/**
* Returns a boolean indicating if the given thrift caching operation would perform an update on
* an already existing cache directive.
*/
public static boolean isUpdateOp(THdfsCachingOp op, Map<String, String> params)
throws ImpalaRuntimeException {
Long directiveId = Long.parseLong(params.get(CACHE_DIR_ID_PROP_NAME));
CacheDirectiveEntry entry = getDirective(directiveId);
Preconditions.checkNotNull(entry);
// Verify cache pool
if (!op.getCache_pool_name().equals(entry.getInfo().getPool())) {
return false;
}
// Check cache replication factor
if ((op.isSetReplication() && op.getReplication() != entry.getInfo().getReplication())
|| (!op.isSetReplication()
&& entry.getInfo().getReplication()
!= JniCatalogConstants.HDFS_DEFAULT_CACHE_REPLICATION_FACTOR)) {
return true;
}
return false;
}
/** Helper method for frequent lookup of replication factor in the thrift caching structure. */
public static short getReplicationOrDefault(THdfsCachingOp op) {
return op.isSetReplication()
? op.getReplication()
: JniCatalogConstants.HDFS_DEFAULT_CACHE_REPLICATION_FACTOR;
}
