| // |
| // ======================================================================== |
| // Copyright (c) 1995-2015 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.jsr356.samples; |
| |
| import java.nio.ByteBuffer; |
| import java.nio.charset.Charset; |
| |
| import javax.websocket.EncodeException; |
| import javax.websocket.Encoder; |
| import javax.websocket.EndpointConfig; |
| |
| import org.eclipse.jetty.util.BufferUtil; |
| |
| public class FruitBinaryEncoder implements Encoder.Binary<Fruit> |
| { |
| public static final byte FRUIT_ID_BYTE = (byte)0xAF; |
| // the number of bytes to store a string (1 int) |
| public static final int STRLEN_STORAGE = 4; |
| |
| @Override |
| public void destroy() |
| { |
| } |
| |
| @Override |
| public ByteBuffer encode(Fruit fruit) throws EncodeException |
| { |
| int len = 1; // id byte |
| len += STRLEN_STORAGE + fruit.name.length(); |
| len += STRLEN_STORAGE + fruit.color.length(); |
| |
| ByteBuffer buf = ByteBuffer.allocate(len + 64); |
| buf.flip(); |
| buf.put(FRUIT_ID_BYTE); |
| putString(buf,fruit.name); |
| putString(buf,fruit.color); |
| buf.flip(); |
| |
| return buf; |
| } |
| |
| @Override |
| public void init(EndpointConfig config) |
| { |
| } |
| |
| private void putString(ByteBuffer buf, String str) |
| { |
| buf.putInt(str.length()); |
| BufferUtil.toBuffer(str,Charset.forName("UTF-8")); |
| } |
| } |