org.crsh.cmdline.ArgumentDescriptor Maven / Gradle / Ivy

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/*
 * Copyright (C) 2012 eXo Platform SAS.
 *
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This software is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */

package org.crsh.cmdline;

import org.crsh.cmdline.binding.TypeBinding;
import org.crsh.cmdline.matcher.CmdSyntaxException;
import org.crsh.cmdline.spi.Completer;

import java.io.IOException;
import java.lang.annotation.Annotation;
import java.util.ArrayList;
import java.util.List;

public class ArgumentDescriptor extends ParameterDescriptor {

  /** . */
  private final String name;

  public ArgumentDescriptor(
    B binding,
    String name,
    ParameterType type,
    Description info,
    boolean required,
    boolean password,
    boolean unquote,
    Class completerType,
    Annotation annotation) throws IllegalValueTypeException, IllegalParameterException {
    super(
      binding,
      type,
      info,
      required,
      password,
      unquote,
      completerType,
      annotation);

    //
    this.name = name;
  }

  /**
   * Returns the argument name, that can be null. This value is used for display capabilities and does not play a role
   * when a command line is parsed.
   *
   * @return the argument name
   */
  public String getName() {
    return name;
  }

  @Override
  public Object parse(List values) throws CmdSyntaxException {
    if (getMultiplicity() == Multiplicity.SINGLE) {
      if (values.size() > 1) {
        throw new CmdSyntaxException("Too many option values " + values);
      }
      String value = values.get(0);
      try {
        return parse(value);
      } catch (Exception e) {
        throw new CmdSyntaxException("Could not parse " + value);
      }
    } else {
      List