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/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.apache.cassandra.cql3.functions;

import java.util.Set;

/**
 * Used by {@link ThreadAwareSecurityManager} to determine whether access-control checks needs to be performed.
 */
public final class SecurityThreadGroup extends ThreadGroup
{
    private final Set allowedPackages;
    private final ThreadInitializer threadInitializer;

    public SecurityThreadGroup(String name, Set allowedPackages, ThreadInitializer threadInitializer)
    {
        super(name);
        this.allowedPackages = allowedPackages;
        this.threadInitializer = threadInitializer;
    }

    public void initializeThread()
    {
        threadInitializer.initializeThread();
    }

    public boolean isPackageAllowed(String pkg)
    {
        return allowedPackages == null || allowedPackages.contains(pkg);
    }

    @FunctionalInterface
    interface ThreadInitializer
    {
        void initializeThread();
    }
}




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