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objectos way ETC

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/*
 * EtcProperty.java criado em 31/12/2013
 * 
 * Propriedade de Objectos Fábrica de Software LTDA.
 * Reprodução parcial ou total proibida.
 */
package br.com.objectos.way.etc;

import static com.google.common.collect.Maps.newHashMap;

import java.lang.reflect.Field;
import java.util.List;
import java.util.Map;

import com.google.common.base.Preconditions;
import com.google.common.base.Splitter;

/**
 * @author [email protected] (Marcio Endo)
 */
class EtcProperty {

  private final String type;

  private final String property;

  private final Object value;

  private EtcProperty(String type, String property, Object value) {
    this.type = type;
    this.property = property;
    this.value = value;
  }

  public static EtcProperty fromString(String string) {
    List parts = Splitter.on('.').splitToList(string);
    Preconditions.checkArgument(parts.size() == 2);
    String type = parts.get(0);
    String property = parts.get(1);
    return new EtcProperty(type, property, "");
  }

  public EtcProperty set(Class clazz, String value) {
    try {

      Field field = clazz.getDeclaredField(property);
      Class fieldType = field.getType();
      Object val = EtcPropertyConvMap.INSTANCE.convert(fieldType, value);
      return new EtcProperty(type, property, val);

    } catch (SecurityException e) {
      throw new WayEtcException("Field " + property + " could not be accessed in type "
          + clazz.getSimpleName());

    } catch (NoSuchFieldException e) {
      throw new WayEtcException("Field " + property + " does not exist in type "
          + clazz.getSimpleName());

    }
  }

  public String getType() {
    return type;
  }

  public String getProperty() {
    return property;
  }

  public Map write(Map map) {
    Map mutable = newHashMap(map);
    mutable.put(property, value);
    return mutable;
  }

}