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/*******************************************************************************
* Copyright (c) 2007, 2019 Borland Software Corporation and others.
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v2.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v20.html
*
* Contributors:
* Borland Software Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.m2m.internal.qvt.oml.evaluator;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import org.eclipse.m2m.qvt.oml.ExecutionStackTraceElement;
import org.eclipse.ocl.EvaluationHaltedException;
/**
* Represents a runtime (unchecked) exception possibly thrown during QVT code execution.
*/
public class QvtRuntimeException extends EvaluationHaltedException {
private static final long serialVersionUID = -8903219155434276631L;
private List<? extends ExecutionStackTraceElement> fQVTStackTrace;
public QvtRuntimeException() {
super((String) null);
}
public QvtRuntimeException(String message) {
super(message);
}
public QvtRuntimeException(Throwable cause) {
super(cause.getMessage(), cause);
}
public QvtRuntimeException(String message, Throwable cause) {
super(message, cause);
}
public void printQvtStackTrace(PrintWriter pw) {
synchronized (pw) {
pw.println(this);
printQvtStackTrace(pw, getQvtStackTrace());
}
}
public static void printQvtStackTrace(PrintWriter pw, List<? extends ExecutionStackTraceElement> elements) {
synchronized (pw) {
int counter = 0;
for(ExecutionStackTraceElement trace : elements) {
if(counter++ > 0) {
pw.println();
}
pw.print("\tat " + trace); //$NON-NLS-1$
}
}
}
public List<? extends ExecutionStackTraceElement> getQvtStackTrace() {
if(fQVTStackTrace != null) {
return Collections.unmodifiableList(fQVTStackTrace);
}
return Collections.emptyList();
}
public void setStackQvtTrace(List<? extends ExecutionStackTraceElement> stackTrace) {
if(fQVTStackTrace != null) {
throw new IllegalStateException("Can't reassign stack elements"); //$NON-NLS-1$
}
fQVTStackTrace = null;
if(stackTrace != null) {
fQVTStackTrace = new ArrayList<ExecutionStackTraceElement>(stackTrace);
}
}
}
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