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// * Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements. See the NOTICE file * | |
// * distributed with this work for additional information regarding copyright ownership. The ASF licenses this file * | |
// * to you under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance * | |
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// * * | |
// * http://www.apache.org/licenses/LICENSE-2.0 * | |
// * * | |
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// *************************************************************************************************************************** | |
package org.apache.juneau.parser; | |
import static org.apache.juneau.internal.StringUtils.*; | |
import java.lang.reflect.*; | |
import java.text.*; | |
import java.util.*; | |
import org.apache.juneau.*; | |
import org.apache.juneau.internal.*; | |
import org.apache.juneau.serializer.*; | |
/** | |
* Exception that indicates invalid syntax encountered during parsing. | |
*/ | |
public class ParseException extends FormattedException { | |
private static final long serialVersionUID = 1L; | |
/** | |
* Creator method. | |
* | |
* <p> | |
* If the throwable is already a {@link ParseException}, we simply return that exception as-is. | |
* If the throwable is an {@link InvocationTargetException}, we unwrap the thrown exception. | |
* Otherwise we create a new {@link ParseException}. | |
* | |
* @param e The exception being wrapped or unwrapped. | |
* @return A new {@link SerializeException}. | |
*/ | |
public static ParseException create(Throwable e) { | |
if (e instanceof InvocationTargetException) | |
e = ((InvocationTargetException)e).getCause(); | |
if (e instanceof ParseException) | |
return (ParseException)e; | |
return new ParseException(e); | |
} | |
/** | |
* Constructor. | |
* | |
* @param message The {@link MessageFormat}-style message. | |
* @param args Optional {@link MessageFormat}-style arguments. | |
*/ | |
public ParseException(String message, Object...args) { | |
super(message, args); | |
} | |
/** | |
* Constructor. | |
* | |
* @param causedBy The cause of this exception. | |
* @param message The {@link MessageFormat}-style message. | |
* @param args Optional {@link MessageFormat}-style arguments. | |
*/ | |
public ParseException(Throwable causedBy, String message, Object...args) { | |
super(causedBy, message, args); | |
} | |
/** | |
* Constructor. | |
* | |
* @param causedBy The cause of this exception. | |
*/ | |
public ParseException(Throwable causedBy) { | |
super(causedBy); | |
} | |
/** | |
* Constructor. | |
* | |
* @param session The parser session. | |
* @param message The exception message containing {@link MessageFormat}-style arguments. | |
* @param args Optional {@link MessageFormat}-style arguments. | |
*/ | |
public ParseException(ParserSession session, String message, Object...args) { | |
super(getMessage(session, message, args)); | |
} | |
/** | |
* Constructor. | |
* | |
* @param session The parser session. | |
* @param causedBy The cause of this exception. | |
* @param message The exception message containing {@link MessageFormat}-style arguments. | |
* @param args Optional {@link MessageFormat}-style arguments. | |
*/ | |
public ParseException(ParserSession session, Throwable causedBy, String message, Object...args) { | |
super(causedBy, getMessage(session, message, args)); | |
} | |
/** | |
* Constructor. | |
* | |
* @param session The parser session. | |
* @param causedBy The inner exception. | |
*/ | |
public ParseException(ParserSession session, Exception causedBy) { | |
super(causedBy, getMessage(session, causedBy.getMessage())); | |
} | |
private static String getMessage(ParserSession session, String msg, Object... args) { | |
if (args.length != 0) | |
msg = format(msg, args); | |
if (session != null) { | |
Position p = session.getPosition(); | |
msg += "\n\tAt: " + p; | |
ObjectMap lastLocation = session.getLastLocation(); | |
if (lastLocation != null) { | |
msg += "\n\tWhile parsing into: "; | |
for (Map.Entry<String,Object> e : lastLocation.entrySet()) | |
msg += "\n\t\t" + e.getKey() + ": " + e.getValue(); | |
} | |
String lines = session.getInputAsString(); | |
if (lines == null) | |
msg += "\n\tUse BEAN_debug setting to display content."; | |
else { | |
int numLines = session.getDebugOutputLines(); | |
int start = p.line - numLines, end = p.line + numLines; | |
msg += "\n---start--\n" + StringUtils.getNumberedLines(lines, start, end) + "---end---"; | |
} | |
} | |
return msg; | |
} | |
/** | |
* Returns the highest-level <c>ParseException</c> in the stack trace. | |
* | |
* <p> | |
* Useful for JUnit testing of error conditions. | |
* | |
* @return The root parse exception, or this exception if there isn't one. | |
*/ | |
public ParseException getRootCause() { | |
ParseException t = this; | |
while (! (t.getCause() == null || ! (t.getCause() instanceof ParseException))) | |
t = (ParseException)t.getCause(); | |
return t; | |
} | |
} |