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package tools.refinery.language.web;
import org.eclipse.jetty.server.Server;
import org.eclipse.jetty.server.ServerConnector;
import org.eclipse.jetty.util.thread.QueuedThreadPool;
import org.eclipse.jetty.util.thread.ThreadPool;
import java.net.InetSocketAddress;
import java.time.Duration;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
public final class VirtualThreadUtils {
private VirtualThreadUtils() {
throw new IllegalStateException("This is a static utility class and should not be instantiated directly");
}
public static ExecutorService newNamedVirtualThreadsExecutor(String name) {
// Based on
// https://github.com/eclipse/jetty.project/blob/83154b4ffe4767ef44981598d6c26e6a5d32e57c/jetty-server/src/main/config/etc/jetty-threadpool-virtual-preview.xml
return Executors.newThreadPerTaskExecutor(Thread.ofVirtual()
.allowSetThreadLocals(true)
.inheritInheritableThreadLocals(false)
.name(name + "-virtual-", 0)
.factory());
}
public static ThreadPool newThreadPoolWithVirtualThreadsExecutor(String name) {
// Based on
// https://github.com/eclipse/jetty.project/blob/83154b4ffe4767ef44981598d6c26e6a5d32e57c/jetty-server/src/main/config/etc/jetty-threadpool-virtual-preview.xml
int timeout = (int) Duration.ofMinutes(1).toMillis();
var threadPool = new QueuedThreadPool(200, 10, timeout, -1, null, null);
threadPool.setName(name);
threadPool.setDetailedDump(false);
threadPool.setVirtualThreadsExecutor(newNamedVirtualThreadsExecutor(name));
return threadPool;
}
public static Server newServerWithVirtualThreadsThreadPool(String name, InetSocketAddress listenAddress) {
var server = new Server(newThreadPoolWithVirtualThreadsExecutor(name));
var connector = new ServerConnector(server);
try {
connector.setHost(listenAddress.getHostName());
connector.setPort(listenAddress.getPort());
server.addConnector(connector);
} catch (Exception e) {
connector.close();
throw e;
}
return server;
}
}
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