Usage:JBoss XACML

Project PicketBox from JBoss has an XACML engine that can be used in a Java environment.

Assuming that your configuration file is available, something like the following should work for you:

import org.jboss.security.xacml.core.JBossPDP;

import org.jboss.security.xacml.interfaces.PolicyDecisionPoint;

import org.jboss.security.xacml.interfaces.XACMLConstants;
 

//Get hold of an InputStream to the config file 

ClassLoader tcl = Thread.currentThread().getContextClassLoader();

InputStream is = tcl.getResourceAsStream( MY_CONFIG_FILE );

PolicyDecisionPoint pdp = new JBossPDP(is);

//Form your RequestContext by some means

ResponseContext response = pdp.evaluate(request);

int decision = response.getDecision();
//Decision can be one of XACMLConstants.DECISION_DENY

//XACMLConstants.DECISION_PERMIT 

RequestContext requestContext = RequestResponseContextFactory.createRequestCtx();

//Read the xacml request from input stream

requestContext.readRequest( is );

requestContext.readRequest( node );  //Parse xacml request as DOM node 

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If you need to look at code examples: http://community.jboss.org/wiki/XACMLPDPSOAPService