/interpreter/tags/at2dist110511/src/edu/vub/at/objects/symbiosis/XJavaException.java
Java | 121 lines | 55 code | 17 blank | 49 comment | 6 complexity | 83e2227708e818ed5125934e7b2b30b3 MD5 | raw file
1/** 2 * AmbientTalk/2 Project 3 * XJavaException.java created on 3-nov-2006 at 11:43:15 4 * (c) Programming Technology Lab, 2006 - 2007 5 * Authors: Tom Van Cutsem & Stijn Mostinckx 6 * 7 * Permission is hereby granted, free of charge, to any person 8 * obtaining a copy of this software and associated documentation 9 * files (the "Software"), to deal in the Software without 10 * restriction, including without limitation the rights to use, 11 * copy, modify, merge, publish, distribute, sublicense, and/or 12 * sell copies of the Software, and to permit persons to whom the 13 * Software is furnished to do so, subject to the following 14 * conditions: 15 * 16 * The above copyright notice and this permission notice shall be 17 * included in all copies or substantial portions of the Software. 18 * 19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 20 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES 21 * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 22 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT 23 * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, 24 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 25 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 26 * OTHER DEALINGS IN THE SOFTWARE. 27 */ 28package edu.vub.at.objects.symbiosis; 29 30import edu.vub.at.exceptions.InterpreterException; 31import edu.vub.at.objects.ATTypeTag; 32import edu.vub.at.objects.coercion.NativeTypeTags; 33 34import java.io.PrintStream; 35import java.io.PrintWriter; 36import java.lang.reflect.Member; 37 38/** 39 * An XJavaException AmbientTalk native exception wraps a Java exception. 40 * 41 * @author tvc 42 */ 43public final class XJavaException extends InterpreterException { 44 45 private static final long serialVersionUID = 328306238980169679L; 46 47 private final Throwable wrappedJavaException_; 48 private final transient Object originatingObject_; 49 private final transient Member originatingMethod_; // method or constructor in which exception originated 50 51 /** 52 * Constructor taking a Java exception to be wrapped as well as information on where the 53 * exception originated from. This constructor allows documenting which message was being 54 * on the AmbientTalk side of the symbiosis border when an exception was raised. 55 * @param jObj the object which was responsible for throwin the method 56 * @param jMeth the method which was invoked (from AmbientTalk) when the exception was being raised. 57 * @param exc the exception to be wrapped. 58 */ 59 public XJavaException(Object jObj, Member jMeth, Throwable exc) { 60 wrappedJavaException_ = exc; 61 originatingObject_ = jObj; 62 originatingMethod_ = jMeth; 63 } 64 65 /** 66 * Constructor wrapping a Java Exception to be propagated through the ambienttalk 67 * interpreter. 68 * @param exc the exception to be wrapped. 69 */ 70 public XJavaException(Throwable exc) { 71 wrappedJavaException_ = exc; 72 originatingObject_ = null; 73 originatingMethod_ = null; 74 } 75 76 // throwable interface implemented through composition with wrappedJavaException_ 77 78 public String getLocalizedMessage() { 79 return wrappedJavaException_.getLocalizedMessage(); 80 } 81 82 /** 83 * @return the Java exception wrapped by this AmbientTalk wrapper. 84 */ 85 public Throwable getWrappedJavaException() { 86 return wrappedJavaException_; 87 } 88 89 public String getMessage() { 90 if (originatingObject_ != null) { 91 return "Java exception from " + originatingObject_.toString() + "." 92 + originatingMethod_.getName() + ": " + wrappedJavaException_.getClass().getName() + wrappedJavaException_.getMessage(); 93 } else if (originatingMethod_ != null) { 94 return "Java exception from constructor " + originatingMethod_.getName() 95 + ": " + wrappedJavaException_.getClass().getName() + wrappedJavaException_.getMessage(); 96 } else { 97 return wrappedJavaException_.getMessage(); 98 } 99 } 100 101 public void printStackTrace() { 102 wrappedJavaException_.printStackTrace(); 103 } 104 105 public void printStackTrace(PrintStream arg) { 106 wrappedJavaException_.printStackTrace(arg); 107 } 108 109 public void printStackTrace(PrintWriter arg) { 110 wrappedJavaException_.printStackTrace(arg); 111 } 112 113 public String toString() { 114 return wrappedJavaException_.toString(); 115 } 116 117 public ATTypeTag getType() { 118 return NativeTypeTags._JAVAEXCEPTION_; 119 } 120 121}