/*
 * 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.flink.streaming.api.operators.sorted.state;

import org.apache.flink.runtime.state.CheckpointableKeyedStateBackend;
import org.apache.flink.runtime.state.DefaultOperatorStateBackendBuilder;
import org.apache.flink.runtime.state.OperatorStateBackend;
import org.apache.flink.runtime.state.StateBackend;

/** A simple {@link StateBackend} which is used in a BATCH style execution. */
public class BatchExecutionStateBackend implements StateBackend {

    @Override
    public <K> CheckpointableKeyedStateBackend<K> createKeyedStateBackend(
            KeyedStateBackendParameters<K> parameters) {
        return new BatchExecutionKeyedStateBackend<>(
                parameters.getKeySerializer(),
                parameters.getKeyGroupRange(),
                parameters.getEnv().getExecutionConfig());
    }

    @Override
    public OperatorStateBackend createOperatorStateBackend(
            OperatorStateBackendParameters parameters) throws Exception {
        return new DefaultOperatorStateBackendBuilder(
                        parameters.getEnv().getUserCodeClassLoader().asClassLoader(),
                        parameters.getEnv().getExecutionConfig(),
                        false,
                        parameters.getStateHandles(),
                        parameters.getCancelStreamRegistry())
                .build();
    }
}
