001    /*
002     * $Id: AddePointDataSource.java,v 1.4 2012/02/19 17:35:40 davep Exp $
003     *
004     * This file is part of McIDAS-V
005     *
006     * Copyright 2007-2012
007     * Space Science and Engineering Center (SSEC)
008     * University of Wisconsin - Madison
009     * 1225 W. Dayton Street, Madison, WI 53706, USA
010     * https://www.ssec.wisc.edu/mcidas
011     * 
012     * All Rights Reserved
013     * 
014     * McIDAS-V is built on Unidata's IDV and SSEC's VisAD libraries, and
015     * some McIDAS-V source code is based on IDV and VisAD source code.  
016     * 
017     * McIDAS-V is free software; you can redistribute it and/or modify
018     * it under the terms of the GNU Lesser Public License as published by
019     * the Free Software Foundation; either version 3 of the License, or
020     * (at your option) any later version.
021     * 
022     * McIDAS-V is distributed in the hope that it will be useful,
023     * but WITHOUT ANY WARRANTY; without even the implied warranty of
024     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
025     * GNU Lesser Public License for more details.
026     * 
027     * You should have received a copy of the GNU Lesser Public License
028     * along with this program.  If not, see http://www.gnu.org/licenses.
029     */
030    
031    package edu.wisc.ssec.mcidasv.data.adde;
032    
033    
034    import java.util.ArrayList;
035    import java.util.Hashtable;
036    import java.util.List;
037    
038    import ucar.unidata.data.AddeUtil;
039    import ucar.unidata.data.DataChoice;
040    import ucar.unidata.data.DataSelection;
041    import ucar.unidata.data.DataSourceDescriptor;
042    import ucar.unidata.data.point.PointObFactory;
043    import ucar.unidata.util.LogUtil;
044    import ucar.unidata.util.Misc;
045    import ucar.unidata.util.Trace;
046    import ucar.unidata.util.TwoFacedObject;
047    
048    import visad.*;
049    import visad.data.mcidas.PointDataAdapter;
050    import ucar.unidata.geoloc.LatLonPoint;
051    import ucar.unidata.geoloc.LatLonRect;
052    import edu.wisc.ssec.mcidas.adde.AddePointURL;
053    import ucar.visad.quantities.CommonUnits;
054    
055    
056    /**
057     * A data source for ADDE point data
058     *
059     * @author Don Murray
060     * @version $Revision: 1.4 $ $Date: 2012/02/19 17:35:40 $
061     */
062    public class AddePointDataSource extends ucar.unidata.data.point.AddePointDataSource {
063    
064        /** list of levels names */
065        private static String[] levelNames = {
066            "SFC", "1000", "925", "850", "700", "500", "400", "300", "250", "200",
067            "150", "100", "70", "50", "30", "20", "10"
068        };
069    
070        /** list of level values */
071        private static int[] levelValues = {
072            1001, 1000, 925, 850, 700, 500, 400, 300, 250, 200,
073            150, 100, 70, 50, 30, 20, 10
074        };
075    
076        /**
077         * Default constructor.
078         *
079         * @throws VisADException
080         */
081        public AddePointDataSource() throws VisADException {
082            super();
083        }
084    
085        /**
086         * Create a new <code>AddePointDataSource</code> from the parameters
087         * supplied.
088         *
089         * @param descriptor  <code>DataSourceDescriptor</code> for this.
090         * @param source      Source URL
091         * @param properties  <code>Hashtable</code> of properties for the source.
092         *
093         * @throws VisADException  couldn't create the VisAD data
094         */
095        public AddePointDataSource(DataSourceDescriptor descriptor,
096                                   String source, Hashtable properties)
097                throws VisADException {
098            super(descriptor, source, properties);
099        }
100    
101        /**
102         * Get the list of all levels available from this DataSource
103         *
104         *
105         * @param dataChoice The data choice we are getting levels for
106         * @return  List of all available levels
107         */
108        public List getAllLevels(DataChoice dataChoice, DataSelection dataSelection) {
109            return getLevels();
110        }
111    
112        /**
113         * Get the levels property
114         * @return levels;
115         */
116        private List getLevels() {
117            List levels = new ArrayList();
118            try {
119                    for (int i = 0; i < levelValues.length; i++) {
120                            levels.add(new TwoFacedObject(levelNames[i],
121                                            new Real(RealType.getRealType("Pressure",
122                                                            CommonUnits.MILLIBAR), levelValues[i],
123                                                            CommonUnits.MILLIBAR)));
124                    }
125            } catch (VisADException ve) {}
126            return levels;
127        }
128        
129    }
130