How to use PDFNodeStreamFsRangeReader method in wpt

Best JavaScript code snippet using wpt

node_stream.js

Source:node_stream.js

...55    }56  }, {57    key: 'getRangeReader',58    value: function getRangeReader(start, end) {59      var rangeReader = this.isFsUrl ? new PDFNodeStreamFsRangeReader(this, start, end) : new PDFNodeStreamRangeReader(this, start, end);60      this._rangeRequestReaders.push(rangeReader);61      return rangeReader;62    }63  }, {64    key: 'cancelAllRequests',65    value: function cancelAllRequests(reason) {66      if (this._fullRequest) {67        this._fullRequest.cancel(reason);68      }69      var readers = this._rangeRequestReaders.slice(0);70      readers.forEach(function (reader) {71        reader.cancel(reason);72      });73    }74  }]);75  return PDFNodeStream;76}();77var BaseFullReader = function () {78  function BaseFullReader(stream) {79    _classCallCheck(this, BaseFullReader);80    this._url = stream.url;81    this._done = false;82    this._errored = false;83    this._reason = null;84    this.onProgress = null;85    var source = stream.source;86    this._contentLength = source.length;87    this._loaded = 0;88    this._filename = null;89    this._disableRange = source.disableRange || false;90    this._rangeChunkSize = source.rangeChunkSize;91    if (!this._rangeChunkSize && !this._disableRange) {92      this._disableRange = true;93    }94    this._isStreamingSupported = !source.disableStream;95    this._isRangeSupported = !source.disableRange;96    this._readableStream = null;97    this._readCapability = (0, _util.createPromiseCapability)();98    this._headersCapability = (0, _util.createPromiseCapability)();99  }100  _createClass(BaseFullReader, [{101    key: 'read',102    value: function read() {103      var _this = this;104      return this._readCapability.promise.then(function () {105        if (_this._done) {106          return Promise.resolve({107            value: undefined,108            done: true109          });110        }111        if (_this._errored) {112          return Promise.reject(_this._reason);113        }114        var chunk = _this._readableStream.read();115        if (chunk === null) {116          _this._readCapability = (0, _util.createPromiseCapability)();117          return _this.read();118        }119        _this._loaded += chunk.length;120        if (_this.onProgress) {121          _this.onProgress({122            loaded: _this._loaded,123            total: _this._contentLength124          });125        }126        var buffer = new Uint8Array(chunk).buffer;127        return Promise.resolve({128          value: buffer,129          done: false130        });131      });132    }133  }, {134    key: 'cancel',135    value: function cancel(reason) {136      if (!this._readableStream) {137        this._error(reason);138        return;139      }140      this._readableStream.destroy(reason);141    }142  }, {143    key: '_error',144    value: function _error(reason) {145      this._errored = true;146      this._reason = reason;147      this._readCapability.resolve();148    }149  }, {150    key: '_setReadableStream',151    value: function _setReadableStream(readableStream) {152      var _this2 = this;153      this._readableStream = readableStream;154      readableStream.on('readable', function () {155        _this2._readCapability.resolve();156      });157      readableStream.on('end', function () {158        readableStream.destroy();159        _this2._done = true;160        _this2._readCapability.resolve();161      });162      readableStream.on('error', function (reason) {163        _this2._error(reason);164      });165      if (!this._isStreamingSupported && this._isRangeSupported) {166        this._error(new _util.AbortException('streaming is disabled'));167      }168      if (this._errored) {169        this._readableStream.destroy(this._reason);170      }171    }172  }, {173    key: 'headersReady',174    get: function get() {175      return this._headersCapability.promise;176    }177  }, {178    key: 'filename',179    get: function get() {180      return this._filename;181    }182  }, {183    key: 'contentLength',184    get: function get() {185      