| // |
| // ======================================================================== |
| // 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); |
| } |
| } |