| | |
| | | package org.opends.server.loggers; |
| | | |
| | | import static org.opends.messages.ConfigMessages.*; |
| | | import static org.opends.server.loggers.debug.DebugLogger.*; |
| | | import static org.opends.server.util.StaticUtils.*; |
| | | |
| | | import java.util.ArrayList; |
| | | import java.util.List; |
| | | import java.util.concurrent.CopyOnWriteArrayList; |
| | | |
| | | import org.opends.messages.Message; |
| | | import org.opends.server.admin.ClassPropertyDefinition; |
| | | import org.opends.server.admin.server.ConfigurationAddListener; |
| | | import org.opends.server.admin.server.ConfigurationChangeListener; |
| | | import org.opends.server.admin.server.ConfigurationDeleteListener; |
| | | import org.opends.server.admin.std.meta.ErrorLogPublisherCfgDefn; |
| | | import org.opends.server.admin.std.server.ErrorLogPublisherCfg; |
| | | import org.opends.server.api.DirectoryThread; |
| | | import org.opends.server.api.ErrorLogPublisher; |
| | | import org.opends.server.backends.task.Task; |
| | | import org.opends.server.config.ConfigException; |
| | | import org.opends.server.core.DirectoryServer; |
| | | import org.opends.server.loggers.debug.DebugTracer; |
| | | import org.opends.server.types.ConfigChangeResult; |
| | | import org.opends.server.types.DN; |
| | | import org.opends.server.types.DebugLogLevel; |
| | | import org.opends.server.types.InitializationException; |
| | | import org.opends.server.types.ResultCode; |
| | | |
| | | /** |
| | | * This class defines the wrapper that will invoke all registered error loggers |
| | | * for each type of request received or response sent. If no error log |
| | | * publishers are registered, messages will be directed to standard out. |
| | | */ |
| | | public class ErrorLogger implements |
| | | ConfigurationAddListener<ErrorLogPublisherCfg>, |
| | | ConfigurationDeleteListener<ErrorLogPublisherCfg>, |
| | | ConfigurationChangeListener<ErrorLogPublisherCfg> |
| | | public class ErrorLogger extends AbstractLogger |
| | | <ErrorLogPublisher<ErrorLogPublisherCfg>, ErrorLogPublisherCfg> |
| | | { |
| | | /** |
| | | * The tracer object for the debug logger. |
| | | */ |
| | | private static final DebugTracer TRACER = getTracer(); |
| | | |
| | | // The set of error loggers that have been registered with the server. It |
| | | // will initially be empty. |
| | | private static CopyOnWriteArrayList<ErrorLogPublisher> errorPublishers = |
| | | new CopyOnWriteArrayList<ErrorLogPublisher>(); |
| | | private static LoggerStorage |
| | | <ErrorLogPublisher<ErrorLogPublisherCfg>, ErrorLogPublisherCfg> |
| | | loggerStorage = new LoggerStorage |
| | | <ErrorLogPublisher<ErrorLogPublisherCfg>, ErrorLogPublisherCfg>(); |
| | | |
| | | // The singleton instance of this class for configuration purposes. |
| | | /** The singleton instance of this class for configuration purposes. */ |
| | | private static final ErrorLogger instance = new ErrorLogger(); |
| | | |
| | | /** |
| | |
| | | } |
| | | |
| | | /** |
| | | * The constructor for this class. |
| | | */ |
| | | public ErrorLogger() |
| | | { |
| | | super((Class) ErrorLogPublisher.class, |
| | | ERR_CONFIG_LOGGER_INVALID_ERROR_LOGGER_CLASS); |
| | | } |
| | | |
| | | /** {@inheritDoc} */ |
| | | @Override |
