/*
* Copyright 2003 Federal Chancellery Austria
* MOA-SPSS has been developed in a cooperation between BRZ, the Federal
* Chancellery Austria - ICT staff unit, and Graz University of Technology.
*
* Licensed under the EUPL, Version 1.1 or - as soon they will be approved by
* the European Commission - subsequent versions of the EUPL (the "Licence");
* You may not use this work except in compliance with the Licence.
* You may obtain a copy of the Licence at:
* http://www.osor.eu/eupl/
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the Licence is distributed on an "AS IS" basis,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the Licence for the specific language governing permissions and
* limitations under the Licence.
*
* This product combines work with different licenses. See the "NOTICE" text
* file for details on the various modules and licenses.
* The "NOTICE" text file is part of the distribution. Any derivative works
* that you distribute must include a readable copy of the "NOTICE" text file.
*/
package at.gv.egovernment.moa.spss.server.invoke;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import at.gv.egovernment.moa.spss.MOAApplicationException;
import at.gv.egovernment.moa.spss.api.common.ElementSelector;
import at.gv.egovernment.moaspss.util.XPathException;
import at.gv.egovernment.moaspss.util.XPathUtils;
/**
* Utility methods for invoking the IAIK MOA modules.
*
* @author Patrick Peck
* @version $Id$
*/
public class InvokerUtils {
/**
* Select the signature parent element.
*
* @param root The root DOM element which contains the signature parent
* element somewhere in its subtree.
* @param location The ElementSelector
containing the XPath
* expression to select the signature parent element from the document.
* It is also contains the namespace prefix to URI mapping.
* @return Element The signature parent element.
* @throws MOAApplicationException An error occurred evaluating the
* location
.
*/
public static Element evaluateSignatureLocation(
Element root,
ElementSelector location)
throws MOAApplicationException {
NodeList nodes;
try {
nodes =
XPathUtils.selectNodeList(
root,
location.getNamespaceDeclarations(),
location.getXPathExpression());
} catch (XPathException e) {
throw new MOAApplicationException(
"2212",
new Object[] { location.getXPathExpression()},
e);
}
if (nodes.getLength() != 1
|| !(nodes.item(0).getNodeType() == Node.ELEMENT_NODE)) {
throw new MOAApplicationException(
"2212",
new Object[] { location.getXPathExpression()});
}
return (Element) nodes.item(0);
}
}