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[improve][function] Support Record<?> as Function output type
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109 changes: 109 additions & 0 deletions
109
...unctions/api-java/src/main/java/org/apache/pulsar/functions/api/utils/FunctionRecord.java
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| @@ -0,0 +1,109 @@ | ||
| /** | ||
| * 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.pulsar.functions.api.utils; | ||
|
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| import java.util.Map; | ||
| import java.util.Optional; | ||
| import lombok.Builder; | ||
| import org.apache.pulsar.client.api.Schema; | ||
| import org.apache.pulsar.functions.api.Context; | ||
| import org.apache.pulsar.functions.api.Record; | ||
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| @Builder(builderMethodName = "") | ||
| public class FunctionRecord<T> implements Record<T> { | ||
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| private final T value; | ||
| private final String topicName; | ||
| private final String destinationTopic; | ||
| private final Map<String, String> properties; | ||
| private final String key; | ||
| private final Schema<T> schema; | ||
| private final Long eventTime; | ||
| private final String partitionId; | ||
| private final Integer partitionIndex; | ||
| private final Long recordSequence; | ||
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| public static <T> FunctionRecord.FunctionRecordBuilder<T> from(Context context) { | ||
| Record<?> currentRecord = context.getCurrentRecord(); | ||
| FunctionRecordBuilder<T> builder = new FunctionRecordBuilder<T>() | ||
| .destinationTopic(context.getOutputTopic()) | ||
| .properties(currentRecord.getProperties()); | ||
| currentRecord.getTopicName().ifPresent(builder::topicName); | ||
| currentRecord.getKey().ifPresent(builder::key); | ||
| currentRecord.getEventTime().ifPresent(builder::eventTime); | ||
| currentRecord.getPartitionId().ifPresent(builder::partitionId); | ||
| currentRecord.getPartitionIndex().ifPresent(builder::partitionIndex); | ||
| currentRecord.getRecordSequence().ifPresent(builder::recordSequence); | ||
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| // TODO: add message | ||
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| return builder; | ||
| } | ||
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| @Override | ||
| public T getValue() { | ||
| return value; | ||
| } | ||
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| @Override | ||
| public Optional<String> getTopicName() { | ||
| return Optional.ofNullable(topicName); | ||
| } | ||
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| @Override | ||
| public Optional<String> getDestinationTopic() { | ||
| return Optional.ofNullable(destinationTopic); | ||
| } | ||
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| @Override | ||
| public Map<String, String> getProperties() { | ||
| return properties; | ||
| } | ||
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| @Override | ||
| public Optional<String> getKey() { | ||
| return Optional.ofNullable(key); | ||
| } | ||
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| @Override | ||
| public Schema<T> getSchema() { | ||
| return schema; | ||
| } | ||
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| @Override | ||
| public Optional<Long> getEventTime() { | ||
| return Optional.ofNullable(eventTime); | ||
| } | ||
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| @Override | ||
| public Optional<String> getPartitionId() { | ||
| return Optional.ofNullable(partitionId); | ||
| } | ||
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| @Override | ||
| public Optional<Integer> getPartitionIndex() { | ||
| return Optional.ofNullable(partitionIndex); | ||
| } | ||
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| @Override | ||
| public Optional<Long> getRecordSequence() { | ||
| return Optional.ofNullable(recordSequence); | ||
| } | ||
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| } |
116 changes: 116 additions & 0 deletions
116
...tions/instance/src/main/java/org/apache/pulsar/functions/instance/AbstractSinkRecord.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,116 @@ | ||
| /** | ||
| * 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.pulsar.functions.instance; | ||
|
|
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| import java.util.Optional; | ||
| import lombok.EqualsAndHashCode; | ||
| import lombok.ToString; | ||
| import org.apache.pulsar.client.api.Schema; | ||
| import org.apache.pulsar.client.impl.schema.AutoConsumeSchema; | ||
| import org.apache.pulsar.client.impl.schema.KeyValueSchemaImpl; | ||
| import org.apache.pulsar.functions.api.KVRecord; | ||
| import org.apache.pulsar.functions.api.Record; | ||
| import org.apache.pulsar.functions.source.PulsarRecord; | ||
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| @EqualsAndHashCode | ||
| @ToString | ||
| public abstract class AbstractSinkRecord<T> implements Record<T> { | ||
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| private final Record<?> sourceRecord; | ||
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| protected AbstractSinkRecord(Record<?> sourceRecord) { | ||
| this.sourceRecord = sourceRecord; | ||
| } | ||
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| public Record<?> getSourceRecord() { | ||
| return sourceRecord; | ||
| } | ||
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| @Override | ||
| public Optional<String> getTopicName() { | ||
| return sourceRecord.getTopicName(); | ||
| } | ||
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| @Override | ||
| public void ack() { | ||
| sourceRecord.ack(); | ||
| } | ||
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| /** | ||
| * Some sink sometimes wants to control the ack type. | ||
| */ | ||
| public void cumulativeAck() { | ||
| if (sourceRecord instanceof PulsarRecord) { | ||
| PulsarRecord pulsarRecord = (PulsarRecord) sourceRecord; | ||
| pulsarRecord.cumulativeAck(); | ||
| } else { | ||
| throw new RuntimeException("SourceRecord class type must be PulsarRecord"); | ||
| } | ||
| } | ||
|
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| /** | ||
| * Some sink sometimes wants to control the ack type. | ||
| */ | ||
| public void individualAck() { | ||
| if (sourceRecord instanceof PulsarRecord) { | ||
| PulsarRecord pulsarRecord = (PulsarRecord) sourceRecord; | ||
| pulsarRecord.individualAck(); | ||
| } else { | ||
| throw new RuntimeException("SourceRecord class type must be PulsarRecord"); | ||
| } | ||
| } | ||
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| @Override | ||
| public void fail() { | ||
| sourceRecord.fail(); | ||
| } | ||
|
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| protected static <T> Schema<T> getRecordSchema(Record<T> record) { | ||
| if (record == null) { | ||
| return null; | ||
| } | ||
|
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| if (record.getSchema() != null) { | ||
| // unwrap actual schema | ||
| Schema<T> schema = record.getSchema(); | ||
| // AutoConsumeSchema is a special schema, that comes into play | ||
| // when the Sink is going to handle any Schema | ||
| // usually you see Sink<GenericObject> or Sink<GenericRecord> in this case | ||
| if (schema instanceof AutoConsumeSchema) { | ||
| // extract the Schema from the message, this is the most accurate schema we have | ||
| // see PIP-85 | ||
| if (record.getMessage().isPresent() | ||
| && record.getMessage().get().getReaderSchema().isPresent()) { | ||
| schema = (Schema<T>) record.getMessage().get().getReaderSchema().get(); | ||
| } else { | ||
| schema = (Schema<T>) ((AutoConsumeSchema) schema).getInternalSchema(); | ||
| } | ||
| } | ||
| return schema; | ||
| } | ||
|
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| if (record instanceof KVRecord) { | ||
| KVRecord kvRecord = (KVRecord) record; | ||
| return KeyValueSchemaImpl.of(kvRecord.getKeySchema(), kvRecord.getValueSchema(), | ||
| kvRecord.getKeyValueEncodingType()); | ||
| } | ||
|
|
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| return null; | ||
| } | ||
| } |
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