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.resource;
  
  import java.io.PrintStream;
  import java.util.List;
  import java.util.ListIterator;
  
  import org.apache.commons.cli.CommandLine;
  import org.apache.commons.cli.GnuParser;
  import org.apache.commons.cli.Options;
  import org.apache.commons.cli.Option;
  import org.apache.commons.cli.ParseException;
  
  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.constants.ODPSConsoleConstants;
  import com.aliyun.openservices.odps.console.utils.antlr.AntlrObject;
  
  public class CreateResourceCommand extends AbstractCommand {
  
    public static final String[] HELP_TAGS = new String[]{"create", "add", "resource"};
  
    public static void printUsage(PrintStream stream) {
      // Do not show usage, since this command will be removed soon.
    }
  
    @Override
    public void run() throws OdpsException, ODPSConsoleException {
      // Do Nothing
    }
  
    public CreateResourceCommand(String commandText, ExecutionContext context) {
      super(commandText, context);
    }
  
    public static AddResourceCommand parse(String commandString, ExecutionContext sessionContext)
        throws ODPSConsoleException {
  
      String[] tokens = new AntlrObject(commandString).getTokenStringArray();
  
      if (tokens != null && tokens.length >= 2 &&
          tokens[0].toUpperCase().equals("CREATE") && tokens[1].toUpperCase().equals("RESOURCE")) {
  
        GnuParser parser = new GnuParser();
        Options options = new Options();
        options.addOption("p", "project", true, null);
        options.addOption("c", "comment", true, null);
        options.addOption("f", "force", false, null);
  
        try {
          CommandLine cl = parser.parse(options, tokens);
  
          String refName = null;
          String alias = "";
          String comment = null;
          String type = null;
          String partitionSpec = "";
          boolean isUpdate = false;
  
          List<String> argList = cl.getArgList();
          int size = argList.size();
  
          if (size < 4) {
            throw new ODPSConsoleException(ODPSConsoleConstants.BAD_COMMAND + "Missing parameters");
          }
  
          ListIterator<String> iter = argList.listIterator();
          iter.next();
          iter.next();
          type = iter.next();
          refName = iter.next();
          if (iter.hasNext()) {
            String item = iter.next();
            if (item.equals("(")) {
              boolean isParenPaired = false;
  
              while (iter.hasNext()) {
                String s = iter.next();
                if (s.equals(")")) {
                  isParenPaired = true;
                  break;
                }
                partitionSpec += s;
              }
  
              if (!isParenPaired) {
                throw new ODPSConsoleException(ODPSConsoleConstants.BAD_COMMAND + "Unpaired parenthesis");
              }
  
              if (!iter.hasNext()) {
                throw new ODPSConsoleException(ODPSConsoleConstants.BAD_COMMAND + "Missing parameter: alias");
              }
              item = iter.next();
            }
  
            alias = item;
          }
  
          if (iter.hasNext()) {
            throw new ODPSConsoleException(ODPSConsoleConstants.BAD_COMMAND + "Illegal parameter: " + iter.next());
          }
  
          String projectName = null;
          Option[] opts = cl.getOptions();
          for (Option opt : opts) {
            if ("f".equals(opt.getOpt())) {
              isUpdate = true;
            } else if ("c".equals(opt.getOpt())) {
              comment = opt.getValue();
            } else if ("p".equals(opt.getOpt())) {
              projectName = opt.getValue();
            } else {
              throw new ODPSConsoleException(ODPSConsoleConstants.BAD_COMMAND + "Illegal option: " + opt.getOpt());
            }
          }
  
          return new AddResourceCommand(
              commandString,
              sessionContext,
              refName,
              alias,
              comment,
              type,
              partitionSpec,
              isUpdate,
              projectName);
        } catch (ParseException e) {
          throw new ODPSConsoleException(ODPSConsoleConstants.BAD_COMMAND + "Invalid parameters");
        }
      } else {
        return null;
      }
    }
  }
  