TimestampedEventTest.java

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 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
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 *
 * http://www.apache.org/licenses/LICENSE-2.0
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package org.apache.flume.sink.elasticsearch;

import com.google.common.collect.Maps;
import org.apache.flume.event.SimpleEvent;
import org.joda.time.DateTimeUtils;
import org.junit.Before;
import org.junit.Test;

import java.util.Map;

import static org.junit.Assert.assertArrayEquals;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNull;

public class TimestampedEventTest {
  static final long FIXED_TIME_MILLIS = 123456789L;

  @Before
  public void setFixedJodaTime() {
    DateTimeUtils.setCurrentMillisFixed(FIXED_TIME_MILLIS);
  }

  @Test
  public void shouldEnsureTimestampHeaderPresentInTimestampedEvent() {
    SimpleEvent base = new SimpleEvent();

    TimestampedEvent timestampedEvent = new TimestampedEvent(base);
    assertEquals(FIXED_TIME_MILLIS, timestampedEvent.getTimestamp());
    assertEquals(String.valueOf(FIXED_TIME_MILLIS),
            timestampedEvent.getHeaders().get("timestamp"));
  }

  @Test
  public void shouldUseExistingTimestampHeaderInTimestampedEvent() {
    SimpleEvent base = new SimpleEvent();
    Map<String, String> headersWithTimestamp = Maps.newHashMap();
    headersWithTimestamp.put("timestamp", "-321");
    base.setHeaders(headersWithTimestamp );

    TimestampedEvent timestampedEvent = new TimestampedEvent(base);
    assertEquals(-321L, timestampedEvent.getTimestamp());
    assertEquals("-321", timestampedEvent.getHeaders().get("timestamp"));
  }

  @Test
  public void shouldUseExistingAtTimestampHeaderInTimestampedEvent() {
    SimpleEvent base = new SimpleEvent();
    Map<String, String> headersWithTimestamp = Maps.newHashMap();
    headersWithTimestamp.put("@timestamp", "-999");
    base.setHeaders(headersWithTimestamp );

    TimestampedEvent timestampedEvent = new TimestampedEvent(base);
    assertEquals(-999L, timestampedEvent.getTimestamp());
    assertEquals("-999", timestampedEvent.getHeaders().get("@timestamp"));
    assertNull(timestampedEvent.getHeaders().get("timestamp"));
  }

  @Test
  public void shouldPreserveBodyAndNonTimestampHeadersInTimestampedEvent() {
    SimpleEvent base = new SimpleEvent();
    base.setBody(new byte[] {1,2,3,4});
    Map<String, String> headersWithTimestamp = Maps.newHashMap();
    headersWithTimestamp.put("foo", "bar");
    base.setHeaders(headersWithTimestamp );

    TimestampedEvent timestampedEvent = new TimestampedEvent(base);
    assertEquals("bar", timestampedEvent.getHeaders().get("foo"));
    assertArrayEquals(base.getBody(), timestampedEvent.getBody());
  }
}