CatalogScopedCacheMgr.java

// 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.doris.datasource;

import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
import java.util.function.Function;

public class CatalogScopedCacheMgr<T> {
    private final Map<Long, T> cacheMap = new ConcurrentHashMap<>();
    private final Function<ExternalCatalog, T> cacheFactory;

    public CatalogScopedCacheMgr(Function<ExternalCatalog, T> cacheFactory) {
        this.cacheFactory = cacheFactory;
    }

    public T getCache(ExternalCatalog catalog) {
        return cacheMap.computeIfAbsent(catalog.getId(), id -> cacheFactory.apply(catalog));
    }

    public T getCache(long catalogId) {
        return cacheMap.get(catalogId);
    }

    public T removeCache(long catalogId) {
        return cacheMap.remove(catalogId);
    }
}