/*
 * Copyright (c) 2013, 2020 Oracle and/or its affiliates and others.
 * All rights reserved.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v. 2.0, which is available at
 * http://www.eclipse.org/legal/epl-2.0.
 *
 * This Source Code may also be made available under the following Secondary
 * Licenses when the conditions for such availability set forth in the
 * Eclipse Public License v. 2.0 are satisfied: GNU General Public License,
 * version 2 with the GNU Classpath Exception, which is available at
 * https://www.gnu.org/software/classpath/license.html.
 *
 * SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
 */

package com.sun.ts.tests.websocket.common.impl;

import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;

import jakarta.websocket.SendHandler;
import jakarta.websocket.SendResult;

/**
 * This SendHandler implementation is used to wait maximum given number of
 * seconds for SendResult and onResult method called
 * 
 * The main goal is to pass SendHandler object to a caller code
 */
public class WaitingSendHandler implements SendHandler {
	private volatile CountDownLatch latch;

	private volatile SendResult result = null;

	public WaitingSendHandler() {
		latch = new CountDownLatch(1);
	}

	public SendResult waitForResult(long seconds) {
		try {
			latch.await(seconds, TimeUnit.SECONDS);
		} catch (InterruptedException e) {
			throw new RuntimeException("Wait has been interrupted", e);
		}
		if (latch != null && latch.getCount() != 0)
			throw new IllegalStateException("onResult has not been called on time");
		if (result == null)
			throw new IllegalStateException("SendResult is null");
		return result;
	}

	@Override
	public void onResult(SendResult result) {
		this.result = result;
		latch.countDown();
	}

}
