grafana-zabbix/dist/datasource-zabbix/metricFunctions.js

'use strict';

System.register(['lodash', 'jquery'], function (_export, _context) {
  "use strict";

  var _, $, _createClass, index, categories, FuncInstance;

  function _classCallCheck(instance, Constructor) {
    if (!(instance instanceof Constructor)) {
      throw new TypeError("Cannot call a class as a function");
    }
  }

  function addFuncDef(funcDef) {
    funcDef.params = funcDef.params || [];
    funcDef.defaultParams = funcDef.defaultParams || [];

    if (funcDef.category) {
      categories[funcDef.category].push(funcDef);
    }
    index[funcDef.name] = funcDef;
    index[funcDef.shortName || funcDef.name] = funcDef;
  }

  // Transform

  function createFuncInstance(funcDef, params) {
    if (_.isString(funcDef)) {
      if (!index[funcDef]) {
        throw { message: 'Method not found ' + name };
      }
      funcDef = index[funcDef];
    }
    return new FuncInstance(funcDef, params);
  }

  _export('createFuncInstance', createFuncInstance);

  function getFuncDef(name) {
    return index[name];
  }

  _export('getFuncDef', getFuncDef);

  function getCategories() {
    return categories;
  }

  _export('getCategories', getCategories);

  return {
    setters: [function (_lodash) {
      _ = _lodash.default;
    }, function (_jquery) {
      $ = _jquery.default;
    }],
    execute: function () {
      _createClass = function () {
        function defineProperties(target, props) {
          for (var i = 0; i < props.length; i++) {
            var descriptor = props[i];
            descriptor.enumerable = descriptor.enumerable || false;
            descriptor.configurable = true;
            if ("value" in descriptor) descriptor.writable = true;
            Object.defineProperty(target, descriptor.key, descriptor);
          }
        }

        return function (Constructor, protoProps, staticProps) {
          if (protoProps) defineProperties(Constructor.prototype, protoProps);
          if (staticProps) defineProperties(Constructor, staticProps);
          return Constructor;
        };
      }();

      index = [];
      categories = {
        Transform: [],
        Aggregate: [],
        Filter: [],
        Trends: [],
        Time: [],
        Alias: []
      };
      addFuncDef({
        name: 'groupBy',
        category: 'Transform',
        params: [{ name: 'interval', type: 'string' }, { name: 'function', type: 'string', options: ['avg', 'min', 'max', 'sum', 'count', 'median'] }],
        defaultParams: ['1m', 'avg']
      });

      addFuncDef({
        name: 'scale',
        category: 'Transform',
        params: [{ name: 'factor', type: 'float', options: [100, 0.01, 10, -1] }],
        defaultParams: [100]
      });

      addFuncDef({
        name: 'delta',
        category: 'Transform',
        params: [],
        defaultParams: []
      });

      // Aggregate

      addFuncDef({
        name: 'sumSeries',
        category: 'Aggregate',
        params: [],
        defaultParams: []
      });

      addFuncDef({
        name: 'median',
        category: 'Aggregate',
        params: [{ name: 'interval', type: 'string' }],
        defaultParams: ['1m']
      });

      addFuncDef({
        name: 'average',
        category: 'Aggregate',
        params: [{ name: 'interval', type: 'string' }],
        defaultParams: ['1m']
      });

      addFuncDef({
        name: 'min',
        category: 'Aggregate',
        params: [{ name: 'interval', type: 'string' }],
        defaultParams: ['1m']
      });

      addFuncDef({
        name: 'max',
        category: 'Aggregate',
        params: [{ name: 'interval', type: 'string' }],
        defaultParams: ['1m']
      });

      addFuncDef({
        name: 'sum',
        category: 'Aggregate',
        params: [{ name: 'interval', type: 'string' }],
        defaultParams: ['1m']
      });

      addFuncDef({
        name: 'count',
        category: 'Aggregate',
        params: [{ name: 'interval', type: 'string' }],
        defaultParams: ['1m']
      });

      addFuncDef({
        name: 'aggregateBy',
        category: 'Aggregate',
        params: [{ name: 'interval', type: 'string' }, { name: 'function', type: 'string', options: ['avg', 'min', 'max', 'sum', 'count', 'median'] }],
        defaultParams: ['1m', 'avg']
      });

