| gvSIG desktop 1

package org.gvsig.remoteClientOld.utils;

/* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana

*

* Copyright (C) 2004 IVER T.I. and Generalitat Valenciana.

*

* This program 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

* of the License, or (at your option) any later version.

*

* This program 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 this program; if not, write to the Free Software

* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,USA.

*

* For more information, contact:

*

*  Generalitat Valenciana

*   Conselleria d'Infraestructures i Transport

*   Av. Blasco Ib??ez, 50

*   46010 VALENCIA

*   SPAIN

*

*      +34 963862235

*   gvsig@gva.es

*      www.gvsig.gva.es

*

*    or

*

*   IVER T.I. S.A

*   Salamanca 50

*   46005 Valencia

*   Spain

*

*   +34 963163400

*   dac@iver.es

*/

import java.io.IOException;

import java.io.InputStream;

import java.io.OutputStream;

import java.rmi.NoSuchObjectException;

/**

* Clase con m?todos de utilidad en el protocolo WMS

*

* @author Fernando Gonz?lez Cort?s

*/

public class Utilities {

   /**

    * Copia el contenido de un InputStream en un OutputStream

    *

    * @param in InputStream

    * @param out OutputStream

    */

   public static void serializar(InputStream in, OutputStream out) {

       byte[] buffer = new byte[102400];

       int n;

       try {

           while ((n = in.read(buffer)) != -1) {

               out.write(buffer, 0, n);

           }

       } catch (IOException e) {

           e.printStackTrace();

       }

   }

   /**

    * Elimina del xml la declaraci?n del DTD

    *

    * @param bytes bytes del fichero XML de respuesta a getCapabilities

    * @param startTag Tag raiz del xml respuesta a getCapabilities

    *

    * @return bytes del fichero XML sin la declaraci?n del DTD

    */

   public static byte[] eliminarDTD(byte[] bytes, String startTag) {

       String text = new String(bytes);

       int index1 = text.indexOf("?>") + 2;

       int index2;

       try {

           index2 = findBeginIndex(bytes, startTag);

       } catch (NoSuchObjectException e) {

           return bytes;

       }

       byte[] buffer = new byte[bytes.length - (index2 - index1)];

       System.arraycopy(bytes, 0, buffer, 0, index1);

       System.arraycopy(bytes, index2, buffer, index1, bytes.length - index2);

       return buffer;

   }

   /**

    * Obtiene el ?ndice del comienzo del xml

    *

    * @param bytes bytes del fichero XML en el que se busca

    * @param tagRaiz Tag raiz del xml respuesta a getCapabilities

    *

    * @return ?ndice donde empieza el tag raiz

    *

    * @throws NoSuchObjectException Si no se encuentra el tag

    */

   private static int findBeginIndex(byte[] bytes, String tagRaiz)

       throws NoSuchObjectException {

       try {

           int nodo = 0;

           int ret = -1;

           int i = 0;

           while (true) {

               switch (nodo) {

                   case 0:

                       if (bytes[i] == '<') {

                           ret = i;

                           nodo = 1;

                       }

                       break;

                   case 1:

                       if (bytes[i] == ' ') {

                       } else if (bytes[i] == tagRaiz.charAt(0)) {

                           nodo = 2;

                       } else {

                           nodo = 0;

                       }

                       break;

                   case 2:

                       String aux = new String(bytes, i, 18);

                       if (aux.equalsIgnoreCase(tagRaiz.substring(1))) {

                           return ret;

                       }

                       nodo = 0;

                       break;

               }

               i++;

           }

       } catch (Exception e) {

           throw new NoSuchObjectException("No se pudo parsear el xml");

       }

   }

}