io.github.portlek.sfs.status.Topology Maven / Gradle / Ivy

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A SFS Client.
There is a newer version: 5.7
package io.github.portlek.sfs.status;

import java.util.Collections;
import java.util.LinkedList;
import java.util.List;

public class Topology extends AbstractNode {

    public List DataCenters;

    public int Free;

    public int Max;

    public List Layouts;

    private Topology.Stats stats;

    public int getDataCenterCount() {
        if (this.stats == null) {
            this.computeStats();
        }
        if (this.stats == null) {
            return 0;
        }
        return this.stats.dcCount;
    }

    public int getRackCount() {
        if (this.stats == null) {
            this.computeStats();
        }
        if (this.stats == null) {
            return 0;
        }
        return this.stats.rackCount;
    }

    public int getDataNodeCount() {
        if (this.stats == null) {
            this.computeStats();
        }
        if (this.stats == null) {
            return 0;
        }
        return this.stats.nodeCount;
    }

    public List getDataNodes() {
        if (this.stats == null) {
            this.computeStats();
        }
        if (this.stats == null) {
            return Collections.emptyList();
        }
        return this.stats.nodeList;
    }

    @Override
    public String toString() {
        return "Topology{" +
            "DataCenters=" + this.DataCenters +
            ", Free=" + this.Free +
            ", Max=" + this.Max +
            ", Layouts=" + this.Layouts +
            ", stats=" + this.stats +
            '}';
    }

    private void computeStats() {
        if (this.DataCenters == null) {
            return;
        }
        this.stats = new Topology.Stats();
        for (final DataCenter dc : this.DataCenters) {
            this.stats.dcCount++;
            if (dc.Racks == null) {
                continue;
            }
            for (final Rack rack : dc.Racks) {
                this.stats.rackCount++;
                if (rack.DataNodes == null) {
                    continue;
                }
                this.stats.nodeCount += rack.DataNodes.size();
                this.stats.nodeList.addAll(rack.DataNodes);
            }
        }
    }

    private class Stats {

        int dcCount;

        int rackCount;

        int nodeCount;

        List nodeList = new LinkedList<>();

    }

}