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 * 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).

 *

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

import javax.xml.namespace.NamespaceContext;

import javax.xml.stream.XMLEventWriter;

import javax.xml.stream.XMLStreamWriter;

/**

 * Post-init action for {@link MarshallerImpl} that incorporate the in-scope namespace bindings

 * from a StAX writer.

 *

 * <p>

 * It's always used either with {@link XMLStreamWriter}, {@link XMLEventWriter}, or bare

 * {@link NamespaceContext},

 * but to reduce the # of classes in the runtime I wrote only one class that handles both.

 *

 * @author Kohsuke Kawaguchi

 */

final class StAXPostInitAction implements Runnable {

    private final XMLStreamWriter xsw;

    private final XMLEventWriter xew;

    private final NamespaceContext nsc;

    private final XMLSerializer serializer;

    StAXPostInitAction(XMLStreamWriter xsw,XMLSerializer serializer) {

        this.xsw = xsw;

        this.xew = null;

        this.nsc = null;

        this.serializer = serializer;

    }

    StAXPostInitAction(XMLEventWriter xew,XMLSerializer serializer) {

        this.xsw = null;

        this.xew = xew;

        this.nsc = null;

        this.serializer = serializer;

    }

    StAXPostInitAction(NamespaceContext nsc,XMLSerializer serializer) {

        this.xsw = null;

        this.xew = null;

        this.nsc = nsc;

        this.serializer = serializer;

    }

    public void run() {

        NamespaceContext ns = nsc;

        if(xsw!=null)   ns = xsw.getNamespaceContext();

        if(xew!=null)   ns = xew.getNamespaceContext();

        // StAX javadoc isn't very clear on the behavior,

        // so work defensively in anticipation of broken implementations.

        if(ns==null)

            return;

        // we can't enumerate all the in-scope namespace bindings in StAX,

        // so we only look for the known static namespace URIs.

        // this is less than ideal, but better than nothing.

        for( String nsUri : serializer.grammar.nameList.namespaceURIs ) {

            String p = ns.getPrefix(nsUri);

            if(p!=null)

                serializer.addInscopeBinding(nsUri,p);

        }

    }

}