// // ======================================================================== // Copyright (c) 1995-2017 Mort Bay Consulting Pty. Ltd. // ------------------------------------------------------------------------ // All rights reserved. This program and the accompanying materials // are made available under the terms of the Eclipse Public License v1.0 // and Apache License v2.0 which accompanies this distribution. // // The Eclipse Public License is available at // http://www.eclipse.org/legal/epl-v10.html // // The Apache License v2.0 is available at // http://www.opensource.org/licenses/apache2.0.php // // You may elect to redistribute this code under either of these licenses. // ======================================================================== // package org.eclipse.jetty.websocket.common.frames; import org.eclipse.jetty.websocket.api.extensions.Frame; import org.eclipse.jetty.websocket.common.OpCode; import org.eclipse.jetty.websocket.common.WebSocketFrame; /** * A Data Frame */ public class DataFrame extends WebSocketFrame { protected DataFrame(byte opcode) { super(opcode); } /** * Construct new DataFrame based on headers of provided frame. * <p> * Useful for when working in extensions and a new frame needs to be created. * @param basedOn the frame this one is based on */ public DataFrame(Frame basedOn) { this(basedOn,false); } /** * Construct new DataFrame based on headers of provided frame, overriding for continuations if needed. * <p> * Useful for when working in extensions and a new frame needs to be created. * @param basedOn the frame this one is based on * @param continuation true if this is a continuation frame */ public DataFrame(Frame basedOn, boolean continuation) { super(basedOn.getOpCode()); copyHeaders(basedOn); if (continuation) { setOpCode(OpCode.CONTINUATION); } } @Override public void assertValid() { /* no extra validation for data frames (yet) here */ } @Override public boolean isControlFrame() { return false; } @Override public boolean isDataFrame() { return true; } /** * Set the data frame to continuation mode */ public void setIsContinuation() { setOpCode(OpCode.CONTINUATION); } }