/*
 * Copyright (c) MuleSoft, Inc.  All rights reserved.  http://www.mulesoft.com
 * The software in this package is published under the terms of the CPAL v1.0
 * license, a copy of which has been included with this distribution in the
 * LICENSE.txt file.
 */
package org.mule.runtime.core.api.model.resolvers;

import org.mule.runtime.core.api.MuleEventContext;
import org.mule.runtime.core.api.transformer.TransformerException;
import org.mule.runtime.core.util.ClassUtils;

/**
 * Will resolver entry point methods on a service service that accept a single array. i.e.
 * <code>public Object eat(Fruit[] fruit)</code>
 * <p/>
 * This resolver will NOT resolve method entry points such as - <code>public Object eat(Fruit[] fruit, Banana banana)</code>
 * <p/>
 * If you require to mix an array type with complex types you need to specify an inbound transformer that return a
 * multi-dimensional array of arguments i.e. <code>new Object[]{new Fruit[]{new Apple(), new Orange()}, new Banana()};</code>
 */
public class ArrayEntryPointResolver extends AbstractArgumentEntryPointResolver {

  @Override
  protected Class<?>[] getMethodArgumentTypes(Object[] payload) {
    return ClassUtils.getClassTypes(payload);
  }

  @Override
  protected Object[] getPayloadFromMessage(MuleEventContext context) throws TransformerException {
    Object temp = context.getMessage().getPayload().getValue();
    if (temp instanceof Object[]) {
      return new Object[] {temp};
    } else {
      // Payload type not supported by this resolver
      return null;
    }
  }
}