/*
* RHQ Management Platform
* Copyright (C) 2005-2008 Red Hat, Inc.
* All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License, version 2, as
* published by the Free Software Foundation, and/or the GNU Lesser
* General Public License, version 2.1, also 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 and the GNU Lesser General Public License
* for more details.
*
* You should have received a copy of the GNU General Public License
* and the GNU Lesser 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 org.rhq.core.gui.validator;
import javax.faces.application.FacesMessage;
import javax.faces.component.StateHolder;
import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;
import javax.faces.validator.Validator;
import javax.faces.validator.ValidatorException;
/**
* A validator that validates that the given value matches a regular expression.
*
* @author Mark Spritzler
*/
public class RegexValidator implements Validator, StateHolder {
private static final String FAILED_VALIDATION = "Invalid value - does not match regular expression: ";
private String regex;
private boolean isTransient;
// A public no-arg constructor is required by the JSF spec.
public RegexValidator() {
}
public RegexValidator(String regex) {
this.regex = regex;
}
public void validate(FacesContext facesContext, UIComponent component, Object value) throws ValidatorException {
if (value != null) {
String stringValue = value.toString();
if (!stringValue.matches(this.regex)) {
throw new ValidatorException(new FacesMessage(FacesMessage.SEVERITY_ERROR, FAILED_VALIDATION
+ this.regex, null));
}
}
}
public String getRegex() {
return regex;
}
public void setRegex(String regex) {
this.regex = regex;
}
public boolean isTransient() {
return isTransient;
}
public void restoreState(FacesContext facesContext, Object object) {
Object[] values = (Object[]) object;
this.regex = (String) values[0];
}
public Object saveState(FacesContext facesContext) {
Object[] values = new Object[1];
values[0] = this.regex;
return (values);
}
public void setTransient(boolean isTransient) {
this.isTransient = isTransient;
}
}