i3wangyi commented on a change in pull request #348: Adding the configuration
items of the WAGED rebalancer.
URL: https://github.com/apache/helix/pull/348#discussion_r307457877
##########
File path: helix-core/src/main/java/org/apache/helix/model/InstanceConfig.java
##########
@@ -505,6 +505,46 @@ public void setMaxConcurrentTask(int maxConcurrentTask) {
_record.setIntField(InstanceConfigProperty.MAX_CONCURRENT_TASK.name(),
maxConcurrentTask);
}
+ /**
+ * Get the instance capacity information from the map fields
+ * @return data map if it exists, or empty map
+ */
+ public Map<String, Integer> getInstanceCapacityMap() {
+ Map<String, String> capacityData =
_record.getMapField(InstanceConfigProperty.INSTANCE_CAPACITY_MAP.name());
+ Map<String, Integer> capacityDataMap = new HashMap<>();
+
+ if (capacityData != null && !capacityData.isEmpty()) {
Review comment:
```
capacityDataMap.entrySet().stream().collect(Collectors.toMap(e ->
e.getKey(), e -> Integer.parseInt(e.getValue())))
```
or better with Guava's library
```
Maps.transformValues(capacityDataMap, Integer::parseInt)
```
Why is this error prone? You don't need to check if map is empty or not
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