/*

 * 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.xml.internal.bind.v2.runtime.unmarshaller;

import javax.xml.bind.annotation.DomHandler;

import com.sun.xml.internal.bind.v2.model.core.WildcardMode;

import org.xml.sax.SAXException;

/**

 * Feed incoming events to {@link DomHandler} and builds a DOM tree.

 *

 * <p>

 * Note that the SAXException returned by the ContentHandler is

 * unreported. So we have to catch them and report it, then rethrow

 * it if necessary.

 *

 * @author

 *     Kohsuke Kawaguchi (kohsuke.kawaguchi@sun.com)

 */

public final class WildcardLoader extends ProxyLoader {

    private final DomLoader dom;

    private final WildcardMode mode;

    public WildcardLoader(DomHandler dom, WildcardMode mode) {

        this.dom = new DomLoader(dom);

        this.mode = mode;

    }

    protected Loader selectLoader(UnmarshallingContext.State state, TagName tag) throws SAXException {

        UnmarshallingContext context = state.getContext();

        if(mode.allowTypedObject) {

            Loader l = context.selectRootLoader(state,tag);

            if(l!=null)

                return l;

        }

        if(mode.allowDom)

            return dom;

        // simply discard.

        return Discarder.INSTANCE;

    }

}