package org.jboss.windup.util;
import java.util.Iterator;
/**
*
* @author <a href="mailto:ozizka@redhat.com">Ondrej Zizka</a>
*/
public class Util
{
public static final String WINDUP_BRAND_NAME_LONG = "Red Hat Application Migration Toolkit";
public static final String WINDUP_BRAND_NAME_ACRONYM = "RHAMT";
/**
* Returns a single item from the Iterator.
* If there's none, returns null.
* If there are more, throws an IllegalStateException.
*
* @throws IllegalStateException
*/
public static final <T> T getSingle( Iterable<T> it ) {
if( ! it.iterator().hasNext() )
return null;
final Iterator<T> iterator = it.iterator();
T o = iterator.next();
if(iterator.hasNext())
throw new IllegalStateException("Found multiple items in iterator over " + o.getClass().getName() );
return o;
}
}