56 lines
1.6 KiB
Java
56 lines
1.6 KiB
Java
package ex8;
|
|
|
|
import java.util.Map;
|
|
import java.util.Objects;
|
|
import java.util.concurrent.ConcurrentHashMap;
|
|
import java.util.concurrent.atomic.LongAdder;
|
|
|
|
public final class Profiler {
|
|
|
|
|
|
private record Invocation(String threadName, String invokeType) {
|
|
|
|
@Override
|
|
public boolean equals(Object o) {
|
|
if (this == o) return true;
|
|
if (o == null || getClass() != o.getClass()) return false;
|
|
Invocation that = (Invocation) o;
|
|
return Objects.equals(threadName, that.threadName) && Objects.equals(invokeType, that.invokeType);
|
|
}
|
|
|
|
@Override
|
|
public int hashCode() {
|
|
return Objects.hash(threadName, invokeType);
|
|
}
|
|
|
|
}
|
|
|
|
|
|
private Profiler() {
|
|
}
|
|
|
|
private static final Map<Invocation, LongAdder> invocationToCount = new ConcurrentHashMap<>();
|
|
|
|
// TODO change format to match assignment
|
|
static {
|
|
Runtime.getRuntime().addShutdownHook(new Thread(() -> {
|
|
for (final var entry : invocationToCount.entrySet()) {
|
|
System.out.printf("Thread: %s Type: %s Count: %d%n",
|
|
entry.getKey().threadName,
|
|
entry.getKey().invokeType,
|
|
entry.getValue().intValue()
|
|
);
|
|
}
|
|
}));
|
|
}
|
|
|
|
public static void countInvoke(final String threadName, final String invokeType) {
|
|
final Invocation invocation = new Invocation(threadName, invokeType);
|
|
invocationToCount.computeIfAbsent(invocation, k -> new LongAdder());
|
|
invocationToCount.get(invocation).increment();
|
|
|
|
}
|
|
|
|
|
|
}
|