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package org.json.simple.parser;
/**
* ParseException explains why and where the error occurs in source JSON text.
*
* @author FangYidong<fangyidong@yahoo.com.cn>
*
*/
public class ParseException extends Exception {
private static final long serialVersionUID = -7880698968187728548L;
public static final int ERROR_UNEXPECTED_CHAR = 0;
public static final int ERROR_UNEXPECTED_TOKEN = 1;
public static final int ERROR_UNEXPECTED_EXCEPTION = 2;
private int errorType;
private Object unexpectedObject;
private int position;
public ParseException(int errorType, Throwable throwable) {
this(-1, errorType, null, throwable);
}
public ParseException(int errorType, Object unexpectedObject) {
this(-1, errorType, unexpectedObject);
}
public ParseException(int position, int errorType, Object unexpectedObject) {
this(-1, errorType, unexpectedObject, null);
}
public ParseException(int position, int errorType, Object unexpectedObject, Throwable throwable) {
super(throwable);
this.position = position;
this.errorType = errorType;
this.unexpectedObject = unexpectedObject;
}
public int getErrorType() {
return errorType;
}
public void setErrorType(int errorType) {
this.errorType = errorType;
}
/**
* @see org.json.simple.parser.JSONParser#getPosition()
*
* @return The character position (starting with 0) of the input where the error occurs.
*/
public int getPosition() {
return position;
}
public void setPosition(int position) {
this.position = position;
}
/**
* @see org.json.simple.parser.Yytoken
*
* @return One of the following base on the value of errorType:
* ERROR_UNEXPECTED_CHAR java.lang.Character
* ERROR_UNEXPECTED_TOKEN org.json.simple.parser.Yytoken
* ERROR_UNEXPECTED_EXCEPTION java.lang.Exception
*/
public Object getUnexpectedObject() {
return unexpectedObject;
}
public void setUnexpectedObject(Object unexpectedObject) {
this.unexpectedObject = unexpectedObject;
}
@Override
public String toString(){
StringBuffer sb = new StringBuffer();
switch(errorType){
case ERROR_UNEXPECTED_CHAR:
sb.append("Unexpected character (").append(unexpectedObject).append(") at position ").append(position).append(".");
break;
case ERROR_UNEXPECTED_TOKEN:
sb.append("Unexpected token ").append(unexpectedObject).append(" at position ").append(position).append(".");
break;
case ERROR_UNEXPECTED_EXCEPTION:
sb.append("Unexpected exception at position ").append(position).append(": ").append(unexpectedObject);
break;
default:
sb.append("Unkown error at position ").append(position).append(".");
break;
}
return sb.toString();
}
}
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