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 * 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,

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package com.sun.xml.internal.bind.v2.schemagen;

import javax.xml.bind.annotation.XmlNsForm;

import javax.xml.namespace.QName;

import com.sun.xml.internal.bind.v2.schemagen.xmlschema.LocalAttribute;

import com.sun.xml.internal.bind.v2.schemagen.xmlschema.LocalElement;

import com.sun.xml.internal.bind.v2.schemagen.xmlschema.Schema;

import com.sun.xml.internal.txw2.TypedXmlWriter;

/**

 * Represents the form default value.

 *

 * @author Kohsuke Kawaguchi

 */

enum Form {

    QUALIFIED(XmlNsForm.QUALIFIED,true) {

        void declare(String attName,Schema schema) {

            schema._attribute(attName,"qualified");

        }

    },

    UNQUALIFIED(XmlNsForm.UNQUALIFIED,false) {

        void declare(String attName,Schema schema) {

            // pointless, but required by the spec.

            // people need to understand that @attributeFormDefault is a syntax sugar

            schema._attribute(attName,"unqualified");

        }

    },

    UNSET(XmlNsForm.UNSET,false) {

        void declare(String attName,Schema schema) {

        }

    };

    /**

     * The same constant defined in the spec.

     */

    private final XmlNsForm xnf;

    /**

     * What's the effective value? UNSET means unqualified per XSD spec.)

     */

    public final boolean isEffectivelyQualified;

    Form(XmlNsForm xnf, boolean effectivelyQualified) {

        this.xnf = xnf;

        this.isEffectivelyQualified = effectivelyQualified;

    }

    /**

     * Writes the attribute on the generated <schema> element.

     */

    abstract void declare(String attName, Schema schema);

    /**

     * Given the effective 'form' value, write (or suppress) the @form attribute

     * on the generated XML.

     */

    public void writeForm(LocalElement e, QName tagName) {

        _writeForm(e,tagName);

    }

    public void writeForm(LocalAttribute a, QName tagName) {

        _writeForm(a,tagName);

    }

    private void _writeForm(TypedXmlWriter e, QName tagName) {

        boolean qualified = tagName.getNamespaceURI().length()>0;

        if(qualified && this!=QUALIFIED)

            e._attribute("form","qualified");

        else

        if(!qualified && this==QUALIFIED)

            e._attribute("form","unqualified");

    }

    /**

     * Gets the constant the corresponds to the given {@link XmlNsForm}.

     */

    public static Form get(XmlNsForm xnf) {

        for (Form v : values()) {

            if(v.xnf==xnf)

                return v;

        }

        throw new IllegalArgumentException();

    }

}