/*
* Copyright (C) 2004 Joe Walnes.
* Copyright (C) 2006, 2007 XStream Committers.
* All rights reserved.
*
* The software in this package is published under the terms of the BSD
* style license a copy of which has been included with this distribution in
* the LICENSE.txt file.
*
* Created on 30. May 2004 by Joe Walnes
*/
package com.thoughtworks.xstream.converters.extended;
import com.thoughtworks.xstream.converters.ConversionException;
import java.lang.reflect.Field;
/**
* Factory for creating StackTraceElements.
* Factory for creating StackTraceElements.
*
* @author <a href="mailto:boxley@thoughtworks.com">B. K. Oxley (binkley)</a>
* @author Joe Walnes
*/
public class StackTraceElementFactory {
public StackTraceElement nativeMethodElement(String declaringClass, String methodName) {
return create(declaringClass, methodName, "Native Method", -2);
}
public StackTraceElement unknownSourceElement(String declaringClass, String methodName) {
return create(declaringClass, methodName, "Unknown Source", -1);
}
public StackTraceElement element(String declaringClass, String methodName, String fileName) {
return create(declaringClass, methodName, fileName, -1);
}
public StackTraceElement element(String declaringClass, String methodName, String fileName, int lineNumber) {
return create(declaringClass, methodName, fileName, lineNumber);
}
private StackTraceElement create(String declaringClass, String methodName, String fileName, int lineNumber) {
StackTraceElement result = new Throwable().getStackTrace()[0];
setField(result, "declaringClass", declaringClass);
setField(result, "methodName", methodName);
setField(result, "fileName", fileName);
setField(result, "lineNumber", new Integer(lineNumber));
return result;
}
private void setField(StackTraceElement element, String fieldName, Object value) {
try {
final Field field = StackTraceElement.class.getDeclaredField(fieldName);
field.setAccessible(true);
field.set(element, value);
} catch (Exception e) {
throw new ConversionException(e);
}
}
}