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Posted to commits@inlong.apache.org by GitBox <gi...@apache.org> on 2022/07/18 11:14:30 UTC
[GitHub] [inlong] vernedeng commented on a diff in pull request #5061: [INLONG-4806][Sort] Sort support InlongMsg pb format
vernedeng commented on code in PR #5061:
URL: https://github.com/apache/inlong/pull/5061#discussion_r923245042
##########
inlong-sort/sort-formats/format-inlongmsg-pb/src/main/java/org/apache/inlong/sort/formats/inlongmsgpb/InLongMsgPbDecodingFormat.java:
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@@ -0,0 +1,234 @@
+/*
+ * 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.formats.inlongmsgpb;
+
+import org.apache.commons.lang3.time.DateFormatUtils;
+import org.apache.flink.api.common.serialization.DeserializationSchema;
+import org.apache.flink.api.common.typeinfo.TypeInformation;
+import org.apache.flink.formats.csv.CsvRowDataDeserializationSchema;
+import org.apache.flink.shaded.jackson2.com.fasterxml.jackson.databind.JsonNode;
+import org.apache.flink.shaded.jackson2.com.fasterxml.jackson.databind.ObjectReader;
+import org.apache.flink.shaded.jackson2.com.fasterxml.jackson.dataformat.csv.CsvMapper;
+import org.apache.flink.shaded.jackson2.com.fasterxml.jackson.dataformat.csv.CsvParser;
+import org.apache.flink.shaded.jackson2.com.fasterxml.jackson.dataformat.csv.CsvSchema;
+import org.apache.flink.table.api.DataTypes;
+import org.apache.flink.table.connector.ChangelogMode;
+import org.apache.flink.table.connector.format.DecodingFormat;
+import org.apache.flink.table.connector.source.DynamicTableSource.Context;
+import org.apache.flink.table.data.RowData;
+import org.apache.flink.table.data.StringData;
+import org.apache.flink.table.types.DataType;
+import org.apache.flink.table.types.utils.DataTypeUtils;
+import org.apache.inlong.sdk.commons.protocol.ProxySdk;
+import org.apache.inlong.sdk.commons.utils.GzipUtils;
+import org.apache.inlong.sort.formats.inlongmsgpb.InLongMsgPbDeserializationSchema.MetadataConverter;
+import org.apache.inlong.sort.formats.inlongmsgpb.InLongMsgPbDeserializationSchema.InLongPbMsgDecompressor;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.xerial.snappy.Snappy;
+
+import java.lang.reflect.Field;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.LinkedHashMap;
+import java.util.List;
+import java.util.Locale;
+import java.util.Map;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
+
+public class InLongMsgPbDecodingFormat implements DecodingFormat<DeserializationSchema<RowData>> {
+
+ private static final Logger log = LoggerFactory.getLogger(InLongMsgPbDecodingFormat.class);
+
+ private final String innerFormatMetaPrefix;
+
+ private final DecodingFormat<DeserializationSchema<RowData>> innerDecodingFormat;
+
+ private List<String> metadataKeys;
+
+ private final boolean ignoreErrors;
+
+ private final String decompressType;
+
+ private final boolean ignoreTailingUnmappable;
+
+ public InLongMsgPbDecodingFormat(
+ DecodingFormat<DeserializationSchema<RowData>> innerDecodingFormat,
+ String innerFormatMetaPrefix,
+ boolean ignoreErrors,
+ boolean ignoreTailingUnmappable,
+ String decompressType) {
+ this.innerDecodingFormat = innerDecodingFormat;
+ this.innerFormatMetaPrefix = innerFormatMetaPrefix;
+ this.metadataKeys = Collections.emptyList();
+ this.ignoreErrors = ignoreErrors;
+ this.ignoreTailingUnmappable = ignoreTailingUnmappable;
+ this.decompressType = decompressType;
+ }
+
+ @Override
+ public DeserializationSchema<RowData> createRuntimeDecoder(Context context, DataType physicalDataType) {
+ final MetadataConverter[] metadataConverters = Arrays.stream(ReadableMetadata.values())
+ .filter(metadata -> metadataKeys.contains(metadata.key))
+ .map(metadata -> metadata.converter)
+ .toArray(MetadataConverter[]::new);
+ final List<ReadableMetadata> readableMetadata =
+ metadataKeys.stream()
+ .map(
+ k ->
+ Stream.of(ReadableMetadata.values())
+ .filter(rm -> rm.key.equals(k))
+ .findFirst()
