io.ebeaninternal.server.profile.DTimeMetricStats Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of ebean Show documentation

composite of common runtime dependencies for all platforms

There is a newer version: 15.10.0

package io.ebeaninternal.server.profile;

import io.ebean.metric.TimedMetricStats;

/**
 * Snapshot of the current statistics for a Counter or TimeCounter.
 */
class DTimeMetricStats implements TimedMetricStats {

  private String name;

  private final boolean collected;

  private String location;

  private final long count;

  private final long total;

  private final long max;

  DTimeMetricStats(String name, boolean collected, long count, long total, long max) {
    this.name = name;
    this.collected = collected;
    this.count = count;
    this.total = total;
    // collection is racy so sanitize the max value if it has not been set
    // this most likely would happen when count = 1 so max = mean
    this.max = max != Long.MIN_VALUE ? max : (count < 1 ? 0 : Math.round(total / count));
  }

  @Override
  public String toString() {
    StringBuilder sb = new StringBuilder();
    if (name != null) {
      sb.append("name:").append(name).append(" ");
    }
    sb.append("count:").append(count)
      .append(" total:").append(total)
      .append(" max:").append(max);
    if (location != null) {
      sb.append(" loc:").append(location);
    }
    return sb.toString();
  }

  @Override
  public void setLocation(String location) {
    this.location = location;
  }

  @Override
  public boolean initialCollection() {
    return !collected;
  }

  @Override
  public void setName(String name) {
    this.name = name;
  }

  @Override
  public String getName() {
    return name;
  }

  @Override
  public String getLocation() {
    return location;
  }

  /**
   * Return the count of values collected.
   */
  @Override
  public long getCount() {
    return count;
  }

  /**
   * Return the total of all the values.
   */
  @Override
  public long getTotal() {
    return total;
  }

  /**
   * Return the Max value collected.
   */
  @Override
  public long getMax() {
    return max;
  }

  /**
   * Return the mean value rounded up.
   */
  @Override
  public long getMean() {
    return (count < 1) ? 0L : Math.round((double)(total / count));
  }

}