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Make LockRegistry#obtain Java 8 based

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This commit harmonizes `LockRegistry#obtain` logic in Zookeeper and JDBC
implementations with Redis implementation
by using Java 8 `ConcurrentMap#computeIfAbsent`

* Remove `synchronized (this.locks)` from the `expireUnusedOlderThan`
implementations because `iterator()` is thread-safe from `ConcurrentHashMap`
* Fix deprecation in the `IntegrationGraphControllerRegistrar`
* Revert Spring Security version to `4.2.2`, since `5.0 B-S` is broken
This commit is contained in:
Vedran Pavic
2017-04-21 21:16:41 +02:00
committed by Artem Bilan
parent 7f2c1d6ecd
commit 1dc3726e7d
6 changed files with 59 additions and 79 deletions
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34
spring-integration-jdbc/src/main/java/org/springframework/integration/jdbc/lock/JdbcLockRegistry.java
View File

@@ -1,5 +1,5 @@
/*
* Copyright 2016 the original author or authors.
* Copyright 2016-2017 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@@ -16,10 +16,10 @@
package org.springframework.integration.jdbc.lock;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import java.util.Map.Entry;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.locks.Condition;
import java.util.concurrent.locks.Lock;
@@ -50,7 +50,7 @@ import org.springframework.util.Assert;
*/
public class JdbcLockRegistry implements ExpirableLockRegistry {
private final Map<String, JdbcLock> locks = new HashMap<String, JdbcLock>();
private final Map<String, JdbcLock> locks = new ConcurrentHashMap<>();
private final LockRepository client;
@@ -62,17 +62,7 @@ public class JdbcLockRegistry implements ExpirableLockRegistry {
public Lock obtain(Object lockKey) {
Assert.isInstanceOf(String.class, lockKey);
String path = pathFor((String) lockKey);
JdbcLock lock = this.locks.get(path);
if (lock == null) {
synchronized (this.locks) {
lock = this.locks.get(path);
if (lock == null) {
lock = new JdbcLock(this.client, path);
this.locks.put(path, lock);
}
}
}
return lock;
return this.locks.computeIfAbsent(path, p -> new JdbcLock(this.client, p));
}
private String pathFor(String input) {
@@ -81,15 +71,13 @@ public class JdbcLockRegistry implements ExpirableLockRegistry {
@Override
public void expireUnusedOlderThan(long age) {
synchronized (this.locks) {
Iterator<Entry<String, JdbcLock>> iterator = this.locks.entrySet().iterator();
long now = System.currentTimeMillis();
while (iterator.hasNext()) {
Entry<String, JdbcLock> entry = iterator.next();
JdbcLock lock = entry.getValue();
if (now - lock.getLastUsed() > age && !lock.isAcquiredInThisProcess()) {
iterator.remove();
}
Iterator<Entry<String, JdbcLock>> iterator = this.locks.entrySet().iterator();
long now = System.currentTimeMillis();
while (iterator.hasNext()) {
Entry<String, JdbcLock> entry = iterator.next();
JdbcLock lock = entry.getValue();
if (now - lock.getLastUsed() > age && !lock.isAcquiredInThisProcess()) {
iterator.remove();
}
}
}