+ .orElseThrow(IllegalStateException::new))
+ .collect(Collectors.toList());
+ final List<DataTypes.Field> metadataFields =
+ readableMetadata.stream()
+ .map(m -> DataTypes.FIELD(m.key, m.dataType))
+ .collect(Collectors.toList());
+ final DataType producedDataType =
+ DataTypeUtils.appendRowFields(physicalDataType, metadataFields);
+ final TypeInformation<RowData> producedTypeInfo =
+ context.createTypeInformation(producedDataType);
+ final InLongPbMsgDecompressor decompressor = getDecompressor(decompressType);
+
+ DeserializationSchema<RowData> innerSchema =
+ innerDecodingFormat.createRuntimeDecoder(context, physicalDataType);
+ if (innerSchema instanceof CsvRowDataDeserializationSchema && ignoreTailingUnmappable) {
+ this.makeCsvInnerFormatIgnoreTailingUnmappable(innerSchema);
+ }
+ return new InLongMsgPbDeserializationSchema(
+ innerSchema,
+ metadataConverters,
+ producedTypeInfo,
+ decompressor,
+ ignoreErrors);
+ }
+
+ @Override
+ public Map<String, DataType> listReadableMetadata() {
+ final Map<String, DataType> metadataMap = new LinkedHashMap<>();
+
+ // add inner format metadata with prefix
+ innerDecodingFormat
+ .listReadableMetadata()
+ .forEach((key, value) -> metadataMap.putIfAbsent(innerFormatMetaPrefix + key, value));
+
+ // add format metadata
+ Stream.of(ReadableMetadata.values())
+ .forEachOrdered(m -> metadataMap.putIfAbsent(m.key, m.dataType));
+
+ return metadataMap;
+ }
+
+ @Override
+ public void applyReadableMetadata(List<String> metadataKeys) {
+ // separate inner format and format metadata
+ final List<String> innerFormatMetadataKeys =
+ metadataKeys.stream()
+ .filter(k -> k.startsWith(innerFormatMetaPrefix))
+ .collect(Collectors.toList());
+ final List<String> formatMetadataKeys = new ArrayList<>(metadataKeys);
+ formatMetadataKeys.removeAll(innerFormatMetadataKeys);
+ this.metadataKeys = formatMetadataKeys;
+
+ // push down inner format metadata
+ final Map<String, DataType> formatMetadata = innerDecodingFormat.listReadableMetadata();
+ if (formatMetadata.size() > 0) {
+ final List<String> requestedFormatMetadataKeys =
+ innerFormatMetadataKeys.stream()
+ .map(k -> k.substring(innerFormatMetaPrefix.length()))
+ .collect(Collectors.toList());
+ innerDecodingFormat.applyReadableMetadata(requestedFormatMetadataKeys);
+ }
+ }
+
+ @Override
+ public ChangelogMode getChangelogMode() {
+ return innerDecodingFormat.getChangelogMode();
+ }
+
+ /** only support gzip and snappy for now */
+ private InLongPbMsgDecompressor getDecompressor(String decompressType) {
+ switch (decompressType.toLowerCase(Locale.ROOT)) {
+ case "gzip":
+ return GzipUtils::decompress;
+ case "snappy":
+ return Snappy::uncompress;
+ case "no-compress":
+ default:
+ return unDecompress -> unDecompress;
+ }
+ }
+
+ /**
+ * Use reflection to make csv format ignore tailing unmappable.
+ */
+ private void makeCsvInnerFormatIgnoreTailingUnmappable(DeserializationSchema<RowData> innerSchema) {
+ try {
+ Field readerField = CsvRowDataDeserializationSchema.class.getDeclaredField("objectReader");
+ readerField.setAccessible(true);
+ ObjectReader oldReader = (ObjectReader) readerField.get(innerSchema);
+
+ Field schemaField = ObjectReader.class.getDeclaredField("_schema");
+ schemaField.setAccessible(true);
+ CsvSchema oldSchema = (CsvSchema) schemaField.get(oldReader);
+
+ ObjectReader newReader = new CsvMapper()
+ .enable(CsvParser.Feature.IGNORE_TRAILING_UNMAPPABLE)
+ .readerFor(JsonNode.class)
+ .with(oldSchema);
+ readerField.set(innerSchema, newReader);
+ } catch (Throwable t) {
+ log.error("failed to make csv inner format to ignore tailing unmappable, ex is ", t);
+ }
+ }
+
+ // --------------------------------------------------------------------------------------------
+ // Metadata handling
+ // --------------------------------------------------------------------------------------------
+
+ enum ReadableMetadata {
+ DS(
+ "ds",
Review Comment:
has renamed to "create-time"
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