| | | protected ClassPropertyDefinition getJavaClassPropertyDefinition() |
| | | { |
| | | return ErrorLogPublisherCfgDefn.getInstance() |
| | | .getJavaClassPropertyDefinition(); |
| | | } |
| | | |
| | | /** {@inheritDoc} */ |
| | | @Override |
| | | protected LoggerStorage<ErrorLogPublisher<ErrorLogPublisherCfg>, |
| | | ErrorLogPublisherCfg> getStorage() |
| | | { |
| | | return loggerStorage; |
| | | } |
| | | |
| | | /** |
| | | * Add an error log publisher to the error logger. |
| | | * |
| | | * @param publisher The error log publisher to add. |
| | |
| | | public synchronized static void addErrorLogPublisher( |
| | | ErrorLogPublisher publisher) |
| | | { |
| | | errorPublishers.add(publisher); |
| | | loggerStorage.addLogPublisher(publisher); |
| | | } |
| | | |
| | | /** |
| | |
| | | public synchronized static boolean removeErrorLogPublisher( |
| | | ErrorLogPublisher publisher) |
| | | { |
| | | boolean removed = errorPublishers.remove(publisher); |
| | | |
| | | if(removed) |
| | | { |
| | | publisher.close(); |
| | | } |
| | | |
| | | return removed; |
| | | return loggerStorage.removeLogPublisher(publisher); |
| | | } |
| | | |
| | | /** |
| | |
| | | */ |
| | | public synchronized static void removeAllErrorLogPublishers() |
| | | { |
| | | for(ErrorLogPublisher publisher : errorPublishers) |
| | | { |
| | | publisher.close(); |
| | | } |
| | | |
| | | errorPublishers.clear(); |
| | | loggerStorage.removeAllLogPublishers(); |
| | | } |
| | | |
| | | /** |
| | | * Initializes all the error log publishers. |
| | | * |
| | | * @param configs The error log publisher configurations. |
| | | * @throws ConfigException |
| | | * If an unrecoverable problem arises in the process of |
| | | * performing the initialization as a result of the server |
| | | * configuration. |
| | | * @throws InitializationException |
| | | * If a problem occurs during initialization that is not |
| | | * related to the server configuration. |
| | | */ |
| | | public void initializeErrorLogger(List<ErrorLogPublisherCfg> configs) |
| | | throws ConfigException, InitializationException |
| | | { |
| | | for(ErrorLogPublisherCfg config : configs) |
| | | { |
| | | config.addErrorChangeListener(this); |
| | | |
| | | if(config.isEnabled()) |
| | | { |
| | | ErrorLogPublisher errorLogPublisher = getErrorPublisher(config); |
| | | |
| | | addErrorLogPublisher(errorLogPublisher); |
| | | } |
| | | } |
| | | } |
| | | |
| | | /** |
| | | * {@inheritDoc} |
| | | */ |
| | | @Override |
| | | public boolean isConfigurationAddAcceptable(ErrorLogPublisherCfg config, |
| | | List<Message> unacceptableReasons) |
| | | { |
| | | return !config.isEnabled() || |
| | | isJavaClassAcceptable(config, unacceptableReasons); |
| | | } |
| | | |
| | | /** |
| | | * {@inheritDoc} |
| | | */ |
| | | @Override |
| | | public boolean isConfigurationChangeAcceptable( |
| | | ErrorLogPublisherCfg config, |
| | | List<Message> unacceptableReasons) |
| | | { |
| | | return !config.isEnabled() || |
| | | isJavaClassAcceptable(config, unacceptableReasons); |
| | | } |
| | | |
| | | /** |
| | | * {@inheritDoc} |
| | | */ |
| | | @Override |
| | | public ConfigChangeResult applyConfigurationAdd(ErrorLogPublisherCfg config) |
| | | { |
| | | // Default result code. |
| | | ResultCode resultCode = ResultCode.SUCCESS; |