      // Filter

      addFuncDef({
        name: 'top',
        category: 'Filter',
        params: [{ name: 'number', type: 'int' }, { name: 'value', type: 'string', options: ['avg', 'min', 'max', 'sum', 'count', 'median'] }],
        defaultParams: [5, 'avg']
      });

      addFuncDef({
        name: 'bottom',
        category: 'Filter',
        params: [{ name: 'number', type: 'int' }, { name: 'value', type: 'string', options: ['avg', 'min', 'max', 'sum', 'count', 'median'] }],
        defaultParams: [5, 'avg']
      });

      // Trends

      addFuncDef({
        name: 'trendValue',
        category: 'Trends',
        params: [{ name: 'type', type: 'string', options: ['avg', 'min', 'max', 'sum', 'count'] }],
        defaultParams: ['avg']
      });

      // Time

      addFuncDef({
        name: 'timeShift',
        category: 'Time',
        params: [{ name: 'interval', type: 'string', options: ['24h', '7d', '1M', '+24h', '-24h'] }],
        defaultParams: ['24h']
      });

      //Alias

      addFuncDef({
        name: 'setAlias',
        category: 'Alias',
        params: [{ name: 'alias', type: 'string' }],
        defaultParams: []
      });

      addFuncDef({
        name: 'setAliasByRegex',
        category: 'Alias',
        params: [{ name: 'aliasByRegex', type: 'string' }],
        defaultParams: []
      });

      _.each(categories, function (funcList, catName) {
        categories[catName] = _.sortBy(funcList, 'name');
      });

      FuncInstance = function () {
        function FuncInstance(funcDef, params) {
          _classCallCheck(this, FuncInstance);

          this.def = funcDef;

          if (params) {
            this.params = params;
          } else {
            // Create with default params
            this.params = [];
            this.params = funcDef.defaultParams.slice(0);
          }

          this.updateText();
        }

        _createClass(FuncInstance, [{
          key: 'bindFunction',
          value: function bindFunction(metricFunctions) {
            var func = metricFunctions[this.def.name];
            if (func) {

              // Bind function arguments
              var bindedFunc = func;
              var param;
              for (var i = 0; i < this.params.length; i++) {
                param = this.params[i];

                // Convert numeric params
                if (this.def.params[i].type === 'int' || this.def.params[i].type === 'float') {
                  param = Number(param);
                }
                bindedFunc = _.partial(bindedFunc, param);
              }
              return bindedFunc;
            } else {
              throw { message: 'Method not found ' + this.def.name };
            }
          }
        }, {
          key: 'render',
          value: function render(metricExp) {
            var str = this.def.name + '(';
            var parameters = _.map(this.params, function (value, index) {

              var paramType = this.def.params[index].type;
              if (paramType === 'int' || paramType === 'float' || paramType === 'value_or_series' || paramType === 'boolean') {
                return value;
              } else if (paramType === 'int_or_interval' && $.isNumeric(value)) {
                return value;
              }

              return "'" + value + "'";
            }, this);

            if (metricExp) {
              parameters.unshift(metricExp);
            }

            return str + parameters.join(', ') + ')';
          }
        }, {
          key: '_hasMultipleParamsInString',
          value: function _hasMultipleParamsInString(strValue, index) {
            if (strValue.indexOf(',') === -1) {
              return false;
            }

            return this.def.params[index + 1] && this.def.params[index + 1].optional;
          }
        }, {
          key: 'updateParam',
          value: function updateParam(strValue, index) {
            // handle optional parameters
            // if string contains ',' and next param is optional, split and update both
            if (this._hasMultipleParamsInString(strValue, index)) {
              _.each(strValue.split(','), function (partVal, idx) {
                this.updateParam(partVal.trim(), idx);
              }, this);
              return;
            }

            if (strValue === '' && this.def.params[index].optional) {
              this.params.splice(index, 1);
            } else {
              this.params[index] = strValue;
            }

            this.updateText();
          }
        }, {
          key: 'updateText',
          value: function updateText() {
            if (this.params.length === 0) {
              this.text = this.def.name + '()';
              return;
            }

            var text = this.def.name + '(';
            text += this.params.join(', ');
            text += ')';
            this.text = text;
          }
        }]);

        return FuncInstance;
      }();
    }
  };
});
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