1 // 2 // ======================================================================== 3 // Copyright (c) 1995-2016 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 javax.websocket.OnError; 22 23 import org.eclipse.jetty.websocket.common.events.annotated.InvalidSignatureException; 24 import org.eclipse.jetty.websocket.jsr356.annotations.Param.Role; 25 26 /** 27 * Param handling for @{@link OnError} parameters. 28 */ 29 public class JsrParamIdOnError extends JsrParamIdBase implements IJsrParamId 30 { 31 public static final IJsrParamId INSTANCE = new JsrParamIdOnError(); 32 33 @Override 34 public boolean process(Param param, JsrCallable callable) throws InvalidSignatureException 35 { 36 if (super.process(param,callable)) 37 { 38 // Found common roles 39 return true; 40 } 41 42 if (param.type.isAssignableFrom(Throwable.class)) 43 { 44 param.bind(Role.ERROR_CAUSE); 45 return true; 46 } 47 return false; 48 } 49 }