/// <summary> /// Converts the string representation of the filter options. A return value indicates whether the conversion succeeded. /// </summary> /// <param name="str">A string containing the filter options to convert.</param> /// <param name="options">The converted options if successful.</param> /// <returns><c>true</c> if <paramref name="str"/> was converted successfully; otherwise, <c>false</c>.</returns> public static bool TryParse(string str, out AnalyticsFilterOptions options) { try { options = Parse(str); return(true); } catch { options = null; return(false); } }
/// <summary> /// Converts the string representation of the filter options. /// </summary> /// <param name="str">A string containing the filter options to convert.</param> /// <returns>The converted filter options.</returns> public static AnalyticsFilterOptions Parse(string str) { AnalyticsFilterOptions options = new AnalyticsFilterOptions(); string[] a = str.Split(';'); for (int i = 0; i < a.Length; i++) { string[] b = a[i].Split(','); if (i > 0) { options._filters.Add(AnalyticsFilterOperator.And); } for (int j = 0; j < b.Length; j++) { if (j > 0) { options._filters.Add(AnalyticsFilterOperator.Or); } Match m = Regex.Match(b[j], "^(ga:[a-zA-Z]+)(.{1,2})(.+?)$"); if (!m.Success) { throw new Exception("Unable to parse filter '" + b[j] + "'"); } if (AnalyticsMetric.TryGet(m.Groups[1].Value, out var metric) && AnalyticsMetricOperator.TryParse(m.Groups[2].Value, out var metricOperator)) { options._filters.Add(new AnalyticsMetricFilter(metric, metricOperator, StringUtils.UrlDecode(m.Groups[3].Value))); } else if (AnalyticsDimension.TryGet(m.Groups[1].Value, out var dimension) && AnalyticsDimensionOperator.TryParse(m.Groups[2].Value, out var dimensionOperator)) { options._filters.Add(new AnalyticsDimensionFilter(dimension, dimensionOperator, StringUtils.UrlDecode(m.Groups[3].Value))); } else { // Currently the parsing will only work if the specified dimension or // metric name matches a defined constant, so if Google adds a new // dimension or metric, the constants must be updated before the parsing // will work. I'm not sure how often Google adds new dimensions or metric, // so perhaps this isn't a problem throw new Exception("Unable to parse filter '" + b[j] + "'"); } } } return(options); }