/**
* Given the DiskUsage for a node and the size of the shard, return the percentage of free disk if
* the shard were to be allocated to the node.
*
* @param usage A DiskUsage for the node to have space computed for
* @param shardSize Size in bytes of the shard
* @return Percentage of free space after the shard is assigned to the node
*/
public double freeDiskPercentageAfterShardAssigned(DiskUsage usage, Long shardSize) {
shardSize = (shardSize == null) ? 0 : shardSize;
DiskUsage newUsage =
new DiskUsage(
usage.getNodeId(),
usage.getNodeName(),
usage.getPath(),
usage.getTotalBytes(),
usage.getFreeBytes() - shardSize);
return newUsage.getFreeDiskAsPercentage();
}
