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/*
* _____________________________________________________________________________
*
* INAF - OATS National Institute for Astrophysics - Astronomical Observatory of
* Trieste INAF - IA2 Italian Center for Astronomical Archives
* _____________________________________________________________________________
*
* Copyright (C) 2017 Istituto Nazionale di Astrofisica
*
* This program is free software; you can redistribute it and/or modify it under
* the terms of the GNU General Public License Version 3 as published by the
* Free Software Foundation.
*
* This program 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. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License along with
* this program; if not, write to the Free Software Foundation, Inc., 51
* Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
package it.inaf.ia2.tsm.webapp;
import java.io.Serializable;
import uk.me.nxg.unity.Syntax;
import uk.me.nxg.unity.UnitExpr;
import uk.me.nxg.unity.UnitParser;
/**
* Serializable wrapper for VOUnit UnitExpr
*
Sonia Zorba
committed
* @author Sonia Zorba {@literal <zorba at oats.inaf.it>}
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*/
public class VOUnitValidator implements Serializable {
private static final long serialVersionUID = -1019359441934896102L;
private static final Syntax syntax = Syntax.lookup("vounits");
private final boolean unset;
private boolean parsable;
private boolean allUnitsRecognised;
private boolean allUnitsRecommended;
private boolean allUsageConstraintsSatisfied;
private String exceptionMessage;
public VOUnitValidator(String value) {
unset = value == null || value.isEmpty();
if (!unset) {
try {
UnitParser parser = new UnitParser(syntax, value);
UnitExpr expr = parser.getParsed();
allUnitsRecognised = expr.allUnitsRecognised(syntax);
allUnitsRecommended = expr.allUnitsRecommended(syntax);
allUsageConstraintsSatisfied = expr.allUsageConstraintsSatisfied(syntax);
parsable = true;
} catch (Throwable t) {
exceptionMessage = t.getMessage();
}
}
}
public boolean isUnset() {
return unset;
}
public boolean isParsable() {
return parsable;
}
public boolean isAllUnitsRecognised() {
return allUnitsRecognised;
}
public boolean isAllUnitsRecommended() {
return allUnitsRecommended;
}
public boolean isAllUsageConstraintsSatisfied() {
return allUsageConstraintsSatisfied;
}
public String getExceptionMessage() {
return exceptionMessage;
}
}