X-Git-Url: https://git.r.bdr.sh/rbdr/cologne/blobdiff_plain/58906d77975b35fe93569f8083b90140124f9c41..ae85c067634676251e812765c81adfdef8f85f9d:/lib/formatters/simple.js

diff --git a/lib/formatters/simple.js b/lib/formatters/simple.js
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+++ b/lib/formatters/simple.js
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+'use strict';
+
+const Utilities = require('../utilities');
+
+/**
+ * Simple formatter. Outputs a predefined format:
+ * `[{{_timestamp}}][{{_levelString}}] {{_from}}: {{message}}`;
+ *
+ * @memberof Formatters
+ * @implements IFormatter
+ * @class Simple
+ */
+module.exports = class SimpleFormatter {
+
+  constructor(config) {
+
+    /**
+     * Flag that tells us whether or not to use ANSI color. Defaults to
+     * false.
+     *
+     * @name colorize
+     * @instance
+     * @memberof Formatters.Simple
+     * @type Boolean
+     * @default false
+     */
+    this.colorize = false;
+
+    Object.assign(this, config || {});
+  }
+
+  /**
+   * Main entry point, it will read the incoming log object and convert
+   * it to the output string.
+   *
+   * @function format
+   * @instance
+   * @memberof Formatters.Simple
+   * @param {tCologneLog} logObjet the log to format
+   * @return {String} the formatted object
+   */
+  format(logObject) {
+
+    const date = (new Date(Number(logObject._timestamp) / 1000000)).toISOString();
+    const levelString = this._colorize(logObject._levelString, logObject._level);
+
+    return `[${date}][${levelString}] ${logObject._from}: ${logObject.message}`;
+  }
+
+  _colorize(levelString, level) {
+
+    if (!this.colorize) {
+      return levelString;
+    }
+
+    const escapeCode = String.fromCharCode(27);
+    const color = escapeCode + Utilities.getAnsiCode(Utilities.getLevelAnsi(level));
+    const reset = escapeCode + Utilities.getAnsiCode('reset');
+
+    return color + levelString + reset;
+  }
+};