oas-cli/src/main/java/com/apigee/security/oas/CommandLineBaseRunner.java

package com.apigee.security.oas;

import com.beust.jcommander.ParameterException;
import com.google.common.flogger.FluentLogger;
import com.google.inject.Provider;
import java.io.PrintWriter;
import javax.inject.Inject;

/** Class that handles the execution. */
final class CommandLineBaseRunner implements CommandLineRunner {

  private static final FluentLogger logger = FluentLogger.forEnclosingClass();
  private final Provider<PrintWriter> printWriterProvider;
  private final CommandLineParser commandLineParser;

  @Inject
  CommandLineBaseRunner(
      Provider<PrintWriter> printWriterProvider, CommandLineParser commandLineParser) {
    this.printWriterProvider = printWriterProvider;
    this.commandLineParser = commandLineParser;
  }

  /**
   * Calls different methods for parsing & validity of arguments, OpenAPI Specification Document
   * (v3), and its security features.
   *
   * <p>Takes a {@code File} to a OpenAPI Specification (v3) document and outputs its Security
   * Validity.
   *
   * @param args Arguments that are passed through command line interface.
   */
  @Override
  public void run(String[] args) {
    PrintWriter printWriter = printWriterProvider.get();
    try {
      commandLineParser.parseArguments(args);
    } catch (ParameterException e) {
      logger.atSevere().withCause(e).log("Unable to parse arguments");
      printWriter.println(e.getLocalizedMessage());
    } finally {
      printWriter.close();
    }
  }
}