org.jboss.security.config.parser.MappingConfigParser Maven / Gradle / Ivy
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* as indicated by the @author tags. See the copyright.txt file 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.security.config.parser;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import javax.xml.namespace.QName;
import javax.xml.stream.XMLEventReader;
import javax.xml.stream.XMLStreamConstants;
import javax.xml.stream.XMLStreamException;
import javax.xml.stream.XMLStreamReader;
import javax.xml.stream.events.Attribute;
import javax.xml.stream.events.StartElement;
import javax.xml.stream.events.XMLEvent;
import org.jboss.security.config.Element;
import org.jboss.security.mapping.MappingType;
import org.jboss.security.mapping.config.MappingModuleEntry;
/**
* Stax based mapping configuration Parser
*
* @author [email protected]
* @author Marcus Moyses
* @since Jan 22, 2010
*/
public class MappingConfigParser implements XMLStreamConstants
{
/**
* The mapping module by default can be ROLE type
* or it can be defined by the module with a 'type' attribute
*/
private String typeName = MappingType.ROLE.toString();
/**
* Parse the element
* @param xmlEventReader
* @return
* @throws XMLStreamException
*/
public List parse(XMLEventReader xmlEventReader) throws XMLStreamException
{
List entries = new ArrayList();
while(xmlEventReader.hasNext())
{
XMLEvent xmlEvent = xmlEventReader.peek();
StartElement peekedStartElement = (StartElement) xmlEvent;
String peekedStartElementName = StaxParserUtil.getStartElementName(peekedStartElement);
MappingModuleEntry entry = null;
if("mapping-module".equals(peekedStartElementName))
{
entry = this.getEntry(xmlEventReader);
}
else
break;
entries.add(entry);
}
return entries;
}
@SuppressWarnings("unchecked")
private MappingModuleEntry getEntry(XMLEventReader xmlEventReader) throws XMLStreamException
{
XMLEvent xmlEvent = xmlEventReader.nextEvent();
Map options = new HashMap();
String codeName = null;
//We got the login-module element
StartElement policyModuleElement = (StartElement) xmlEvent;
//We got the login-module element
Iterator attrs = policyModuleElement.getAttributes();
while(attrs.hasNext())
{
Attribute attribute = attrs.next();
QName attQName = attribute.getName();
String attributeValue = StaxParserUtil.getAttributeValue(attribute);
if("code".equals(attQName.getLocalPart()))
{
codeName = attributeValue;
}
else if("type".equals(attQName.getLocalPart()))
{
typeName = attributeValue;
}
}
//See if there are options
ModuleOptionParser moParser = new ModuleOptionParser();
options.putAll(moParser.parse(xmlEventReader));
return new MappingModuleEntry(codeName, options,typeName);
}
/**
* Parse the element
* @param reader
* @return
* @throws XMLStreamException
*/
public List parse(XMLStreamReader reader) throws XMLStreamException
{
List entries = new ArrayList();
while (reader.hasNext() && reader.nextTag() != END_ELEMENT)
{
final Element element = Element.forName(reader.getLocalName());
MappingModuleEntry entry = null;
if (element.equals(Element.MAPPING_MODULE))
{
entry = getEntry(reader);
}
else
throw StaxParserUtil.unexpectedElement(reader);
entries.add(entry);
}
return entries;
}
private MappingModuleEntry getEntry(XMLStreamReader reader) throws XMLStreamException
{
Map options = new HashMap();
String codeName = null;
final int count = reader.getAttributeCount();
if (count < 1)
{
throw StaxParserUtil.missingRequired(reader, Collections.singleton(org.jboss.security.config.Attribute.CODE));
}
for (int i = 0; i < count; i++)
{
final String value = reader.getAttributeValue(i);
final org.jboss.security.config.Attribute attribute = org.jboss.security.config.Attribute.forName(reader
.getAttributeLocalName(i));
switch (attribute)
{
case CODE : {
codeName = value;
break;
}
case TYPE : {
typeName = value;
break;
}
default :
throw StaxParserUtil.unexpectedAttribute(reader, i);
}
}
if (codeName == null)
throw StaxParserUtil.missingRequired(reader, Collections.singleton(org.jboss.security.config.Attribute.CODE));
//See if there are options
ModuleOptionParser moParser = new ModuleOptionParser();
options.putAll(moParser.parse(reader));
return new MappingModuleEntry(codeName, options, typeName);
}
}