How to use

lastInstant

method

in

com.uber.hoodie.common.table.timeline.HoodieActiveTimeline

private Map<HeaderMetadataType, String> generateHeader(String commit) {
 // generate metadata
 Map<HeaderMetadataType, String> header = Maps.newHashMap();
 header.put(HeaderMetadataType.INSTANT_TIME, metaClient.getActiveTimeline().lastInstant().get().getTimestamp());
 header.put(HeaderMetadataType.TARGET_INSTANT_TIME, commit);
 header.put(HeaderMetadataType.COMMAND_BLOCK_TYPE, String.valueOf(HoodieCommandBlockTypeEnum.ROLLBACK_PREVIOUS_BLOCK
   .ordinal()));
 return header;
}

private Map<HeaderMetadataType, String> generateHeader(String commit) {
 // generate metadata
 Map<HeaderMetadataType, String> header = Maps.newHashMap();
 header.put(HeaderMetadataType.INSTANT_TIME, metaClient.getActiveTimeline().lastInstant().get().getTimestamp());
 header.put(HeaderMetadataType.TARGET_INSTANT_TIME, commit);
 header.put(HeaderMetadataType.COMMAND_BLOCK_TYPE, String.valueOf(HoodieCommandBlockTypeEnum.ROLLBACK_PREVIOUS_BLOCK
   .ordinal()));
 return header;
}

@Test
public void testTimelineOperationsBasic() throws Exception {
 timeline = new HoodieActiveTimeline(metaClient);
 assertTrue(timeline.empty());
 assertEquals("", 0, timeline.countInstants());
 assertEquals("", Optional.empty(), timeline.firstInstant());
 assertEquals("", Optional.empty(), timeline.nthInstant(5));
 assertEquals("", Optional.empty(), timeline.nthInstant(-1));
 assertEquals("", Optional.empty(), timeline.lastInstant());
 assertFalse("", timeline.containsInstant(new HoodieInstant(false, HoodieTimeline.COMMIT_ACTION, "01")));
}

timeline.lastInstant().get().getTimestamp(), newCommitTime, HoodieTimeline.GREATER));