/*

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the LICENSE file that accompanied this code.

 *

 * This code 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

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

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package com.sun.tools.internal.xjc.reader.dtd.bindinfo;

import java.util.ArrayList;

import com.sun.tools.internal.xjc.generator.bean.field.FieldRenderer;

import com.sun.tools.internal.xjc.generator.bean.field.FieldRendererFactory;

import org.w3c.dom.Attr;

import org.w3c.dom.Element;

public class BIAttribute

{

    /**

     * <p>

     * Should be created only from {@link BIElement}.

     */

    BIAttribute( BIElement _parent, Element _e ) {

        this.parent = _parent;

        this.element = _e;

    }

    private final BIElement parent;

    private final Element element;

    /** Gets the name of this attribute-property declaration. */

    public final String name() {

        return element.getAttribute("name");

    }

    /**

     * Gets the conversion method for this attribute, if any.

     *

     * @return

     *        If the convert attribute is not specified, this

     *        method returns null.

     */

    public BIConversion getConversion() {

        if (element.getAttributeNode("convert") == null)

            return null;

        String cnv = element.getAttribute("convert");

        return parent.conversion(cnv);

    }

    /**

     * Gets the realization of this particle, if any.

     *

     * @return

     *      null if the "collection" attribute was not specified.

     */

    public final FieldRenderer getRealization() {

        Attr a = element.getAttributeNode("collection");

        if(a==null)     return null;

        String v = element.getAttribute("collection").trim();

        FieldRendererFactory frf = parent.parent.model.options.getFieldRendererFactory();

        if(v.equals("array"))   return frf.getArray();

        if(v.equals("list"))

            return frf.getList(

                parent.parent.codeModel.ref(ArrayList.class));

        // the correctness of the attribute value must be

        // checked by the validator.

        throw new InternalError("unexpected collection value: "+v);

    }

    /**

     * Gets the property name for this attribute.

     *

     * @return

     *      always a non-null, valid string.

     */

    public final String getPropertyName() {

        String r = DOMUtil.getAttribute(element,"property");

        if(r!=null)     return r;

        else            return name();

    }

}