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/*
 * Copyright (c) 1998-2015 Caucho Technology -- all rights reserved
 *
 * This file is part of Baratine(TM)
 *
 * Each copy or derived work must preserve the copyright notice and this
 * notice unmodified.
 *
 * Baratine is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * Baratine is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
 * of NON-INFRINGEMENT.  See the GNU General Public License for more
 * details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Baratine; if not, write to the
 *
 *   Free Software Foundation, Inc.
 *   59 Temple Place, Suite 330
 *   Boston, MA 02111-1307  USA
 *
 * @author Scott Ferguson
 */

package com.caucho.v5.json.ser;

import java.lang.reflect.Array;
import java.util.ArrayList;

import com.caucho.v5.json.io.InJson.Event;
import com.caucho.v5.json.io.JsonReader;
import com.caucho.v5.json.io.JsonWriter;
import com.caucho.v5.util.L10N;

public class ObjectArraySerializerJson 
  extends AbstractJsonArraySerializer
{
  private static L10N L = new L10N(ObjectArraySerializerJson.class);
  
  private Class _elementType;
  private SerializerJson _elementDeser;

  ObjectArraySerializerJson(Class elementType,
                            SerializerJson elementDeser)
  {
    _elementType = elementType;
    _elementDeser = elementDeser;
  }
  
  @Override
  public void write(JsonWriter out, Object[] value)
  {
    out.writeStartArray();
    
    for (Object child : value) {
      out.write(child);
    }
    
    out.writeEndArray();
  }

  @Override
  public Object []read(JsonReader in)
  {
    Event event = in.next();
    
    if (event == null || event == Event.VALUE_NULL) {
      return null;
    }
    
    if (event != Event.START_ARRAY) {
      throw new JsonException(L.l("expected array at {0}", event));
    }
    
    ArrayList values = new ArrayList<>();
    
    while ((event = in.peek()) != Event.END_ARRAY && event != null) {
      values.add(_elementDeser.read(in));
    }
    
    in.next();
    
    Object []array = (Object []) Array.newInstance(_elementType, values.size());
    values.toArray(array);
    
    return array;
  }
}