    001    //$HeadURL: https://svn.wald.intevation.org/svn/deegree/base/branches/2.4_testing/src/org/deegree/portal/standard/wms/util/ClientHelper.java $
    002    /*----------------------------------------------------------------------------
    003     This file is part of deegree, http://deegree.org/
    004     Copyright (C) 2001-2009 by:
    005     - Department of Geography, University of Bonn -
    006     and
    007     - lat/lon GmbH -
    008
    009     This library is free software; you can redistribute it and/or modify it under
    010     the terms of the GNU Lesser General Public License as published by the Free
    011     Software Foundation; either version 2.1 of the License, or (at your option)
    012     any later version.
    013     This library is distributed in the hope that it will be useful, but WITHOUT
    014     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
    015     FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
    016     details.
    017     You should have received a copy of the GNU Lesser General Public License
    018     along with this library; if not, write to the Free Software Foundation, Inc.,
    019     59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
    020
    021     Contact information:
    022
    023     lat/lon GmbH
    024     Aennchenstr. 19, 53177 Bonn
    025     Germany
    026     http://lat-lon.de/
    027
    028     Department of Geography, University of Bonn
    029     Prof. Dr. Klaus Greve
    030     Postfach 1147, 53001 Bonn
    031     Germany
    032     http://www.geographie.uni-bonn.de/deegree/
    033
    034     e-mail: info@deegree.org
    035     ----------------------------------------------------------------------------*/
    036    package org.deegree.portal.standard.wms.util;
    037
    038    import org.deegree.framework.util.StringTools;
    039    import org.deegree.i18n.Messages;
    040    import org.deegree.ogcwebservices.getcapabilities.MetadataURL;
    041    import org.deegree.ogcwebservices.wms.capabilities.Layer;
    042
    043    /**
    044     *
    045     *
    046     * @author <a href="mailto:poth@lat-lon.de">Andreas Poth</a>
    047     * @author last edited by: $Author: jmays $
    048     *
    049     * @version $Revision: 25822 $, $Date: 2010-08-11 14:29:01 +0200 (Mi, 11. Aug 2010) $
    050     */
    051    public class ClientHelper {
    052
    053        /**
    054         *
    055         * @param root
    056         * @return String representation of Layers as tree
    057         */
    058        public static String getLayersAsTree( Layer root ) {
    059            StringBuffer sb = new StringBuffer( 10000 );
    060            sb.append( Messages.getMessage( "IGEO_STD_WMSLAYERSELECT_LAYERTREE_HEADER", root.getTitle() ) );
    061            Layer[] layers = root.getLayer();
    062            int indent = 0;
    063            for ( int i = 0; i < layers.length; i++ ) {
    064                appendLayer( layers[i], indent, sb );
    065            }
    066            return sb.toString();
    067        }
    068
    069        private static void appendLayer( Layer layer, int indent, StringBuffer target ) {
    070            indent++;
    071            String s = "";
    072            for ( int i = 0; i < indent; i++ ) {
    073                s = s + "&nbsp;";
    074            }
    075            target.append( s );
    076            if ( layer.getName() != null ) {
    077
    078                // get MetadataURL
    079                String metadataUrl = null;
    080                if ( layer.getMetadataURL() != null ) {
    081                    MetadataURL[] mdURLs = layer.getMetadataURL();
    082                    MetadataURL mdUrl = null;
    083                    if ( mdURLs != null && mdURLs.length > 0 ) {
    084                        mdUrl = (MetadataURL) mdURLs[0];
    085                        metadataUrl = mdUrl.getOnlineResource().toExternalForm();
    086                    }
    087                }
    088
    089                target.append( s ).append( "<input name='LAYER' type='checkbox' " );
    090                target.append( "value='" );
    091                appendHTMLEntityEncode( layer.getName(), target ); // value_0
    092                target.append( '|' );
    093                appendHTMLEntityEncode( layer.getTitle(), target ); // value_1
    094                target.append( '|' );
    095                target.append( layer.isQueryable() ); // value_2
    096                target.append( '|' );
    097                // TODO test new stuff (value_3, value_4, value_5):
    098                if ( metadataUrl != null ) {
    099                    metadataUrl = StringTools.replace( metadataUrl, "&", "&amp;", true );
    100                    target.append( metadataUrl ); // value_3
    101                }
    102                target.append( '|' );
    103                if ( layer.getScaleHint() != null ) {
    104                    target.append( layer.getScaleHint().getMin() ).append( '|' ); // value_4
    105                    target.append( layer.getScaleHint().getMax() ); // value_5
    106                } else {
    107                    // no scaleHint provided in Layer
    108                    target.append( '0' ).append( '|' ).append( Double.MAX_VALUE );
    109                }
    110                target.append( "' >" );
    111                appendHTMLEntityEncode( layer.getTitle(), target );
    112                target.append( "<br/>\n" );
    113            } else {
    114                target.append( "<b>" );
    115                appendHTMLEntityEncode( layer.getTitle(), target );
    116                target.append( "</b><br/>" );
    117                Layer[] layers = layer.getLayer();
    118                for ( int i = 0; i < layers.length; i++ ) {
    119                    appendLayer( layers[i], indent, target );
    120                }
    121                target.append( "<br/>" );
    122            }
    123        }
    124
    125        /**
    126         * @param s
    127         * @param sb
    128         * @return the new string
    129         */
    130        public static String appendHTMLEntityEncode( String s, StringBuffer sb ) {
    131            StringBuffer buf = new StringBuffer();
    132            for ( int i = 0; i < s.length(); i++ ) {
    133                char c = s.charAt( i );
    134                if ( c >= 'a' && c <= 'z' || c >= 'A' && c <= 'Z' || c >= '0' && c <= '9' ) {
    135                    buf.append( c );
    136                } else {
    137                    buf.append( "&#" + (int) c + ";" );
    138                }
    139            }
    140
    141            return sb.append( buf ).toString();
    142        }
    143
    144    }