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    • net.sf.mmm.util.value.base.AbstractComposedValueConverter Maven / Gradle / Ivy

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    /* Copyright (c) The m-m-m Team, Licensed under the Apache License, Version 2.0
 * http://www.apache.org/licenses/LICENSE-2.0 */
package net.sf.mmm.util.value.base;

import java.lang.reflect.Type;

import javax.inject.Inject;

import net.sf.mmm.util.exception.api.ValueNotSetException;
import net.sf.mmm.util.exception.api.WrongValueTypeException;
import net.sf.mmm.util.reflect.api.GenericType;
import net.sf.mmm.util.reflect.api.ReflectionUtil;
import net.sf.mmm.util.reflect.base.ReflectionUtilImpl;
import net.sf.mmm.util.value.api.ComposedValueConverter;

/**
 * This is the abstract base implementation of the {@link ComposedValueConverter} interface.
 *
 * @author Joerg Hohwiller (hohwille at users.sourceforge.net)
 * @since 1.0.1
 */
public abstract class AbstractComposedValueConverter extends AbstractGenericValueConverter
    implements ComposedValueConverter {

  private ReflectionUtil reflectionUtil;

  /**
   * The constructor.
   */
  public AbstractComposedValueConverter() {

    super();
  }

  /**
   * This method gets the {@link ReflectionUtil} instance to use.
   *
   * @return the {@link ReflectionUtil} to use.
   */
  public ReflectionUtil getReflectionUtil() {

    return this.reflectionUtil;
  }

  /**
   * @param reflectionUtil is the {@link ReflectionUtil} to {@link Inject}.
   */
  @Inject
  public void setReflectionUtil(ReflectionUtil reflectionUtil) {

    getInitializationState().requireNotInitilized();
    this.reflectionUtil = reflectionUtil;
  }

  @Override
  protected void doInitialize() {

    super.doInitialize();
    if (this.reflectionUtil == null) {
      this.reflectionUtil = ReflectionUtilImpl.getInstance();
    }
  }

  @Override
  public final Class getSourceType() {

    return Object.class;
  }

  @Override
  public final Class getTargetType() {

    return Object.class;
  }

  @Override
  public final  T convert(Object value, Object valueSource, Class targetClass) {

    return convert(value, valueSource, getReflectionUtil().createGenericType(targetClass));
  }

  @Override
  public  TARGET convertValue(Object value, Object valueSource, Class targetClass)
      throws ValueNotSetException, WrongValueTypeException {

    if (value == null) {
      throw new ValueNotSetException(valueSource);
    }
    TARGET result = convert(value, valueSource, targetClass);
    if (result == null) {
      throw new WrongValueTypeException(value, valueSource, targetClass);
    }
    return result;
  }

  @Override
  @SuppressWarnings("unchecked")
  public  TARGET convertValue(Object value, Object valueSource, Class targetClass, Type targetType)
      throws ValueNotSetException, WrongValueTypeException {

    if (value == null) {
      throw new ValueNotSetException(valueSource);
    }
    GenericType genericType = getReflectionUtil().createGenericType(targetType);
    TARGET result = (TARGET) convert(value, valueSource, genericType);
    if (result == null) {
      throw new WrongValueTypeException(value, valueSource, targetClass);
    }
    return result;
  }

}
    
    
    
    

    




    
    
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