DorisStreamSinkExample.java

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// 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
//
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package org.apache.doris.flink;

import org.apache.doris.flink.cfg.DorisExecutionOptions;
import org.apache.doris.flink.cfg.DorisOptions;
import org.apache.doris.flink.cfg.DorisReadOptions;
import org.apache.doris.flink.cfg.DorisSink;
import org.apache.flink.api.common.functions.MapFunction;
import org.apache.flink.streaming.api.datastream.DataStream;
import org.apache.flink.streaming.api.environment.StreamExecutionEnvironment;
import org.apache.flink.table.data.GenericRowData;
import org.apache.flink.table.data.RowData;
import org.apache.flink.table.data.StringData;
import org.apache.flink.table.types.logical.DoubleType;
import org.apache.flink.table.types.logical.LogicalType;
import org.apache.flink.table.types.logical.VarCharType;

import java.util.Properties;

/**
 * example using {@link DorisSink} for streaming.
 */
public class DorisStreamSinkExample {


    public void testJsonString() throws Exception {
        /*
         * Example for JsonString element
         */
        StreamExecutionEnvironment env = StreamExecutionEnvironment.getExecutionEnvironment();
        env.setParallelism(1);

        Properties pro = new Properties();
        pro.setProperty("format", "json");
        pro.setProperty("strip_outer_array", "true");
        env.fromElements("{\"longitude\": \"116.405419\", \"city\": \"北京\", \"latitude\": \"39.916927\"}")
                .addSink(
                        DorisSink.sink(
                                DorisReadOptions.builder().build(),
                                DorisExecutionOptions.builder()
                                        .setBatchSize(3)
                                        .setBatchIntervalMs(0l)
                                        .setMaxRetries(3)
                                        .setStreamLoadProp(pro).build(),
                                DorisOptions.builder()
                                        .setFenodes("FE_IP:8030")
                                        .setTableIdentifier("db.table")
                                        .setUsername("root")
                                        .setPassword("").build()
                        ));
        env.execute("doris stream sink example");
    }


    public void testJsonStringWithDefaultReadOptions() throws Exception {
        /*
         * Example for JsonString element with default ReadOptions
         */
        StreamExecutionEnvironment env = StreamExecutionEnvironment.getExecutionEnvironment();
        env.setParallelism(1);

        Properties pro = new Properties();
        pro.setProperty("format", "json");
        pro.setProperty("strip_outer_array", "true");
        env.fromElements("{\"longitude\": \"116.405419\", \"city\": \"北京\", \"latitude\": \"39.916927\"}")
                .addSink(
                        DorisSink.sink(
                                DorisExecutionOptions.builder()
                                        .setBatchSize(3)
                                        .setBatchIntervalMs(0l)
                                        .setMaxRetries(3)
                                        .setStreamLoadProp(pro).build(),
                                DorisOptions.builder()
                                        .setFenodes("FE_IP:8030")
                                        .setTableIdentifier("db.table")
                                        .setUsername("root")
                                        .setPassword("").build()
                        ));
        env.execute("doris stream sink example");
    }


    public void testJsonStringWithDefaultReadOptionsAndExecutionOptions() throws Exception {
        /*
         * Example for JsonString element with default ReadOptions and ExecutionOptions
         */
        StreamExecutionEnvironment env = StreamExecutionEnvironment.getExecutionEnvironment();
        env.setParallelism(1);

        env.fromElements("{\"longitude\": \"116.405419\", \"city\": \"北京\", \"latitude\": \"39.916927\"}")
                .addSink(
                        DorisSink.sink(
                                DorisOptions.builder()
                                        .setFenodes("192.168.52.101:8030")
                                        .setTableIdentifier("smarttrip_db.doris_output_format")
                                        .setUsername("root")
                                        .setPassword("").build()
                        ));
        env.execute("doris stream sink example");
    }


    public void testRowData() throws Exception {
        /*
         * Example for RowData element
         */
        StreamExecutionEnvironment env = StreamExecutionEnvironment.getExecutionEnvironment();
        env.setParallelism(1);

        DataStream<RowData> source = env.fromElements("")
                .map(new MapFunction<String, RowData>() {
                    @Override
                    public RowData map(String value) throws Exception {
                        GenericRowData genericRowData = new GenericRowData(3);
                        genericRowData.setField(0, StringData.fromString("北京"));
                        genericRowData.setField(1, 116.405419);
                        genericRowData.setField(2, 39.916927);
                        return genericRowData;
                    }
                });

        String[] fields = {"city", "longitude", "latitude"};
        LogicalType[] types = {new VarCharType(), new DoubleType(), new DoubleType()};

        source.addSink(
                DorisSink.sink(
                        fields,
                        types,
                        DorisReadOptions.builder().build(),
                        DorisExecutionOptions.builder()
                                .setBatchSize(3)
                                .setBatchIntervalMs(0L)
                                .setMaxRetries(3)
                                .build(),
                        DorisOptions.builder()
                                .setFenodes("FE_IP:8030")
                                .setTableIdentifier("db.table")
                                .setUsername("root")
                                .setPassword("").build()
                ));
        env.execute("doris stream sink example");
    }


    public void testRowDataWithDefaultReadOptions() throws Exception {
        /*
         * Example for RowData element with default ReadOptions
         */
        StreamExecutionEnvironment env = StreamExecutionEnvironment.getExecutionEnvironment();
        env.setParallelism(1);

        DataStream<RowData> source = env.fromElements("")
                .map(new MapFunction<String, RowData>() {
                    @Override
                    public RowData map(String value) throws Exception {
                        GenericRowData genericRowData = new GenericRowData(3);
                        genericRowData.setField(0, StringData.fromString("北京"));
                        genericRowData.setField(1, 116.405419);
                        genericRowData.setField(2, 39.916927);
                        return genericRowData;
                    }
                });

        String[] fields = {"city", "longitude", "latitude"};
        LogicalType[] types = {new VarCharType(), new DoubleType(), new DoubleType()};

        source.addSink(
                DorisSink.sink(
                        fields,
                        types,
                        DorisExecutionOptions.builder()
                                .setBatchSize(3)
                                .setBatchIntervalMs(0L)
                                .setMaxRetries(3)
                                .build(),
                        DorisOptions.builder()
                                .setFenodes("FE_IP:8030")
                                .setTableIdentifier("db.table")
                                .setUsername("root")
                                .setPassword("").build()
                ));
        env.execute("doris stream sink example");
    }


    public void testRowDataWithDefaultReadOptionsAndExecutionOptions() throws Exception {
        /*
         * Example for RowData element with default ReadOptions and ExecutionOptions
         */
        StreamExecutionEnvironment env = StreamExecutionEnvironment.getExecutionEnvironment();
        env.setParallelism(1);

        DataStream<RowData> source = env.fromElements("")
                .map(new MapFunction<String, RowData>() {
                    @Override
                    public RowData map(String value) throws Exception {
                        GenericRowData genericRowData = new GenericRowData(3);
                        genericRowData.setField(0, StringData.fromString("北京"));
                        genericRowData.setField(1, 116.405419);
                        genericRowData.setField(2, 39.916927);
                        return genericRowData;
                    }
                });

        String[] fields = {"city", "longitude", "latitude"};
        LogicalType[] types = {new VarCharType(), new DoubleType(), new DoubleType()};

        source.addSink(
                DorisSink.sink(
                        fields,
                        types,
                        DorisOptions.builder()
                                .setFenodes("FE_IP:8030")
                                .setTableIdentifier("db.table")
                                .setUsername("root")
                                .setPassword("").build()
                ));
        env.execute("doris stream sink example");
    }
}