git.gag.com Git - debian/openrocket/blob - src/net/sf/openrocket/startup/Application.java

   1 package net.sf.openrocket.startup;
   2
   3 import net.sf.openrocket.database.ThrustCurveMotorSetDatabase;
   4 import net.sf.openrocket.l10n.ClassBasedTranslator;
   5 import net.sf.openrocket.l10n.DebugTranslator;
   6 import net.sf.openrocket.l10n.ExceptionSuppressingTranslator;
   7 import net.sf.openrocket.l10n.Translator;
   8 import net.sf.openrocket.logging.LogHelper;
   9 import net.sf.openrocket.logging.LogLevel;
  10 import net.sf.openrocket.logging.LogLevelBufferLogger;
  11 import net.sf.openrocket.logging.PrintStreamLogger;
  12
  13 /**
  14  * A class that provides singleton instances / beans for other classes to utilize.
  15  *
  16  * @author Sampo Niskanen <sampo.niskanen@iki.fi>
  17  */
  18 public final class Application {
  19
  20         private static LogHelper logger;
  21         private static LogLevelBufferLogger logBuffer;
  22
  23         private static Translator baseTranslator = new DebugTranslator(null);
  24
  25         private static ThrustCurveMotorSetDatabase motorSetDatabase;
  26
  27
  28         // Initialize the logger to something sane for testing without executing Startup
  29         static {
  30                 setLogOutputLevel(LogLevel.DEBUG);
  31         }
  32
  33
  34         /**
  35          * Retrieve the logger to be used in logging.  By default this returns
  36          * a logger that outputs to stdout/stderr even if not separately initialized,
  37          * useful for development and debugging.
  38          */
  39         public static LogHelper getLogger() {
  40                 return logger;
  41         }
  42
  43         /**
  44          * Set the logger to be used in logging.  Note that calling this will only have effect
  45          * on not-yet loaded classes, as the instance is stored in a static variable.
  46          */
  47         public static void setLogger(LogHelper logger) {
  48                 Application.logger = logger;
  49         }
  50
  51
  52
  53         /**
  54          * Return the log buffer.
  55          *
  56          * @return the logBuffer or null if not initialized
  57          */
  58         public static LogLevelBufferLogger getLogBuffer() {
  59                 return logBuffer;
  60         }
  61
  62         /**
  63          * Set the log buffer logger.  The logger must be separately configured
  64          * to receive the logging.
  65          */
  66         public static void setLogBuffer(LogLevelBufferLogger logBuffer) {
  67                 Application.logBuffer = logBuffer;
  68         }
  69
  70
  71         /**
  72          * Set the logging to output the specified log level and upwards to standard output.
  73          *
  74          * @param level         the minimum logging level to output.
  75          */
  76         public static void setLogOutputLevel(LogLevel level) {
  77                 logger = new PrintStreamLogger();
  78                 for (LogLevel l : LogLevel.values()) {
  79                         if (l.atLeast(level)) {
  80                                 ((PrintStreamLogger) logger).setOutput(l, System.out);
  81                         }
  82                 }
  83
  84         }
  85
  86
  87         /**
  88          * Return the translator to use for obtaining translated strings.
  89          * @return      a translator.
  90          */
  91         public static Translator getTranslator() {
  92                 Translator t = baseTranslator;
  93                 t = new ClassBasedTranslator(t, 1);
  94                 t = new ExceptionSuppressingTranslator(t);
  95                 return t;
  96         }
  97
  98         /**
  99          * Set the translator used in obtaining translated strings.
 100          * @param translator    the translator to set.
 101          */
 102         public static void setBaseTranslator(Translator translator) {
 103                 Application.baseTranslator = translator;
 104         }
 105
 106
 107
 108         /**
 109          * Return the database of all thrust curves loaded into the system.
 110          */
 111         public static ThrustCurveMotorSetDatabase getMotorSetDatabase() {
 112                 return motorSetDatabase;
 113         }
 114
 115         /**
 116          * Set the database of thrust curves loaded into the system.
 117          */
 118         public static void setMotorSetDatabase(ThrustCurveMotorSetDatabase motorSetDatabase) {
 119                 Application.motorSetDatabase = motorSetDatabase;
 120         }
 121
 122
 123 }