53 lines
1.2 KiB
Java
53 lines
1.2 KiB
Java
|
package com.baeldung.awaitility;
|
||
|
|
|
||
|
|
import java.util.concurrent.Executor;
|
||
|
|
import java.util.concurrent.Executors;
|
||
|
|
import java.util.concurrent.atomic.AtomicLong;
|
||
|
|
|
||
|
|
public class AsyncService {
|
||
|
|
private final int DELAY = 1000;
|
||
|
|
private final int INIT_DELAY = 2000;
|
||
|
|
|
||
|
|
private final AtomicLong value = new AtomicLong(0);
|
||
|
|
private final Executor executor = Executors.newFixedThreadPool(4);
|
||
|
|
private volatile boolean initialized = false;
|
||
|
|
|
||
|
|
void initialize() {
|
||
|
|
executor.execute(() -> {
|
||
|
|
sleep(INIT_DELAY);
|
||
|
|
initialized = true;
|
||
|
|
});
|
||
|
|
}
|
||
|
|
|
||
|
|
boolean isInitialized() {
|
||
|
|
return initialized;
|
||
|
|
}
|
||
|
|
|
||
|
|
void addValue(long val) {
|
||
|
|
throwIfNotInitialized();
|
||
|
|
executor.execute(() -> {
|
||
|
|
sleep(DELAY);
|
||
|
|
value.addAndGet(val);
|
||
|
|
});
|
||
|
|
}
|
||
|
|
|
||
|
|
public long getValue() {
|
||
|
|
throwIfNotInitialized();
|
||
|
|
return value.longValue();
|
||
|
|
}
|
||
|
|
|
||
|
|
private void sleep(int delay) {
|
||
|
|
try {
|
||
|
|
Thread.sleep(delay);
|
||
|
|
} catch (InterruptedException e) {
|
||
|
|
e.printStackTrace();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
private void throwIfNotInitialized() {
|
||
|
|
if (!initialized) {
|
||
|
|
throw new IllegalStateException("Service is not initialized");
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|