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/**
 * Copyright (c) 2000-present Liferay, Inc. All rights reserved.
 *
 * This library is free software; you can redistribute it and/or modify it under
 * the terms of the GNU Lesser General Public License as published by the Free
 * Software Foundation; either version 2.1 of the License, or (at your option)
 * any later version.
 *
 * This library is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
 * details.
 */

package com.liferay.portal.kernel.nio.intraband;

import java.io.IOException;

import java.nio.channels.GatheringByteChannel;
import java.nio.channels.ScatteringByteChannel;

import java.util.EnumSet;

/**
 * @author Shuyang Zhou
 */
public class DatagramHelper {

	public static Datagram createACKResponseDatagram(long sequenceId) {
		return Datagram.createACKResponseDatagram(sequenceId);
	}

	public static Datagram createReceiveDatagram() {
		return Datagram.createReceiveDatagram();
	}

	public static Object getAttachment(Datagram datagram) {
		return datagram.attachment;
	}

	public static CompletionHandler getCompletionHandler(
		Datagram datagram) {

		return datagram.completionHandler;
	}

	public static EnumSet getCompletionTypes(
		Datagram datagram) {

		return datagram.completionTypes;
	}

	public static long getSequenceId(Datagram datagram) {
		return datagram.getSequenceId();
	}

	public static boolean isAckResponse(Datagram datagram) {
		return datagram.isAckResponse();
	}

	public static boolean readFrom(
			Datagram datagram, ScatteringByteChannel scatteringByteChannel)
		throws IOException {

		return datagram.readFrom(scatteringByteChannel);
	}

	public static void setAckRequest(Datagram datagram) {
		datagram.setAckRequest(true);
	}

	public static void setAttachment(Datagram datagram, Object attachment) {
		datagram.attachment = attachment;
	}

	public static void setCompletionHandler(
		Datagram datagram, CompletionHandler completionHandler) {

		datagram.completionHandler = completionHandler;
	}

	public static void setCompletionTypes(
		Datagram datagram,
		EnumSet completionTypes) {

		datagram.completionTypes = completionTypes;
	}

	public static void setSequenceId(Datagram datagram, long sequenceId) {
		datagram.setSequenceId(sequenceId);
	}

	public static void setTimeout(Datagram datagram, long timeout) {
		datagram.timeout = timeout;
	}

	public static void writeTo(
			Datagram datagram, GatheringByteChannel gatheringByteChannel)
		throws IOException {

		while (!datagram.writeTo(gatheringByteChannel));
	}

} 















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