| /* |
| * 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.wayang.spark.channels; |
| |
| import org.apache.wayang.basic.channels.FileChannel; |
| import org.apache.wayang.basic.data.Tuple2; |
| import org.apache.wayang.core.optimizer.channels.ChannelConversion; |
| import org.apache.wayang.core.optimizer.channels.DefaultChannelConversion; |
| import org.apache.wayang.core.types.DataSetType; |
| import org.apache.wayang.java.channels.CollectionChannel; |
| import org.apache.wayang.java.platform.JavaPlatform; |
| import org.apache.wayang.spark.operators.SparkBroadcastOperator; |
| import org.apache.wayang.spark.operators.SparkCacheOperator; |
| import org.apache.wayang.spark.operators.SparkCollectOperator; |
| import org.apache.wayang.spark.operators.SparkCollectionSource; |
| import org.apache.wayang.spark.operators.SparkObjectFileSink; |
| import org.apache.wayang.spark.operators.SparkObjectFileSource; |
| import org.apache.wayang.spark.operators.SparkTsvFileSink; |
| import org.apache.wayang.spark.operators.SparkTsvFileSource; |
| |
| import java.util.Arrays; |
| import java.util.Collection; |
| import java.util.function.Supplier; |
| import java.util.stream.Collectors; |
| |
| /** |
| * {@link ChannelConversion}s used by the {@link JavaPlatform}. |
| */ |
| public class ChannelConversions { |
| |
| private static Supplier<ChannelConversion> UNCACHED_RDD_TO_CACHED_RDD (){ |
| return () -> new DefaultChannelConversion( |
| RddChannel.UNCACHED_DESCRIPTOR, |
| RddChannel.CACHED_DESCRIPTOR, |
| () -> new SparkCacheOperator<>(DataSetType.createDefault(Void.class)) |
| ); |
| } |
| |
| private static Supplier<ChannelConversion> COLLECTION_TO_BROADCAST (){ |
| return () -> new DefaultChannelConversion( |
| CollectionChannel.DESCRIPTOR, |
| BroadcastChannel.DESCRIPTOR, |
| () -> new SparkBroadcastOperator<>(DataSetType.createDefault(Void.class)) |
| );} |
| |
| private static Supplier<ChannelConversion> COLLECTION_TO_UNCACHED_RDD (){ |
| return () -> new DefaultChannelConversion( |
| CollectionChannel.DESCRIPTOR, |
| RddChannel.UNCACHED_DESCRIPTOR, |
| () -> new SparkCollectionSource<>(DataSetType.createDefault(Void.class)) |
| );} |
| |
| private static Supplier<ChannelConversion> UNCACHED_RDD_TO_COLLECTION (){ |
| return () -> new DefaultChannelConversion( |
| RddChannel.UNCACHED_DESCRIPTOR, |
| CollectionChannel.DESCRIPTOR, |
| () -> new SparkCollectOperator<>(DataSetType.createDefault(Void.class)) |
| );} |
| |
| private static Supplier<ChannelConversion> CACHED_RDD_TO_COLLECTION (){ |
| return () -> new DefaultChannelConversion( |
| RddChannel.CACHED_DESCRIPTOR, |
| CollectionChannel.DESCRIPTOR, |
| () -> new SparkCollectOperator<>(DataSetType.createDefault(Void.class)) |
| );} |
| |
| private static Supplier<ChannelConversion> CACHED_RDD_TO_HDFS_TSV (){ |
| return () -> new DefaultChannelConversion( |
| RddChannel.CACHED_DESCRIPTOR, |
| FileChannel.HDFS_TSV_DESCRIPTOR, |
| () -> new SparkTsvFileSink<>(DataSetType.createDefaultUnchecked(Tuple2.class)) |
| );} |
| |
| private static Supplier<ChannelConversion> UNCACHED_RDD_TO_HDFS_TSV (){ |
| return () -> new DefaultChannelConversion( |
| RddChannel.UNCACHED_DESCRIPTOR, |
| FileChannel.HDFS_TSV_DESCRIPTOR, |
| () -> new SparkTsvFileSink<>(DataSetType.createDefaultUnchecked(Tuple2.class)) |
| );} |
| |
| private static Supplier<ChannelConversion> HDFS_TSV_TO_UNCACHED_RDD (){ |
| return () -> new DefaultChannelConversion( |
| FileChannel.HDFS_TSV_DESCRIPTOR, |
| RddChannel.UNCACHED_DESCRIPTOR, |
| () -> new SparkTsvFileSource(DataSetType.createDefault(Tuple2.class)) |
| );} |
| |
| private static Supplier<ChannelConversion> CACHED_RDD_TO_HDFS_OBJECT_FILE () { |
| return () -> new DefaultChannelConversion( |
| RddChannel.CACHED_DESCRIPTOR, |
| FileChannel.HDFS_OBJECT_FILE_DESCRIPTOR, |
| () -> new SparkObjectFileSink<>(DataSetType.createDefault(Void.class)) |
| ); |
| } |
| |
| private static Supplier<ChannelConversion> UNCACHED_RDD_TO_HDFS_OBJECT_FILE () { |
| return () -> new DefaultChannelConversion( |
| RddChannel.UNCACHED_DESCRIPTOR, |
| FileChannel.HDFS_OBJECT_FILE_DESCRIPTOR, |
| () -> new SparkObjectFileSink<>(DataSetType.createDefault(Void.class)) |
| ); |
| } |
| |
| private static Supplier<ChannelConversion> HDFS_OBJECT_FILE_TO_UNCACHED_RDD () { |
| return () -> new DefaultChannelConversion( |
| FileChannel.HDFS_OBJECT_FILE_DESCRIPTOR, |
| RddChannel.UNCACHED_DESCRIPTOR, |
| () -> new SparkObjectFileSource<>(DataSetType.createDefault(Void.class)) |
| ); |
| } |
| |
| public static Collection<Supplier<ChannelConversion>> SUPPLIERS = Arrays.asList( |
| //UNCACHED_RDD_TO_CACHED_RDD(), |
| COLLECTION_TO_BROADCAST(), |
| COLLECTION_TO_UNCACHED_RDD(), |
| UNCACHED_RDD_TO_COLLECTION(), |
| CACHED_RDD_TO_COLLECTION(), |
| CACHED_RDD_TO_HDFS_OBJECT_FILE(), |
| UNCACHED_RDD_TO_HDFS_OBJECT_FILE(), |
| HDFS_OBJECT_FILE_TO_UNCACHED_RDD(), |
| // HDFS_TSV_TO_UNCACHED_RDD(), |
| CACHED_RDD_TO_HDFS_TSV(), |
| UNCACHED_RDD_TO_HDFS_TSV() |
| ); |
| |
| public static Collection<ChannelConversion> ALL = getALL(); |
| |
| public static Collection<ChannelConversion> getALL(){ |
| return SUPPLIERS.stream().map(Supplier::get).collect(Collectors.toList()); |
| } |
| |
| |
| } |