001    //$HeadURL: svn+ssh://rbezema@svn.wald.intevation.org/deegree/base/branches/2.2_testing/src/org/deegree/portal/standard/wms/util/ClientHelper.java $
002    /*----------------    FILE HEADER  ------------------------------------------
003    
004     This file is part of deegree.
005     Copyright (C) 2001-2008 by:
006     EXSE, Department of Geography, University of Bonn
007     http://www.giub.uni-bonn.de/deegree/
008     lat/lon GmbH
009     http://www.lat-lon.de
010    
011     This library is free software; you can redistribute it and/or
012     modify it under the terms of the GNU Lesser General Public
013     License as published by the Free Software Foundation; either
014     version 2.1 of the License, or (at your option) any later version.
015    
016     This library is distributed in the hope that it will be useful,
017     but WITHOUT ANY WARRANTY; without even the implied warranty of
018     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
019     Lesser General Public License for more details.
020    
021     You should have received a copy of the GNU Lesser General Public
022     License along with this library; if not, write to the Free Software
023     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
024    
025     Contact:
026    
027     Andreas Poth
028     lat/lon GmbH
029     Aennchenstr. 19
030     53115 Bonn
031     Germany
032     E-Mail: poth@lat-lon.de
033    
034     Prof. Dr. Klaus Greve
035     Department of Geography
036     University of Bonn
037     Meckenheimer Allee 166
038     53115 Bonn
039     Germany
040     E-Mail: greve@giub.uni-bonn.de
041    
042     
043     ---------------------------------------------------------------------------*/
044    package org.deegree.portal.standard.wms.util;
045    
046    import org.deegree.ogcwebservices.wms.capabilities.Layer;
047    
048    /**
049     * 
050     * 
051     * @author <a href="mailto:poth@lat-lon.de">Andreas Poth</a>
052     * @author last edited by: $Author: apoth $
053     * 
054     * @version $Revision: 9346 $, $Date: 2007-12-27 17:39:07 +0100 (Do, 27 Dez 2007) $
055     */
056    public class ClientHelper {
057    
058        /**
059         * 
060         * @param root
061         * @return String representation of Layers as tree
062         */
063        public static String getLayersAsTree( Layer root ) {
064            StringBuffer sb = new StringBuffer( 10000 );
065            sb.append( "<h3>" ).append( root.getTitle() ).append( ":</h3>" );
066            Layer[] layers = root.getLayer();
067            int indent = 0;
068            for ( int i = 0; i < layers.length; i++ ) {
069                appendLayer( layers[i], indent, sb );
070            }
071            return sb.toString();
072        }
073    
074        private static void appendLayer( Layer layer, int indent, StringBuffer target ) {
075            indent++;
076            String s = "";
077            for ( int i = 0; i < indent; i++ ) {
078                s = s + "&nbsp;";
079            }
080            target.append( s );
081            if ( layer.getName() != null ) {
082                target.append( s ).append( "<input name='LAYER' type='checkbox' " );
083                target.append( "value='" );
084                appendHTMLEntityEncode( layer.getName(), target );
085                target.append( '|' );
086                appendHTMLEntityEncode( layer.getTitle(), target );
087                target.append( '|' );
088                target.append( layer.isQueryable() ).append( "' >" );
089                appendHTMLEntityEncode( layer.getTitle(), target );
090                target.append( "<br/>\n" );
091            } else {
092                target.append( "<b>" );
093                appendHTMLEntityEncode( layer.getTitle(), target );
094                target.append( "</b><br/>" );
095                Layer[] layers = layer.getLayer();
096                for ( int i = 0; i < layers.length; i++ ) {
097                    appendLayer( layers[i], indent, target );
098                }
099                target.append( "<br/>" );
100            }       
101        }
102    
103        public static String appendHTMLEntityEncode( String s, StringBuffer sb ) {
104            StringBuffer buf = new StringBuffer();
105            for ( int i = 0; i < s.length(); i++ ) {
106                char c = s.charAt( i );
107                if ( c >= 'a' && c <= 'z' || c >= 'A' && c <= 'Z' || c >= '0' && c <= '9' ) {
108                    buf.append( c );
109                } else {
110                    buf.append( "&#" + (int) c + ";" );
111                }
112            }
113    
114            return sb.append( buf ).toString();
115        }
116    
117    }