io.relayr.java.api.helpers.Aggregates Maven / Gradle / Ivy

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package io.relayr.java.api.helpers;

import io.relayr.java.helper.Validator;

public class Aggregates {

    public static String toList(Aggregate... aggregates) throws IllegalArgumentException {
        Validator.requireNotNullNotEmpty(aggregates, "Aggregate list can't be null or empty");
        String query = "";
        for (Aggregate aggregate : aggregates) query += aggregate.getName() + ",";
        return query.substring(0, query.length() - 1);
    }

    public enum Interval {

        i10s("10s", 10), i1m("1m", 60), i5m("5m", 300), i30m("30m", 1800), i1h("1h", 3600);

        private final String interval;
        private final int numSeconds;

        Interval(String interval, int seconds) {
            this.interval = interval;
            this.numSeconds = seconds;
        }

        public String getInterval() {
            return interval;
        }

        public int inSeconds() {
            return numSeconds;
        }

        @Override public String toString() {
            return interval;
        }
    }

    public enum Aggregate {

        COUNT, NUM_COUNT, AVG, MIN, MAX, BOOL_COUNT, BOOL_VALUES, STRING_COUNT, STRING_VALUES,
        LAT_LON_COUNT, LAT_LON_AVG, XYZ_COUNT, XYZ_AVG, LENGTH_AVG;

        public String getName() {
            String name = "";
            final char[] chars = this.name().toLowerCase().toCharArray();
            boolean underscore = false;
            for (char aChar : chars) {
                if (aChar != '_') {
                    if (underscore) {
                        name += Character.toUpperCase(aChar);
                        underscore = false;
                    } else name += aChar;
                } else {
                    underscore = true;
                }
            }
            return name;
        }

    }
}