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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 | 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 2x 1x 1x 1x 17x 17x 5x 5x 5x 5x 5x 5x 5x 1x 25x 25x 1x 16x 16x 16x 16x 37x 16x 21x 21x 21x 16x 49x 49x 49x 46x 46x 2x 2x 1x 165734x 1x 436312x 217x 73x 73x 73x 73x 73x 73x 73x 6x 6x 6x 73x 124x 124x 122x 70x 70x 122x 2x 2x 2x 2x 65x 65x 28x 28x 28x 28x 24x 28x 4x 24x 37x 1x 61x 61x 61x 1x 4x 1x | import { Transform, TransformOptions, Readable } from "stream";
import { CSVParseParam, mergeParams } from "./Parameters";
import { ParseRuntime, initParseRuntime } from "./ParseRuntime";
import P from "bluebird";
import { Worker } from "./Worker";
import { stringToLines } from "./fileline";
import { map } from "lodash/map";
import { RowSplit, RowSplitResult } from "./rowSplit";
import getEol from "./getEol";
import lineToJson, { JSONResult } from "./lineToJson";
import { Processor, ProcessLineResult } from "./Processor";
import { ProcessorFork } from "./ProcessFork";
import { ProcessorLocal } from "./ProcessorLocal";
import { Result } from "./Result";
import CSVError from "./CSVError";
import { bufFromString } from "./util";
export class Converter extends Transform {
preRawData(onRawData: PreRawDataCallback) {
this.runtime.preRawDataHook = onRawData;
}
preFileLine(onFileLine: PreFileLineCallback) {
this.runtime.preFileLineHook = onFileLine;
}
subscribe(
onNext?: (data: any, lineNumber: number) => void | PromiseLike<void>,
onError?: (err: CSVError) => void,
onCompleted?: () => void): Converter {
this.parseRuntime.subscribe = {
onNext,
onError,
onCompleted
}
return this;
}
fromFile(filePath: string, options?: string | CreateReadStreamOption | undefined): Converter {
const fs = require("fs");
// var rs = null;
// this.wrapCallback(cb, function () {
// if (rs && rs.destroy) {
// rs.destroy();
// }
// });
fs.exists(filePath, (exist) => {
Eif (exist) {
const rs = fs.createReadStream(filePath, options);
rs.pipe(this);
} else {
this.emit('error', new Error("File does not exist. Check to make sure the file path to your csv is correct."));
}
});
return this;
}
fromStream(readStream: Readable): Converter {
readStream.pipe(this);
return this;
}
fromString(csvString: string): Converter {
const csv = csvString.toString();
const read = new Readable();
let idx = 0;
read._read = function (size) {
if (idx >= csvString.length) {
this.push(null);
} else {
const str = csvString.substr(idx, size);
this.push(str);
idx += size;
}
}
return this.fromStream(read);
}
then<TResult1 = any[], TResult2 = never>(onfulfilled?: (value: any[]) => TResult1 | PromiseLike<TResult1>, onrejected?: (reason: any) => TResult2 | PromiseLike<TResult2>): PromiseLike<TResult1 | TResult2> {
return new P((resolve, reject) => {
this.parseRuntime.then = {
onfulfilled: (value: any[]) => {
Eif (onfulfilled) {
resolve(onfulfilled(value));
} else {
resolve(value as any);
}
},
onrejected: (err: Error) => {
Eif (onrejected) {
resolve(onrejected(err));
} else {
reject(err);
}
}
}
});
}
public get parseParam(): CSVParseParam {
return this.params;
}
public get parseRuntime(): ParseRuntime {
return this.runtime;
}
private params: CSVParseParam;
private runtime: ParseRuntime;
private processor: Processor;
private result: Result;
constructor(param?: Partial<CSVParseParam>, public options: TransformOptions = {}) {
super(options);
this.params = mergeParams(param);
this.runtime = initParseRuntime(this);
this.result = new Result(this);
Iif (this.params.fork) {
this.processor = new ProcessorFork(this);
} else {
this.processor = new ProcessorLocal(this);
}
this.once("error", (err: any) => {
// console.log("BBB");
this.result.processError(err);
setTimeout(() => {
this.emit("done", err);
},0);
});
return this;
}
_transform(chunk: any, encoding: string, cb: Function) {
this.processor.process(chunk)
.then((result) => {
if (result.length > 0) {
this.runtime.started = true;
return this.result.processResult(result);
}
})
.then(() => {
cb();
}, (error) => {
this.runtime.hasError = true;
this.runtime.error = error;
this.emit("error", error);
cb();
});
}
_flush(cb: Function) {
if (this.runtime.csvLineBuffer && this.runtime.csvLineBuffer.length > 0) {
const buf = this.runtime.csvLineBuffer;
this.runtime.csvLineBuffer = undefined;
this.processor.process(buf, true)
.then((result) => {
if (result.length > 0) {
return this.result.processResult(result);
}
})
.then(() => {
if (this.runtime.csvLineBuffer && this.runtime.csvLineBuffer.length > 0) {
this.emit("error", CSVError.unclosed_quote(this.parsedLineNumber, this.runtime.csvLineBuffer.toString()));
} else {
this.processEnd(cb);
}
// cb();
}, (err) => {
this.emit("error", err);
cb();
})
} else {
this.processEnd(cb);
}
}
private processEnd(cb) {
this.result.endProcess();
this.emit("done");
cb();
}
get parsedLineNumber(): number {
return this.runtime.parsedLineNumber;
}
}
export interface CreateReadStreamOption {
flags?: string;
encoding?: string;
fd?: number;
mode?: number;
autoClose?: boolean;
start?: number;
end?: number;
highWaterMark?: number;
}
export type CallBack = (err: Error, data: Array<any>) => void;
export type PreFileLineCallback = (line: string, lineNumber: number) => string | PromiseLike<string>;
export type PreRawDataCallback = (csvString: string) => string | PromiseLike<string>;
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