EMsnap commented on code in PR #6213: URL: https://github.com/apache/inlong/pull/6213#discussion_r1002936551
########## inlong-sort/sort-connectors/doris/src/main/java/org/apache/inlong/sort/doris/table/DorisDynamicSchemaOutputFormat.java: ########## @@ -0,0 +1,337 @@ +/* + * 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.inlong.sort.doris.table; + +import org.apache.commons.lang3.StringUtils; +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.exception.DorisException; +import org.apache.doris.flink.exception.StreamLoadException; +import org.apache.doris.flink.rest.RestService; +import org.apache.doris.shaded.com.fasterxml.jackson.databind.ObjectMapper; +import org.apache.flink.api.common.io.RichOutputFormat; +import org.apache.flink.configuration.Configuration; +import org.apache.flink.runtime.util.ExecutorThreadFactory; +import org.apache.flink.shaded.jackson2.com.fasterxml.jackson.databind.JsonNode; +import org.apache.flink.table.data.RowData; +import org.apache.flink.types.RowKind; +import org.apache.inlong.sort.base.format.DynamicSchemaFormatFactory; +import org.apache.inlong.sort.base.format.JsonDynamicSchemaFormat; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import java.io.IOException; +import java.nio.charset.StandardCharsets; +import java.util.ArrayList; +import java.util.HashMap; +import java.util.List; +import java.util.Map; +import java.util.Map.Entry; +import java.util.Properties; +import java.util.concurrent.Executors; +import java.util.concurrent.ScheduledExecutorService; +import java.util.concurrent.ScheduledFuture; +import java.util.concurrent.TimeUnit; + +/** + * DorisDynamicSchemaOutputFormat, copy from {@link org.apache.doris.flink.table.DorisDynamicOutputFormat} + * It is used in the multiple sink scenario, in this scenario, we directly convert the data format by + * 'sink.multiple.format' in the data stream to doris json that is used to load + */ +public class DorisDynamicSchemaOutputFormat<T> extends RichOutputFormat<T> { + + private static final long serialVersionUID = 1L; + private static final Logger LOG = LoggerFactory.getLogger(DorisDynamicSchemaOutputFormat.class); + private static final ObjectMapper OBJECT_MAPPER = new ObjectMapper(); + private static final String COLUMNS_KEY = "columns"; + private static final String DORIS_DELETE_SIGN = "__DORIS_DELETE_SIGN__"; + private static final String UNIQUE_KEYS_TYPE = "UNIQUE_KEYS"; + @SuppressWarnings({"rawtypes"}) + private final Map<String, List> batchMap = new HashMap<>(); + private final DorisOptions options; + private final DorisReadOptions readOptions; + private final DorisExecutionOptions executionOptions; + private final String databasePattern; + private final String tablePattern; + private long batchBytes = 0L; + private DorisStreamLoad dorisStreamLoad; + private String dynamicSchemaFormat; + private transient volatile boolean closed = false; + private transient ScheduledExecutorService scheduler; + private transient ScheduledFuture<?> scheduledFuture; + private transient volatile Exception flushException; + + public DorisDynamicSchemaOutputFormat(DorisOptions option, + DorisReadOptions readOptions, + DorisExecutionOptions executionOptions, + String dynamicSchemaFormat, + String databasePattern, + String tablePattern) { + this.options = option; + this.readOptions = readOptions; + this.executionOptions = executionOptions; + this.dynamicSchemaFormat = dynamicSchemaFormat; + this.databasePattern = databasePattern; + this.tablePattern = tablePattern; + handleStreamloadProp(); + } + + /** + * A builder used to set parameters to the output format's configuration in a fluent way. + * + * @return builder + */ + public static DorisDynamicSchemaOutputFormat.Builder builder() { + return new DorisDynamicSchemaOutputFormat.Builder(); + } + + private void handleStreamloadProp() { + Properties streamLoadProp = executionOptions.getStreamLoadProp(); + //add column key when fieldNames is not empty +// if (!streamLoadProp.containsKey(COLUMNS_KEY) && fieldNames != null && fieldNames.length > 0) { +// String columns = String.join(",", Arrays +// .stream(fieldNames).map(item -> String.format("`%s`", item.trim().replace("`", ""))).collect( +// Collectors.toList())); +// if (enableBatchDelete()) { +// columns = String.format("%s,%s", columns, DORIS_DELETE_SIGN); +// } +// streamLoadProp.put(COLUMNS_KEY, columns); +// } + } + + private boolean enableBatchDelete() { + return executionOptions.getEnableDelete(); + } + + @Override + public void configure(Configuration configuration) { + } + + @Override + public void open(int taskNumber, int numTasks) throws IOException { + dorisStreamLoad = new DorisStreamLoad( + getBackend(), + options.getUsername(), + options.getPassword(), + executionOptions.getStreamLoadProp()); + if (executionOptions.getBatchIntervalMs() != 0 && executionOptions.getBatchSize() != 1) { + this.scheduler = Executors.newScheduledThreadPool(1, + new ExecutorThreadFactory("doris-streamload-output-format")); + this.scheduledFuture = this.scheduler.scheduleWithFixedDelay(() -> { + synchronized (DorisDynamicSchemaOutputFormat.this) { + if (!closed) { + try { + flush(); + } catch (Exception e) { + flushException = e; + } + } + } + }, executionOptions.getBatchIntervalMs(), executionOptions.getBatchIntervalMs(), TimeUnit.MILLISECONDS); + } + } + + private void checkFlushException() { + if (flushException != null) { + throw new RuntimeException("Writing records to streamload failed.", flushException); + } + } + + @Override + public synchronized void writeRecord(T row) throws IOException { + checkFlushException(); + addBatch(row); + if ((executionOptions.getBatchSize() > 0 && batchMap.size() >= executionOptions.getBatchSize()) + || batchBytes >= executionOptions.getMaxBatchBytes()) { + flush(); + } + } + + @SuppressWarnings({"unchecked"}) + private void addBatch(T row) throws IOException { + if (row instanceof RowData) { + RowData rowData = (RowData) row; + if (null == dynamicSchemaFormat) { + LOG.error("dynamicSchemaFormat is null"); + throw new RuntimeException("dynamicSchemaFormat can not be null"); + } + JsonDynamicSchemaFormat jsonDynamicSchemaFormat = (JsonDynamicSchemaFormat) + DynamicSchemaFormatFactory.getFormat(dynamicSchemaFormat); + JsonNode rootNode = jsonDynamicSchemaFormat.deserialize(rowData.getBinary(0)); + String tableIdentifier = StringUtils.join( + jsonDynamicSchemaFormat.parse(rowData.getBinary(0), databasePattern), + ".", + jsonDynamicSchemaFormat.parse(rowData.getBinary(0), tablePattern)); + Map<String, String> physicalData = jsonDynamicSchemaFormat.physicalDataToMap(rootNode); + batchBytes += physicalData.toString().getBytes(StandardCharsets.UTF_8).length; + // add doris delete sign + if (enableBatchDelete()) { + physicalData.put(DORIS_DELETE_SIGN, parseDeleteSign(rowData.getRowKind())); + } + batchMap.computeIfAbsent(tableIdentifier, k -> new ArrayList<>()).add(physicalData); + } else { + throw new RuntimeException("The type of element should be 'RowData' only."); + } + } + + private String parseDeleteSign(RowKind rowKind) { + if (RowKind.INSERT.equals(rowKind) || RowKind.UPDATE_AFTER.equals(rowKind)) { + return "0"; Review Comment: magic num, please add some doc -- This is an automated message from the Apache Git Service. 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