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Merge pull request #96 from fbelzunc/daily-rotation
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src/main/java/hudson/plugins/audit_trail/AbstractLogFileAuditLogger.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,140 @@ | ||
| package hudson.plugins.audit_trail; | ||
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| import edu.umd.cs.findbugs.annotations.SuppressFBWarnings; | ||
| import hudson.EnvVars; | ||
| import hudson.Util; | ||
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| import javax.annotation.Nonnull; | ||
| import java.io.File; | ||
| import java.io.IOException; | ||
| import java.nio.file.NoSuchFileException; | ||
| import java.text.SimpleDateFormat; | ||
| import java.util.Date; | ||
| import java.util.Optional; | ||
| import java.util.logging.FileHandler; | ||
| import java.util.logging.Formatter; | ||
| import java.util.logging.Level; | ||
| import java.util.logging.LogRecord; | ||
| import java.util.logging.Logger; | ||
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| import static java.util.logging.Level.CONFIG; | ||
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| public abstract class AbstractLogFileAuditLogger extends AuditLogger { | ||
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| private static final Logger LOGGER = Logger.getLogger(AbstractLogFileAuditLogger.class.getName()); | ||
| static final String DEFAULT_LOG_SEPARATOR =" "; | ||
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| @Nonnull | ||
| private String logSeparator; | ||
| private String log; | ||
| private int count = 1; | ||
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| private transient FileHandler handler; | ||
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| public AbstractLogFileAuditLogger(String log, int count, String logSeparator) { | ||
| this.log = Util.replaceMacro(log, EnvVars.masterEnvVars); | ||
| this.count = count; | ||
| this.logSeparator = Optional.ofNullable(logSeparator).orElse(DEFAULT_LOG_SEPARATOR); | ||
| } | ||
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| @SuppressFBWarnings( | ||
| value = "RCN_REDUNDANT_NULLCHECK_OF_NONNULL_VALUE", | ||
| justification = "value can be null if no config file exists") | ||
| Object readResolve() { | ||
| if (logSeparator == null) { | ||
| logSeparator = DEFAULT_LOG_SEPARATOR; | ||
| } | ||
| return this; | ||
| } | ||
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| final void configure() { | ||
| // looks like https://bugs.java.com/bugdatabase/view_bug.do?bug_id=6244047 is somehow still there | ||
| // there is no way for us to know before hand what path we are looking to create as it would | ||
| // mean having access to FileHandler#generate so either reflexion or catching the exception and retrieving | ||
| // the path. Let's go with number 2. | ||
| try { | ||
| FileHandler h = null; | ||
| try { | ||
| h = getLogFileHandler(); | ||
| } catch (NoSuchFileException ex) { | ||
| LOGGER.info("Couldn't create the file handler lock file, forcing creation of intermediate directories"); | ||
| String lockFileName = ex.getFile(); | ||
| boolean mkdirs = new File(lockFileName).getParentFile().mkdirs(); | ||
| if (mkdirs) { | ||
| h = getLogFileHandler(); | ||
| } | ||
| } | ||
| if (h != null) { | ||
| h.setFormatter(new Formatter() { | ||
| SimpleDateFormat dateFormat = new SimpleDateFormat("MMM d, yyyy h:mm:ss,SSS aa"); | ||
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| @Override | ||
| public synchronized String format(LogRecord record) { | ||
| return dateFormat.format(new Date(record.getMillis())) + getLogSeparator() | ||
| + record.getMessage() + '\n'; | ||
| } | ||
| }); | ||
| h.setLevel(CONFIG); | ||
| handler = h; | ||
| } else { | ||
| LOGGER.severe("Couldn't configure the plugin, as the file handler wasn't successfully created. You should report this issue"); | ||
| } | ||
| } catch (IOException ex) { | ||
| LOGGER.log(Level.SEVERE, "Couldn't configure the plugin, you should report this issue", ex); | ||
| } | ||
| } | ||
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| @Override | ||
| public void log(String event) { | ||
| if (handler == null) return; | ||
| handler.publish(new LogRecord(CONFIG, event)); | ||
| } | ||
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| @Override | ||
| public void cleanUp() throws SecurityException { | ||
| if(handler != null) { | ||
| handler.close(); | ||
| } | ||
| } | ||
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| abstract FileHandler getLogFileHandler() throws IOException; | ||
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| @Nonnull | ||
| public String getLogSeparator() { | ||
| return logSeparator; | ||
| } | ||
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| public String getLog() { | ||
| return log; | ||
| } | ||
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| public int getCount() { | ||
| return count; | ||
| } | ||
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| public FileHandler getHandler() { | ||
| return handler; | ||
| } | ||
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| @Override | ||
| public boolean equals(Object o) { | ||
| if (this == o) return true; | ||
| if (o == null || getClass() != o.getClass()) return false; | ||
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| AbstractLogFileAuditLogger that = (AbstractLogFileAuditLogger) o; | ||
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| if (count != that.count) return false; | ||
| if (!logSeparator.equals(that.logSeparator)) return false; | ||
| if (log != null ? !log.equals(that.log) : that.log != null) return false; | ||
| return handler != null ? handler.equals(that.handler) : that.handler == null; | ||
| } | ||
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| @Override | ||
| public int hashCode() { | ||
| int result = logSeparator.hashCode(); | ||
| result = 31 * result + (log != null ? log.hashCode() : 0); | ||
| result = 31 * result + count; | ||
| result = 31 * result + (handler != null ? handler.hashCode() : 0); | ||
| return result; | ||
| } | ||
| } |
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