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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.spi.mount;

import java.util.Collection;

import javax.annotation.CheckForNull;
import javax.annotation.Nonnull;

import aQute.bnd.annotation.ProviderType;

@ProviderType
public interface MountInfoProvider {

    /**
     * Maps a given path to logical store name.
     *
     * @param path node path for which backing store location is to be determined
     * @return mountInfo for the given path. If no explicit mount configured then
     * default mount would be returned
     */
    @Nonnull
    Mount getMountByPath(String path);

    /**
     * Set of non default mount points configured for the setup
     */
    @Nonnull
    Collection getNonDefaultMounts();

    /**
     * Returns the mount instance for given mount name
     *
     * @param name name of the mount
     * @return mount instance for given mount name. If no mount exists for given name
     * null would be returned
     */
    @CheckForNull
    Mount getMountByName(String name);

    /**
     * Return true if there are explicit mounts configured
     */
    boolean hasNonDefaultMounts();

    /**
     * Returns all mounts placed under the specified path
     *
     * @param path the path under which mounts are to be found
     * @return a collection of mounts, possibly empty
     */
    @Nonnull
    Collection getMountsPlacedUnder(String path);

    @Nonnull
    Collection getMountsPlacedDirectlyUnder(String path);

    /**
     * Returns the default mount
     */
    @Nonnull
    Mount getDefaultMount();
}