eolivelli commented on a change in pull request #10410: URL: https://github.com/apache/pulsar/pull/10410#discussion_r644517290
########## File path: pulsar-io/kafka-connect-adaptor/src/main/java/org/apache/pulsar/io/kafka/connect/schema/PulsarSchemaToKafkaSchema.java ########## @@ -0,0 +1,106 @@ +/** + * 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.io.kafka.connect.schema; + +import com.google.common.cache.Cache; +import com.google.common.cache.CacheBuilder; +import com.google.common.collect.ImmutableMap; +import com.google.common.util.concurrent.ExecutionError; +import com.google.common.util.concurrent.UncheckedExecutionException; +import lombok.extern.slf4j.Slf4j; +import org.apache.kafka.connect.data.Date; +import org.apache.kafka.connect.data.Schema; +import org.apache.kafka.connect.data.SchemaBuilder; +import org.apache.pulsar.client.impl.schema.KeyValueSchema; +import org.apache.pulsar.common.schema.SchemaType; +import org.apache.pulsar.kafka.shade.io.confluent.connect.avro.AvroData; + +import java.util.concurrent.ExecutionException; +import java.util.concurrent.TimeUnit; + +import static java.nio.charset.StandardCharsets.UTF_8; + +@Slf4j +public class PulsarSchemaToKafkaSchema { + private final static ImmutableMap<SchemaType, Schema> pulsarSchemaTypeToKafkaSchema; + private static final AvroData avroData = new AvroData(1000); + private static final Cache<byte[], Schema> schemaCache = + CacheBuilder.newBuilder().maximumSize(10000) + .expireAfterAccess(30, TimeUnit.MINUTES).build(); + + static { + pulsarSchemaTypeToKafkaSchema = ImmutableMap.<SchemaType, Schema>builder() + .put(SchemaType.BOOLEAN, Schema.BOOLEAN_SCHEMA) + .put(SchemaType.INT8, Schema.INT8_SCHEMA) + .put(SchemaType.INT16, Schema.INT16_SCHEMA) + .put(SchemaType.INT32, Schema.INT32_SCHEMA) + .put(SchemaType.INT64, Schema.INT64_SCHEMA) + .put(SchemaType.FLOAT, Schema.FLOAT32_SCHEMA) + .put(SchemaType.DOUBLE, Schema.FLOAT64_SCHEMA) + .put(SchemaType.STRING, Schema.STRING_SCHEMA) + .put(SchemaType.BYTES, Schema.BYTES_SCHEMA) + .put(SchemaType.DATE, Date.SCHEMA) + .build(); + } + + // Parse json to shaded schema + private static org.apache.pulsar.kafka.shade.avro.Schema parseAvroSchema(String schemaJson) { + final org.apache.pulsar.kafka.shade.avro.Schema.Parser parser = new org.apache.pulsar.kafka.shade.avro.Schema.Parser(); + parser.setValidateDefaults(false); + return parser.parse(schemaJson); + } + + public static Schema getKafkaConnectSchema(org.apache.pulsar.client.api.Schema pulsarSchema) { + if (pulsarSchema != null && pulsarSchema.getSchemaInfo() != null) { + if (pulsarSchemaTypeToKafkaSchema.containsKey(pulsarSchema.getSchemaInfo().getType())) { + return pulsarSchemaTypeToKafkaSchema.get(pulsarSchema.getSchemaInfo().getType()); + } + + try { + return schemaCache.get(pulsarSchema.getSchemaInfo().getSchema(), () -> { + if (pulsarSchema.getSchemaInfo().getType() == SchemaType.KEY_VALUE) { + KeyValueSchema kvSchema = (KeyValueSchema) pulsarSchema; + return SchemaBuilder.map(getKafkaConnectSchema(kvSchema.getKeySchema()), + getKafkaConnectSchema(kvSchema.getKeySchema())) + .build(); + } + org.apache.pulsar.kafka.shade.avro.Schema avroSchema = + parseAvroSchema(new String(pulsarSchema.getSchemaInfo().getSchema(), UTF_8)); + return avroData.toConnectSchema(avroSchema); + }); + } catch (ExecutionException | UncheckedExecutionException | ExecutionError ee) { + logAndThrowOnUnsupportedSchema(pulsarSchema, "Failed to convert to Kafka Schema.", ee); + } + } + + logAndThrowOnUnsupportedSchema(pulsarSchema, "Schema is