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Add core-java-concurrency to main pom (#2507)

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* Add core-java-concurrency

* Refactor codebase
This commit is contained in:
Grzegorz Piwowarek
2017-08-27 13:39:19 +02:00
committed by GitHub
parent 0b85b0a466
commit 515e4caaca
21 changed files with 74 additions and 59 deletions
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4
core-java-concurrency/src/main/java/com/baeldung/concurrent/atomic/SafeCounterWithLock.java
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@@ -3,11 +3,11 @@ package com.baeldung.concurrent.atomic;
public class SafeCounterWithLock {
private volatile int counter;
public int getValue() {
int getValue() {
return counter;
}
public synchronized void increment() {
synchronized void increment() {
counter++;
}
}

4
core-java-concurrency/src/main/java/com/baeldung/concurrent/atomic/SafeCounterWithoutLock.java
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@@ -5,11 +5,11 @@ import java.util.concurrent.atomic.AtomicInteger;
public class SafeCounterWithoutLock {
private final AtomicInteger counter = new AtomicInteger(0);
public int getValue() {
int getValue() {
return counter.get();
}
public void increment() {
void increment() {
while(true) {
int existingValue = getValue();
int newValue = existingValue + 1;

6
core-java-concurrency/src/main/java/com/baeldung/concurrent/atomic/UnsafeCounter.java
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@@ -1,13 +1,13 @@
package com.baeldung.concurrent.atomic;
public class UnsafeCounter {
int counter;
private int counter;
public int getValue() {
int getValue() {
return counter;
}
public void increment() {
void increment() {
counter++;
}
}

6
core-java-concurrency/src/main/java/com/baeldung/threadlocal/Context.java
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@@ -4,14 +4,14 @@ package com.baeldung.threadlocal;
public class Context {
private final String userName;
public Context(String userName) {
Context(String userName) {
this.userName = userName;
}
@Override
public String toString() {
return "Context{" +
"userNameSecret='" + userName + '\'' +
'}';
"userNameSecret='" + userName + '\'' +
'}';
}
}

4
core-java-concurrency/src/main/java/com/baeldung/threadlocal/SharedMapWithUserContext.java
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@@ -5,11 +5,11 @@ import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
public class SharedMapWithUserContext implements Runnable {
public final static Map<Integer, Context> userContextPerUserId = new ConcurrentHashMap<>();
final static Map<Integer, Context> userContextPerUserId = new ConcurrentHashMap<>();
private final Integer userId;
private UserRepository userRepository = new UserRepository();
public SharedMapWithUserContext(Integer userId) {
SharedMapWithUserContext(Integer userId) {
this.userId = userId;
}

2
core-java-concurrency/src/main/java/com/baeldung/threadlocal/ThreadLocalWithUserContext.java
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@@ -10,7 +10,7 @@ public class ThreadLocalWithUserContext implements Runnable {
private final Integer userId;
private UserRepository userRepository = new UserRepository();
public ThreadLocalWithUserContext(Integer userId) {
ThreadLocalWithUserContext(Integer userId) {
this.userId = userId;
}

2
core-java-concurrency/src/main/java/com/baeldung/threadlocal/UserRepository.java
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@@ -4,7 +4,7 @@ import java.util.UUID;
public class UserRepository {
public String getUserNameForUserId(Integer userId) {
String getUserNameForUserId(Integer userId) {
return UUID.randomUUID().toString();
}
}

8
core-java-concurrency/src/main/java/com/baeldung/threadpool/CountingTask.java
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@@ -2,19 +2,21 @@ package com.baeldung.threadpool;
import java.util.concurrent.ForkJoinTask;
import java.util.concurrent.RecursiveTask;
import java.util.stream.Collectors;
public class CountingTask extends RecursiveTask<Integer> {
private final TreeNode node;
public CountingTask(TreeNode node) {
CountingTask(TreeNode node) {
this.node = node;
}
@Override
protected Integer compute() {
return node.value + node.children.stream().map(childNode -> new CountingTask(childNode).fork()).collect(Collectors.summingInt(ForkJoinTask::join));
return node.getValue() + node.getChildren().stream()
.map(childNode -> new CountingTask(childNode).fork())
.mapToInt(ForkJoinTask::join)
.sum();
}
}

17
core-java-concurrency/src/main/java/com/baeldung/threadpool/TreeNode.java
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@@ -1,18 +1,25 @@
package com.baeldung.threadpool;
import java.util.Set;
import com.google.common.collect.Sets;
import java.util.Set;
public class TreeNode {
int value;
private int value;
Set<TreeNode> children;
private Set<TreeNode> children;
public TreeNode(int value, TreeNode... children) {
TreeNode(int value, TreeNode... children) {
this.value = value;
this.children = Sets.newHashSet(children);
}
public int getValue() {
return value;
}
public Set<TreeNode> getChildren() {
return children;
}
}

6
core-java-concurrency/src/main/java/com/baeldung/transferqueue/Consumer.java
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@@ -11,10 +11,10 @@ public class Consumer implements Runnable {
private final TransferQueue<String> transferQueue;
private final String name;
private final int numberOfMessagesToConsume;
public final AtomicInteger numberOfConsumedMessages = new AtomicInteger();
final int numberOfMessagesToConsume;
final AtomicInteger numberOfConsumedMessages = new AtomicInteger();
public Consumer(TransferQueue<String> transferQueue, String name, int numberOfMessagesToConsume) {
Consumer(TransferQueue<String> transferQueue, String name, int numberOfMessagesToConsume) {
this.transferQueue = transferQueue;
this.name = name;
this.numberOfMessagesToConsume = numberOfMessagesToConsume;

6
core-java-concurrency/src/main/java/com/baeldung/transferqueue/Producer.java
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@@ -12,10 +12,10 @@ public class Producer implements Runnable {
private final TransferQueue<String> transferQueue;
private final String name;
private final Integer numberOfMessagesToProduce;
public final AtomicInteger numberOfProducedMessages = new AtomicInteger();
final Integer numberOfMessagesToProduce;
final AtomicInteger numberOfProducedMessages = new AtomicInteger();
public Producer(TransferQueue<String> transferQueue, String name, Integer numberOfMessagesToProduce) {
Producer(TransferQueue<String> transferQueue, String name, Integer numberOfMessagesToProduce) {
this.transferQueue = transferQueue;
this.name = name;
this.numberOfMessagesToProduce = numberOfMessagesToProduce;