/*
 * 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 org.apache.geode.management.internal.cli.converters;

import java.util.List;

import org.springframework.shell.core.Completion;
import org.springframework.shell.core.Converter;
import org.springframework.shell.core.MethodTarget;

/**
 * {@link Converter} for {@link Boolean}. Use this BooleanConverter instead of SHL's
 * BooleanConverter. Removed completion & conversion for values like 0, 1, yes, no.
 *
 * @since GemFire 7.0
 */
public class BooleanConverter implements Converter<Boolean> {

  public boolean supports(final Class<?> requiredType, final String optionContext) {
    return Boolean.class.isAssignableFrom(requiredType)
        || boolean.class.isAssignableFrom(requiredType);
  }

  public Boolean convertFromText(final String value, final Class<?> requiredType,
      final String optionContext) {
    if ("true".equalsIgnoreCase(value)) {
      return true;
    } else if ("false".equalsIgnoreCase(value)) {
      return false;
    } else {
      throw new IllegalArgumentException("Cannot convert " + value + " to type Boolean.");
    }
  }

  public boolean getAllPossibleValues(final List<Completion> completions,
      final Class<?> requiredType, final String existingData, final String optionContext,
      final MethodTarget target) {
    completions.add(new Completion("true"));
    completions.add(new Completion("false"));
    return false;
  }
}