return this._contentLength;186    }187  }, {188    key: 'isRangeSupported',189    get: function get() {190      return this._isRangeSupported;191    }192  }, {193    key: 'isStreamingSupported',194    get: function get() {195      return this._isStreamingSupported;196    }197  }]);198  return BaseFullReader;199}();200var BaseRangeReader = function () {201  function BaseRangeReader(stream) {202    _classCallCheck(this, BaseRangeReader);203    this._url = stream.url;204    this._done = false;205    this._errored = false;206    this._reason = null;207    this.onProgress = null;208    this._loaded = 0;209    this._readableStream = null;210    this._readCapability = (0, _util.createPromiseCapability)();211    var source = stream.source;212    this._isStreamingSupported = !source.disableStream;213  }214  _createClass(BaseRangeReader, [{215    key: 'read',216    value: function read() {217      var _this3 = this;218      return this._readCapability.promise.then(function () {219        if (_this3._done) {220          return Promise.resolve({221            value: undefined,222            done: true223          });224        }225        if (_this3._errored) {226          return Promise.reject(_this3._reason);227        }228        var chunk = _this3._readableStream.read();229        if (chunk === null) {230          _this3._readCapability = (0, _util.createPromiseCapability)();231          return _this3.read();232        }233        _this3._loaded += chunk.length;234        if (_this3.onProgress) {235          _this3.onProgress({ loaded: _this3._loaded });236        }237        var buffer = new Uint8Array(chunk).buffer;238        return Promise.resolve({239          value: buffer,240          done: false241        });242      });243    }244  }, {245    key: 'cancel',246    value: function cancel(reason) {247      if (!this._readableStream) {248        this._error(reason);249        return;250      }251      this._readableStream.destroy(reason);252    }253  }, {254    key: '_error',255    value: function _error(reason) {256      this._errored = true;257      this._reason = reason;258      this._readCapability.resolve();259    }260  }, {261    key: '_setReadableStream',262    value: function _setReadableStream(readableStream) {263      var _this4 = this;264      this._readableStream = readableStream;265      readableStream.on('readable', function () {266        _this4._readCapability.resolve();267      });268      readableStream.on('end', function () {269        readableStream.destroy();270        _this4._done = true;271        _this4._readCapability.resolve();272      });273      readableStream.on('error', function (reason) {274        _this4._error(reason);275      });276      if (this._errored) {277        this._readableStream.destroy(this._reason);278      }279    }280  }, {281    key: 'isStreamingSupported',282    get: function get() {283      return this._isStreamingSupported;284    }285  }]);286  return BaseRangeReader;287}();288function createRequestOptions(url, headers) {289  return {290    protocol: url.protocol,291    auth: url.auth,292    host: url.hostname,293    port: url.port,294    path: url.path,295    method: 'GET',296    headers: headers297  };298}299var PDFNodeStreamFullReader = function (_BaseFullReader) {300  _inherits(PDFNodeStreamFullReader, _BaseFullReader);301  function PDFNodeStreamFullReader(stream) {302    _classCallCheck(this, PDFNodeStreamFullReader);303    var _this5 = _possibleConstructorReturn(this, (PDFNodeStreamFullReader.__proto__ || Object.getPrototypeOf(PDFNodeStreamFullReader)).call(this, stream));304    var handleResponse = function handleResponse(response) {305      _this5._headersCapability.resolve();306      _this5._setReadableStream(response);307      var getResponseHeader = function getResponseHeader(name) {308        return _this5._readableStream.headers[name.toLowerCase()];309      };310      var _validateRangeRequest = (0, _network_utils.validateRangeRequestCapabilities)({311        getResponseHeader: getResponseHeader,312        isHttp: stream.isHttp,313        rangeChunkSize: _this5._rangeChunkSize,314        disableRange: _this5._disableRange315      }),316          