkdir(outputFolder);
for (var i = 0; i < inputFiles.length; i++) {
var inputfile = inputFolder + '/' + inputFiles[i];
var outputfile = outputFolder + '/' + inputFiles[i];
// var inputObj = JSON.parse(fs.readFileSync(inputfile));
var inputObj = JSON.parse(fs.readFileSync(inputfile).toString('utf8').replace(/^\uFEFF/, '')); // remove BOM from file data
exploreJsonNode(inputObj, inputObj, []);
fs.writeFileSync(outputfile, JSON.stringify(inputObj, null, '\t'));
}
// var exec = require('child_process').exec;
// exec('start "" "chrome" "jsonTreeViewer/index.html"');
console.log("done!");
function mkdir(dirPath) {
try {
fs.mkdirSync(dirPath);
console.log("Output folder create");
} catch (error) {
if (error.code === 'EEXIST') console.log("Output folder exist");
else throw error;
}
}
function exploreJsonNode(srcObj, currObj, path) {
if (Object.prototype.toString.call(currObj) === '[object Object]') { // if Object - go deeper with save path
var keys = Object.keys(currObj);
for (var i = 0; i < keys.length; i++) {
exploreJsonNode(srcObj, currObj[keys[i]], path.concat(keys[i]));
}
if (Object.keys(currObj).length === 0) deleteDeepKey(srcObj, path);
} else if (Object.prototype.toString.call(currObj) === '[object Array]') { // if Array - go deeper with save path
for (var j = 0; j < currObj.length; j++) {
exploreJsonNode(srcObj, currObj[j], path.concat(j));
}
deleteEmptyFromArray(currObj);
if (currObj.length === 0) deleteDeepKey(srcObj, path);
} else { // check path
var findWord = false;
for (var k = 0; k < filterWords.length; k++) {
if (path[path.length - 1].indexOf(filterWords[k]) !== -1) { // If the path contains the searched value - delete it
findWord = true;
break;
}
}
if (!findWord) deleteDeepKey(srcObj, path);
}
}
function deleteDeepKey(obj, path) {
path.reduce(function(r, e, i) {
if (i === path.length - 1) {
delete r[e];
}
return r[e]
}, obj);
}
function deleteEmptyFromArray(arr) {
for (var l = 0; l < arr.length; l++) {
if (!arr[l]) {
arr.splice(l, 1);
l--;
}
}
}