/*
* JBoss, Home of Professional Open Source.
* Copyright 2009, Red Hat Middleware LLC, and individual contributors
* 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.jms.server.destination;
import java.lang.reflect.Type;
import java.util.HashMap;
import java.util.Map;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import org.jboss.metatype.api.types.CompositeMetaType;
import org.jboss.metatype.api.types.MapCompositeMetaType;
import org.jboss.metatype.api.types.MetaType;
import org.jboss.metatype.api.types.SimpleMetaType;
import org.jboss.metatype.api.values.CompositeValue;
import org.jboss.metatype.api.values.CompositeValueSupport;
import org.jboss.metatype.api.values.MapCompositeValueSupport;
import org.jboss.metatype.api.values.MetaValue;
import org.jboss.metatype.api.values.SimpleValue;
import org.jboss.metatype.api.values.SimpleValueSupport;
import org.jboss.metatype.plugins.types.MutableCompositeMetaType;
import org.jboss.metatype.spi.values.MetaMapper;
import org.w3c.dom.Attr;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.NodeList;
/**
* A metaMapper mapping Element to a MapCompositeValue.
*
* @author <a href="mailto:emuckenh@redhat.com">Emanuel Muckenhuber</a>
* @version $Revision$
*/
public class SecurityConfigMapper extends MetaMapper<Element>
{
/** The role attributes. */
protected static final String[] attributes = new String[] { "read", "write", "create"};
/** The meta type. */
protected static final MapCompositeMetaType metaType;
/** The composite meta type. */
public static MutableCompositeMetaType composite;
static
{
// Create the meta type
composite = new MutableCompositeMetaType("SecurityConfig", "The security config");
composite.addItem("read", "read permission", SimpleMetaType.BOOLEAN);
composite.addItem("write", "write permission", SimpleMetaType.BOOLEAN);
composite.addItem("create", "create permission", SimpleMetaType.BOOLEAN);
composite.freeze();
// The map composite meta type
metaType = new MapCompositeMetaType(composite);
}
@Override
public MetaType getMetaType()
{
return metaType;
}
@Override
public Type mapToType()
{
return Element.class;
}
@Override
public MetaValue createMetaValue(MetaType metaType, Element object)
{
if(object == null)
return null;
Map<String, MetaValue> entries = new HashMap<String, MetaValue>();
// Parse
NodeList list = object.getElementsByTagName("role");
int l = list.getLength();
for(int i = 0; i<l;i++) {
Element role = (Element)list.item(i);
Attr na = role.getAttributeNode("name");
if (na == null)
continue;
// Role name
String name = na.getValue();
// the role values
Map<String, MetaValue> values = parseAttributes(role, attributes);
// Put
entries.put(name, new CompositeValueSupport(composite, values));
}
return new MapCompositeValueSupport(entries, metaType);
}
@Override
public Element unwrapMetaValue(MetaValue metaValue)
{
if(metaValue == null)
return null;
if(metaValue instanceof MapCompositeValueSupport)
{
MapCompositeValueSupport value = (MapCompositeValueSupport) metaValue;
CompositeMetaType metaType = value.getMetaType();
// Don't create a empty securityConfig
if(metaType.itemSet().isEmpty())
return null;
// Create the dom document
Document d = createDocument();
// Security
Element security = d.createElement("security");
for(String name : metaType.itemSet())
{
// Role
CompositeValue row = (CompositeValue) value.get(name);
// FIXME the MapMetaType might not be up 2 date
if(row == null)
continue;
Element role = d.createElement("role");
role.setAttribute("name", name);
// For each attribute: read, write, create
for(String attribute : attributes)
{
SimpleValue v = (SimpleValue) row.get(attribute);
if(v != null && v.getValue() != null)
{
role.setAttribute(attribute, ((Boolean)v.getValue()).toString());
}
}
security.appendChild(role);
}
return security;
}
return null;
}
protected static Document createDocument()
{
try
{
DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
DocumentBuilder db = dbf.newDocumentBuilder();
return db.newDocument();
}
catch(Exception e)
{
throw new RuntimeException(e);
}
}
protected static Map<String, MetaValue> parseAttributes(Element element, String... attributeNames)
{
Map<String, MetaValue> map = new HashMap<String, MetaValue>();
for(String attribute : attributeNames)
{
map.put(attribute, parseAttribute(attribute, element));
}
return map;
}
protected static SimpleValue parseAttribute(String attributeName, Element element)
{
Boolean value = null;
if(element.getAttributeNode(attributeName) != null)
{
value = Boolean.valueOf(element.getAttribute(attributeName));
}
return new SimpleValueSupport(SimpleMetaType.BOOLEAN, value);
}
}