Examples of java.util.logging.LogManager.readConfiguration()

java.util.logging.LogManager.readConfiguration()
Reinitialize the logging properties and reread the logging configuration.
The same rules are used for locating the configuration properties as are used at startup. So normally the logging properties will be re-read from the same file that was used at startup.
Any log level definitions in the new configuration file will be applied using Logger.setLevel(), if the target Logger exists.
A PropertyChangeEvent will be fired after the properties are read. @exception SecurityException if a security manager exists and ifthe caller does not have LoggingPermission("control"). @exception IOException if there are IO problems reading the configuration.

      manager.reset();
      checkPropertyNull(manager);
      assertEquals(0, root.getHandlers().length);
      assertEquals(Level.INFO, root.getLevel());
      try {
        manager.readConfiguration();
      } catch (Exception e) {
        e.printStackTrace();
      }
    }
  }

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      checkPropertyNull(manager);
      assertEquals(1, root.getHandlers().length);
      assertEquals(Level.OFF, root.getLevel());


      try {
        manager.readConfiguration();
      } catch (Exception e) {
        e.printStackTrace();
      }
      checkPropertyNull(manager);
      assertEquals(1, root.getHandlers().length);

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      checkPropertyNull(manager);
      assertEquals(1, root.getHandlers().length);
      assertEquals(Level.OFF, root.getLevel());


      try {
        manager.readConfiguration();
      } catch (Exception e) {
        e.printStackTrace();
      }
      checkPropertyNull(manager);
      assertEquals(1, root.getHandlers().length);

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      manager.reset();
      checkPropertyNull(manager);
      assertEquals(0, root.getHandlers().length);
      assertEquals(Level.INFO, root.getLevel());
      try {
        manager.readConfiguration();
      } catch (Exception e) {
        e.printStackTrace();
      }
    }
  }

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      p.put(".level", "OFF");
      InputStream in = null;
      try {
        in = EnvironmentHelper.PropertiesToInputStream(p);
        LogManager manager = LogManager.getLogManager();
        manager.readConfiguration(in);
      } catch (Exception e) {
        e.printStackTrace();
      } finally {
        try {
          in.close();

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     * test initHandler
     */
    public void test_initHandler() throws Exception {
        File logProps = new File(LOGGING_CONFIG_FILE);
        LogManager lm = LogManager.getLogManager();
        lm.readConfiguration(new FileInputStream(logProps));


        Logger log = Logger.getLogger("");
        // can log properly
        Handler[] handlers = log.getHandlers();
        assertEquals(2, handlers.length);

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      // Try the current class loader if system one cannot find the file
      if (ins == null) {
      ins = this.getClass().getClassLoader().getResourceAsStream(loggerPropertiesFileName);
      }
      if (ins != null) {
      logManager.readConfiguration(ins);
      } else {
      System.out.println("WARNING: failed to load "+loggerPropertiesFileName);
      }
    } catch (SecurityException e) {
      handleException(e);

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  }
  
  public static void main(String[] args) {
    LogManager lm=LogManager.getLogManager();
    try {
      lm.readConfiguration(Thread.currentThread().getContextClassLoader().getResourceAsStream("log.properties"));
    } catch (IOException ex) {
      System.err.println("failed to configure logging");
    }
    log.info("Starting...");
    Trackbase tb=new Trackbase();

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      // Try the current class loader if system one cannot find the file
      if (ins == null) {
      ins = this.getClass().getClassLoader().getResourceAsStream(loggerPropertiesFileName);
      }
      if (ins != null) {
      logManager.readConfiguration(ins);
      } else {
      System.out.println("WARNING: failed to load "+loggerPropertiesFileName);
      }
    } catch (SecurityException e) {
      handleException(e);

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            if (haveLoadedOurDefault || isDefaultJdkConfig()) {
                haveLoadedOurDefault = true;
                consoleHandler.setFormatter(
                        new BasicTextJdkLogFormatter(false));
                consoleHandler.setLevel(Level.INFO);
                lm.readConfiguration(
                        FrameworkLogger.class.getResourceAsStream(
                        "/org/hsqldb/resources/jdklogging-default.properties"));
                Logger cmdlineLogger = Logger.getLogger("org.hsqldb.cmdline");
                cmdlineLogger.addHandler(consoleHandler);
                cmdlineLogger.setUseParentHandlers(false);

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