JLoadProfileUserGroups.java

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package com.griddynamics.jagger.user.test.configurations.load;

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.Objects;

import static java.util.Collections.singletonList;

public class JLoadProfileUserGroups implements JLoadProfile {

    private final List<JLoadProfileUsers> userGroups;
    private final int delayBetweenInvocationsInMilliseconds;
    private final int tickInterval;

    private JLoadProfileUserGroups(Builder builder) {
        this.userGroups = builder.userGroups;
        this.delayBetweenInvocationsInMilliseconds = builder.delayBetweenInvocationsInMilliseconds;
        this.tickInterval = builder.tickInterval;
    }

    public static Builder builder(JLoadProfileUsers userGroup) {
        return new Builder(userGroup);
    }

    public static Builder builder(JLoadProfileUsers userGroup, JLoadProfileUsers... userGroups) {
        return new Builder(userGroup, userGroups);
    }

    public static class Builder {
        static final int DEFAULT_TICK_INTERVAL = 1000;
        private final List<JLoadProfileUsers> userGroups;
        private int delayBetweenInvocationsInMilliseconds;

        // Tick interval doesn't have setter, since it's unclear if this field is needed. Check https://issues.griddynamics.net/browse/JFG-1000
        private int tickInterval;

        private Builder(JLoadProfileUsers userGroup) {
            Objects.requireNonNull(userGroup);
            this.userGroups = singletonList(userGroup);
            this.tickInterval = DEFAULT_TICK_INTERVAL;
        }

        public Builder(JLoadProfileUsers userGroup, JLoadProfileUsers... userGroups) {
            Objects.requireNonNull(userGroup);
            ArrayList<JLoadProfileUsers> groups = new ArrayList<>();
            groups.add(userGroup);
            Collections.addAll(groups, userGroups);
            this.userGroups = groups;
            this.tickInterval = DEFAULT_TICK_INTERVAL;
        }


        public JLoadProfileUserGroups build() {
            return new JLoadProfileUserGroups(this);
        }

        public Builder withDelayBetweenInvocationsInMilliseconds(int delayBetweenInvocationsInMilliseconds) {
            if (delayBetweenInvocationsInMilliseconds < 0) {
                throw new IllegalArgumentException(
                        String.format("Delay between invocations must be >= 0. Provided value is %s", delayBetweenInvocationsInMilliseconds));
            }
            this.delayBetweenInvocationsInMilliseconds = delayBetweenInvocationsInMilliseconds;
            return this;
        }
    }

    public List<JLoadProfileUsers> getUserGroups() {
        return userGroups;
    }

    public int getDelayBetweenInvocationsInMilliseconds() {
        return delayBetweenInvocationsInMilliseconds;
    }

    public int getTickInterval() {
        return tickInterval;
    }
}