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/* NamespaceImpl.java --

   Copyright (C) 2005  Free Software Foundation, Inc.

This file is part of GNU Classpath.

GNU Classpath is free software; you can redistribute it and/or modify

it under the terms of the GNU General Public License as published by

the Free Software Foundation; either version 2, or (at your option)

any later version.

GNU Classpath 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 for more details.

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

along with GNU Classpath; see the file COPYING.  If not, write to the

Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA

02110-1301 USA.

Linking this library statically or dynamically with other modules is

making a combined work based on this library.  Thus, the terms and

conditions of the GNU General Public License cover the whole

combination.

As a special exception, the copyright holders of this library give you

permission to link this library with independent modules to produce an

executable, regardless of the license terms of these independent

modules, and to copy and distribute the resulting executable under

terms of your choice, provided that you also meet, for each linked

independent module, the terms and conditions of the license of that

module.  An independent module is a module which is not derived from

or based on this library.  If you modify this library, you may extend

this exception to your version of the library, but you are not

obligated to do so.  If you do not wish to do so, delete this

exception statement from your version. */

package gnu.xml.stream;

import java.io.IOException;

import java.io.Writer;

import javax.xml.namespace.QName;

import javax.xml.stream.Location;

import javax.xml.stream.XMLStreamException;

import javax.xml.stream.events.Namespace;

/**

 * A namespace declaration event.

 *

 * @author <a href='mailto:dog@gnu.org'>Chris Burdess</a>

 */

public class NamespaceImpl

  extends XMLEventImpl

  implements Namespace

{

  protected final String prefix;

  protected final String uri;

  protected final boolean specified;

  protected NamespaceImpl(Location location, String prefix, String uri,

                          boolean specified)

  {

    super(location);

    this.prefix = prefix;

    this.uri = uri;

    this.specified = specified;

  }

  public int getEventType()

  {

    return NAMESPACE;

  }

  public String getPrefix()

  {

    return prefix;

  }

  public String getNamespaceURI()

  {

    return uri;

  }

  public boolean isSpecified()

  {

    return specified;

  }

  public QName getName()

  {

    if (isDefaultNamespaceDeclaration())

      return new QName("", "xmlns", null);

    else

      return new QName("", prefix, "xmlns");

  }

  public String getDTDType()

  {

    return "CDATA";

  }

  public String getValue()

  {

    return uri;

  }

  public boolean isDefaultNamespaceDeclaration()

  {

    return (prefix == null || "".equals(prefix));

  }

  public void writeAsEncodedUnicode(Writer writer)

    throws XMLStreamException

  {

    try

      {

        writer.write("xmlns");

        if (prefix != null && !"".equals(prefix))

          {

            writer.write(':');

            writer.write(prefix);

          }

        writer.write('=');

        writer.write('"');

        writer.write(encode(uri, true));

        writer.write('"');

      }

    catch (IOException e)

      {

        XMLStreamException e2 = new XMLStreamException(e.getMessage());

        e2.initCause(e);

        throw e2;

      }

  }

}