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QuestDB is high performance SQL time series database
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 *  Copyright (c) 2014-2019 Appsicle
 *  Copyright (c) 2019-2024 QuestDB
 *
 *  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
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 *
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package io.questdb.cutlass.text;

import io.questdb.cairo.CairoConfiguration;
import io.questdb.cairo.SecurityContext;
import io.questdb.cairo.security.DenyAllSecurityContext;
import io.questdb.cairo.sql.AtomicBooleanCircuitBreaker;
import io.questdb.std.Mutable;

import java.util.concurrent.atomic.AtomicLong;
import java.util.function.LongSupplier;

public class CopyContext implements Mutable {
    public static final long INACTIVE_COPY_ID = -1;
    private final AtomicLong activeCopyID = new AtomicLong(INACTIVE_COPY_ID);
    private final AtomicBooleanCircuitBreaker circuitBreaker = new AtomicBooleanCircuitBreaker();
    // Important assumption: We never access the rnd concurrently, so no need for additional synchronization.
    private final LongSupplier copyIDSupplier;
    private SecurityContext originatorSecurityContext = DenyAllSecurityContext.INSTANCE;

    public CopyContext(CairoConfiguration configuration) {
        this.copyIDSupplier = configuration.getCopyIDSupplier();
    }

    public long assignActiveImportId(SecurityContext securityContext) {
        final long id = copyIDSupplier.getAsLong();
        activeCopyID.set(id);
        this.originatorSecurityContext = securityContext;
        return id;
    }

    @Override
    public void clear() {
        activeCopyID.set(INACTIVE_COPY_ID);
        originatorSecurityContext = DenyAllSecurityContext.INSTANCE;
    }

    public long getActiveCopyID() {
        return activeCopyID.get();
    }

    public AtomicBooleanCircuitBreaker getCircuitBreaker() {
        return circuitBreaker;
    }

    public SecurityContext getOriginatorSecurityContext() {
        return originatorSecurityContext;
    }
}