| | | boolean adminActionRequired = false; |
| | | ArrayList<Message> messages = new ArrayList<Message>(); |
| | | |
| | | config.addErrorChangeListener(this); |
| | | |
| | | if(config.isEnabled()) |
| | | { |
| | | try |
| | | { |
| | | ErrorLogPublisher errorLogPublisher = getErrorPublisher(config); |
| | | |
| | | addErrorLogPublisher(errorLogPublisher); |
| | | } |
| | | catch(ConfigException e) |
| | | { |
| | | if (debugEnabled()) |
| | | { |
| | | TRACER.debugCaught(DebugLogLevel.ERROR, e); |
| | | } |
| | | messages.add(e.getMessageObject()); |
| | | resultCode = DirectoryServer.getServerErrorResultCode(); |
| | | } |
| | | catch (Exception e) |
| | | { |
| | | if (debugEnabled()) |
| | | { |
| | | TRACER.debugCaught(DebugLogLevel.ERROR, e); |
| | | } |
| | | messages.add(ERR_CONFIG_LOGGER_CANNOT_CREATE_LOGGER.get( |
| | | String.valueOf(config.dn().toString()), |
| | | stackTraceToSingleLineString(e))); |
| | | resultCode = DirectoryServer.getServerErrorResultCode(); |
| | | } |
| | | } |
| | | return new ConfigChangeResult(resultCode, adminActionRequired, messages); |
| | | } |
| | | |
| | | /** |
| | | * {@inheritDoc} |
| | | */ |
| | | @Override |
| | | public ConfigChangeResult applyConfigurationChange( |
| | | ErrorLogPublisherCfg config) |
| | | { |
| | | // Default result code. |
| | | ResultCode resultCode = ResultCode.SUCCESS; |
| | | boolean adminActionRequired = false; |
| | | ArrayList<Message> messages = new ArrayList<Message>(); |
| | | |
| | | DN dn = config.dn(); |
| | | |
| | | ErrorLogPublisher errorLogPublisher = null; |
| | | for(ErrorLogPublisher publisher : errorPublishers) |
| | | { |
| | | if(publisher.getDN().equals(dn)) |
| | | { |
| | | errorLogPublisher = publisher; |
| | | break; |
| | | } |
| | | } |
| | | |
| | | if(errorLogPublisher == null) |
| | | { |
| | | if(config.isEnabled()) |
| | | { |
| | | // Needs to be added and enabled. |
| | | return applyConfigurationAdd(config); |
| | | } |
| | | } |
| | | else |
| | | { |
| | | if(config.isEnabled()) |
| | | { |
| | | // The publisher is currently active, so we don't need to do anything. |
| | | // Changes to the class name cannot be |
| | | // applied dynamically, so if the class name did change then |
| | | // indicate that administrative action is required for that |
| | | // change to take effect. |
| | | String className = config.getJavaClass(); |
| | | if(!className.equals(errorLogPublisher.getClass().getName())) |
| | | { |
| | | adminActionRequired = true; |
| | | } |
| | | } |
| | | else |
| | | { |
| | | // The publisher is being disabled so shut down and remove. |
| | | removeErrorLogPublisher(errorLogPublisher); |
| | | } |
| | | } |
| | | |
| | | return new ConfigChangeResult(resultCode, adminActionRequired, messages); |
| | | } |
| | | |
| | | /** |
| | | * {@inheritDoc} |
| | | */ |
| | | @Override |
| | | public boolean isConfigurationDeleteAcceptable( |
| | | ErrorLogPublisherCfg config, |
| | | List<Message> unacceptableReasons) |
| | | { |
| | | DN dn = config.dn(); |
| | | |
| | | ErrorLogPublisher errorLogPublisher = null; |
| | | for(ErrorLogPublisher publisher : errorPublishers) |
| | | { |
| | | if(publisher.getDN().equals(dn)) |
| | | { |
| | | errorLogPublisher = publisher; |
| | | break; |
| | | } |
| | | } |
| | | |
