Examples of java.util.logging.ErrorManager

java.util.logging.ErrorManager
ErrorManager objects can be attached to Handlers to process any error that occur on a Handler during Logging.
When processing logging output, if a Handler encounters problems then rather than throwing an Exception back to the issuer of the logging call (who is unlikely to be interested) the Handler should call its associated ErrorManager.

                            subscription.getNotificationListener(),
                            subscription.getNotificationFilter(), null );
                }
            }
        } catch( Exception e ) {
             new ErrorManager().error( "Error In " +
                  " MBeanServerRegistrationEventListener  ", e,
                  ErrorManager.GENERIC_FAILURE );
        }
    }

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                    if ( ( methodName.startsWith( "set" ) )
                       && ( methodName.endsWith( propertyName ) ) )
                    {
                        Class[] parameterTypes = methods[j].getParameterTypes( );
                        if( parameterTypes.length != 1 ) {
                            new ErrorManager().error(
                                "Only one Parameter is allowed for the setter " +
                                " Method: " + methodName +
                                " has invalid signature", new Exception(),
                                ErrorManager.GENERIC_FAILURE );
                        }
                                                                                     
                        String parameterType = parameterTypes[0].getName();
                        Object[] parameters = new Object[1];
                                                                                     
                        if( parameterType.equals( "java.lang.String") ) {
                            parameters[0] = propertyValue;
                        } else if( parameterType.equals( "byte" ) ) {
                            parameters[0] =
                                new Byte( propertyValue.getBytes()[0]);
                        } else if( parameterType.equals( "int" ) ) {
                            parameters[0] = new Integer(propertyValue);
                        } else if( parameterType.equals( "float" ) ) {
                            parameters[0] = new Float(propertyValue);
                        } else if( parameterType.equals( "double") ) {
                            parameters[0] = new Double(propertyValue);
                        } else if( parameterType.equals( "char" ) ) {
                            parameters[0] =
                                new Character(propertyValue.charAt(0));
                        } else if( parameterType.equals("boolean") ) {
                            parameters[0] = new Boolean(propertyValue);
                        } else if( parameterType.equals("long") ) {
                            parameters[0] = new Long(propertyValue);
                        } else if( parameterType.equals("short") ) {
                             parameters[0] = new Short(propertyValue);
                        } else {
                            new ErrorManager().error(
                                "Only the basic primitive types can be set " +
                                "as properties to NotificationListener and " +
                                " NotificationFilter ", new Exception(),
                                ErrorManager.GENERIC_FAILURE );
                            continue;
                        }
                        methods[j].invoke( o,  parameters );
                    }
                }
            }
        } catch( Exception e ) {
            new ErrorManager().error(
                "Error While Setting properties to Notification Listener or " +
                " Filter ", e, ErrorManager.GENERIC_FAILURE );
        }
    }

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                        }
                    }
                }            
            }
        } catch ( Exception e ) {
            new ErrorManager().error( "Error In Setting Initial Loglevel", e,
                ErrorManager.GENERIC_FAILURE );
        }        
        return null;
    }

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                // module log level change.
                LogMBean.getInstance().setLogLevelForModule(
                    event.getModuleName(), event.getNewLogLevel() );
            }
        } catch( Exception e ) {
            new ErrorManager().error( "Error In LogLevelChanged event", e,
                ErrorManager.GENERIC_FAILURE );
        }
    }

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            // Now Try to register the LogMBean
            //new RegisterLogMBean( this ).start( );


        } catch( Exception e ) {
            new ErrorManager().error(
                "Error in LogMBean Initialization", e,
                ErrorManager.GENERIC_FAILURE );
        }
            
       return mBeanInfo;

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                } else {
                    buf.append(obj.toString()).append(NVPAIR_SEPARATOR);
                }
            }
        } catch (Exception e) {
            new ErrorManager().error("Error in extracting Name Value Pairs", e,
                ErrorManager.FORMAT_FAILURE);
        }
    }

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            recordBuffer.append(RECORD_END_MARKER);


            return recordBuffer.toString();
        } catch (Exception ex) {
            new ErrorManager().error("Error in formatting Logrecord", ex,
                ErrorManager.FORMAT_FAILURE);


            // We've already notified the exception, the following
            // return is to keep javac happy
            return new String("");

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                openFile( fileName );
                // Change the file for LogViewer
                LogFilter.setLogFile( new LogFile( fileName ) ); 
                absoluteFileName = fileName;
            } catch( IOException ix ) {
                new ErrorManager().error( 
                    "FATAL ERROR: COULD NOT OPEN LOG FILE. " +
                    "Please Check to make sure that the directory for " +
                    "Logfile exists. Currently reverting back to use the " +
                    " default server.log", ix, ErrorManager.OPEN_FAILURE );
                try {
                    // Reverting back to the old server.log
                    openFile( absoluteFileName );
                } catch( Exception e ) {
                    new ErrorManager().error( 
                        "FATAL ERROR: COULD NOT RE-OPEN SERVER LOG FILE. ", e,
                        ErrorManager.OPEN_FAILURE ); 
                }
            }
        }

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    synchronized void setLimitForRotation( int rotationLimitInBytes ) {
        if ((rotationLimitInBytes == 0) ||
          (rotationLimitInBytes >= MINIMUM_FILE_ROTATION_VALUE )) {
            limitForFileRotation = rotationLimitInBytes;
        }else{
            new ErrorManager().error(
                "WARNING: Log Rotation Size Limits > 0 KB and < 500 KB default to 500 KB.",
                null,ErrorManager.GENERIC_FAILURE );
            limitForFileRotation = MINIMUM_FILE_ROTATION_VALUE;
        }        
    }

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                setFormatter( new UniformLogFormatter( ) );
            else {
                setFormatter( new CustomLogFormatter( ) );
            }
        } catch( Exception e ) {
            new ErrorManager().error( 
                "FATAL ERROR: COULD NOT INSTANTIATE FILE AND SYSLOG HANDLER", 
                e, ErrorManager.GENERIC_FAILURE );
        }
    }

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