Package org.apache.myfaces.view.facelets.tag.jsf.core

Source Code of org.apache.myfaces.view.facelets.tag.jsf.core.ConvertNumberHandler

/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements.  See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership.  The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License.  You may obtain a copy of the License at
*
*   http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied.  See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.myfaces.view.facelets.tag.jsf.core;

import javax.el.ELException;
import javax.faces.FacesException;
import javax.faces.convert.Converter;
import javax.faces.convert.NumberConverter;
import javax.faces.view.facelets.ConverterConfig;
import javax.faces.view.facelets.ConverterHandler;
import javax.faces.view.facelets.FaceletContext;
import javax.faces.view.facelets.FaceletException;
import javax.faces.view.facelets.MetaRuleset;
import javax.faces.view.facelets.TagAttribute;

import org.apache.myfaces.buildtools.maven2.plugin.builder.annotation.JSFFaceletAttribute;
import org.apache.myfaces.buildtools.maven2.plugin.builder.annotation.JSFFaceletTag;
import org.apache.myfaces.view.facelets.tag.jsf.ComponentSupport;

/**
* Register a NumberConverter instance on the UIComponent associated with the closest parent UIComponent custom action.
* <p/> See <a target="_new"
* href="http://java.sun.com/j2ee/javaserverfaces/1.1_01/docs/tlddocs/f/convertNumber.html">tag documentation</a>.
*
* @author Jacob Hookom
* @version $Id: ConvertNumberHandler.java 1187700 2011-10-22 12:19:37Z bommel $
*/
@JSFFaceletTag(
        name = "f:convertNumber",
        bodyContent = "empty",
        converterClass="javax.faces.convert.NumberConverter")
public final class ConvertNumberHandler extends ConverterHandler
{

    private final TagAttribute locale;

    /**
     * @param config
     */
    public ConvertNumberHandler(ConverterConfig config)
    {
        super(config);
        this.locale = this.getAttribute("locale");
    }

    /**
     * Returns a new NumberConverter
     *
     * @see NumberConverter
     * @see org.apache.myfaces.view.facelets.tag.jsf.ConverterHandler#createConverter(javax.faces.view.facelets.FaceletContext)
     */
    protected Converter createConverter(FaceletContext ctx) throws FacesException, ELException, FaceletException
    {
        return ctx.getFacesContext().getApplication().createConverter(NumberConverter.CONVERTER_ID);
    }

    /*
     * (non-Javadoc)
     *
     * @see org.apache.myfaces.view.facelets.tag.ObjectHandler#setAttributes(javax.faces.view.facelets.FaceletContext, java.lang.Object)
     */
    public void setAttributes(FaceletContext ctx, Object obj)
    {
        super.setAttributes(ctx, obj);
        NumberConverter c = (NumberConverter) obj;
        if (this.locale != null)
        {
            c.setLocale(ComponentSupport.getLocale(ctx, this.locale));
        }
    }

    protected MetaRuleset createMetaRuleset(Class type)
    {
        return super.createMetaRuleset(type).ignore("locale");
    }

}
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