required.", null); + return null; + } + + private static void logAndThrowOnUnsupportedSchema(org.apache.pulsar.client.api.Schema pulsarSchema, Review comment: that about returning the IllegalStateException ? this way you will call the method this way: `throws logAndThrowOnUnsupportedSchema(pulsarSchema, "Schema is required.", null);` it will be clearer for the reader and for javac about the outcome of the execution ########## File path: pulsar-io/kafka-connect-adaptor/src/main/java/org/apache/pulsar/io/kafka/connect/schema/PulsarSchemaToKafkaSchema.java ########## @@ -0,0 +1,106 @@ +/** + * 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.io.kafka.connect.schema; + +import com.google.common.cache.Cache; +import com.google.common.cache.CacheBuilder; +import com.google.common.collect.ImmutableMap; +import com.google.common.util.concurrent.ExecutionError; +import com.google.common.util.concurrent.UncheckedExecutionException; +import lombok.extern.slf4j.Slf4j; +import org.apache.kafka.connect.data.Date; +import org.apache.kafka.connect.data.Schema; +import org.apache.kafka.connect.data.SchemaBuilder; +import org.apache.pulsar.client.impl.schema.KeyValueSchema; +import org.apache.pulsar.common.schema.SchemaType; +import org.apache.pulsar.kafka.shade.io.confluent.connect.avro.AvroData; + +import java.util.concurrent.ExecutionException; +import java.util.concurrent.TimeUnit; + +import static java.nio.charset.StandardCharsets.UTF_8; + +@Slf4j +public class PulsarSchemaToKafkaSchema { + private final static ImmutableMap<SchemaType, Schema> pulsarSchemaTypeToKafkaSchema; + private static final AvroData avroData = new AvroData(1000); + private static final Cache<byte[], Schema> schemaCache = + CacheBuilder.newBuilder().maximumSize(10000) + .expireAfterAccess(30, TimeUnit.MINUTES).build(); + + static { + pulsarSchemaTypeToKafkaSchema = ImmutableMap.<SchemaType, Schema>builder() + .put(SchemaType.BOOLEAN, Schema.BOOLEAN_SCHEMA) + .put(SchemaType.INT8, Schema.INT8_SCHEMA) + .put(SchemaType.INT16, Schema.INT16_SCHEMA) + .put(SchemaType.INT32, Schema.INT32_SCHEMA) + .put(SchemaType.INT64, Schema.INT64_SCHEMA) + .put(SchemaType.FLOAT, Schema.FLOAT32_SCHEMA) + .put(SchemaType.DOUBLE, Schema.FLOAT64_SCHEMA) + .put(SchemaType.STRING, Schema.STRING_SCHEMA) + .put(SchemaType.BYTES, Schema.BYTES_SCHEMA) + .put(SchemaType.DATE, Date.SCHEMA) + .build(); + } + + // Parse json to shaded schema + private static org.apache.pulsar.kafka.shade.avro.Schema parseAvroSchema(String schemaJson) { + final org.apache.pulsar.kafka.shade.avro.Schema.Parser parser = new org.apache.pulsar.kafka.shade.avro.Schema.Parser(); + parser.setValidateDefaults(false); + return parser.parse(schemaJson); + } + + public static Schema getKafkaConnectSchema(org.apache.pulsar.client.api.Schema pulsarSchema) { + if (pulsarSchema != null && pulsarSchema.getSchemaInfo() != null) { + if (pulsarSchemaTypeToKafkaSchema.containsKey(pulsarSchema.getSchemaInfo().getType())) { + return pulsarSchemaTypeToKafkaSchema.get(pulsarSchema.getSchemaInfo().getType()); + } + + try { + return schemaCache.get(pulsarSchema.getSchemaInfo().getSchema(), () -> { + if (pulsarSchema.getSchemaInfo().getType() == SchemaType.KEY_VALUE) { + KeyValueSchema kvSchema = (KeyValueSchema) pulsarSchema; + return SchemaBuilder.map(getKafkaConnectSchema(kvSchema.getKeySchema()), + getKafkaConnectSchema(kvSchema.getKeySchema())) Review comment: should this be `getValueSchema` ? -- This is an automated message from the Apache Git Service. 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