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[FLINK-13286][table-api] Port RowtimeValidator and SchemaValidator to…
… api-java-bridge This closes #9168
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...le-api-java-bridge/src/main/java/org/apache/flink/table/descriptors/RowtimeValidator.java
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| /* | ||
| * 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. | ||
| */ | ||
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| package org.apache.flink.table.descriptors; | ||
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| import org.apache.flink.annotation.PublicEvolving; | ||
| import org.apache.flink.api.java.tuple.Tuple2; | ||
| import org.apache.flink.table.api.ValidationException; | ||
| import org.apache.flink.table.sources.tsextractors.ExistingField; | ||
| import org.apache.flink.table.sources.tsextractors.StreamRecordTimestamp; | ||
| import org.apache.flink.table.sources.tsextractors.TimestampExtractor; | ||
| import org.apache.flink.table.sources.wmstrategies.AscendingTimestamps; | ||
| import org.apache.flink.table.sources.wmstrategies.BoundedOutOfOrderTimestamps; | ||
| import org.apache.flink.table.sources.wmstrategies.PreserveWatermarks; | ||
| import org.apache.flink.table.sources.wmstrategies.WatermarkStrategy; | ||
| import org.apache.flink.table.utils.EncodingUtils; | ||
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|
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| import java.util.HashMap; | ||
| import java.util.Map; | ||
| import java.util.Optional; | ||
| import java.util.function.Consumer; | ||
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| import static org.apache.flink.table.descriptors.Rowtime.ROWTIME_TIMESTAMPS_CLASS; | ||
| import static org.apache.flink.table.descriptors.Rowtime.ROWTIME_TIMESTAMPS_FROM; | ||
| import static org.apache.flink.table.descriptors.Rowtime.ROWTIME_TIMESTAMPS_SERIALIZED; | ||
| import static org.apache.flink.table.descriptors.Rowtime.ROWTIME_TIMESTAMPS_TYPE; | ||
| import static org.apache.flink.table.descriptors.Rowtime.ROWTIME_TIMESTAMPS_TYPE_VALUE_CUSTOM; | ||
| import static org.apache.flink.table.descriptors.Rowtime.ROWTIME_TIMESTAMPS_TYPE_VALUE_FROM_FIELD; | ||
| import static org.apache.flink.table.descriptors.Rowtime.ROWTIME_TIMESTAMPS_TYPE_VALUE_FROM_SOURCE; | ||
| import static org.apache.flink.table.descriptors.Rowtime.ROWTIME_WATERMARKS_CLASS; | ||
| import static org.apache.flink.table.descriptors.Rowtime.ROWTIME_WATERMARKS_DELAY; | ||
| import static org.apache.flink.table.descriptors.Rowtime.ROWTIME_WATERMARKS_SERIALIZED; | ||
| import static org.apache.flink.table.descriptors.Rowtime.ROWTIME_WATERMARKS_TYPE; | ||
| import static org.apache.flink.table.descriptors.Rowtime.ROWTIME_WATERMARKS_TYPE_VALUE_CUSTOM; | ||
| import static org.apache.flink.table.descriptors.Rowtime.ROWTIME_WATERMARKS_TYPE_VALUE_FROM_SOURCE; | ||
| import static org.apache.flink.table.descriptors.Rowtime.ROWTIME_WATERMARKS_TYPE_VALUE_PERIODIC_ASCENDING; | ||
| import static org.apache.flink.table.descriptors.Rowtime.ROWTIME_WATERMARKS_TYPE_VALUE_PERIODIC_BOUNDED; | ||
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| /** | ||
| * Validator for {@link Rowtime}. | ||
| */ | ||
| @PublicEvolving | ||
| public class RowtimeValidator implements DescriptorValidator { | ||
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| private final boolean supportsSourceTimestamps; | ||
| private final boolean supportsSourceWatermarks; | ||
| private final String prefix; | ||
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| public RowtimeValidator(boolean supportsSourceTimestamps, boolean supportsSourceWatermarks) { | ||
| this(supportsSourceTimestamps, supportsSourceWatermarks, ""); | ||
| } | ||
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| public RowtimeValidator(boolean supportsSourceTimestamps, boolean supportsSourceWatermarks, String prefix) { | ||
| this.supportsSourceTimestamps = supportsSourceTimestamps; | ||
| this.supportsSourceWatermarks = supportsSourceWatermarks; | ||
| this.prefix = prefix; | ||
| } | ||
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| @Override | ||
| public void validate(DescriptorProperties properties) { | ||
| Consumer<String> timestampExistingField = | ||
| s -> properties.validateString(prefix + ROWTIME_TIMESTAMPS_FROM, false, 1); | ||
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| Consumer<String> timestampCustom = s -> { | ||
| properties.validateString(prefix + ROWTIME_TIMESTAMPS_CLASS, false, 1); | ||
| properties.validateString(prefix + ROWTIME_TIMESTAMPS_SERIALIZED, false, 1); | ||
| }; | ||
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| Map<String, Consumer<String>> timestampsValidation = new HashMap<>(); | ||
| if (supportsSourceTimestamps) { | ||
