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.

        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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            usage();
            System.exit(-1);
        }  
        
  LogManager logMan=LogManager.getLogManager();
  logMan.readConfiguration(Thread.currentThread().getClass().getResourceAsStream("/logging.properties"));
    
        ArrayList<Experiment> toDo = runList(args);
        String name = toDo.get(0).getExperimentName();
        ExperimentRunner runner = new ExperimentRunner();
        Logger.getLogger(RunFile.class.getName()).log(Level.INFO, String.format( "[%s] Starting clustering of %d files",name, toDo.size()));

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        final ClassLoader cl = getClass().getClassLoader();
        AccessController.doPrivileged(new PrivilegedAction() {
            public Object run () {
                try {
                    InputStream config = cl.getResourceAsStream(PROPERIES_FILE);
                    logManager.readConfiguration(config);
                    return null;
                }
                catch (IOException ex) {
                    throw new RuntimeException(
                        msg.msg("EXC_LoggerSetupIOException", //NOI18N

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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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            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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      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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