org.opentripplanner.standalone.OtpStartupInfo Maven / Gradle / Ivy

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package org.opentripplanner.standalone;

import static org.opentripplanner.model.projectinfo.OtpProjectInfo.projectInfo;

import java.util.List;
import java.util.stream.Collectors;
import org.opentripplanner.framework.application.ApplicationShutdownSupport;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class OtpStartupInfo {

  private static final Logger LOG = LoggerFactory.getLogger(OtpStartupInfo.class);
  private static final String NEW_LINE = "\n";
  public static final List HEADER = List.of(
    "  ___                 _____     _       ____  _                             ",
    " / _ \\ _ __   ___ _ _|_   _| __(_)_ __ |  _ \\| | __ _ _ __  _ __   ___ _ __ ",
    "| | | | '_ \\ / _ \\ '_ \\| || '__| | '_ \\| |_) | |/ _` | '_ \\| '_ \\ / _ \\ '__|",
    "| |_| | |_) |  __/ | | | || |  | | |_) |  __/| | (_| | | | | | | |  __/ |   ",
    " \\___/| .__/ \\___|_| |_|_||_|  |_| .__/|_|   |_|\\__,_|_| |_|_| |_|\\___|_| ",
    "      |_|                        |_| "
  );

  private static String info() {
    return (
      "" +
      HEADER.stream().map(OtpStartupInfo::line).collect(Collectors.joining()) +
      line("Version:     " + projectInfo().version.version) +
      line("Ser.ver.id:  " + projectInfo().getOtpSerializationVersionId()) +
      line("Commit:      " + projectInfo().versionControl.commit) +
      line("Branch:      " + projectInfo().versionControl.branch) +
      line("Build:       " + projectInfo().versionControl.buildTime) +
      (projectInfo().versionControl.dirty ? line("Dirty:       Local modification exist!") : "")
    );
  }

  public static void logInfo() {
    // This is good when aggregating logs across multiple load balanced instances of OTP
    // Hint: a regexp filter like "^OTP (START|SHUTTING)" will list nodes going up/down
    LOG.info("OTP STARTING UP ({}) using Java {}", projectInfo().getVersionString(), javaVersion());
    ApplicationShutdownSupport.addShutdownHook(
      "server-shutdown-info",
      () -> LOG.info("OTP SHUTTING DOWN ({})", projectInfo().getVersionString())
    );
    LOG.info(NEW_LINE + "{}", info());
  }

  /** Use this to do a manual test */
  public static void main(String[] args) {
    System.out.println(info());
  }

  private static String line(String text) {
    return text + NEW_LINE;
  }

  private static String javaVersion() {
    return System.getProperty("java.version");
  }
}