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.

        {
            final InputStream url =
                this.getClass().getClassLoader().getResourceAsStream(RESOURCE_LOGGING_PROPERTIES);
            try
            {
                lm.readConfiguration(url);
            } catch (IOException e)
            {
                System.err.println(Strings.error("logging.unable.to.use.production.configuration"));
                e.printStackTrace();
            }

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                consoleHandler.setFormatter(
                    new BasicTextJdkLogFormatter(false));
                consoleHandler.setLevel(Level.INFO);
                istream = FrameworkLogger.class.getResourceAsStream(path);
                lm.readConfiguration(istream);


                Logger cmdlineLogger = Logger.getLogger("org.hsqldb.cmdline");


                cmdlineLogger.addHandler(consoleHandler);
                cmdlineLogger.setUseParentHandlers(false);

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                cmdlineLogger.setUseParentHandlers(false);
            } else {


                // Do not intervene.  Use JDK logging exactly as configured
                // by user.
                lm.readConfiguration();


                // The only bad thing about doing this is that if the app
                // has programmatically changed the logging config after
                // starting the program but before using FrameworkLogger,
                // we will clobber those customizations.

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        LogManager lm = LogManager.getLogManager();
        InputStream ins = JAXRSLoggingAtomPushTest.class.getResourceAsStream(propFile);
        String s = IOUtils.readStringFromStream(ins);
        ins.close();
        s = s.replaceAll("9080", PORT);
        lm.readConfiguration(new ByteArrayInputStream(s.getBytes("UTF-8")));
    }


    private static void logSixEvents(Logger log) {
        log.severe("severe message");
        log.warning("warning message");

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            server.destroy();
        }
        LogManager lm = LogManager.getLogManager();
        try {
            // restoring original configuration to not use tested logging handlers
            lm.readConfiguration();
        } catch (Exception e) {
            // ignore missing config file
        }
    }

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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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            props.put("testConfigClass.foo.level", "OFF");
            props.put("testConfigClass.foo.handlers", "java.util.logging.ConsoleHandler");        
            props.put(".level", "FINEST");
            props.remove("handlers");
            InputStream in = EnvironmentHelper.PropertiesToInputStream(props);
            man.readConfiguration(in);
        }
    }
    
  public static class MockInvalidInitClass {
    public MockInvalidInitClass() {

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      checkPropertyNull(manager);
      assertEquals(0, root.getHandlers().length);
      assertEquals(Level.INFO, root.getLevel());


      try {
        manager.readConfiguration();
      } catch (Exception e) {
        e.printStackTrace();
      }
      checkProperty(manager);
      assertNull(root.getHandlers()[0].getLevel());

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

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      assertEquals(2, root.getHandlers().length);
      assertEquals(root.getHandlers()[0].getLevel(), Level.OFF);
      assertEquals(Level.ALL, root.getLevel());


      try {
        manager.readConfiguration();
      } catch (Exception e) {
        e.printStackTrace();
      }
      checkPropertyNull(manager);
      assertEquals(root.getHandlers()[0].getLevel(), Level.OFF);

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