Preconditions.checkArgument(isValidLong(entry.getValue()), "Invalid entry value for '%s'.", entry); policy = new SegmentRollingPolicy(Long.parseLong(entry.getValue())); } else { Preconditions.checkArgument(isValidLong(entry.getKey()), "Invalid key value for '%s'.", entry); long offset = om.adjustOffset(Long.parseLong(entry.getKey())); SegmentChunk s = new SegmentChunk(entry.getValue(), offset);