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Solver subproject in the Theta model checking framework

There is a newer version: 6.8.5

/*
 *  Copyright 2024 Budapest University of Technology and Economics
 *
 *  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 hu.bme.mit.theta.solver;

import java.util.ArrayList;
import java.util.Collection;

/**
 * Owns the lifecycle of the Solvers created by the SolverFactory instances returned by
 * resolveSolverFactory
 */
public abstract class SolverManager implements AutoCloseable {

    private static final Collection solverManagers = new ArrayList<>();

    public static void registerSolverManager(final SolverManager solverManager) {
        solverManagers.add(solverManager);
    }

    public static SolverFactory resolveSolverFactory(final String name) throws Exception {
        for (final SolverManager solverManager : solverManagers) {
            if (solverManager.managesSolver(name)) {
                return solverManager.getSolverFactory(name);
            }
        }

        throw new UnsupportedOperationException("Solver " + name + " not supported");
    }

    /**
     * Closes all SolverManager instances registered
     */
    public static void closeAll() throws Exception {
        for (final var solverManager : solverManagers) {
            solverManager.close();
        }
        solverManagers.clear();
    }

    public abstract boolean managesSolver(final String name);

    public abstract SolverFactory getSolverFactory(final String name) throws Exception;

}