/*

 * 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.generator.bean;

import javax.xml.bind.JAXBElement;

import javax.xml.namespace.QName;

import com.sun.codemodel.internal.JClass;

import com.sun.codemodel.internal.JCodeModel;

import com.sun.codemodel.internal.JExpr;

import com.sun.codemodel.internal.JExpression;

import com.sun.codemodel.internal.JFieldVar;

import com.sun.codemodel.internal.JInvocation;

import com.sun.codemodel.internal.JMethod;

import com.sun.codemodel.internal.JMod;

import com.sun.codemodel.internal.JType;

import com.sun.tools.internal.xjc.model.CElementInfo;

import com.sun.tools.internal.xjc.outline.ElementOutline;

/**

 * {@link ElementOutline} implementation.

 *

 * @author Kohsuke Kawaguchi

 */

final class ElementOutlineImpl extends ElementOutline {

    private final BeanGenerator parent;

    public BeanGenerator parent() {

        return parent;

    }

    /*package*/ ElementOutlineImpl(BeanGenerator parent, CElementInfo ei) {

        super(ei,

              parent.getClassFactory().createClass(

                      parent.getContainer( ei.parent, Aspect.EXPOSED ), ei.shortName(), ei.getLocator() ));

        this.parent = parent;

        parent.elements.put(ei,this);

        JCodeModel cm = parent.getCodeModel();

        implClass._extends(

            cm.ref(JAXBElement.class).narrow(

                target.getContentInMemoryType().toType(parent,Aspect.EXPOSED).boxify()));

        if(ei.hasClass()) {

            JType implType = ei.getContentInMemoryType().toType(parent,Aspect.IMPLEMENTATION);

            JExpression declaredType = JExpr.cast(cm.ref(Class.class),implType.boxify().dotclass()); // why do we have to cast?

            JClass scope=null;

            if(ei.getScope()!=null)

                scope = parent.getClazz(ei.getScope()).implRef;

            JExpression scopeClass = scope==null?JExpr._null():scope.dotclass();

            JFieldVar valField = implClass.field(JMod.PROTECTED|JMod.FINAL|JMod.STATIC,QName.class,"NAME",createQName(cm,ei.getElementName()));

            // take this opportunity to generate a constructor in the element class

            JMethod cons = implClass.constructor(JMod.PUBLIC);

            cons.body().invoke("super")

                .arg(valField)

                .arg(declaredType)

                .arg(scopeClass)

                .arg(cons.param(implType,"value"));

            // generate no-arg constructor in the element class (bug #391; section 5.6.2 in JAXB spec 2.1)

            JMethod noArgCons = implClass.constructor(JMod.PUBLIC);

            noArgCons.body().invoke("super")

                .arg(valField)

                .arg(declaredType)

                .arg(scopeClass)

                .arg(JExpr._null());

        }

    }

    /**

     * Generates an expression that evaluates to "new QName(...)"

     */

    private JInvocation createQName(JCodeModel codeModel,QName name) {

        return JExpr._new(codeModel.ref(QName.class)).arg(name.getNamespaceURI()).arg(name.getLocalPart());

    }

}