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/*
 * Firebird Open Source JDBC Driver
 *
 * Distributable under LGPL license.
 * You may obtain a copy of the License at http://www.gnu.org/copyleft/lgpl.html
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * LGPL License for more details.
 *
 * This file was created by members of the firebird development team.
 * All individual contributions remain the Copyright (C) of those
 * individuals.  Contributors to this file are either listed here or
 * can be obtained from a source control history command.
 *
 * All rights reserved.
 */
package org.firebirdsql.jaybird.util;

import org.jspecify.annotations.NullUnmarked;

import java.sql.SQLException;
import java.util.function.Function;

import static java.util.Objects.requireNonNull;

/**
 * An implementation of {@link SQLExceptionThrowingFunction} to wrap a {@link Function}.
 *
 * @param 
 *         type of the input to the function
 * @param 
 *         type of the result of the function
 * @author Mark Rotteveel
 * @since 6
 */
@NullUnmarked
final class SQLExceptionThrowingFunctionWrappingFunction implements SQLExceptionThrowingFunction {

    private final Function wrapped;

    SQLExceptionThrowingFunctionWrappingFunction(Function wrapped) {
        this.wrapped = requireNonNull(wrapped, "wrapped");
    }

    @Override
    public R apply(T t) throws SQLException {
        try {
            return wrapped.apply(t);
        } catch (UncheckedSQLException e) {
            throw e.getCause();
        }
    }

    @Override
    public Function toFunction() {
        return wrapped;
    }

}