EnumHandler.java

/*
 * Copyright (c) 2009-present the original author or authors.
 *
 * Licensed 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.planet57.gshell.util.cli2.handler;

import com.planet57.gshell.util.cli2.CliDescriptor;

/**
 * Handler for enum types.
 *
 * @author <a href="mailto:jason@planet57.com">Jason Dillon</a>
 * @since 2.3
 */
public class EnumHandler
    extends DefaultHandler
{
  public EnumHandler(final CliDescriptor desc) {
    super(desc);
  }

  @Override
  public String getDefaultToken() {
    StringBuilder buff = new StringBuilder();
    buff.append('[');

    Enum[] constants = (Enum[]) getSetter().getType().getEnumConstants();

    for (int i = 0; i < constants.length; i++) {
      buff.append(constants[i].name().toLowerCase());
      if (i + 1 < constants.length) {
        buff.append('|');
      }
    }

    buff.append(']');

    return buff.toString();
  }
}