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.jsr356; 20 21 import javax.websocket.MessageHandler; 22 23 import org.eclipse.jetty.websocket.jsr356.metadata.MessageHandlerMetadata; 24 25 /** 26 * Expose a {@link MessageHandler} instance along with its associated {@link MessageHandlerMetadata} and {@link DecoderFactory.Wrapper} 27 */ 28 public class MessageHandlerWrapper 29 { 30 private final MessageHandler handler; 31 private final MessageHandlerMetadata metadata; 32 private final DecoderFactory.Wrapper decoder; 33 34 public MessageHandlerWrapper(MessageHandler handler, MessageHandlerMetadata metadata, DecoderFactory.Wrapper decoder) 35 { 36 this.handler = handler; 37 this.metadata = metadata; 38 this.decoder = decoder; 39 } 40 41 public DecoderFactory.Wrapper getDecoder() 42 { 43 return decoder; 44 } 45 46 public MessageHandler getHandler() 47 { 48 return handler; 49 } 50 51 public MessageHandlerMetadata getMetadata() 52 { 53 return metadata; 54 } 55 56 public boolean isMessageType(Class<?> msgType) 57 { 58 return msgType.isAssignableFrom(metadata.getMessageClass()); 59 } 60 61 /** 62 * Flag for a onMessage() that wants partial messages. 63 * <p> 64 * This indicates the use of MessageHandler.{@link Partial}. 65 * 66 * @return true for use of MessageHandler.{@link Partial}, false for use of MessageHandler.{@link Whole} 67 */ 68 public boolean wantsPartialMessages() 69 { 70 return metadata.isPartialSupported(); 71 } 72 73 /** 74 * Flag for a onMessage() method that wants MessageHandler.{@link Whole} with a Decoder that is based on {@link TextStream} or {@link BinaryStream} 75 * 76 * @return true for Streaming based Decoder, false for normal decoder for whole messages. 77 */ 78 public boolean wantsStreams() 79 { 80 return decoder.getMetadata().isStreamed(); 81 } 82 }