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This artifact provides a single jar that contains all classes required to use remote Jakarta Enterprise Beans and Jakarta Messaging, including all dependencies. It is intended for use by those not using maven, maven users should just import the Jakarta Enterprise Beans and Jakarta Messaging BOM's instead (shaded JAR's cause lots of problems with maven, as it is very easy to inadvertently end up with different versions on classes on the class path).

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/*
 * JBoss, Home of Professional Open Source.
 * Copyright 2016 Red Hat, Inc., and individual contributors
 * as indicated by the @author tags.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.wildfly.security.permission;

import java.security.Permission;
import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;
import java.util.Enumeration;
import java.util.Iterator;
import java.util.concurrent.ConcurrentHashMap;

/**
 * A permission collection for actionless permissions which are organized by name.
 *
 * @author David M. Lloyd
 */
public final class ByNamePermissionCollection extends AbstractPermissionCollection {
    private final ConcurrentHashMap byName = new ConcurrentHashMap<>();
    private volatile Permission all;

    /**
     * The source permission used to construct this collection.
     *
     * @param sourcePermission the source permission (must not be {@code null})
     */
    public ByNamePermissionCollection(final AbstractPermission sourcePermission) {
        super(sourcePermission);
    }

    public int size() {
        return all != null ? 1 : byName.size();
    }

    public Iterator iterator() {
        return getIterablePermissions().iterator();
    }

    public Enumeration elements() {
        return Collections.enumeration(getIterablePermissions());
    }

    private Collection getIterablePermissions() {
        return all != null ? Collections.singleton(all) : Arrays.asList(byName.values().toArray(PermissionUtil.NO_PERMISSIONS));
    }

    protected void doAdd(final AbstractPermission permission) {
        if (permission.getName().equals("*")) {
            all = permission;
            byName.clear();
        } else {
            byName.putIfAbsent(permission.getName(), permission);
        }
    }

    public boolean implies(final Permission permission) {
        if (permission == null || getSourcePermission().getClass() != permission.getClass()) {
            return false;
        }
        final Permission all = this.all;
        if (all != null) {
            return all.implies(permission);
        }
        final Permission ourPermission = byName.get(permission.getName());
        return ourPermission != null && ourPermission.implies(permission);
    }
}