| | | return errorLogPublisher != null; |
| | | } |
| | | |
| | | /** |
| | | * {@inheritDoc} |
| | | */ |
| | | @Override |
| | | public ConfigChangeResult applyConfigurationDelete( |
| | | ErrorLogPublisherCfg config) |
| | | { |
| | | // Default result code. |
| | | ResultCode resultCode = ResultCode.SUCCESS; |
| | | boolean adminActionRequired = false; |
| | | |
| | | ErrorLogPublisher errorLogPublisher = null; |
| | | for(ErrorLogPublisher publisher : errorPublishers) |
| | | { |
| | | if(publisher.getDN().equals(config.dn())) |
| | | { |
| | | errorLogPublisher = publisher; |
| | | break; |
| | | } |
| | | } |
| | | |
| | | if(errorLogPublisher != null) |
| | | { |
| | | removeErrorLogPublisher(errorLogPublisher); |
| | | } |
| | | else |
| | | { |
| | | resultCode = ResultCode.NO_SUCH_OBJECT; |
| | | } |
| | | |
| | | return new ConfigChangeResult(resultCode, adminActionRequired); |
| | | } |
| | | |
| | | private boolean isJavaClassAcceptable(ErrorLogPublisherCfg config, |
| | | List<Message> unacceptableReasons) |
| | | { |
| | | String className = config.getJavaClass(); |
| | | ErrorLogPublisherCfgDefn d = ErrorLogPublisherCfgDefn.getInstance(); |
| | | ClassPropertyDefinition pd = |
| | | d.getJavaClassPropertyDefinition(); |
| | | try { |
| | | // Load the class and cast it to a ErrorLogPublisher. |
| | | ErrorLogPublisher<ErrorLogPublisherCfg> publisher = |
| | | pd.loadClass(className, ErrorLogPublisher.class).newInstance(); |
| | | // The class is valid as far as we can tell. |
| | | return publisher.isConfigurationAcceptable(config, unacceptableReasons); |
| | | } catch (Exception e) { |
| | | Message message = ERR_CONFIG_LOGGER_INVALID_ERROR_LOGGER_CLASS.get( |
| | | className, |
| | | config.dn().toString(), |
| | | String.valueOf(e)); |
| | | unacceptableReasons.add(message); |
| | | return false; |
| | | } |
| | | } |
| | | |
| | | private ErrorLogPublisher getErrorPublisher(ErrorLogPublisherCfg config) |
| | | throws ConfigException { |
| | | String className = config.getJavaClass(); |
| | | ErrorLogPublisherCfgDefn d = ErrorLogPublisherCfgDefn.getInstance(); |
| | | ClassPropertyDefinition pd = |
| | | d.getJavaClassPropertyDefinition(); |
| | | try { |
| | | // Load the class and cast it to a ErrorLogPublisher. |
| | | ErrorLogPublisher<ErrorLogPublisherCfg> errorLogPublisher = |
| | | pd.loadClass(className, ErrorLogPublisher.class).newInstance(); |
| | | errorLogPublisher.initializeLogPublisher(config); |
| | | // The error publisher has been successfully initialized. |
| | | return errorLogPublisher; |
| | | } |
| | | catch (Exception e) |
| | | { |
| | | Message message = ERR_CONFIG_LOGGER_INVALID_ERROR_LOGGER_CLASS.get( |
| | | className, config.dn().toString(), String.valueOf(e)); |
| | | throw new ConfigException(message, e); |
| | | } |
| | | } |
| | | |
| | | |
| | | |
| | | /** |
| | | * Writes a message to the error log using the provided information. |
| | | * |
| | | * @param message The message to be logged. |
| | | */ |
| | | public static void logError(Message message) |
| | | { |
| | | for (ErrorLogPublisher publisher : errorPublishers) |
| | | for (ErrorLogPublisher publisher : loggerStorage.getLogPublishers()) |
| | | { |
| | | publisher.logError(message); |
| | | } |
| | |
| | | } |
| | | } |
| | | } |
| | | |