pkuwm commented on a change in pull request #844: Implement setRoutingData for
MetadataStoreDirectoryService
URL: https://github.com/apache/helix/pull/844#discussion_r386716899
##########
File path:
helix-rest/src/main/java/org/apache/helix/rest/metadatastore/ZkMetadataStoreDirectory.java
##########
@@ -169,72 +186,102 @@ private void init(String namespace, String zkAddress)
throws InvalidRoutingDataE
@Override
public Map<String, String> getAllMappingUnderPath(String namespace, String
path) {
- if (!_routingDataMap.containsKey(namespace)) {
+ // Check _routingZkAddressMap first to see if namespace is included
+ if (!_routingZkAddressMap.containsKey(namespace)) {
throw new NoSuchElementException(
"Failed to get all mapping under path: Namespace " + namespace + "
is not found!");
}
+ // If namespace is included but not routing data, it means the routing
data is invalid
+ if (!_routingDataMap.containsKey(namespace)) {
+ throw new IllegalStateException("Failed to get all mapping under path:
Namespace " + namespace
+ + " contains invalid routing data!");
+ }
return _routingDataMap.get(namespace).getAllMappingUnderPath(path);
}
@Override
public String getMetadataStoreRealm(String namespace, String shardingKey) {
- if (!_routingDataMap.containsKey(namespace)) {
+ // Check _routingZkAddressMap first to see if namespace is included
+ if (!_routingZkAddressMap.containsKey(namespace)) {
throw new NoSuchElementException(
"Failed to get metadata store realm: Namespace " + namespace + " is
not found!");
}
+ // If namespace is included but not routing data, it means the routing
data is invalid
+ if (!_routingDataMap.containsKey(namespace)) {
+ throw new IllegalStateException("Failed to get metadata store realm:
Namespace " + namespace
+ + " contains invalid routing data!");
+ }
return _routingDataMap.get(namespace).getMetadataStoreRealm(shardingKey);
}
@Override
public boolean addMetadataStoreRealm(String namespace, String realm) {
- if (!_routingDataWriterMap.containsKey(namespace)) {
- // throwing NoSuchElementException instead of IllegalArgumentException
to differentiate the
- // status code in the Accessor level
- throw new NoSuchElementException(
- "Failed to add metadata store realm: Namespace " + namespace + " is
not found!");
+ synchronized (this) {
+ if (!_routingDataWriterMap.containsKey(namespace)) {
Review comment:
Before synchronized
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