com.sun.faces.taglib.html_basic.HtmlBasicValidator Maven / Gradle / Ivy

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This is the master POM file for Oracle's Implementation of the JSF 2.2 Specification.
There is a newer version: 2.2.20
/*
 * 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:
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 * 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
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 */

package com.sun.faces.taglib.html_basic;

import com.sun.faces.taglib.FacesValidator;
import com.sun.faces.taglib.ValidatorInfo;
import com.sun.faces.util.Util;

import org.xml.sax.Attributes;
import org.xml.sax.helpers.DefaultHandler;


/**
 * Top level validator for the html_basic tld
 *
 * @author Justyna Horwat
 * @author Ed Burns
 */
public class HtmlBasicValidator extends FacesValidator {

    //*********************************************************************
    // Validation and configuration state (protected)
    private ValidatorInfo validatorInfo;
    private CommandTagParserImpl commandTagParser;


    //*********************************************************************
    // Constructor and lifecycle management

    public HtmlBasicValidator() {
        super();
        init();
    }


    protected void init() {
        super.init();
        failed = false;
        validatorInfo = new ValidatorInfo();

        commandTagParser = new CommandTagParserImpl();
        commandTagParser.setValidatorInfo(validatorInfo);
    }


    public void release() {
        super.release();
        init();
    }


    protected DefaultHandler getSAXHandler() {
	// don't run the TLV if we're in designTime, or the RIConstants
	// says not to.
	if (java.beans.Beans.isDesignTime() || 
	    !Util.isHtmlTLVActive()) {
	    return null;
	}
	
        return new HtmlBasicValidatorHandler();
    }


    protected String getFailureMessage(String prefix, String uri) {
        // we should only get called if this Validator failed        

        StringBuffer result = new StringBuffer();
      
        if (commandTagParser.getMessage() != null) {
            result.append(commandTagParser.getMessage());
        }
        return result.toString();
    }
	    
    //*********************************************************************
    // SAX handler

    /**
     * The handler that provides the base of the TLV implementation.
     */
    private class HtmlBasicValidatorHandler extends DefaultHandler {

        /**
         * Parse the starting element.  Parcel out to appropriate
         * handler method.
         *
         * @param ns Element name space.
         * @param ln Element local name.
         * @param qn Element QName.
         * @param attrs  Element's Attribute list.
         */
        public void startElement(String ns,
                                 String ln,
                                 String qn,
                                 Attributes attrs) {
            maybeSnagTLPrefixes(qn, attrs);
            validatorInfo.setNameSpace(ns);
            validatorInfo.setLocalName(ln);
            validatorInfo.setQName(qn);
            validatorInfo.setAttributes(attrs);

            commandTagParser.parseStartElement();
            if (commandTagParser.hasFailed()) {
                failed = true;
            }
        }


        /**
         * Parse the ending element. If it is a specific JSTL tag
         * make sure that the nested count is decreased.
         *
         * @param ns Element namespace.
         * @param ln Element local name.
         * @param qn Element QName.
         */
        public void endElement(String ns, String ln, String qn) {
        }
    }
}