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A PHP engine implemented in 100% Java
/*
* Copyright (c) 1998-2012 Caucho Technology -- all rights reserved
*
* This file is part of Resin(R) Open Source
*
* Each copy or derived work must preserve the copyright notice and this
* notice unmodified.
*
* Resin Open Source is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* Resin Open Source is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
* of NON-INFRINGEMENT. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License
* along with Resin Open Source; if not, write to the
*
* Free Software Foundation, Inc.
* 59 Temple Place, Suite 330
* Boston, MA 02111-1307 USA
*
* @author Scott Ferguson
*/
package com.caucho.quercus.env;
import com.caucho.quercus.Location;
import com.caucho.quercus.QuercusException;
import com.caucho.quercus.lib.ErrorModule;
/**
* Parent of PHP exceptions
*/
public class QuercusLanguageException extends QuercusException
{
private static final StringValue FILE = new ConstStringValue("file");
private static final StringValue LINE = new ConstStringValue("line");
private static final StringValue MESSAGE = new ConstStringValue("message");
private ArrayValue _trace;
private Value _value;
protected QuercusLanguageException(Env env)
{
_value = env.wrapJava(this);
}
public QuercusLanguageException(Value value)
{
super(value.toString());
_value = value;
}
public Value toException(Env env)
{
// php/0g0j
if (_value.isA(env, "Exception")) {
return _value;
}
else {
return env.wrapJava(this);
}
}
/**
* Returns the value.
*/
public Value getValue()
{
return _value;
}
/**
* Converts the exception to a Value.
*/
public Value toValue(Env env)
{
return _value;
}
/**
* Returns the PHP exception message. If null, returns the empty string.
*/
public String getMessage(Env env)
{
Value field = _value.getField(env, MESSAGE);
String msg;
if (field != null)
msg = field.toString();
else
msg = getMessage();
return msg + env.getStackTraceAsString(getTrace(env), getLocation(env));
}
/**
* Returns the location of this PHP exception.
*/
public Location getLocation(Env env)
{
Value file = _value.getField(env, FILE);
Value line = _value.getField(env, LINE);
if (file.isNull() || line.isNull())
return Location.UNKNOWN;
else
return new Location(file.toString(), line.toInt(), null, null);
}
public int getLine(Env env)
{
return getLocation(env).getLineNumber();
}
public String getFile(Env env)
{
return getLocation(env).getFileName();
}
public ArrayValue getTrace(Env env)
{
if (_trace == null) {
_trace = ErrorModule.debug_backtrace_exception(env, this, 0);
}
return _trace;
}
}