org.apache.poi.ss.formula.constant.ErrorConstant Maven / Gradle / Ivy
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package org.apache.poi.ss.formula.constant;
import org.apache.poi.ss.usermodel.ErrorConstants;
import org.apache.poi.util.POILogFactory;
import org.apache.poi.util.POILogger;
/**
* Represents a constant error code value as encoded in a constant values array.
*
* This class is a type-safe wrapper for a 16-bit int value performing a similar job to
* ErrorEval.
*
* @author Josh Micich
*/
public class ErrorConstant {
private static POILogger logger = POILogFactory.getLogger(ErrorConstant.class);
// convenient access to name space
private static final ErrorConstants EC = null;
private static final ErrorConstant NULL = new ErrorConstant(EC.ERROR_NULL);
private static final ErrorConstant DIV_0 = new ErrorConstant(EC.ERROR_DIV_0);
private static final ErrorConstant VALUE = new ErrorConstant(EC.ERROR_VALUE);
private static final ErrorConstant REF = new ErrorConstant(EC.ERROR_REF);
private static final ErrorConstant NAME = new ErrorConstant(EC.ERROR_NAME);
private static final ErrorConstant NUM = new ErrorConstant(EC.ERROR_NUM);
private static final ErrorConstant NA = new ErrorConstant(EC.ERROR_NA);
private final int _errorCode;
private ErrorConstant(int errorCode) {
_errorCode = errorCode;
}
public int getErrorCode() {
return _errorCode;
}
public String getText() {
if(ErrorConstants.isValidCode(_errorCode)) {
return ErrorConstants.getText(_errorCode);
}
return "unknown error code (" + _errorCode + ")";
}
public static ErrorConstant valueOf(int errorCode) {
switch (errorCode) {
case ErrorConstants.ERROR_NULL: return NULL;
case ErrorConstants.ERROR_DIV_0: return DIV_0;
case ErrorConstants.ERROR_VALUE: return VALUE;
case ErrorConstants.ERROR_REF: return REF;
case ErrorConstants.ERROR_NAME: return NAME;
case ErrorConstants.ERROR_NUM: return NUM;
case ErrorConstants.ERROR_NA: return NA;
}
logger.log( POILogger.WARN, "Warning - unexpected error code (" + errorCode + ")");
return new ErrorConstant(errorCode);
}
public String toString() {
StringBuffer sb = new StringBuffer(64);
sb.append(getClass().getName()).append(" [");
sb.append(getText());
sb.append("]");
return sb.toString();
}
}