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/*
 * Copyright 2014 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.kuujo.vertigo.util;

import net.kuujo.vertigo.network.validators.ValidationException;
import net.kuujo.vertigo.spi.ConfigValidator;

import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.ServiceLoader;

/**
 * Configuration validator utilities.
 *
 * @author Jordan Halterman
 */
public final class Validators {
  private static final Map> validators = new HashMap<>();

  /**
   * Validates the configuration for the given value.
   *
   * @param value The value for which to validate the configuration.
   * @param type The validator type.
   * @param  The value type.
   * @param  The validator type.
   * @return The validated configuration value.
   * @throws ValidationException if a validation error occurs.
   */
  public static > T validate(T value, Class type) {
    for (U validator : ServiceLoader.load(type)) {
      validator.validate(value);
    }
    return value;
  }

}