@Override
  public String toString() {
    StringBuilder sb = new StringBuilder();
    sb.append("[maxSize: ").append(maxSize).append("]");
    sb.append("[endTime: ").append(endTime).append("]");
    return sb.toString();
  }
Initialize a condition object that allows for entries up to a size of maxSize and those that are from segments
last modified at or before endTime.

@param maxSize the maximum size of entries allowed by this condition object.
@param endTime the latest a segment's last modified time can be in order for entries to be fetched from it.
ambry-store/src/main/java/com/github/ambry/store/FindEntriesCondition.java