com.sun.jmx.remote.opt.security.JMXSubjectDomainCombiner Maven / Gradle / Ivy
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* JPPF.
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*
* Licensed under the Apache License, Version 2.0 (the "License");
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*
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*/
/*
* @(#)JMXSubjectDomainCombiner.java 1.3
*
*
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package com.sun.jmx.remote.opt.security;
import java.security.*;
import javax.security.auth.*;
/**
* This class represents an extension to the {@link SubjectDomainCombiner} and is used to add a new {@link ProtectionDomain},
* comprised of a null codesource/signers and an empty permission set, to the access control context with which this combiner is combined.
*
When the {@link #combine} method is called the {@link ProtectionDomain} is augmented with the permissions granted to the set of principals present in the supplied {@link Subject}.
*/
public class JMXSubjectDomainCombiner extends SubjectDomainCombiner {
/**
*
*/
private static final CodeSource nullCodeSource = new CodeSource(null, (java.security.cert.Certificate[]) null);
/**
*
*/
private static final ProtectionDomain pd = new ProtectionDomain(nullCodeSource, new Permissions());
/**
*
* @param s .
*/
public JMXSubjectDomainCombiner(final Subject s) {
super(s);
}
/**
*
* @param current .
* @param assigned .
* @return .
*/
@Override
public ProtectionDomain[] combine(final ProtectionDomain[] current, final ProtectionDomain[] assigned) {
// Add a new ProtectionDomain with the null codesource/signers, and the empty permission set, to the end of the array containing the
// 'current' protections domains, i.e. the ones that will be augmented with the permissions granted to the set of principals present inthe supplied subject.
ProtectionDomain[] newCurrent;
if (current == null || current.length == 0) {
newCurrent = new ProtectionDomain[1];
newCurrent[0] = pd;
} else {
newCurrent = new ProtectionDomain[current.length + 1];
for (int i = 0; i < current.length; i++) newCurrent[i] = current[i];
newCurrent[current.length] = pd;
}
return super.combine(newCurrent, assigned);
}
}