/* * 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.kylin.engine.mr.steps; import java.io.IOException; import org.apache.kylin.cube.inmemcubing.ICuboidWriter; import org.apache.kylin.cube.inmemcubing.InputConverterUnit; import org.apache.kylin.cube.inmemcubing.InputConverterUnitForRawData; import org.apache.kylin.engine.mr.ByteArrayWritable; import org.apache.kylin.engine.mr.IMRInput; import org.apache.kylin.engine.mr.MRUtil; import com.google.common.base.Preconditions; public class InMemCuboidMapper<KEYIN> extends InMemCuboidMapperBase<KEYIN, Object, ByteArrayWritable, ByteArrayWritable, String[]> { private IMRInput.IMRTableInputFormat flatTableInputFormat; @Override protected void doSetup(Context context) throws IOException { super.doSetup(context); flatTableInputFormat = MRUtil.getBatchCubingInputSide(cubeSegment).getFlatTableInputFormat(); } @Override protected InputConverterUnit<String[]> getInputConverterUnit(Context context) { Preconditions.checkNotNull(cubeDesc); Preconditions.checkNotNull(dictionaryMap); return new InputConverterUnitForRawData(cubeDesc, flatDesc, dictionaryMap); } @Override protected String[] getRecordFromKeyValue(KEYIN key, Object value) { return flatTableInputFormat.parseMapperInput(value).iterator().next(); } @Override protected ICuboidWriter getCuboidWriter(Context context) { return new MapContextGTRecordWriter(context, cubeDesc, cubeSegment); } }