gov/nasa/worldwind/Configuration.java

   1 /*
   2 Copyright (C) 2001, 2006 United States Government
   3 as represented by the Administrator of the
   4 National Aeronautics and Space Administration.
   5 All Rights Reserved.
   6 */
   7 /**
   8  *
   9  @version $Id: Configuration.java 2915 2007-09-19 06:01:49Z tgaskins $
  10  @author Tom Gaskins
  11  */
  12 package gov.nasa.worldwind;
  13
  14 import gov.nasa.worldwind.avlist.AVKey;
  15 import gov.nasa.worldwind.awt.AWTInputHandler;
  16 import gov.nasa.worldwind.cache.*;
  17 import gov.nasa.worldwind.geom.Angle;
  18 import gov.nasa.worldwind.globes.Earth;
  19 import gov.nasa.worldwind.retrieve.BasicRetrievalService;
  20 import gov.nasa.worldwind.util.*;
  21 import gov.nasa.worldwind.view.BasicOrbitView;
  22
  23 import java.io.*;
  24 import java.util.Properties;
  25 import java.util.logging.Level;
  26
  27 public class Configuration // Singleton
  28 {
  29     private static final String DEFAULT_LOGGER_NAME = "gov.nasa.worldwind";
  30     private static final String CONFIG_FILE_NAME = "config/worldwind.properties";
  31     private static final String CONFIG_FILE_PROPERTY_KEY = "gov.nasa.worldwind.config.file";
  32
  33     private static Configuration ourInstance = new Configuration();
  34
  35     private static Configuration getInstance()
  36     {
  37         return ourInstance;
  38     }
  39
  40     private final Properties properties;
  41
  42     private Configuration()
  43     {
  44         this.properties = new Properties(initializeDefaults());
  45         this.initializeCustom();
  46     }
  47
  48     private Properties initializeDefaults()
  49     {
  50         Properties defaults = new Properties();
  51         defaults.setProperty(AVKey.LOGGER_NAME, "gov.nasa.worldwind");
  52         defaults.setProperty(AVKey.DATA_FILE_CACHE_CONFIGURATION_FILE_NAME, "config/DataFileCache.xml");
  53         defaults.setProperty(AVKey.DATA_FILE_CACHE_CLASS_NAME, BasicDataFileCache.class.getName());
  54         defaults.setProperty(AVKey.GLOBE_CLASS_NAME, Earth.class.getName());
  55         defaults.setProperty(AVKey.INPUT_HANDLER_CLASS_NAME, AWTInputHandler.class.getName());
  56         defaults.setProperty(AVKey.MEMORY_CACHE_SET_CLASS_NAME, BasicMemoryCacheSet.class.getName());
  57         defaults.setProperty(AVKey.WORLD_WINDOW_CLASS_NAME, WorldWindowGLAutoDrawable.class.getName());
  58         defaults.setProperty(AVKey.MODEL_CLASS_NAME, BasicModel.class.getName());
  59         defaults.setProperty(AVKey.RETRIEVAL_SERVICE_CLASS_NAME, BasicRetrievalService.class.getName());
  60         defaults.setProperty(AVKey.SCENE_CONTROLLER_CLASS_NAME, BasicSceneController.class.getName());
  61         defaults.setProperty(AVKey.TASK_SERVICE_CLASS_NAME, ThreadedTaskService.class.getName());
  62         defaults.setProperty(AVKey.VIEW_CLASS_NAME, BasicOrbitView.class.getName());
  63         defaults.setProperty(AVKey.LAYERS_CLASS_NAMES,
  64             gov.nasa.worldwind.layers.Earth.StarsLayer.class.getName()
  65                 + "," + gov.nasa.worldwind.layers.Earth.BMNGSurfaceLayer.class.getName()
  66                 + "," + gov.nasa.worldwind.layers.Earth.LandsatI3.class.getName()
  67                 + "," + gov.nasa.worldwind.layers.Earth.USGSUrbanAreaOrtho.class.getName()
  68                 + "," + gov.nasa.worldwind.layers.Earth.EarthNASAPlaceNameLayer.class.getName()
  69                 + "," + gov.nasa.worldwind.layers.CompassLayer.class.getName()
  70         );
  71         defaults.setProperty(AVKey.BMNG_ONE_IMAGE_PATH, "images/BMNG_world.topo.bathy.200405.3.2048x1024.jpg");
  72
  73         java.util.TimeZone tz = java.util.Calendar.getInstance().getTimeZone();
  74         if (tz != null)
  75             defaults.setProperty(AVKey.INITIAL_LONGITUDE,
  76                 Double.toString(
  77                     Angle.fromDegrees(180.0 * tz.getOffset(System.currentTimeMillis()) / (12.0 * 3.6e6)).degrees));
  78         return defaults;
  79     }
  80
  81     private void initializeCustom()
  82     {
  83         String configFileName = System.getProperty(CONFIG_FILE_PROPERTY_KEY, CONFIG_FILE_NAME);
  84         try
  85         {
  86             InputStream propsStream = this.getClass().getResourceAsStream("/" + configFileName);
  87             if (propsStream == null)
  88             {
  89                 File propsFile = new File(configFileName);
  90                 if (propsFile.exists())
  91                     propsStream = new FileInputStream(propsFile);
  92                 else
  93                     Logging.logger().log(Level.WARNING, "Configuration.UnavailablePropsFile", configFileName);
  94             }
  95
  96             if (propsStream != null)
  97                 this.properties.load(propsStream);
  98         }
  99         // Use a named logger in all the catch statements below to prevent Logger from calling back into
 100         // Configuration when this Configuration instance is not yet fully instantiated.
