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@@ -0,0 +1,149 @@
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+package org.cryptomator.logging;
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+
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+import ch.qos.logback.classic.Level;
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+import ch.qos.logback.classic.Logger;
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+import ch.qos.logback.classic.LoggerContext;
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+import ch.qos.logback.classic.encoder.PatternLayoutEncoder;
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+import ch.qos.logback.classic.spi.ILoggingEvent;
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+import ch.qos.logback.core.Appender;
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+import ch.qos.logback.core.ConsoleAppender;
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+import ch.qos.logback.core.FileAppender;
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+import ch.qos.logback.core.helpers.NOPAppender;
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+import ch.qos.logback.core.hook.DelayingShutdownHook;
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+import ch.qos.logback.core.rolling.FixedWindowRollingPolicy;
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+import ch.qos.logback.core.rolling.RollingFileAppender;
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+import ch.qos.logback.core.util.Duration;
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+import dagger.Module;
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+import dagger.Provides;
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+import org.cryptomator.common.Environment;
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+import org.slf4j.ILoggerFactory;
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+import org.slf4j.LoggerFactory;
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+
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+import javax.inject.Named;
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+import javax.inject.Singleton;
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+import java.nio.file.Path;
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+
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+@Module
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+public class LoggerModule {
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+
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+ private static final String UPGRADE_FILENAME = "upgrade.log";
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+ private static final String LOGFILE_NAME = "cryptomator0.log";
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+ private static final String LOGFILE_ROLLING_PATTERN = "cryptomator%i.log";
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+ private static final int LOGFILE_ROLLING_MIN = 1;
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+ private static final int LOGFILE_ROLLING_MAX = 9;
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+ private static final double SHUTDOWN_DELAY_MS = 100;
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+ private static final Level ROOT_LOG_LEVEL = Level.INFO;
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+ private static final String LOG_PATTERN = "%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n";
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+
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+ @Provides
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+ @Singleton
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+ LoggerContext provideLoggerContext() {
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+ ILoggerFactory loggerFactory = LoggerFactory.getILoggerFactory();
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+ if (loggerFactory instanceof LoggerContext) {
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+ return (LoggerContext) loggerFactory;
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+ } else {
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+ throw new IllegalStateException("SLF4J not bound to Logback.");
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+ }
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+ }
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+
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+ @Provides
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+ @Singleton
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+ PatternLayoutEncoder provideLayoutEncoder(LoggerContext context) {
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+ PatternLayoutEncoder ple = new PatternLayoutEncoder();
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+ ple.setPattern(LOG_PATTERN);
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+ ple.setContext(context);
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+ ple.start();
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+ return ple;
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+ }
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+
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+ @Provides
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+ @Singleton
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+ @Named("stdoutAppender")
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+ Appender<ILoggingEvent> provideStdoutAppender(LoggerContext context, PatternLayoutEncoder encoder) {
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+ ConsoleAppender<ILoggingEvent> appender = new ConsoleAppender<>();
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+ appender.setContext(context);
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+ appender.setEncoder(encoder);
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+ appender.start();
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+ return appender;
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+ }
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+
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+ @Provides
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+ @Singleton
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+ @Named("fileAppender")
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+ Appender<ILoggingEvent> provideFileAppender(LoggerContext context, PatternLayoutEncoder encoder, Environment environment) {
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+ if (environment.getLogDir().isPresent()) {
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+ Path logDir = environment.getLogDir().get();
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+ RollingFileAppender<ILoggingEvent> appender = new RollingFileAppender<>();
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+ appender.setContext(context);
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+ appender.setFile(logDir.resolve(LOGFILE_NAME).toString());
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+ appender.setEncoder(encoder);
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+ LaunchBasedTriggeringPolicy triggeringPolicy = new LaunchBasedTriggeringPolicy();
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+ triggeringPolicy.setContext(context);
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+ triggeringPolicy.start();
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+ appender.setTriggeringPolicy(triggeringPolicy);
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+ FixedWindowRollingPolicy rollingPolicy = new FixedWindowRollingPolicy();
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+ rollingPolicy.setContext(context);
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+ rollingPolicy.setFileNamePattern(logDir.resolve(LOGFILE_ROLLING_PATTERN).toString());
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+ rollingPolicy.setMinIndex(LOGFILE_ROLLING_MIN);
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+ rollingPolicy.setMaxIndex(LOGFILE_ROLLING_MAX);
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+ rollingPolicy.setParent(appender);
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+ rollingPolicy.start();
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+ appender.setRollingPolicy(rollingPolicy);
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+ appender.start();
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+ return appender;
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+ } else {
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+ NOPAppender appender = new NOPAppender<>();
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+ appender.setContext(context);
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+ return appender;
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+ }
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+ }
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+
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+ @Provides
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+ @Singleton
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+ @Named("upgradeAppender")
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+ Appender<ILoggingEvent> provideUpgradeAppender(LoggerContext context, PatternLayoutEncoder encoder, Environment environment) {
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+ if (environment.getLogDir().isPresent()) {
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+ FileAppender<ILoggingEvent> appender = new FileAppender<>();
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+ appender.setFile(environment.getLogDir().get().resolve(UPGRADE_FILENAME).toString());
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+ appender.setContext(context);
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+ appender.setEncoder(encoder);
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+ appender.start();
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+ return appender;
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+ } else {
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+ NOPAppender appender = new NOPAppender<>();
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+ appender.setContext(context);
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+ return appender;
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+ }
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+ }
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+
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+ @Provides
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+ @Singleton
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+ @Named("initLogging")
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+ Runnable provideLogbackInitializer(LoggerContext context, //
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+ @Named("stdoutAppender") Appender<ILoggingEvent> stdout, //
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+ @Named("upgradeAppender") Appender<ILoggingEvent> upgrade, //
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+ @Named("fileAppender") Appender<ILoggingEvent> file) {
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+ return () -> {
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+ context.reset();
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+
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+ // configure root logger:
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+ Logger root = context.getLogger(Logger.ROOT_LOGGER_NAME);
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+ root.setLevel(ROOT_LOG_LEVEL);
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+ root.addAppender(stdout);
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+ root.addAppender(file);
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+
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+ // configure root logger:
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+ Logger uprades = context.getLogger("org.cryptomator.ui.model");
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+ uprades.setLevel(Level.DEBUG);
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+ uprades.addAppender(stdout);
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+ uprades.addAppender(upgrade);
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+
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+ // add shutdown hook
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+ DelayingShutdownHook shutdownHook = new DelayingShutdownHook();
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+ shutdownHook.setContext(context);
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+ shutdownHook.setDelay(Duration.buildByMilliseconds(SHUTDOWN_DELAY_MS));
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+ };
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+ }
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+
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+
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+}
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Sebastian Stenzel