| /* |
| * 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.connectors.kudu; |
| |
| import org.apache.flink.api.common.io.RichOutputFormat; |
| import org.apache.flink.configuration.Configuration; |
| import org.apache.flink.streaming.connectors.kudu.connector.KuduConnector; |
| import org.apache.flink.streaming.connectors.kudu.connector.KuduRow; |
| import org.apache.flink.streaming.connectors.kudu.connector.KuduTableInfo; |
| import org.apache.flink.streaming.connectors.kudu.serde.KuduSerialization; |
| import org.apache.flink.util.Preconditions; |
| import org.apache.kudu.client.SessionConfiguration.FlushMode; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import java.io.IOException; |
| |
| public class KuduOutputFormat<OUT> extends RichOutputFormat<OUT> { |
| |
| private static final long serialVersionUID = 1L; |
| |
| private static final Logger LOG = LoggerFactory.getLogger(KuduOutputFormat.class); |
| |
| private String kuduMasters; |
| private KuduTableInfo tableInfo; |
| private KuduConnector.Consistency consistency; |
| private KuduConnector.WriteMode writeMode; |
| |
| private KuduSerialization<OUT> serializer; |
| |
| private transient KuduConnector connector; |
| |
| |
| public KuduOutputFormat(String kuduMasters, KuduTableInfo tableInfo, KuduSerialization<OUT> serializer) { |
| Preconditions.checkNotNull(kuduMasters,"kuduMasters could not be null"); |
| this.kuduMasters = kuduMasters; |
| |
| Preconditions.checkNotNull(tableInfo,"tableInfo could not be null"); |
| this.tableInfo = tableInfo; |
| this.consistency = KuduConnector.Consistency.STRONG; |
| this.writeMode = KuduConnector.WriteMode.UPSERT; |
| this.serializer = serializer.withSchema(tableInfo.getSchema()); |
| } |
| |
| |
| public KuduOutputFormat<OUT> withEventualConsistency() { |
| this.consistency = KuduConnector.Consistency.EVENTUAL; |
| return this; |
| } |
| |
| public KuduOutputFormat<OUT> withStrongConsistency() { |
| this.consistency = KuduConnector.Consistency.STRONG; |
| return this; |
| } |
| |
| public KuduOutputFormat<OUT> withUpsertWriteMode() { |
| this.writeMode = KuduConnector.WriteMode.UPSERT; |
| return this; |
| } |
| |
| public KuduOutputFormat<OUT> withInsertWriteMode() { |
| this.writeMode = KuduConnector.WriteMode.INSERT; |
| return this; |
| } |
| |
| public KuduOutputFormat<OUT> withUpdateWriteMode() { |
| this.writeMode = KuduConnector.WriteMode.UPDATE; |
| return this; |
| } |
| |
| @Override |
| public void configure(Configuration parameters) { |
| |
| } |
| |
| @Override |
| public void open(int taskNumber, int numTasks) throws IOException { |
| if (connector != null) return; |
| connector = new KuduConnector(kuduMasters, tableInfo, consistency, writeMode,FlushMode.AUTO_FLUSH_SYNC); |
| serializer = serializer.withSchema(tableInfo.getSchema()); |
| } |
| |
| @Override |
| public void writeRecord(OUT row) throws IOException { |
| boolean response; |
| try { |
| KuduRow kuduRow = serializer.serialize(row); |
| response = connector.writeRow(kuduRow); |
| } catch (Exception e) { |
| throw new IOException(e.getLocalizedMessage(), e); |
| } |
| |
| if(!response) { |
| throw new IOException("error with some transaction"); |
| } |
| } |
| |
| @Override |
| public void close() throws IOException { |
| if (this.connector == null) return; |
| try { |
| this.connector.close(); |
| } catch (Exception e) { |
| throw new IOException(e.getLocalizedMessage(), e); |
| } |
| } |
| } |