constructor()

in ambari-metrics-grafana/ambari-metrics/query_ctrl.ts [42:122]

• 57 lines of code
• 4 McCabe index (conditional complexity)

    constructor($scope, $injector) {
        super($scope, $injector);
        this.errors = this.validateTarget(this.target);
        this.aggregators = ['none','avg', 'sum', 'min', 'max'];
        this.precisions = ['default','seconds', 'minutes', 'hours', 'days'];
        this.transforms = ['none','diff','rate'];
        this.seriesAggregators = ['none', 'avg', 'sum', 'min', 'max'];

        if (!this.target.aggregator) {
            this.target.aggregator = 'avg';
        }
        this.precisionInit = function () {
            if (typeof this.target.precision == 'undefined') {
                this.target.precision = "default";
            }
        };
        this.transform = function () {
            if (typeof this.target.transform == 'undefined') {
                this.target.transform = "none";
            }
        };
        this.seriesAggregator = function () {
            if (typeof $scope.target.seriesAggregator == 'undefined') {
                this.target.seriesAggregator = "none";
            }
        };
        $scope.$watch('target.app', function (newValue) {
            if (newValue === '') {
                this.target.metric = '';
                this.target.hosts = '';
                this.target.cluster = '';
            }
        });
        if (!this.target.downsampleAggregator) {
            this.target.downsampleAggregator = 'avg';
        }

        this.datasource.getAggregators().then(function(aggs) {
            this.aggregators = aggs;
        });

        this.suggestApps = (query, callback) => {
            this.datasource.suggestApps(query)
                .then(this.getTextValues)
                .then(callback);
        };

        this.suggestClusters = (query, callback) => {
            this.datasource.suggestClusters(this.target.app)
                .then(this.getTextValues)
                .then(callback);
        };

        this.suggestHosts = (query, callback) => {
            this.datasource.suggestHosts(this.target.app, this.target.cluster)
                .then(this.getTextValues)
                .then(callback);
        };

        this.suggestMetrics = (query, callback) => {
            this.datasource.suggestMetrics(query, this.target.app)
                .then(this.getTextValues)
                .then(callback);
        };

        this.suggestTagKeys = (query, callback) => {
            this.datasource.metricFindQuery('tag_names(' + this.target.metric + ')')
                .then(this.getTextValues)
                .then(callback);
        };

        this.suggestTagValues = (query, callback) => {
            this.datasource.metricFindQuery('tag_values(' + this.target.metric + ',' + this.target.currentTagKey + ')')
                .then(this.getTextValues)
                .then(callback);
        };

        this.getTextValues = (metricFindResult) => {
            return metricFindResult.map((value) => {return value.text });
        }
    }