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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/log.proto
package events;

import com.squareup.wire.Message;
import com.squareup.wire.ProtoEnum;
import com.squareup.wire.ProtoField;
import okio.ByteString;

import static com.squareup.wire.Message.Datatype.BYTES;
import static com.squareup.wire.Message.Datatype.ENUM;
import static com.squareup.wire.Message.Datatype.INT64;
import static com.squareup.wire.Message.Datatype.STRING;
import static com.squareup.wire.Message.Label.REQUIRED;

/**
 * / A LogMessage contains a "log line" and associated metadata.
 */
public final class LogMessage extends Message {

  public static final ByteString DEFAULT_MESSAGE = ByteString.EMPTY;
  public static final MessageType DEFAULT_MESSAGE_TYPE = MessageType.OUT;
  public static final Long DEFAULT_TIMESTAMP = 0L;
  public static final String DEFAULT_APP_ID = "";
  public static final String DEFAULT_SOURCE_TYPE = "";
  public static final String DEFAULT_SOURCE_INSTANCE = "";

  @ProtoField(tag = 1, type = BYTES, label = REQUIRED)
  public final ByteString message;

  /**
   * / Bytes of the log message. (Note that it is not required to be a single line.)
   */
  @ProtoField(tag = 2, type = ENUM, label = REQUIRED)
  public final MessageType message_type;

  /**
   * / Type of the message (OUT or ERR).
   */
  @ProtoField(tag = 3, type = INT64, label = REQUIRED)
  public final Long timestamp;

  /**
   * / UNIX timestamp (in nanoseconds) when the log was written.
   */
  @ProtoField(tag = 4, type = STRING)
  public final String app_id;

  /**
   * / Application that emitted the message (or to which the application is related).
   */
  @ProtoField(tag = 5, type = STRING)
  public final String source_type;

  /**
   * / Source of the message. For Cloud Foundry, this can be "APP", "RTR", "DEA", "STG", etc.
   */
  @ProtoField(tag = 6, type = STRING)
  public final String source_instance;

  public LogMessage(ByteString message, MessageType message_type, Long timestamp, String app_id, String source_type, String source_instance) {
    this.message = message;
    this.message_type = message_type;
    this.timestamp = timestamp;
    this.app_id = app_id;
    this.source_type = source_type;
    this.source_instance = source_instance;
  }

  private LogMessage(Builder builder) {
    this(builder.message, builder.message_type, builder.timestamp, builder.app_id, builder.source_type, builder.source_instance);
    setBuilder(builder);
  }

  @Override
  public boolean equals(Object other) {
    if (other == this) return true;
    if (!(other instanceof LogMessage)) return false;
    LogMessage o = (LogMessage) other;
    return equals(message, o.message)
        && equals(message_type, o.message_type)
        && equals(timestamp, o.timestamp)
        && equals(app_id, o.app_id)
        && equals(source_type, o.source_type)
        && equals(source_instance, o.source_instance);
  }

  @Override
  public int hashCode() {
    int result = hashCode;
    if (result == 0) {
      result = message != null ? message.hashCode() : 0;
      result = result * 37 + (message_type != null ? message_type.hashCode() : 0);
      result = result * 37 + (timestamp != null ? timestamp.hashCode() : 0);
      result = result * 37 + (app_id != null ? app_id.hashCode() : 0);
      result = result * 37 + (source_type != null ? source_type.hashCode() : 0);
      result = result * 37 + (source_instance != null ? source_instance.hashCode() : 0);
      hashCode = result;
    }
    return result;
  }

  public static final class Builder extends Message.Builder {

    public ByteString message;
    public MessageType message_type;
    public Long timestamp;
    public String app_id;
    public String source_type;
    public String source_instance;

    public Builder() {
    }

    public Builder(LogMessage message) {
      super(message);
      if (message == null) return;
      this.message = message.message;
      this.message_type = message.message_type;
      this.timestamp = message.timestamp;
      this.app_id = message.app_id;
      this.source_type = message.source_type;
      this.source_instance = message.source_instance;
    }

    public Builder message(ByteString message) {
      this.message = message;
      return this;
    }

    /**
     * / Bytes of the log message. (Note that it is not required to be a single line.)
     */
    public Builder message_type(MessageType message_type) {
      this.message_type = message_type;
      return this;
    }

    /**
     * / Type of the message (OUT or ERR).
     */
    public Builder timestamp(Long timestamp) {
      this.timestamp = timestamp;
      return this;
    }

    /**
     * / UNIX timestamp (in nanoseconds) when the log was written.
     */
    public Builder app_id(String app_id) {
      this.app_id = app_id;
      return this;
    }

    /**
     * / Application that emitted the message (or to which the application is related).
     */
    public Builder source_type(String source_type) {
      this.source_type = source_type;
      return this;
    }

    /**
     * / Source of the message. For Cloud Foundry, this can be "APP", "RTR", "DEA", "STG", etc.
     */
    public Builder source_instance(String source_instance) {
      this.source_instance = source_instance;
      return this;
    }

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

  public enum MessageType
      implements ProtoEnum {
    OUT(1),
    ERR(2);

    private final int value;

    private MessageType(int value) {
      this.value = value;
    }

    @Override
    public int getValue() {
      return value;
    }
  }
}