/**
 * Copyright 2020 Alibaba Group Holding Limited.
 *
 * <p>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
 *
 * <p>http://www.apache.org/licenses/LICENSE-2.0
 *
 * <p>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 com.alibaba.graphscope.groot.meta;

import java.io.IOException;

/**
 * Distributed, reliable storage used for SnapshotManager to persist Snapshot related meta. We can
 * implement this interface with Zookeeper
 */
public interface MetaStore {

    boolean exists(String path);

    byte[] read(String path) throws IOException;

    void write(String path, byte[] content) throws IOException;

    void delete(String path) throws IOException;
}
