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/*****************************************************************************
* Copyright (c) 2012 CEA LIST.
*
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Vincent Lorenzo (CEA LIST) vincent.lorenzo@cea.fr - Initial API and implementation
* Camille Letavernier (CEA LIST) camille.letavernier@cea.fr - Modification to match IValidator
*
*****************************************************************************/
package org.eclipse.papyrus.infra.widgets.validator;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Status;
import org.eclipse.papyrus.infra.widgets.messages.Messages;
/**
* Validator for the UnlimitedNaturalEditor. It accepts "-1", "*" and all integer >=0
*/
public class UnlimitedNaturalValidator extends AbstractValidator {
public static final String INFINITE_STAR = "*"; //$NON-NLS-1$
public static final String INFINITE_MINUS_ONE = "-1"; //$NON-NLS-1$
/**
* @see org.eclipse.jface.dialogs.IInputValidator#isValid(java.lang.String)
*
* @param newText
* @return <code>null</code> if the newText is valid an error message when newText is
* invalid
*/
public String isValid(String newText) {
if(INFINITE_STAR.equals(newText) || INFINITE_MINUS_ONE.equals(newText)) {
return null;
}
boolean isValid = true;
try {
Integer myUnlimitedNatural = Integer.valueOf(newText);
if(myUnlimitedNatural < -1) {
isValid = false;
}
} catch (NumberFormatException e) {
isValid = false;
}
if(!isValid) {
return Messages.UnlimitedNaturalInputValidator_NotAnUnlimitedNaturalMessage;
}
return null;
}
/**
*
* @param newValue
* @return {@link Status#OK_STATUS} if the newValue is valid and {@link IStatus#ERROR} when newValue is
* invalid
*/
@Override
public IStatus validate(Object newValue) {
if(newValue instanceof Integer) {
int value = (Integer)newValue;
if(value == -1 || value >= 0) {
return Status.OK_STATUS;
}
}
if(newValue instanceof String) {
String newText = (String)newValue;
if(INFINITE_STAR.equals(newText) || INFINITE_MINUS_ONE.equals(newText)) {
return Status.OK_STATUS;
}
boolean isValid = true;
try {
Integer myUnlimitedNatural = Integer.parseInt(newText);
if(myUnlimitedNatural < -1) {
isValid = false;
}
} catch (NumberFormatException e) {
isValid = false;
}
if(isValid) {
return Status.OK_STATUS;
}
}
return error(Messages.UnlimitedNaturalInputValidator_NotAnUnlimitedNaturalMessage);
}
}
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