jspurefix/dist/transport/ascii/ascii-msg-transmitter.js

pure node js fix engine

"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
exports.AsciiMsgTransmitter = void 0;
const ascii_1 = require("../../buffer/ascii");
const msg_transmitter_1 = require("../msg-transmitter");
const tsyringe_1 = require("tsyringe");
const di_tokens_1 = require("../../runtime/di-tokens");
let AsciiMsgTransmitter = class AsciiMsgTransmitter extends msg_transmitter_1.MsgTransmitter {
    constructor(config) {
        var _a, _b, _c;
        super(config.sessionContainer.resolve(di_tokens_1.DITokens.TransmitBuffer), config.definitions, config.description);
        this.config = config;
        this.msgSeqNum = ((_a = config.description.LastSentSeqNum) !== null && _a !== void 0 ? _a : 0) + 1;
        const buffer = this.buffer;
        const tf = new ascii_1.TimeFormatter(buffer);
        this.encoder = new ascii_1.AsciiEncoder(buffer, config.definitions, tf, (_b = config.delimiter) !== null && _b !== void 0 ? _b : ascii_1.AsciiChars.Soh, (_c = config.logDelimiter) !== null && _c !== void 0 ? _c : ascii_1.AsciiChars.Pipe);
        const components = config.definitions.component;
        this.header = components.get('StandardHeader');
        this.trailer = components.get('StandardTrailer');
    }
    checksum() {
        const buffer = this.buffer;
        const encoder = this.encoder;
        let checksum = buffer.sum();
        if (encoder.delimiter !== encoder.logDelimiter) {
            const changes = encoder.tags.nextTagPos;
            checksum -= changes * encoder.logDelimiter;
            checksum += changes * encoder.delimiter;
        }
        checksum = checksum % 256;
        return checksum;
    }
    encodeMessage(msgType, obj) {
        var _a, _b, _c, _d, _e, _f, _g;
        const encoder = this.encoder;
        const factory = this.config.factory;
        let headerProps = {};
        const { StandardHeader } = obj, bodyProps = __rest(obj, ["StandardHeader"]);
        if (StandardHeader) {
            const { BeginString, BodyLength, MsgType, SenderCompID, SendingTime, TargetCompID, TargetSubID } = StandardHeader, hp = __rest(StandardHeader, ["BeginString", "BodyLength", "MsgType", "SenderCompID", "SendingTime", "TargetCompID", "TargetSubID"]);
            headerProps = hp;
            headerProps.OrigSendingTime = SendingTime;
        }
        const msgSeqNum = this.msgSeqNum;
        const sendingTime = this.time || new Date();
        const hdr = (_a = factory === null || factory === void 0 ? void 0 : factory.header(msgType, msgSeqNum, sendingTime, headerProps)) !== null && _a !== void 0 ? _a : null;
        if (!hdr)
            return null;
        if (!headerProps.PossDupFlag) {
            this.msgSeqNum++;
        }
        const buffer = this.buffer;
        buffer.reset();
        const msgDef = this.definitions.message.get(msgType);
        if (!msgDef) {
            this.emit('error', new Error(`ascii transmitter cannot find definition for ${msgType}`));
            return null;
        }
        const headerName = (_c = (_b = this.header) === null || _b === void 0 ? void 0 : _b.name) !== null && _c !== void 0 ? _c : 'header';
        const trailerName = (_e = (_d = this.trailer) === null || _d === void 0 ? void 0 : _d.name) !== null && _e !== void 0 ? _e : 'trailer';
        encoder.encode(hdr, headerName);
        encoder.encode(bodyProps, msgDef.name);
        const lenPos = encoder.bodyLengthPos;
        const bodyLength = Math.max(4, (_f = this.config.description.BodyLengthChars) !== null && _f !== void 0 ? _f : 7);
        const len = buffer.getPos() - encoder.msgTypePos;
        buffer.patchPaddedNumberAtPos(lenPos, len, bodyLength);
        const checksum = this.checksum();
        const trl = (_g = factory === null || factory === void 0 ? void 0 : factory.trailer(checksum)) !== null && _g !== void 0 ? _g : null;
        if (trl) {
            encoder.encode(trl, trailerName);
        }
        return hdr;
    }
};
exports.AsciiMsgTransmitter = AsciiMsgTransmitter;
exports.AsciiMsgTransmitter = AsciiMsgTransmitter = __decorate([
    (0, tsyringe_1.injectable)(),
    __param(0, (0, tsyringe_1.inject)(di_tokens_1.DITokens.IJsFixConfig)),
    __metadata("design:paramtypes", [Object])
], AsciiMsgTransmitter);
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