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