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.annotations; 20 21 import org.eclipse.jetty.websocket.common.events.annotated.InvalidSignatureException; 22 import org.eclipse.jetty.websocket.jsr356.annotations.Param.Role; 23 24 /** 25 * Param handling for @{@link OnError} parameters. 26 */ 27 public class JsrParamIdOnError extends JsrParamIdBase implements IJsrParamId 28 { 29 public static final IJsrParamId INSTANCE = new JsrParamIdOnError(); 30 31 @Override 32 public boolean process(Param param, JsrCallable callable) throws InvalidSignatureException 33 { 34 if (super.process(param,callable)) 35 { 36 // Found common roles 37 return true; 38 } 39 40 if (param.type.isAssignableFrom(Throwable.class)) 41 { 42 param.bind(Role.ERROR_CAUSE); 43 return true; 44 } 45 return false; 46 } 47 }