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 java.util.Iterator;
  import java.util.Set;
  
  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.SetCommand;
  
  /**
   * 显示set和alias设置的值
   * 
   * @author shuman.gansm
   * */
  public class ShowFlagsCommand extends AbstractCommand {
  
    public static final String[] HELP_TAGS = new String[]{"show", "set", "alias", "flag", "flags"};
  
    public static void printUsage(PrintStream stream) {
      stream.println("Usage: show flags");
    }
  
    public ShowFlagsCommand(String commandText, ExecutionContext context) {
      super(commandText, context);
    }
  
    @Override
    public void run() throws ODPSConsoleException, OdpsException {
  
      getWriter().writeError("Set config:");
      Set<String> setKeySet = SetCommand.setMap.keySet();
      for (Iterator<String> it = setKeySet.iterator(); it.hasNext();) {
        String key = it.next();
        getWriter().writeError(key + "=" + SetCommand.setMap.get(key));
  
      }
  
      getWriter().writeError("Alias config:");
      Set<String> aliasKeySet = SetCommand.aliasMap.keySet();
      for (Iterator<String> it = aliasKeySet.iterator(); it.hasNext();) {
        String key = it.next();
        getWriter().writeError(key + "=" + SetCommand.aliasMap.get(key));
  
      }
  
    }
  
    public static ShowFlagsCommand parse(String commandString, ExecutionContext sessionContext)
        throws ODPSConsoleException {
  
      if (commandString.trim().toUpperCase().matches("SHOW\\s+FLAGS")) {
  
        return new ShowFlagsCommand(commandString, sessionContext);
      }
      return null;
    }
  
  }
  