| // |
| // ======================================================================== |
| // Copyright (c) 1995-2016 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.message; |
| |
| import java.nio.ByteBuffer; |
| |
| public class MessageDebug |
| { |
| public static String toDetailHint(byte[] data, int offset, int len) |
| { |
| StringBuilder buf = new StringBuilder(); |
| ByteBuffer buffer = ByteBuffer.wrap(data,offset,len); |
| |
| buf.append("byte[").append(data.length); |
| buf.append("](o=").append(offset); |
| buf.append(",len=").append(len); |
| |
| buf.append(")<<<"); |
| for (int i = buffer.position(); i < buffer.limit(); i++) |
| { |
| char c = (char)buffer.get(i); |
| if ((c >= ' ') && (c <= 127)) |
| { |
| buf.append(c); |
| } |
| else if ((c == '\r') || (c == '\n')) |
| { |
| buf.append('|'); |
| } |
| else |
| { |
| buf.append('\ufffd'); |
| } |
| if ((i == (buffer.position() + 16)) && (buffer.limit() > (buffer.position() + 32))) |
| { |
| buf.append("..."); |
| i = buffer.limit() - 16; |
| } |
| } |
| buf.append(">>>"); |
| |
| return buf.toString(); |
| } |
| } |