org.apache.flink.table.filesystem.PartitionWriterFactory Maven / Gradle / Ivy

Show more of this group Show more artifacts with this name
Show all versions of flink-table-runtime-blink_2.12 Show documentation

This module contains classes that are required by a task manager for execution of table programs. The content of this module is work-in-progress. It will replace the runtime classes contained in flink-table-planner once it is stable. See FLINK-11439 and FLIP-32 for more details.

The newest version!

/*
 * 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.table.filesystem;

import org.apache.flink.annotation.Internal;
import org.apache.flink.table.filesystem.PartitionWriter.Context;

import java.io.Serializable;
import java.util.LinkedHashMap;

/** Factory of {@link PartitionWriter} to avoid virtual function calls. */
@Internal
public interface PartitionWriterFactory extends Serializable {

    PartitionWriter create(
            Context context, PartitionTempFileManager manager, PartitionComputer computer)
            throws Exception;

    /** Util for get a {@link PartitionWriterFactory}. */
    static  PartitionWriterFactory get(
            boolean dynamicPartition,
            boolean grouped,
            LinkedHashMap staticPartitions) {
        if (dynamicPartition) {
            return grouped ? GroupedPartitionWriter::new : DynamicPartitionWriter::new;
        } else {
            return (PartitionWriterFactory)
                    (context, manager, computer) ->
                            new SingleDirectoryWriter<>(
                                    context, manager, computer, staticPartitions);
        }
    }
}