exec/java-exec/src/main/java/org/apache/drill/exec/server/StartupOptions.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.apache.drill.exec.server;

import java.util.ArrayList;
import java.util.List;

import com.beust.jcommander.JCommander;
import com.beust.jcommander.Parameter;
import com.beust.jcommander.Parameters;

@Parameters(separators = "=")
public class StartupOptions {
  static final org.slf4j.Logger logger = org.slf4j.LoggerFactory.getLogger(StartupOptions.class);

  @Parameter(names={"-h", "--help"}, description="Provide description of usage.", help=true)
  private boolean help = false;

  @Parameter(names= {"-d", "--debug"}, description="Whether you want to run the program in debug mode.", required=false)
  private boolean debug = false;

  @Parameter(names= {"-c", "--config"}, description="Configuration file you want to load.  Defaults to loading 'drill-override.conf' from the classpath.", required=false)
  private String configLocation = null;

  @Parameter
  private List<String> exccess = new ArrayList<String>();

  public boolean isDebug() {
    return debug;
  }

  public String getConfigLocation() {
    return configLocation;
  }

  public List<String> getExccess() {
    return exccess;
  }

  public static StartupOptions parse(String[] cliArgs) {
    logger.debug("Parsing arguments.");
    StartupOptions args = new StartupOptions();
    JCommander jc = new JCommander(args, cliArgs);
    if(args.help){
      jc.usage();
      System.exit(0);
    }
    return args;
  }

}