allowRangeRequests = _validateRangeRequest.allowRangeRequests,317          suggestedLength = _validateRangeRequest.suggestedLength;318      _this5._isRangeSupported = allowRangeRequests;319      _this5._contentLength = suggestedLength || _this5._contentLength;320      _this5._filename = (0, _network_utils.extractFilenameFromHeader)(getResponseHeader);321    };322    _this5._request = null;323    if (_this5._url.protocol === 'http:') {324      _this5._request = http.request(createRequestOptions(_this5._url, stream.httpHeaders), handleResponse);325    } else {326      _this5._request = https.request(createRequestOptions(_this5._url, stream.httpHeaders), handleResponse);327    }328    _this5._request.on('error', function (reason) {329      _this5._errored = true;330      _this5._reason = reason;331      _this5._headersCapability.reject(reason);332    });333    _this5._request.end();334    return _this5;335  }336  return PDFNodeStreamFullReader;337}(BaseFullReader);338var PDFNodeStreamRangeReader = function (_BaseRangeReader) {339  _inherits(PDFNodeStreamRangeReader, _BaseRangeReader);340  function PDFNodeStreamRangeReader(stream, start, end) {341    _classCallCheck(this, PDFNodeStreamRangeReader);342    var _this6 = _possibleConstructorReturn(this, (PDFNodeStreamRangeReader.__proto__ || Object.getPrototypeOf(PDFNodeStreamRangeReader)).call(this, stream));343    _this6._httpHeaders = {};344    for (var property in stream.httpHeaders) {345      var value = stream.httpHeaders[property];346      if (typeof value === 'undefined') {347        continue;348      }349      _this6._httpHeaders[property] = value;350    }351    _this6._httpHeaders['Range'] = 'bytes=' + start + '-' + (end - 1);352    _this6._request = null;353    if (_this6._url.protocol === 'http:') {354      _this6._request = http.request(createRequestOptions(_this6._url, _this6._httpHeaders), function (response) {355        _this6._setReadableStream(response);356      });357    } else {358      _this6._request = https.request(createRequestOptions(_this6._url, _this6._httpHeaders), function (response) {359        _this6._setReadableStream(response);360      });361    }362    _this6._request.on('error', function (reason) {363      _this6._errored = true;364      _this6._reason = reason;365    });366    _this6._request.end();367    return _this6;368  }369  return PDFNodeStreamRangeReader;370}(BaseRangeReader);371var PDFNodeStreamFsFullReader = function (_BaseFullReader2) {372  _inherits(PDFNodeStreamFsFullReader, _BaseFullReader2);373  function PDFNodeStreamFsFullReader(stream) {374    _classCallCheck(this, PDFNodeStreamFsFullReader);375    var _this7 = _possibleConstructorReturn(this, (PDFNodeStreamFsFullReader.__proto__ || Object.getPrototypeOf(PDFNodeStreamFsFullReader)).call(this, stream));376    var path = decodeURIComponent(_this7._url.path);377    if (fileUriRegex.test(_this7._url.href)) {378      path = path.replace(/^\//, '');379    }380    fs.lstat(path, function (error, stat) {381      if (error) {382        _this7._errored = true;383        _this7._reason = error;384        _this7._headersCapability.reject(error);385        return;386      }387      _this7._contentLength = stat.size;388      _this7._setReadableStream(fs.createReadStream(path));389      _this7._headersCapability.resolve();390    });391    return _this7;392  }393  return PDFNodeStreamFsFullReader;394}(BaseFullReader);395var PDFNodeStreamFsRangeReader = function (_BaseRangeReader2) {396  _inherits(PDFNodeStreamFsRangeReader, _BaseRangeReader2);397  function PDFNodeStreamFsRangeReader(stream, start, end) {398    _classCallCheck(this, PDFNodeStreamFsRangeReader);399    var _this8 = _possibleConstructorReturn(this, (PDFNodeStreamFsRangeReader.__proto__ || Object.getPrototypeOf(PDFNodeStreamFsRangeReader)).call(this, stream));400    var path = decodeURIComponent(_this8._url.path);401    if (fileUriRegex.test(_this8._url.href)) {402      path = path.replace(/^\//, '');403    }404    _this8._setReadableStream(fs.createReadStream(path, {405      start: start,406      end: end - 1407    }));408    return _this8;409  }410  return PDFNodeStreamFsRangeReader;411}(BaseRangeReader);...

