gnodet-bot commented on code in PR #28243:
URL: https://github.com/apache/camel/pull/28243#discussion_r4358161411
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components/camel-jgroups-raft/src/test/java/org/apache/camel/component/jgroups/raft/cluster/JGroupsRaftClusterAbstractTest.java:
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@@ -16,39 +16,88 @@
*/
package org.apache.camel.component.jgroups.raft.cluster;
+import java.util.ArrayList;
+import java.util.List;
import java.util.concurrent.TimeUnit;
+import org.apache.camel.CamelContext;
+import org.apache.camel.component.jgroups.raft.RaftNodesState;
+import org.awaitility.core.ConditionTimeoutException;
import org.jgroups.JChannel;
import org.jgroups.raft.RaftHandle;
+import org.jgroups.raft.StateMachine;
+import org.junit.jupiter.api.AfterEach;
import static org.awaitility.Awaitility.await;
public abstract class JGroupsRaftClusterAbstractTest {
+ protected final List<CamelContext> contexts = new ArrayList<>();
+ protected final List<String> routeNames = new ArrayList<>();
+ private final List<RaftHandle> openHandles = new ArrayList<>();
+
+ /**
+ * The channels are registered in the static routing table of
SHARED_LOOPBACK, so a channel left open by a failed
+ * test would make a rerun of the test fail on joining with the same
member names ("duplicate members"), and would
+ * hide the reason of the first failure.
+ */
+ @AfterEach
+ void closeAll() {
+ for (CamelContext context : contexts) {
+ try {
+ context.stop();
+ } catch (Exception e) {
+ // best effort cleanup
+ }
+ }
+ for (RaftHandle handle : openHandles) {
+ JChannel channel = handle.channel();
+ if (channel != null) {
+ channel.close();
+ }
+ }
+ contexts.clear();
+ routeNames.clear();
+ openHandles.clear();
+ }
+
+ /**
+ * Create the Raft handle of a node and keep track of it, so that its
channel is closed at the end of the test.
+ */
+ protected RaftHandle createHandle(String id, StateMachine stateMachine)
throws Exception {
+ RaftHandle handle = new RaftHandle(new
JChannel("raftABC.xml").name(id), stateMachine).raftId(id);
+ openHandles.add(handle);
+ return handle;
+ }
+
/**
* Wait until a leader has been elected AND all given handles know who the
leader is. Only connected handles are
* checked; disconnected or closed handles are skipped. Without checking
leader() on every active handle, a follower
* node may not yet have discovered the leader, causing set() to throw
when the REDIRECT protocol has no leader
* address to forward to.
*/
protected void waitForLeader(int attempts, RaftHandle... handles) {
- await().atMost(attempts, TimeUnit.SECONDS)
- .pollInterval(500, TimeUnit.MILLISECONDS)
- .until(() -> {
- boolean hasLeader = false;
- for (RaftHandle rh : handles) {
- if (!rh.channel().isConnected()) {
- continue;
- }
- if (rh.isLeader()) {
- hasLeader = true;
- }
- if (rh.leader() == null) {
- return false;
+ try {
+ await().atMost(attempts, TimeUnit.SECONDS)
+ .pollInterval(500, TimeUnit.MILLISECONDS)
+ .until(() -> {
+ boolean hasLeader = false;
+ for (RaftHandle rh : handles) {
+ if (!rh.channel().isConnected()) {
+ continue;
+ }
+ if (rh.isLeader()) {
+ hasLeader = true;
+ }
+ if (rh.leader() == null) {
+ return false;
+ }
}
- }
- return hasLeader;
- });
+ return hasLeader;
+ });
+ } catch (ConditionTimeoutException e) {
+ throw new ConditionTimeoutException(e.getMessage() +
System.lineSeparator() + RaftNodesState.describe(handles), e);
Review Comment:
💡 **Note:** If following @davsclaus's suggestion to drop the
`RaftNodesState.` qualifier, this would not compile — `describe()` is a
`static` method of `RaftNodesState` and the current import is a plain class
import (`import org.apache.camel.component.jgroups.raft.RaftNodesState;`), not
a static one. The qualifier is correct as-is. To use bare `describe(handles)`
you would need to add:
```java
import static
org.apache.camel.component.jgroups.raft.RaftNodesState.describe;
```
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