content: /*
   * 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 com.aliyun.openservices.odps.console.pub;
  
  import java.io.PrintStream;
  
  import com.aliyun.odps.OdpsException;
  import com.aliyun.openservices.odps.console.ExecutionContext;
  import com.aliyun.openservices.odps.console.ODPSConsoleException;
  import com.aliyun.openservices.odps.console.commands.AbstractCommand;
  import com.aliyun.openservices.odps.console.commands.InteractiveCommand;
  
  public class QuitCommand extends AbstractCommand {
  
    public static final String[] HELP_TAGS = new String[]{"quit", "q"};
  
    public static void printUsage(PrintStream stream) {
      stream.println("Usage: q|quit");
    }
  
    public void run() throws OdpsException, ODPSConsoleException {
  
      InteractiveCommand.quit = true;
    }
  
    public QuitCommand(String commandText, ExecutionContext context) {
      super(commandText, context);
    }
  
    public static QuitCommand parse(String commandString, ExecutionContext sessionContext) {
      if (commandString.toUpperCase().matches("\\s*Q\\s*")
          || commandString.toUpperCase().matches("\\s*QUIT\\s*")) {
        return new QuitCommand(commandString, sessionContext);
      }
      return null;
    }
  }
  