Using AI Code Generation

1const PDFNodeStreamFsRangeReader = require("pdfjs-dist/lib/display/api").PDFNodeStreamFsRangeReader;2const wptools = require('wptools');3const fs = require('fs');4const request = require('request');5const path = require('path');6const pdfjsLib = require('pdfjs-dist');7const pdf = require('pdf-parse');8const pdfPath = path.join(__dirname, 'test.pdf');9const pdfPath1 = path.join(__dirname, 'test1.pdf');10const pdfPath2 = path.join(__dirname, 'test2.pdf');11wptools.setPdfReader(PDFNodeStreamFsRangeReader);12wptools.setPdfReader(PDFNodeStreamFsRangeReader);13var pdfParser = pdfPath => new Promise((resolve, reject) => {14    let pdfData = "";15    pdf(pdfPath).then(function (data) {16        console.log(data.numpages);17        console.log(data.numrender);18        console.log(data.info);19        console.log(data.metadata);20        console.log(data.version);21        console.log(data.text);22        pdfData = data.text;23        resolve(pdfData);24    });25});26var pdfParser1 = pdfPath1 => new Promise((resolve, reject) => {27    let pdfData = "";28    pdf(pdfPath1).then(function (data) {29        console.log(data.numpages);30        console.log(data.numrender);31        console.log(data.info);32        console.log(data.metadata);33        console.log(data.version);34        console.log(data.text);35        pdfData = data.text;36        resolve(pdfData);37    });38});39var pdfParser2 = pdfPath2 => new Promise((resolve, reject) => {40    let pdfData = "";41    pdf(pdfPath2).then(function (data) {42        console.log(data

Using AI Code Generation

1var fs = require('fs');2var PDFNodeStreamFsRangeReader = require('wptextextractor').PDFNodeStreamFsRangeReader;3var PDFTextExtractor = require('wptextextractor').PDFTextExtractor;4var reader = new PDFNodeStreamFsRangeReader('./test.pdf');5var extractor = new PDFTextExtractor(reader);6extractor.extract(function (err, pages) {7    if (err) {8        console.log(err);9        return;10    }11    console.log(pages);12    fs.writeFile("test.txt", pages, function(err) {13        if(err) {14            return console.log(err);15        }16        console.log("The file was saved!");17    }); 18});

Using AI Code Generation

1const fs = require('fs');2const wpt = require('wpt.js');3const pdfPath = './pdf/2019_01_11_19_41_34.pdf';4const pdfPath2 = './pdf/2019_01_11_19_41_34.pdf';5const pdfPath3 = './pdf/2019_01_11_19_41_34.pdf';6const pdfPath4 = './pdf/2019_01_11_19_41_34.pdf';7const pdfPath5 = './pdf/2019_01_11_19_41_34.pdf';8const pdfPath6 = './pdf/2019_01_11_19_41_34.pdf';9const pdfPath7 = './pdf/2019_01_11_19_41_34.pdf';10const pdfPath8 = './pdf/2019_01_11_19_41_34.pdf';11const pdfPath9 = './pdf/2019_01_11_19_41_34.pdf';12const pdfPath10 = './pdf/2019_01_11_19_41_34.pdf';13const pdfPath11 = './pdf/2019_01_11_19_41_34.pdf';14const pdfPath12 = './pdf/2019_01_11_19_41_34.pdf';15const pdfPath13 = './pdf/2019_01_11_19_41_34.pdf';16const pdfPath14 = './pdf/2019_01_11_19_41_34.pdf';17const pdfPath15 = './pdf/2019_01_11_19_41_34.pdf';18const pdfPath16 = './pdf/2019_01_11_19_41_34.pdf';19const pdfPath17 = './pdf/2019_01_11_19_41_34.pdf';20const pdfPath18 = './pdf/2019_01_11_19_41_34.pdf';21const pdfPath19 = './pdf/2019_01_11_19_41_34.pdf';22const pdfPath20 = './pdf/2019_01_11_19_41_34.pdf';23const pdfPath21 = './pdf/2019_01_11_19_41_34.pdf';

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