deniskuzZ commented on a change in pull request #3027:
URL: https://github.com/apache/hive/pull/3027#discussion_r809249306
##########
File path:
ql/src/java/org/apache/hadoop/hive/ql/txn/compactor/CompactorUtil.java
##########
@@ -62,31 +75,29 @@ public static ExecutorService
createExecutorWithThreadFactory(int parallelism, S
* @param conf global hive conf
* @param ci compaction info object
* @param table instance of table
- * @return name of the queue, can be null
+ * @return name of the queue
*/
static String getCompactorJobQueueName(HiveConf conf, CompactionInfo ci,
Table table) {
// Get queue name from the ci. This is passed through
// ALTER TABLE table_name COMPACT 'major' WITH OVERWRITE
TBLPROPERTIES('compactor.hive.compactor.job.queue'='some_queue')
+ List<Function<String, String>> propertyGetters = new ArrayList<>(2);
if (ci.properties != null) {
StringableMap ciProperties = new StringableMap(ci.properties);
- String queueName = ciProperties.get(COMPACTOR_PREFIX +
MAPRED_QUEUE_NAME);
- if (queueName != null && queueName.length() > 0) {
- return queueName;
- }
+ propertyGetters.add(ciProperties::get);
}
-
- // Get queue name from the table properties
- String queueName = table.getParameters().get(COMPACTOR_PREFIX +
MAPRED_QUEUE_NAME);
- if (queueName != null && queueName.length() > 0) {
- return queueName;
+ if (table.getParameters() != null) {
+ propertyGetters.add(table.getParameters()::get);
}
- // Get queue name from global hive conf
- queueName = conf.get(HiveConf.ConfVars.COMPACTOR_JOB_QUEUE.varname);
- if (queueName != null && queueName.length() > 0) {
- return queueName;
+ for (Function<String, String> getter : propertyGetters) {
Review comment:
minor, however, it looks like a mix of imperative and declarative
styles, I would prefer streaming API here:
````
return propertyGetters.stream()
.flatMap(getter -> QUEUE_PROPERTIES.stream()
.filter(p -> !StringUtils.isEmpty(getter.apply(p))))
.findFirst()
.orElse(conf.getVar(HiveConf.ConfVars.COMPACTOR_JOB_QUEUE));
````
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