1 // 2 // ======================================================================== 3 // Copyright (c) 1995-2014 Mort Bay Consulting Pty. Ltd. 4 // ------------------------------------------------------------------------ 5 // All rights reserved. This program and the accompanying materials 6 // are made available under the terms of the Eclipse Public License v1.0 7 // and Apache License v2.0 which accompanies this distribution. 8 // 9 // The Eclipse Public License is available at 10 // http://www.eclipse.org/legal/epl-v10.html 11 // 12 // The Apache License v2.0 is available at 13 // http://www.opensource.org/licenses/apache2.0.php 14 // 15 // You may elect to redistribute this code under either of these licenses. 16 // ======================================================================== 17 // 18 19 package org.eclipse.jetty.websocket.common.frames; 20 21 import org.eclipse.jetty.util.StringUtil; 22 import org.eclipse.jetty.websocket.common.OpCode; 23 24 public class CloseFrame extends ControlFrame 25 { 26 public CloseFrame() 27 { 28 super(OpCode.CLOSE); 29 } 30 31 @Override 32 public Type getType() 33 { 34 return Type.CLOSE; 35 } 36 37 /** 38 * Truncate arbitrary reason into something that will fit into the CloseFrame limits. 39 * 40 * @param reason 41 * the arbitrary reason to possibly truncate. 42 * @return the possibly truncated reason string. 43 */ 44 public static String truncate(String reason) 45 { 46 return StringUtil.truncate(reason,(ControlFrame.MAX_CONTROL_PAYLOAD - 2)); 47 } 48 }