javax.faces.validator.RegexValidator Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of jsf-api Show documentation
Show all versions of jsf-api Show documentation
This is the master POM file for Sun's Implementation of the JSF 2.1 Specification.
/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright (c) 1997-2010 Oracle and/or its affiliates. All rights reserved.
*
* The contents of this file are subject to the terms of either the GNU
* General Public License Version 2 only ("GPL") or the Common Development
* and Distribution License("CDDL") (collectively, the "License"). You
* may not use this file except in compliance with the License. You can
* obtain a copy of the License at
* https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
* or packager/legal/LICENSE.txt. See the License for the specific
* language governing permissions and limitations under the License.
*
* When distributing the software, include this License Header Notice in each
* file and include the License file at packager/legal/LICENSE.txt.
*
* GPL Classpath Exception:
* Oracle designates this particular file as subject to the "Classpath"
* exception as provided by Oracle in the GPL Version 2 section of the License
* file that accompanied this code.
*
* Modifications:
* If applicable, add the following below the License Header, with the fields
* enclosed by brackets [] replaced by your own identifying information:
* "Portions Copyright [year] [name of copyright owner]"
*
* Contributor(s):
* If you wish your version of this file to be governed by only the CDDL or
* only the GPL Version 2, indicate your decision by adding "[Contributor]
* elects to include this software in this distribution under the [CDDL or GPL
* Version 2] license." If you don't indicate a single choice of license, a
* recipient has the option to distribute your version of this file under
* either the CDDL, the GPL Version 2 or to extend the choice of license to
* its licensees as provided above. However, if you add GPL Version 2 code
* and therefore, elected the GPL Version 2 license, then the option applies
* only if the new code is made subject to such option by the copyright
* holder.
*/
package javax.faces.validator;
import javax.faces.context.FacesContext;
import javax.faces.component.UIComponent;
import javax.faces.application.FacesMessage;
import java.util.Locale;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import java.util.regex.PatternSyntaxException;
import javax.faces.component.PartialStateHolder;
/**
* A Validator that checks
* against a Regular Expression (which is the pattern property). The
* pattern must resolve to a String that follows the java.util.regex
* standards.
* @since 2.0
*/
public class RegexValidator implements Validator, PartialStateHolder {
private String regex;
/**
* The standard converter id for this converter.
*/
public static final String VALIDATOR_ID = "javax.faces.RegularExpression";
/**
* The message identifier of the {@link
* javax.faces.application.FacesMessage} to be created if the value
* returned from {@link #getPattern} is null or the
* empty String.
*/
public static final String PATTERN_NOT_SET_MESSAGE_ID =
"javax.faces.validator.RegexValidator.PATTERN_NOT_SET";
/**
* The message identifier of the {@link
* javax.faces.application.FacesMessage} to be created if the act of
* matching the value against the pattern returned from {@link
* #getPattern} fails because the value does not match the
* pattern.
*/
public static final String NOT_MATCHED_MESSAGE_ID =
"javax.faces.validator.RegexValidator.NOT_MATCHED";
/**
* The message identifier of the {@link
* javax.faces.application.FacesMessage} to be created if the act of
* matching the value against the pattern returned from {@link
* #getPattern} fails because of a
* PatternSyntaxException.
*/
public static final String MATCH_EXCEPTION_MESSAGE_ID =
"javax.faces.validator.RegexValidator.MATCH_EXCEPTION";
/**
* The Regular Expression property to validate against.
*
* @param pattern a regular expression pattern
*/
public void setPattern(String pattern) {
clearInitialState();
this.regex = pattern;
}
/**
* Return the ValueExpression that yields the
* regular expression pattern when evaluated.
*/
public String getPattern() {
return this.regex;
}
/**
* Validate a String against a regular expression pattern. The
* full regex pattern must be matched in order to pass the
* validation.
* @param context {@inheritDoc}
* @param component {@inheritDoc}
* @param value {@inheritDoc}
* @throws NullPointerException {@inheritDoc}
* @throws ValidatorException {@inheritDoc}
*/
public void validate(FacesContext context,
UIComponent component,
Object value) {
if (context == null) {
throw new NullPointerException();
}
if (component == null) {
throw new NullPointerException();
}
if (value == null) {
return;
}
FacesMessage fmsg;
Locale locale = context.getViewRoot().getLocale();
if (regex == null || regex.length() == 0) {
fmsg = MessageFactory.getMessage(locale,
PATTERN_NOT_SET_MESSAGE_ID,
(Object) null);
throw new ValidatorException(fmsg);
}
try {
Pattern pattern = Pattern.compile(regex);
Matcher matcher = pattern.matcher((String) value);
if (!matcher.matches()) {
Object[] params = { regex };
fmsg = MessageFactory.getMessage(locale,
NOT_MATCHED_MESSAGE_ID,
params);
throw new ValidatorException(fmsg);
}
} catch (PatternSyntaxException pse) {
fmsg = MessageFactory.getMessage(locale,
MATCH_EXCEPTION_MESSAGE_ID,
(Object) null);
throw new ValidatorException(fmsg, pse);
}
}
// ----------------------------------------------------- StateHolder Methods
public Object saveState(FacesContext context) {
if (context == null) {
throw new NullPointerException();
}
if (!initialStateMarked()) {
Object values[] = new Object[1];
values[0] = regex;
return (values);
}
return null;
}
public void restoreState(FacesContext context, Object state) {
if (context == null) {
throw new NullPointerException();
}
if (state != null) {
Object values[] = (Object[]) state;
regex = (String) values[0];
}
}
private boolean transientValue = false;
public boolean isTransient() {
return (this.transientValue);
}
public void setTransient(boolean transientValue) {
this.transientValue = transientValue;
}
private boolean initialState;
public void markInitialState() {
initialState = true;
}
public boolean initialStateMarked() {
return initialState;
}
public void clearInitialState() {
initialState = false;
}
}