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/** |
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$Id$ |
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Copyright (C) 2010 Nicklas Nordborg |
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This file is part of BASE - BioArray Software Environment. |
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Available at http://base.thep.lu.se/ |
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BASE is free software; you can redistribute it and/or |
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modify it under the terms of the GNU General Public License |
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as published by the Free Software Foundation; either version 3 |
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of the License, or (at your option) any later version. |
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|
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BASE is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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GNU General Public License for more details. |
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You should have received a copy of the GNU General Public License |
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along with BASE. If not, see <http://www.gnu.org/licenses/>. |
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*/ |
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package net.sf.basedb.util.extensions; |
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import net.sf.basedb.util.Values; |
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/** |
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Exception handler factory implementation that logs error messages |
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using the default logging mechanism. This factory is it's own |
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error handler and the implementation is thread-safe (once the level |
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has been set). |
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@author Nicklas |
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@since 2.17 |
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@base.modified $Date$ |
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*/ |
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public class LoggingErrorHandlerFactory |
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implements ErrorHandlerFactory<Action>, ErrorHandler<Action> |
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{ |
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|
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private static final org.slf4j.Logger log = |
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org.slf4j.LoggerFactory.getLogger(LoggingErrorHandlerFactory.class); |
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|
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private Level level; |
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private boolean rememberLast; |
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/** |
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Create a new error-level loggin error handler factory. |
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*/ |
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public LoggingErrorHandlerFactory() |
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{ |
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this.level = Level.ERROR; |
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this.rememberLast = false; |
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} |
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|
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/** |
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Create a new custom-level logging error handler factory. |
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*/ |
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public LoggingErrorHandlerFactory(String level) |
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{ |
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setLevel(level); |
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} |
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|
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/* |
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From the ErrorHandlerFactory interface |
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-------------------------------------- |
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*/ |
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@Override |
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public ErrorHandler<Action> getErrorHandler(InvokationContext<? extends Action> context) |
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{ |
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return this; |
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} |
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// -------------------------------------- |
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|
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/* |
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From the ErrorHandler interface |
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-------------------------------------- |
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*/ |
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@Override |
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@SuppressWarnings({ "unchecked", "rawtypes" }) |
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public void handleError(InvokationContext<? extends Action> context, Action action, |
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String message, Throwable t) |
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{ |
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if (rememberLast) ((InvokationContext)context).setError(action, t); |
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level.log(log, message, t); |
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} |
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// -------------------------------------- |
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|
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/** |
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Set the level of the error handler. |
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*/ |
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public void setLevel(String level) |
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{ |
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try |
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{ |
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this.level = Level.valueOf(level); |
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} |
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catch (Exception ex) |
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{} |
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} |
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|
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/** |
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Set a flag indicating if errors should be remembered |
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by the registry. The last error for an extension or |
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extension point can be retreived by calling |
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{@link Registry#getLastExtensionError(String)} and/or |
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{@link Registry#getLastExtensionPointError(String)}. |
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@param remember A string that evaluates to a boolean |
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*/ |
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public void setRememberLast(String remember) |
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{ |
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this.rememberLast = Values.getBoolean(remember); |
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} |
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|
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/** |
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Log level implementations for slf4j. Use {@link Level#log(org.slf4j.Logger, String, Throwable)} |
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to log a message at the given level to the slf4j logger. |
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@since 3.3 |
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*/ |
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public static enum Level |
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{ |
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OFF |
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{ |
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@Override |
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public void log(org.slf4j.Logger logger, String message, Throwable t) |
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{} |
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}, |
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FATAL |
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{ |
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@Override |
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public void log(org.slf4j.Logger logger, String message, Throwable t) |
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{ |
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logger.error(message, t); |
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} |
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}, |
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ERROR |
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{ |
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@Override |
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public void log(org.slf4j.Logger logger, String message, Throwable t) |
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{ |
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logger.error(message, t); |
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} |
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}, |
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WARN |
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{ |
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@Override |
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public void log(org.slf4j.Logger logger, String message, Throwable t) |
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{ |
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logger.warn(message, t); |
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} |
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}, |
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INFO |
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{ |
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@Override |
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public void log(org.slf4j.Logger logger, String message, Throwable t) |
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{ |
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logger.info(message, t); |
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} |
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}, |
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DEBUG |
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{ |
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@Override |
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public void log(org.slf4j.Logger logger, String message, Throwable t) |
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{ |
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logger.debug(message, t); |
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} |
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}, |
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TRACE |
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{ |
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@Override |
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public void log(org.slf4j.Logger logger, String message, Throwable t) |
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{ |
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logger.trace(message, t); |
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} |
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}; |
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|
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public abstract void log(org.slf4j.Logger logger, String message, Throwable t); |
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|
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} |
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} |