Java SnapshotDescription.hasTable方法代码示例

import org.apache.hadoop.hbase.protobuf.generated.HBaseProtos.SnapshotDescription; //导入方法依赖的package包/类
/**
 * Return the handler if it is currently live and has the same snapshot target name.
 * The handler is removed from the sentinels map if completed.
 * @param sentinels live handlers
 * @param snapshot snapshot description
 * @return null if doesn't match, else a live handler.
 */
private synchronized SnapshotSentinel removeSentinelIfFinished(
    final Map<TableName, SnapshotSentinel> sentinels,
    final SnapshotDescription snapshot) {
  if (!snapshot.hasTable()) {
    return null;
  }

  TableName snapshotTable = TableName.valueOf(snapshot.getTable());
  SnapshotSentinel h = sentinels.get(snapshotTable);
  if (h == null) {
    return null;
  }

  if (!h.getSnapshot().getName().equals(snapshot.getName())) {
    // specified snapshot is to the one currently running
    return null;
  }

  // Remove from the "in-progress" list once completed
  if (h.isFinished()) {
    sentinels.remove(snapshotTable);
  }

  return h;
}
 

import org.apache.hadoop.hbase.protobuf.generated.HBaseProtos.SnapshotDescription; //导入方法依赖的package包/类
/**
 * Convert the passed snapshot description into a 'full' snapshot description based on default
 * parameters, if none have been supplied. This resolves any 'optional' parameters that aren't
 * supplied to their default values.
 * @param snapshot general snapshot descriptor
 * @param conf Configuration to read configured snapshot defaults if snapshot is not complete
 * @return a valid snapshot description
 * @throws IllegalArgumentException if the {@link SnapshotDescription} is not a complete
 *           {@link SnapshotDescription}.
 */
public static SnapshotDescription validate(SnapshotDescription snapshot, Configuration conf)
    throws IllegalArgumentException {
  if (!snapshot.hasTable()) {
    throw new IllegalArgumentException(
      "Descriptor doesn't apply to a table, so we can't build it.");
  }

  // set the creation time, if one hasn't been set
  long time = snapshot.getCreationTime();
  if (time == SnapshotDescriptionUtils.NO_SNAPSHOT_START_TIME_SPECIFIED) {
    time = EnvironmentEdgeManager.currentTime();
    LOG.debug("Creation time not specified, setting to:" + time + " (current time:"
        + EnvironmentEdgeManager.currentTime() + ").");
    SnapshotDescription.Builder builder = snapshot.toBuilder();
    builder.setCreationTime(time);
    snapshot = builder.build();
  }
  return snapshot;
}