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Java support for Cloud Foundry's Loggregator using the Dropsonde protocol.
There is a newer version: 0.5
// Code generated by Wire protocol buffer compiler, do not edit.
// Source file: /Users/mheath/projects/snotel/target/checkout/client/src/main/proto/events/metric.proto
package events;

import com.squareup.wire.Message;
import com.squareup.wire.ProtoField;

import static com.squareup.wire.Message.Datatype.STRING;
import static com.squareup.wire.Message.Datatype.UINT64;
import static com.squareup.wire.Message.Label.REQUIRED;

/**
 * / A CounterEvent represents the increment of a counter. It contains only the change in the value; it is the responsibility of downstream consumers to maintain the value of the counter.
 */
public final class CounterEvent extends Message {

  public static final String DEFAULT_NAME = "";
  public static final Long DEFAULT_DELTA = 0L;
  public static final Long DEFAULT_TOTAL = 0L;

  @ProtoField(tag = 1, type = STRING, label = REQUIRED)
  public final String name;

  /**
   * / Name of the counter. Must be consistent for downstream consumers to associate events semantically.
   */
  @ProtoField(tag = 2, type = UINT64, label = REQUIRED)
  public final Long delta;

  /**
   * / Amount by which to increment the counter.
   */
  @ProtoField(tag = 3, type = UINT64)
  public final Long total;

  public CounterEvent(String name, Long delta, Long total) {
    this.name = name;
    this.delta = delta;
    this.total = total;
  }

  private CounterEvent(Builder builder) {
    this(builder.name, builder.delta, builder.total);
    setBuilder(builder);
  }

  @Override
  public boolean equals(Object other) {
    if (other == this) return true;
    if (!(other instanceof CounterEvent)) return false;
    CounterEvent o = (CounterEvent) other;
    return equals(name, o.name)
        && equals(delta, o.delta)
        && equals(total, o.total);
  }

  @Override
  public int hashCode() {
    int result = hashCode;
    if (result == 0) {
      result = name != null ? name.hashCode() : 0;
      result = result * 37 + (delta != null ? delta.hashCode() : 0);
      result = result * 37 + (total != null ? total.hashCode() : 0);
      hashCode = result;
    }
    return result;
  }

  public static final class Builder extends Message.Builder {

    public String name;
    public Long delta;
    public Long total;

    public Builder() {
    }

    public Builder(CounterEvent message) {
      super(message);
      if (message == null) return;
      this.name = message.name;
      this.delta = message.delta;
      this.total = message.total;
    }

    public Builder name(String name) {
      this.name = name;
      return this;
    }

    /**
     * / Name of the counter. Must be consistent for downstream consumers to associate events semantically.
     */
    public Builder delta(Long delta) {
      this.delta = delta;
      return this;
    }

    /**
     * / Amount by which to increment the counter.
     */
    public Builder total(Long total) {
      this.total = total;
      return this;
    }

    @Override
    public CounterEvent build() {
      checkRequiredFields();
      return new CounterEvent(this);
    }
  }
}