net.projectmonkey.internal.converter.ConverterStore Maven / Gradle / Ivy

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/*
 * Copyright 2011 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 net.projectmonkey.internal.converter;

import java.util.List;
import java.util.concurrent.CopyOnWriteArrayList;

import net.projectmonkey.spi.ConditionalConverter;
import net.projectmonkey.spi.ConditionalConverter.MatchResult;

/**
 * @author Jonathan Halterman
 */
public final class ConverterStore {
  private final ConditionalConverter[] defaultConverters = new ConditionalConverter[] {
      new StringConverter(), new EnumConverter(), new ArrayConverter(), new CollectionConverter(),
      new MapConverter(), new AssignableConverter(), new NumberConverter(), new BooleanConverter(),
      new CharacterConverter(), new DateConverter() };
  private final List> converters = new CopyOnWriteArrayList>();

  public ConverterStore() {
    for (ConditionalConverter converter : defaultConverters)
      converters.add(converter);
  }

  /**
   * Returns the first converter that supports converting from {@code sourceType} to
   * {@code destinationType}.
   */
  @SuppressWarnings("unchecked")
  public  ConditionalConverter getFirstSupported(Class sourceType,
      Class destinationType) {
    for (ConditionalConverter converter : converters)
      if (!MatchResult.NONE.equals(converter.match(sourceType, destinationType)))
        return (ConditionalConverter) converter;
    return null;
  }

  public List> getConverters() {
    return converters;
  }
}