net.anotheria.anosite.content.variables.CalendarProcessor Maven / Gradle / Ivy
package net.anotheria.anosite.content.variables;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import javax.servlet.http.HttpServletRequest;
/**
* Variable processor for dates.
*
* @author h3llka
*/
public class CalendarProcessor implements VariablesProcessor {
/**
* Logger.
*/
private static final Logger log = LoggerFactory.getLogger(CalendarProcessor.class);
/**
* Returns variable value for incoming variable parameter. If format - which represented by defValue - valid,
* then variable value will be represented in current format, else default format will be used.
* @see net.anotheria.anosite.content.variables.CalendarVariableNames).
* When incoming variable does not exists, or wrong - Wrong or unsupported variable will be returned as well.
* Variable can't be null will be returned when variable - null.
*
* @param prefix Processor prefix
* @param variable variable name
* @param defValue currently string representation of dateFormat
* @param req request instance
* @return variable value
*/
@Override public String replace(String prefix, String variable, String defValue, HttpServletRequest req) {
try {
CalendarVariableNames variableName = CalendarVariableNames.valueOf(CalendarVariableNames.class, variable);
return variableName.getVariableValue(defValue);
}
catch (NullPointerException e){
log.error("Exception has been occured while trying to use CallendarProcessor replace method", e);
log.debug("incoming variable = " + variable);
return "Variable can't be null";
}
catch (IllegalArgumentException e) {
log.error("Exception has been occured while trying to use CallendarProcessor replace method", e);
log.debug("incoming variable = " + variable);
return "Wrong or unsupported variable";
}
}
}