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[fix][test] AdvertisedListenersTest.setup (#17869)
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69 changes: 69 additions & 0 deletions
69
pulsar-common/src/main/java/org/apache/pulsar/common/util/PortManager.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,69 @@ | ||
| /** | ||
| * Licensed to the Apache Software Foundation (ASF) under one | ||
| * or more contributor license agreements. See the NOTICE file | ||
| * distributed with this work for additional information | ||
| * regarding copyright ownership. The ASF licenses this file | ||
| * to you under the Apache License, Version 2.0 (the | ||
| * "License"); you may not use this file except in compliance | ||
| * with the License. You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, | ||
| * software distributed under the License is distributed on an | ||
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY | ||
| * KIND, either express or implied. See the License for the | ||
| * specific language governing permissions and limitations | ||
| * under the License. | ||
| */ | ||
| package org.apache.pulsar.common.util; | ||
|
|
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| import java.net.ServerSocket; | ||
| import java.util.HashSet; | ||
| import java.util.Set; | ||
|
|
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| public class PortManager { | ||
|
|
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| private static final Set<Integer> PORTS = new HashSet<>(); | ||
|
|
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| /** | ||
| * Return a locked available port. | ||
| * | ||
| * @return locked available port. | ||
| */ | ||
| public static synchronized int nextLockedFreePort() { | ||
| int exceptionCount = 0; | ||
| while (true) { | ||
| try (ServerSocket ss = new ServerSocket(0)) { | ||
| int port = ss.getLocalPort(); | ||
| if (!checkPortIfLocked(port)) { | ||
| PORTS.add(port); | ||
| return port; | ||
| } | ||
| } catch (Exception e) { | ||
| exceptionCount++; | ||
| if (exceptionCount > 100) { | ||
| throw new RuntimeException("Unable to allocate socket port", e); | ||
| } | ||
| } | ||
| } | ||
| } | ||
|
|
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| /** | ||
| * Returns whether the port was released successfully. | ||
| * | ||
| * @return whether the release is successful. | ||
| */ | ||
| public static synchronized boolean releaseLockedPort(int lockedPort) { | ||
| return PORTS.remove(lockedPort); | ||
| } | ||
|
|
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| /** | ||
| * Check port if locked. | ||
| * | ||
| * @return whether the port is locked. | ||
| */ | ||
| public static synchronized boolean checkPortIfLocked(int lockedPort) { | ||
| return PORTS.contains(lockedPort); | ||
| } | ||
| } |
37 changes: 37 additions & 0 deletions
37
pulsar-common/src/test/java/org/apache/pulsar/common/util/PortManagerTest.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,37 @@ | ||
| /** | ||
| * Licensed to the Apache Software Foundation (ASF) under one | ||
| * or more contributor license agreements. See the NOTICE file | ||
| * distributed with this work for additional information | ||
| * regarding copyright ownership. The ASF licenses this file | ||
| * to you under the Apache License, Version 2.0 (the | ||
| * "License"); you may not use this file except in compliance | ||
| * with the License. You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, | ||
| * software distributed under the License is distributed on an | ||
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY | ||
| * KIND, either express or implied. See the License for the | ||
| * specific language governing permissions and limitations | ||
| * under the License. | ||
| */ | ||
| package org.apache.pulsar.common.util; | ||
|
|
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| import org.testng.annotations.Test; | ||
|
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| import static org.apache.pulsar.common.util.PortManager.checkPortIfLocked; | ||
| import static org.apache.pulsar.common.util.PortManager.nextLockedFreePort; | ||
| import static org.apache.pulsar.common.util.PortManager.releaseLockedPort; | ||
| import static org.testng.Assert.assertFalse; | ||
| import static org.testng.Assert.assertTrue; | ||
|
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| public class PortManagerTest { | ||
| @Test | ||
| public void testCheckPortIfLockedAndRemove() { | ||
| int port = nextLockedFreePort(); | ||
| assertTrue(checkPortIfLocked(port)); | ||
| assertTrue(releaseLockedPort(port)); | ||
| assertFalse(checkPortIfLocked(port)); | ||
| } | ||
| } |
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