org.opentripplanner.ext.interactivelauncher.DebugLoggingSupport Maven / Gradle / Ivy

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package org.opentripplanner.ext.interactivelauncher;

import ch.qos.logback.classic.Level;
import ch.qos.logback.classic.Logger;
import ch.qos.logback.classic.LoggerContext;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import org.slf4j.LoggerFactory;

/**
 * Responsible for integration with the OTP Debug log configuraton, reading loggers from the slf4j
 * context and setting DEBUG level on selected loggers back.
 * 
 * The log names are transformed to be more human readable:
 * 
org.opentripplanner.routing.algorithm  -->  o.o.routing.algorithm
 */
public class DebugLoggingSupport {

  public static List getLogs() {
    List result = new ArrayList<>();
    LoggerContext context = (LoggerContext) LoggerFactory.getILoggerFactory();
    for (Logger log : context.getLoggerList()) {
      var name = log.getName();
      if (name.matches("(org\\.opentripplanner\\..*|[A-Z0-9_]*)") && !name.equals("ROOT")) {
        result.add(logDisplayName(name));
      }
    }
    return result;
  }

  public static void configureDebugLogging(Map loggers) {
    LoggerContext context = (LoggerContext) LoggerFactory.getILoggerFactory();
    for (Logger log : context.getLoggerList()) {
      var name = logDisplayName(log.getName());
      if (loggers.getOrDefault(name, false)) {
        log.setLevel(Level.DEBUG);
      }
    }
  }

  private static String logDisplayName(String name) {
    return name.replace("org.opentripplanner.", "o.o.");
  }
}