/*
 * Copyright (c) 2016 Uber Technologies, Inc. (hoodie-dev-group@uber.com)
 *
 * 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
 *
 *          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 com.uber.hoodie.io.storage;

import com.uber.hoodie.config.HoodieWriteConfig;
import com.uber.hoodie.avro.HoodieAvroWriteSupport;
import com.uber.hoodie.common.BloomFilter;
import com.uber.hoodie.common.model.HoodieRecordPayload;
import com.uber.hoodie.common.model.HoodieTableMetadata;
import com.uber.hoodie.common.util.FSUtils;
import org.apache.avro.Schema;
import org.apache.avro.generic.IndexedRecord;
import org.apache.hadoop.fs.Path;
import org.apache.parquet.avro.AvroSchemaConverter;
import org.apache.parquet.hadoop.metadata.CompressionCodecName;

import java.io.IOException;

public class HoodieStorageWriterFactory {
    public static <T extends HoodieRecordPayload, R extends IndexedRecord> HoodieStorageWriter<R> getStorageWriter(
            String commitTime, Path path, HoodieTableMetadata metadata, HoodieWriteConfig config, Schema schema)
        throws IOException {
        //TODO - based on the metadata choose the implementation of HoodieStorageWriter
        // Currently only parquet is supported
        return newParquetStorageWriter(commitTime, path, config, schema);
    }

    private static <T extends HoodieRecordPayload, R extends IndexedRecord> HoodieStorageWriter<R> newParquetStorageWriter(
            String commitTime, Path path, HoodieWriteConfig config, Schema schema) throws IOException {
        BloomFilter filter =
            new BloomFilter(config.getBloomFilterNumEntries(), config.getBloomFilterFPP());
        HoodieAvroWriteSupport writeSupport =
            new HoodieAvroWriteSupport(new AvroSchemaConverter().convert(schema), schema, filter);

        HoodieParquetConfig parquetConfig =
            new HoodieParquetConfig(writeSupport, CompressionCodecName.GZIP,
                config.getParquetBlockSize(), config.getParquetPageSize(),
                config.getParquetMaxFileSize(), FSUtils.getFs().getConf());

        return new HoodieParquetWriter<>(commitTime, path, parquetConfig, schema);
    }
}
