com.arjuna.mw.wst.common.SOAPUtil Maven / Gradle / Ivy
/*
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* Copyright 2006, Red Hat Middleware LLC, and individual contributors
* as indicated by the @author tags.
* See the copyright.txt in the distribution for a full listing
* of individual contributors.
* This copyrighted material is made available to anyone wishing to use,
* modify, copy, or redistribute it subject to the terms and conditions
* of the GNU Lesser General Public License, v. 2.1.
* This program is distributed in the hope that it will be useful, but WITHOUT A
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
* PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
* You should have received a copy of the GNU Lesser General Public License,
* v.2.1 along with this distribution; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
* MA 02110-1301, USA.
*
* (C) 2005-2006,
* @author JBoss Inc.
*/
package com.arjuna.mw.wst.common;
import java.util.Iterator;
import java.util.NoSuchElementException;
import javax.xml.soap.SOAPElement;
/**
* Utility class for SOAP.
* @author kevin
*/
public class SOAPUtil
{
/**
* Get an iterator containing just child elements.
* @param soapElement The parent soap element.
* @return The iterator of SOAPElements.
*/
public static Iterator getChildElements(final SOAPElement soapElement)
{
return new SOAPElementIterator(soapElement.getChildElements()) ;
}
/**
* An iterator class that skips any nodes which are not SOAPElements.
* @author kevin
*/
private static final class SOAPElementIterator implements Iterator
{
/**
* The wrapped iterator.
*/
private final Iterator elementIter ;
/**
* The current object.
*/
private Object current ;
/**
* Construct the iterator.
* @param elementIter The iterator being wrapped.
*/
SOAPElementIterator(final Iterator elementIter)
{
this.elementIter = elementIter ;
}
/**
* Are there any more elements?
* @return true if the iterator has more elements, false otherwise.
*/
public boolean hasNext()
{
checkCurrent() ;
return (current != null) ;
}
/**
* Get the next element.
* @return the next element.
* @throws NoSuchElementException if there are no more elements.
*/
public Object next()
throws NoSuchElementException
{
checkCurrent() ;
if (current == null)
{
throw new NoSuchElementException("No more elements in iterator") ;
}
final Object result = current ;
current = null ;
return result ;
}
/**
* Remove the current object. This method is not supported on this iterator.
* @throws UnsupportedOperationException if not supported.
* @throws IllegalStateException if the next method has not been called or
* remove has already been called on the current element.
*/
public void remove()
throws UnsupportedOperationException
{
throw new UnsupportedOperationException("Remove not supported on this iterator") ;
}
/**
* Check the current element.
*/
private void checkCurrent()
{
if (current == null)
{
while (elementIter.hasNext())
{
final Object next = elementIter.next() ;
if (next instanceof SOAPElement)
{
current = next ;
break ;
}
}
}
}
}
}