Examples of org.apache.commons.logging.LogConfigurationException

org.apache.commons.logging.LogConfigurationException

An exception that is thrown only if a suitable LogFactory or Log instance cannot be created by the corresponding factory methods.
@author Craig R. McClanahan

                      + discoveryFlaw.getClass().getName() + ": "
                      + discoveryFlaw.getLocalizedMessage(), discoveryFlaw);
        }


        if (!allowFlawedDiscovery) {
            throw new LogConfigurationException(discoveryFlaw);
        }
    }

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                msg.append(Log.class.getName());
                msg.append("' visible.");
                if (isDiagnosticsEnabled()) {
                    logDiagnostic(msg.toString());
                } 
                throw new LogConfigurationException(msg.toString());
            }
        
            if (isDiagnosticsEnabled()) {
                StringBuffer msg = new StringBuffer();
                msg.append("Warning: bad log hierarchy. ");
                msg.append("You have more than one version of '");
                msg.append(Log.class.getName());
                msg.append("' visible.");
                logDiagnostic(msg.toString());
            }
        } else {
            // this is just a bad adapter class
            if (!allowFlawedDiscovery) {
                StringBuffer msg = new StringBuffer();
                msg.append("Terminating logging for this context. ");
                msg.append("Log class '");
                msg.append(badClass.getName());
                msg.append("' does not implement the Log interface.");
                if (isDiagnosticsEnabled()) {
                    logDiagnostic(msg.toString());
                }
                
                throw new LogConfigurationException(msg.toString());
            }


            if (isDiagnosticsEnabled()) {
                StringBuffer msg = new StringBuffer();
                msg.append("[WARNING] Log class '");

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          if (e.getTargetException() instanceof SecurityException) {
            ; // ignore
          } else {
            // Capture 'e.getTargetException()' exception for details
            // alternate: log 'e.getTargetException()', and pass back 'e'.
            throw new LogConfigurationException(
                "Unexpected InvocationTargetException", e.getTargetException());
          }
        }
      } catch (NoSuchMethodException e) {
        // Assume we are running on JDK 1.1

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                    if (e.getTargetException() instanceof SecurityException) {
                        ;  // ignore
                    } else {
                        // Capture 'e.getTargetException()' exception for details
                        // alternate: log 'e.getTargetException()', and pass back 'e'.
                        throw new LogConfigurationException
                            ("Unexpected InvocationTargetException", e.getTargetException());
                    }
                }
            } catch (NoSuchMethodException e) {
                // Assume we are running on JDK 1.1

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                    if (e.getTargetException() instanceof SecurityException) {
                        ;  // ignore
                    } else {
                        // Capture 'e.getTargetException()' exception for details
                        // alternate: log 'e.getTargetException()', and pass back 'e'.
                        throw new LogConfigurationException
                            ("Unexpected InvocationTargetException", e.getTargetException());
                    }
                }
            } catch (NoSuchMethodException e) {
                // Assume we are running on JDK 1.1

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        try {
            logInterface = this.getClass().getClassLoader().loadClass
                (LOG_INTERFACE);
            logClass = loadClass(logClassName);
            if (logClass == null) {
                throw new LogConfigurationException
                    ("No suitable Log implementation for " + logClassName);
            }
            if (!logInterface.isAssignableFrom(logClass)) {
                Class interfaces[] = logClass.getInterfaces();
                for (int i = 0; i < interfaces.length; i++) {
                    if (LOG_INTERFACE.equals(interfaces[i].getName())) {
                        throw new LogConfigurationException
                            ("Invalid class loader hierarchy.  " +
                             "You have more than one version of '" +
                             LOG_INTERFACE + "' visible, which is " +
                             "not allowed.");
                    }
                }
                throw new LogConfigurationException
                    ("Class " + logClassName + " does not implement '" +
                     LOG_INTERFACE + "'.");
            }
        } catch (Throwable t) {
            throw new LogConfigurationException(t);
        }


        // Identify the <code>setLogFactory</code> method (if there is one)
        try {
            logMethod = logClass.getMethod("setLogFactory",
                                           logMethodSignature);
        } catch (Throwable t) {
            logMethod = null;
        }


        // Identify the corresponding constructor to be used
        try {
            logConstructor = logClass.getConstructor(logConstructorSignature);
            return (logConstructor);
        } catch (Throwable t) {
            throw new LogConfigurationException
                ("No suitable Log constructor " +
                 logConstructorSignature+ " for " + logClassName, t);
        }
    }

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            }
            return (instance);
        } catch (InvocationTargetException e) {
            Throwable c = e.getTargetException();
            if (c != null) {
                throw new LogConfigurationException(c);
            } else {
                throw new LogConfigurationException(e);
            }
        } catch (Throwable t) {
            throw new LogConfigurationException(t);
        }


    }

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