ExceptionWrapLiteral.java

/*
 * Copyright 2011 Blazebit
 */
package com.blazebit.cdi.exception.annotation;

import java.util.Arrays;
import javax.enterprise.util.AnnotationLiteral;

/**
 * Literal for annotation, that can be used for extensions.
 * 
 * @author Christian Beikov
 * @since 0.1.2
 * @see ExceptionWrap
 */
public class ExceptionWrapLiteral extends AnnotationLiteral<ExceptionWrap>
		implements ExceptionWrap {

	private static final long serialVersionUID = 1L;
	private Class<? extends Throwable>[] sources;
	private Class<? extends Exception> wrapper;

	@SuppressWarnings("unchecked")
	public ExceptionWrapLiteral() {
		this(new Class[] { java.lang.Throwable.class },
				java.lang.Exception.class);
	}

	public ExceptionWrapLiteral(Class<? extends Throwable>... sources) {
		this(sources, java.lang.Exception.class);
	}

	@SuppressWarnings("unchecked")
	public ExceptionWrapLiteral(Class<? extends Exception> wrapper) {
		this(new Class[] { java.lang.Throwable.class }, wrapper);
	}

	public ExceptionWrapLiteral(Class<? extends Throwable>[] sources,
			Class<? extends Exception> wrapper) {
		this.sources = sources;
		this.wrapper = wrapper;
	}

	@Override
	public Class<? extends Throwable>[] sources() {
		return sources == null ? null : Arrays.copyOf(sources, sources.length);
	}

	@Override
	public Class<? extends Exception> wrapper() {
		return wrapper;
	}
}