import org.metaborg.util.log.LoggerUtils; //导入依赖的package包/类
public StreamMessagePrinter(ISourceTextService sourceTextService, boolean printHighlight, boolean printExceptions,
    ILogger logger) {
    this(sourceTextService, printHighlight, printExceptions, LoggerUtils.stream(logger, Level.Info),
        LoggerUtils.stream(logger, Level.Warn), LoggerUtils.stream(logger, Level.Error));
}
 

import org.metaborg.util.log.LoggerUtils; //导入依赖的package包/类
public static OutputStream defaultStdout(String... excludePatterns) {
    return LoggerUtils.stream(LoggerUtils.logger("stdout"), Level.Info, excludePatterns);
}
 

import org.metaborg.util.log.LoggerUtils; //导入依赖的package包/类
public static OutputStream defaultStderr(String... excludePatterns) {
    return LoggerUtils.stream(LoggerUtils.logger("stderr"), Level.Info, excludePatterns);
}
 

import org.metaborg.util.log.LoggerUtils; //导入依赖的package包/类
/**
 * Creates the logger.
 *
 * @param clazz The class.
 * @return The created logger instance.
 */
private static ILogger createLogger(final Class<?> clazz) {
    return LoggerUtils.logger(clazz);
}