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18 package edu.internet2.middleware.shibboleth.common.log;
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20 import org.opensaml.util.resource.Resource;
21 import org.opensaml.util.resource.ResourceChangeListener;
22 import org.opensaml.util.resource.ResourceException;
23 import org.slf4j.LoggerFactory;
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25 import ch.qos.logback.classic.LoggerContext;
26 import ch.qos.logback.classic.joran.JoranConfigurator;
27 import ch.qos.logback.core.joran.spi.JoranException;
28 import ch.qos.logback.core.status.ErrorStatus;
29 import ch.qos.logback.core.status.InfoStatus;
30 import ch.qos.logback.core.status.StatusManager;
31 import ch.qos.logback.core.util.StatusPrinter;
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34 public class LogbackConfigurationChangeListener implements ResourceChangeListener {
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37 public void onResourceCreate(Resource resource) {
38 configureLogback(resource);
39 }
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42 public void onResourceDelete(Resource resource) {
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44 }
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47 public void onResourceUpdate(Resource resource) {
48 configureLogback(resource);
49 }
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56 protected void configureLogback(Resource configuration) {
57 LoggerContext loggerContext = (LoggerContext) LoggerFactory.getILoggerFactory();
58 StatusManager statusManager = loggerContext.getStatusManager();
59 statusManager.add(new InfoStatus("Loading logging configuration file: " + configuration.getLocation(), this));
60 try {
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62 loggerContext.reset();
63 JoranConfigurator configurator = new JoranConfigurator();
64 configurator.setContext(loggerContext);
65 configurator.doConfigure(configuration.getInputStream());
66 loggerContext.start();
67 } catch (JoranException e) {
68 statusManager.add(new ErrorStatus("Error loading logging configuration file: "
69 + configuration.getLocation(), this, e));
70 } catch (ResourceException e) {
71 statusManager.add(new ErrorStatus("Error loading logging configuration file: "
72 + configuration.getLocation(), this, e));
73 }
74 StatusPrinter.printInCaseOfErrorsOrWarnings(loggerContext);
75 }
76 }