You are viewing a plain text version of this content. The canonical link for it is here.
Posted to commits@pulsar.apache.org by zh...@apache.org on 2019/04/01 07:15:00 UTC
[pulsar] branch master updated: Bugfix an unload non-existent topic
(#3946)
This is an automated email from the ASF dual-hosted git repository.
zhaijia pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/pulsar.git
The following commit(s) were added to refs/heads/master by this push:
new e36ae70 Bugfix an unload non-existent topic (#3946)
e36ae70 is described below
commit e36ae702ea051913a723a7206e0bad7ae7e1949e
Author: Ezequiel Lovelle <ez...@gmail.com>
AuthorDate: Mon Apr 1 04:14:55 2019 -0300
Bugfix an unload non-existent topic (#3946)
*Motivation*
Fixes #3935
When an unload operation is being made to an non-existent topic a null pointer
exception is thrown due to bad handling exception on general catch clause.
*Modifications*
- Refactor getTopicReference() for a simplified version.
- Simplify exception thrown when partitioned topics was not found.
- Fix NPE when unload operation is being made with a non-existent topic.
- Add test in order to assert unload on normal situation.
- Add test to assert npe from unload with non existent topic.
---
.../broker/admin/impl/PersistentTopicsBase.java | 41 +++++++++++-----------
.../pulsar/broker/admin/PersistentTopicsTest.java | 18 ++++++++++
2 files changed, 39 insertions(+), 20 deletions(-)
diff --git a/pulsar-broker/src/main/java/org/apache/pulsar/broker/admin/impl/PersistentTopicsBase.java b/pulsar-broker/src/main/java/org/apache/pulsar/broker/admin/impl/PersistentTopicsBase.java
index ce32890..c7af055 100644
--- a/pulsar-broker/src/main/java/org/apache/pulsar/broker/admin/impl/PersistentTopicsBase.java
+++ b/pulsar-broker/src/main/java/org/apache/pulsar/broker/admin/impl/PersistentTopicsBase.java
@@ -1309,24 +1309,25 @@ public class PersistentTopicsBase extends AdminResource {
*/
private Topic getTopicReference(TopicName topicName) {
return pulsar().getBrokerService().getTopicIfExists(topicName.toString()).join()
- .orElseThrow(() -> {
- if (topicName.toString().contains(TopicName.PARTITIONED_TOPIC_SUFFIX)) {
- TopicName partitionTopicName = TopicName.get(topicName.getPartitionedTopicName());
- PartitionedTopicMetadata partitionedTopicMetadata = getPartitionedTopicMetadata(partitionTopicName, false);
- if (partitionedTopicMetadata == null || partitionedTopicMetadata.partitions == 0) {
- final String errSrc;
- if (partitionedTopicMetadata != null) {
- errSrc = " has zero partitions";
- } else {
- errSrc = " has no metadata";
- }
- return new RestException(Status.NOT_FOUND, "Partitioned Topic not found: " + topicName.toString() + errSrc);
- } else if (!internalGetList().contains(topicName.toString())) {
- return new RestException(Status.NOT_FOUND, "Topic partitions were not yet created");
- }
- }
- return new RestException(Status.NOT_FOUND, "Topic not found");
- });
+ .orElseThrow(() -> topicNotFoundReason(topicName));
+ }
+
+ private RestException topicNotFoundReason(TopicName topicName) {
+ if (!topicName.isPartitioned()) {
+ return new RestException(Status.NOT_FOUND, "Topic not found");
+ }
+
+ PartitionedTopicMetadata partitionedTopicMetadata = getPartitionedTopicMetadata(
+ TopicName.get(topicName.getPartitionedTopicName()), false);
+ if (partitionedTopicMetadata == null || partitionedTopicMetadata.partitions == 0) {
+ final String topicErrorType = partitionedTopicMetadata == null ?
+ "has no metadata" : "has zero partitions";
+ return new RestException(Status.NOT_FOUND, String.format(
+ "Partitioned Topic not found: %s %s", topicName.toString(), topicErrorType));
+ } else if (!internalGetList().contains(topicName.toString())) {
+ return new RestException(Status.NOT_FOUND, "Topic partitions were not yet created");
+ }
+ return new RestException(Status.NOT_FOUND, "Partitioned Topic not found");
}
private Topic getOrCreateTopic(TopicName topicName) {
@@ -1463,8 +1464,8 @@ public class PersistentTopicsBase extends AdminResource {
log.error("[{}] topic {} not found", clientAppId(), topicName);
throw new RestException(Status.NOT_FOUND, "Topic does not exist");
} catch (Exception e) {
- log.error("[{}] Failed to unload topic {}, {}", clientAppId(), topicName, e.getCause().getMessage(), e);
- throw new RestException(e.getCause());
+ log.error("[{}] Failed to unload topic {}, {}", clientAppId(), topicName, e.getMessage(), e);
+ throw new RestException(e);
}
}
diff --git a/pulsar-broker/src/test/java/org/apache/pulsar/broker/admin/PersistentTopicsTest.java b/pulsar-broker/src/test/java/org/apache/pulsar/broker/admin/PersistentTopicsTest.java
index 8311ec8..7900786 100644
--- a/pulsar-broker/src/test/java/org/apache/pulsar/broker/admin/PersistentTopicsTest.java
+++ b/pulsar-broker/src/test/java/org/apache/pulsar/broker/admin/PersistentTopicsTest.java
@@ -35,6 +35,7 @@ import org.testng.annotations.BeforeClass;
import org.testng.annotations.BeforeMethod;
import org.testng.annotations.Test;
+import javax.ws.rs.core.Response;
import javax.ws.rs.core.UriInfo;
import java.lang.reflect.Field;
import java.util.List;
@@ -140,4 +141,21 @@ public class PersistentTopicsTest extends MockedPulsarServiceBaseTest {
testTenant, testNamespace, topicName, true);
Assert.assertEquals(pMetadata.partitions, 0);
}
+
+ @Test
+ public void testUnloadTopic() {
+ final String topicName = "standard-topic-to-be-unload";
+ persistentTopics.createNonPartitionedTopic(testTenant, testNamespace, topicName, true);
+ persistentTopics.unloadTopic(testTenant, testNamespace, topicName, true);
+ }
+
+ @Test(expectedExceptions = RestException.class)
+ public void testUnloadTopicShallThrowNotFoundWhenTopicNotExist() {
+ try {
+ persistentTopics.unloadTopic(testTenant, testNamespace,"non-existent-topic", true);
+ } catch (RestException e) {
+ Assert.assertEquals(e.getResponse().getStatus(), Response.Status.NOT_FOUND.getStatusCode());
+ throw e;
+ }
+ }
}