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/*
* JBoss, Home of Professional Open Source
* Copyright 2005, JBoss Inc., and individual contributors as indicated
* by the @authors tag. See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY 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 along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.ws.extensions.wsrm.common.serialization;
import java.util.List;
import java.util.LinkedList;
import java.util.Collections;
import org.w3c.dom.Element;
import org.jboss.wsf.common.DOMUtils;
import org.jboss.ws.extensions.wsrm.api.RMException;
import javax.xml.namespace.QName;
import javax.xml.soap.SOAPElement;
/**
* Serialization helper
* @author richard.opalka@jboss.com
*/
final class RMSerializationHelper
{
private RMSerializationHelper()
{
// no instances
}
public static String getRequiredTextContent(SOAPElement element, QName elementQName)
{
if (!DOMUtils.hasTextChildNodesOnly(element))
throw new RMException(
"Only text content is allowed for element " + elementQName);
return DOMUtils.getTextContent(element).trim();
}
public static SOAPElement getRequiredElement(SOAPElement element, QName requiredQName, QName contextQName)
{
return (SOAPElement)getRequiredElement(element, requiredQName, contextQName.toString());
}
public static SOAPElement getRequiredElement(SOAPElement element, QName requiredQName, String context)
{
List<Element> childElements = DOMUtils.getChildElementsAsList(element, requiredQName);
if (childElements.size() < 1)
throw new RMException(
"Required " + requiredQName + " element not found in " + context + " element");
if (childElements.size() > 1)
throw new RMException(
"Only one " + requiredQName + " element can be present in " + context + " element");
return (SOAPElement)childElements.get(0);
}
public static String getRequiredTextContent(SOAPElement element, QName attributeQName, QName elementQName)
{
String attributeValue = element.getAttributeValue(attributeQName);
if (attributeValue == null)
throw new RMException(
"Required attribute " + attributeQName + " is missing in element " + elementQName);
return attributeValue;
}
public static SOAPElement getOptionalElement(SOAPElement contextElement, QName optionalQName, QName contextQName)
{
List<Element> list = DOMUtils.getChildElementsAsList(contextElement, optionalQName);
if (list.size() > 1)
throw new RMException(
"At most one " + optionalQName + " element can be present in " + contextQName + " element");
return (SOAPElement)((list.size() == 1) ? list.get(0) : null);
}
public static List<SOAPElement> getOptionalElements(SOAPElement contextElement, QName optionalQName, QName contextQName)
{
List<Element> temp = DOMUtils.getChildElementsAsList(contextElement, optionalQName);
if (temp.size() == 0)
{
return Collections.emptyList();
}
else
{
List<SOAPElement> retVal = new LinkedList<SOAPElement>();
for (Element e : temp)
{
retVal.add((SOAPElement)e);
}
return retVal;
}
}
public static long stringToLong(String toEvaluate, String errorMessage)
{
try
{
return Long.valueOf(toEvaluate);
}
catch (NumberFormatException nfe)
{
throw new RMException(errorMessage, nfe);
}
}
}
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