@sap/dwf-generator/generator/dlm_profile/edit_dlm_profile.js

SAP HANA Data Warehousing Foundation - Generator

'use strict';

const loFs = require('fs');
const loLodash = require('lodash');

function EditDlmProfile(isPath, ioLog) {
  this.path = isPath;
  this.log = ioLog;
  this.data;
  this.readJson();
}

EditDlmProfile.prototype.readJson = function () {
  try {
    this.data = JSON.parse(loFs.readFileSync(this.path, 'utf8'));
    if (typeof this.loLog != 'undefined')
      this.loLog.info(`Read "${this.path}" successfully`);
  } catch (ioErr) {
    console.error(ioErr);
    if (typeof this.loLog != 'undefined')
      this.loLog.error('Fail to read DLM profile');
    throw new Error('Fail to read DLM profile');
  }
};

EditDlmProfile.prototype.writeJson = function (isMessage) {
  try {
    loFs.writeFileSync(this.path, JSON.stringify(this.data, null, 2));
    if (typeof this.loLog != 'undefined')
      this.loLog.info(isMessage);
  } catch (ioErr) {
    if (typeof this.loLog != 'undefined')
      this.loLog.error(ioErr);
    console.error(ioErr);
    process.exit(1);
  }
};

EditDlmProfile.prototype.get = function (isKey) {
  let loValue = loLodash.get(this.data, isKey);
  if (typeof loValue == 'undefined') {
    let loErr = new Error(`"${isKey}" is not defined in the dlm profile "${this.path}"`);
    throw loErr;
  }
  return loValue;
};

EditDlmProfile.prototype.set = function (isKey, ioValue) {
  loLodash.set(this.data, isKey, ioValue);
  this.writeJson(`writing ${ioValue} to "${isKey}" in "${this.path}"`);
};


EditDlmProfile.prototype.del = function (isKey) {
  this.data = loLodash.omit(this.data, isKey);
  this.writeJson(`deleting "${isKey}" in "${this.path}"`);
};

module.exports = EditDlmProfile;