 101         catch (FileNotFoundException e)
 102         {
 103             Logging.logger(DEFAULT_LOGGER_NAME).log(Level.WARNING, "Configuration.UnavailablePropsFile",
 104                 configFileName);
 105         }
 106         catch (IOException e)
 107         {
 108             Logging.logger(DEFAULT_LOGGER_NAME).log(Level.SEVERE, "Configuration.ExceptionReadingPropsFile", e);
 109         }
 110         catch (Exception e)
 111         {
 112             Logging.logger(DEFAULT_LOGGER_NAME).log(Level.SEVERE, "Configuration.ExceptionReadingPropsFile", e);
 113         }
 114     }
 115
 116     public static synchronized String getStringValue(String key, String defaultValue)
 117     {
 118         String v = getStringValue(key);
 119         return v != null ? v : defaultValue;
 120     }
 121
 122     public static synchronized String getStringValue(String key)
 123     {
 124         return getInstance().properties.getProperty(key);
 125     }
 126
 127     public static synchronized Integer getIntegerValue(String key, Integer defaultValue)
 128     {
 129         Integer v = getIntegerValue(key);
 130         return v != null ? v : defaultValue;
 131     }
 132
 133     public static synchronized Integer getIntegerValue(String key)
 134     {
 135         String v = getStringValue(key);
 136         if (v == null)
 137             return null;
 138
 139         try
 140         {
 141             return Integer.parseInt(v);
 142         }
 143         catch (NumberFormatException e)
 144         {
 145             Logging.logger().log(Level.SEVERE, "Configuration.ConversionError", v);
 146             return null;
 147         }
 148     }
 149
 150     public static synchronized Long getLongValue(String key, Long defaultValue)
 151     {
 152         Long v = getLongValue(key);
 153         return v != null ? v : defaultValue;
 154     }
 155
 156     public static synchronized Long getLongValue(String key)
 157     {
 158         String v = getStringValue(key);
 159         if (v == null)
 160             return null;
 161
 162         try
 163         {
 164             return Long.parseLong(v);
 165         }
 166         catch (NumberFormatException e)
 167         {
 168             Logging.logger().log(Level.SEVERE, "Configuration.ConversionError", v);
 169             return null;
 170         }
 171     }
 172
 173     public static synchronized Double getDoubleValue(String key, Double defaultValue)
 174     {
 175         Double v = getDoubleValue(key);
 176         return v != null ? v : defaultValue;
 177     }
 178
 179     public static synchronized Double getDoubleValue(String key)
 180     {
 181         String v = getStringValue(key);
 182         if (v == null)
 183             return null;
 184
 185         try
 186         {
 187             return Double.parseDouble(v);
 188         }
 189         catch (NumberFormatException e)
 190         {
 191             Logging.logger().log(Level.SEVERE, "Configuration.ConversionError", v);
 192             return null;
 193         }
 194     }
 195
 196     public static synchronized boolean hasKey(String key)
 197     {
 198         return getInstance().properties.contains(key);
 199     }
 200
 201     public static synchronized void removeKey(String key)
 202     {
 203         getInstance().properties.remove(key);
 204     }
 205
 206     public static synchronized void setValue(String key, Object value)
 207     {
 208         getInstance().properties.put(key, value.toString());
 209     }
 210
 211     // OS, user, and run-time specific system properties. //
 212
 213     public static String currentWorkingDirectory()
 214     {
 215         String dir = System.getProperty("user.dir");
 216         return (dir != null) ? dir : ".";
 217     }
 218
 219     public static String getUserHomeDirectory()
 220     {
 221         String dir = System.getProperty("user.home");
 222         return (dir != null) ? dir : ".";
 223     }
 224
 225     public static String systemTempDirectory()
 226     {
 227         String dir = System.getProperty("java.io.tmpdir");
 228         return (dir != null) ? dir : ".";
 229     }
 230
 231     public static boolean isMacOS()
 232     {
 233         String osName = System.getProperty("os.name");
 234         return osName != null && osName.toLowerCase().contains("mac");
 235     }
 236
 237     public static boolean isWindowsOS()
 238     {
 239         String osName = System.getProperty("os.name");
 240         return osName != null && osName.toLowerCase().contains("windows");
 241     }
 242
 243     public static boolean isLinuxOS()
 244     {
 245         String osName = System.getProperty("os.name");
 246         return osName != null && osName.toLowerCase().contains("linux");
 247     }
 248
 249     public static boolean isUnixOS()
 250     {
 251         String osName = System.getProperty("os.name");
 252         return osName != null && osName.toLowerCase().contains("unix");
 253     }
 254
 255     public static boolean isSolarisOS()
 256     {
 257         String osName = System.getProperty("os.name");
 258         return osName != null && osName.toLowerCase().contains("solaris");
 259     }
 260 }