| timestampsValidation.put(ROWTIME_TIMESTAMPS_TYPE_VALUE_FROM_FIELD, timestampExistingField); | ||
| timestampsValidation.put(ROWTIME_TIMESTAMPS_TYPE_VALUE_FROM_SOURCE, DescriptorProperties.noValidation()); | ||
| timestampsValidation.put(ROWTIME_TIMESTAMPS_TYPE_VALUE_CUSTOM, timestampCustom); | ||
| } else { | ||
| timestampsValidation.put(ROWTIME_TIMESTAMPS_TYPE_VALUE_FROM_FIELD, timestampExistingField); | ||
| timestampsValidation.put(ROWTIME_TIMESTAMPS_TYPE_VALUE_CUSTOM, timestampCustom); | ||
| } | ||
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| properties.validateEnum(prefix + ROWTIME_TIMESTAMPS_TYPE, false, timestampsValidation); | ||
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| Consumer<String> watermarkPeriodicBounded = | ||
| s -> properties.validateLong(prefix + ROWTIME_WATERMARKS_DELAY, false, 0); | ||
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| Consumer<String> watermarkCustom = s -> { | ||
| properties.validateString(prefix + ROWTIME_WATERMARKS_CLASS, false, 1); | ||
| properties.validateString(prefix + ROWTIME_WATERMARKS_SERIALIZED, false, 1); | ||
| }; | ||
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| Map<String, Consumer<String>> watermarksValidation = new HashMap<>(); | ||
| if (supportsSourceWatermarks) { | ||
| watermarksValidation.put(ROWTIME_WATERMARKS_TYPE_VALUE_PERIODIC_ASCENDING, DescriptorProperties.noValidation()); | ||
| watermarksValidation.put(ROWTIME_WATERMARKS_TYPE_VALUE_PERIODIC_BOUNDED, watermarkPeriodicBounded); | ||
| watermarksValidation.put(ROWTIME_WATERMARKS_TYPE_VALUE_FROM_SOURCE, DescriptorProperties.noValidation()); | ||
| watermarksValidation.put(ROWTIME_WATERMARKS_TYPE_VALUE_CUSTOM, watermarkCustom); | ||
| } else { | ||
| watermarksValidation.put(ROWTIME_WATERMARKS_TYPE_VALUE_PERIODIC_ASCENDING, DescriptorProperties.noValidation()); | ||
| watermarksValidation.put(ROWTIME_WATERMARKS_TYPE_VALUE_PERIODIC_BOUNDED, watermarkPeriodicBounded); | ||
| watermarksValidation.put(ROWTIME_WATERMARKS_TYPE_VALUE_CUSTOM, watermarkCustom); | ||
| } | ||
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| properties.validateEnum(prefix + ROWTIME_WATERMARKS_TYPE, false, watermarksValidation); | ||
| } | ||
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| // utilities | ||
|
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| public static Optional<Tuple2<TimestampExtractor, WatermarkStrategy>> getRowtimeComponents( | ||
| DescriptorProperties properties, String prefix) { | ||
| // create timestamp extractor | ||
| TimestampExtractor extractor; | ||
| Optional<String> t = properties.getOptionalString(prefix + ROWTIME_TIMESTAMPS_TYPE); | ||
| if (!t.isPresent()) { | ||
| return Optional.empty(); | ||
| } | ||
|
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| switch (t.get()) { | ||
| case ROWTIME_TIMESTAMPS_TYPE_VALUE_FROM_FIELD: | ||
| String field = properties.getString(prefix + ROWTIME_TIMESTAMPS_FROM); | ||
| extractor = new ExistingField(field); | ||
| break; | ||
| case ROWTIME_TIMESTAMPS_TYPE_VALUE_FROM_SOURCE: | ||
| extractor = StreamRecordTimestamp.INSTANCE; | ||
| break; | ||
| case ROWTIME_TIMESTAMPS_TYPE_VALUE_CUSTOM: | ||
| Class<TimestampExtractor> clazz = properties.getClass( | ||
| prefix + ROWTIME_TIMESTAMPS_CLASS, TimestampExtractor.class); | ||
| extractor = EncodingUtils.decodeStringToObject( | ||
| properties.getString(prefix + ROWTIME_TIMESTAMPS_SERIALIZED), | ||
| clazz); | ||
| break; | ||
| default: | ||
| throw new ValidationException("Unsupported rowtime timestamps type: " + t.get()); | ||
| } | ||
|
|
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| // create watermark strategy | ||
| WatermarkStrategy strategy; | ||
| String s = properties.getString(prefix + ROWTIME_WATERMARKS_TYPE); | ||
| switch (s) { | ||
| case ROWTIME_WATERMARKS_TYPE_VALUE_PERIODIC_ASCENDING: | ||
| strategy = new AscendingTimestamps(); | ||
| break; | ||
| case ROWTIME_WATERMARKS_TYPE_VALUE_PERIODIC_BOUNDED: | ||
| long delay = properties.getLong(prefix + ROWTIME_WATERMARKS_DELAY); | ||
| strategy = new BoundedOutOfOrderTimestamps(delay); | ||
| break; | ||
| case ROWTIME_WATERMARKS_TYPE_VALUE_FROM_SOURCE: | ||
| strategy = PreserveWatermarks.INSTANCE; | ||
| break; | ||
| case ROWTIME_WATERMARKS_TYPE_VALUE_CUSTOM: | ||
| Class<WatermarkStrategy> clazz = properties.getClass( | ||
| prefix + ROWTIME_WATERMARKS_CLASS, WatermarkStrategy.class); | ||
| strategy = EncodingUtils.decodeStringToObject( | ||
| properties.getString(prefix + ROWTIME_WATERMARKS_SERIALIZED), | ||
| clazz); | ||
| break; | ||
| default: | ||
| throw new RuntimeException("Unsupported rowtime timestamps type: " + s); | ||
| } | ||
|
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| return Optional.of(new Tuple2<>(extractor, strategy)); | ||
| } | ||
| } |
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