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package org.jvnet.hyperjaxb3.annotation.util;

import java.lang.annotation.Annotation;
import java.lang.reflect.Array;

import org.jvnet.jaxb.annox.model.XAnnotation;
import org.jvnet.jaxb.annox.model.annotation.field.XAnnotationField;
import org.jvnet.jaxb.annox.model.annotation.field.XArrayAnnotationField;
import org.jvnet.jaxb.annox.model.annotation.field.XSingleAnnotationField;
import org.jvnet.jaxb.annox.model.annotation.value.XBooleanAnnotationValue;
import org.jvnet.jaxb.annox.model.annotation.value.XEnumAnnotationValue;
import org.jvnet.jaxb.annox.model.annotation.value.XIntAnnotationValue;
import org.jvnet.jaxb.annox.model.annotation.value.XStringAnnotationValue;
import org.jvnet.jaxb.annox.model.annotation.value.XXAnnotationAnnotationValue;

public class AnnotationUtils {

	public static  XAnnotationField create(
			final String name, final XAnnotation value) {
		if (value == null) {
			return null;
		} else {
			return new XSingleAnnotationField(name,
					value.getAnnotationClass(),
					new XXAnnotationAnnotationValue(value));
		}
	}

	public static XAnnotationField create(final String name,
			final String value) {
		if (value == null) {
			return null;
		} else {
			return new XSingleAnnotationField(name, String.class,
					new XStringAnnotationValue(value));
		}
	}

	public static XAnnotationField create(final String name,
			final Boolean value) {
		if (value == null) {
			return null;
		} else {
			return new XSingleAnnotationField(name, Boolean.class,
					new XBooleanAnnotationValue(value));
		}
	}

	public static XAnnotationField create(final String name,
			final Integer value) {
		if (value == null) {
			return null;
		} else {
			return new XSingleAnnotationField(name, Integer.class,
					new XIntAnnotationValue(value));
		}
	}

	public static > XAnnotationField create(
			final String name, final E value) {
		if (value == null) {
			return null;
		} else {
			return new XSingleAnnotationField(name, value.getClass(),
					new XEnumAnnotationValue(value));
		}
	}

	@SuppressWarnings({ "unchecked", "rawtypes" })
	public static  XAnnotationField create(
			final String name, final XAnnotation[] value,
			Class annotationClass) {
		if (value == null) {
			return null;
		} else {
			final XXAnnotationAnnotationValue[] values = new XXAnnotationAnnotationValue[value.length];
			for (int index = 0; index < value.length; index++) {
				values[index] = new XXAnnotationAnnotationValue(value[index]);
			}

			return new XArrayAnnotationField(name, Array
					.newInstance(annotationClass, 0).getClass(), values);
		}
	}

	public static > XAnnotationField create(
			final String name, final E[] value) {
		if (value == null) {
			return null;
		} else {

			@SuppressWarnings("unchecked")
			final XEnumAnnotationValue[] values = new XEnumAnnotationValue[value.length];
			for (int index = 0; index < value.length; index++) {
				values[index] = new XEnumAnnotationValue(value[index]);
			}
			return new XArrayAnnotationField(name, value.getClass(), values);
		}
	}

	public static XAnnotationField create(final String name,
			final String[] value) {
		if (value == null) {
			return null;
		} else {
			final XStringAnnotationValue[] values = new XStringAnnotationValue[value.length];
			for (int index = 0; index < value.length; index++) {
				values[index] = new XStringAnnotationValue(value[index]);
			}
			return new XArrayAnnotationField(name, String[].class, values);
		}
	}

}