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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.jackrabbit.oak.segment.file;

import java.io.IOException;

class FallbackCompactionStrategy implements CompactionStrategy {

    private final CompactionStrategy primary;

    private final CompactionStrategy fallback;

    FallbackCompactionStrategy(CompactionStrategy primary, CompactionStrategy fallback) {
        this.primary = primary;
        this.fallback = fallback;
    }

    @Override
    public CompactionResult compact(Context context) throws IOException {
        CompactionResult result = primary.compact(context);

        if (result.isNotApplicable()) {
            return fallback.compact(context);
        }

        return result;
    }

}