/*
* Copyright (c) 2018 Ronald Brill.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.gargoylesoftware.css.parser;
/**
* @author Ronald Brill
*/
public class
CSSException extends
RuntimeException {
/** Enum for error codes. */
protected enum
ErrorCode {
/** Unspecified. */
UNSPECIFIED_ERR,
/** Not supported. */
NOT_SUPPORTED_ERR,
/** Syntax error. */
SYNTAX_ERR,
}
private
String message_;
private
ErrorCode code_;
/**
* Creates a new CSSException.
*/
public
CSSException() {
}
/**
* Creates a new CSSException.
* @param message the message
*/
public
CSSException(final
String message) {
code_ =
ErrorCode.
UNSPECIFIED_ERR;
message_ =
message;
}
/**
* Creates a new CSSException with an embeded exception.
* @param e the embeded exception.
*/
public
CSSException(final
Exception e) {
code_ =
ErrorCode.
UNSPECIFIED_ERR;
initCause(
e);
}
/**
* Creates a new CSSException with a specific code.
* @param code a the embeded exception.
*/
public
CSSException(final
ErrorCode code) {
code_ =
code;
}
/**
* Creates a new CSSException with an embeded exception and a specified
* message.
* @param code the specified code
* @param message the message
* @param e the embeded exception
*/
public
CSSException(final
ErrorCode code, final
String message, final
Exception e) {
code_ =
code;
message_ =
message;
initCause(
e);
}
/**
* Returns the detail message of this throwable object.
*
* @return the detail message of this Throwable, or null if this Throwable
* does not have a detail message.
*/
@
Override
public
String getMessage() {
if (
message_ != null) {
return
message_;
}
if (
getCause() != null) {
return
getCause().
getMessage();
}
switch (
code_) {
case
UNSPECIFIED_ERR:
return "unknown error";
case
NOT_SUPPORTED_ERR:
return "not supported";
case
SYNTAX_ERR:
return "syntax error";
default:
return null;
}
}
/**
* @return the error code for this exception.
*/
public
ErrorCode getCode() {
return
code_;
}
}