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https://issues.apache.org/jira/browse/FLINK-9679?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16571404#comment-16571404
]
ASF GitHub Bot commented on FLINK-9679:
---------------------------------------
dawidwys commented on a change in pull request #6259: [FLINK-9679] Implement
AvroSerializationSchema
URL: https://github.com/apache/flink/pull/6259#discussion_r208168876
##########
File path:
flink-formats/flink-avro/src/main/java/org/apache/flink/formats/avro/RegistryAvroSerializationSchema.java
##########
@@ -0,0 +1,76 @@
+/*
+ * 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.flink.formats.avro;
+
+import org.apache.avro.io.Encoder;
+import org.apache.avro.specific.SpecificRecord;
+
+import java.io.IOException;
+
+/**
+ * Serialization schema that serializes from Avro binary format.
+ *
+ * @param <T> type of record it produces
+ */
+public class RegistryAvroSerializationSchema<T> extends
AvroSerializationSchema<T> {
+
+ private static final long serialVersionUID = -6766681879020862312L;
+
+ /** Provider for schema coder. Used for initializing in each task. */
+ private final SchemaCoder.SchemaCoderProvider schemaCoderProvider;
+
+ /** Class to serialize to. */
+ private final Class<T> recordClazz;
+
+ /**
+ * Creates Avro Serialization schema.
+ *
+ * @param recordClazz class to which serialize which is
+ * {@link SpecificRecord}.
+ * @param schemaCoderProvider schema provider that allows instantiation
of {@link SchemaCoder} that will be used for
+ * schema writing
+ */
+ public RegistryAvroSerializationSchema(Class<T> recordClazz,
SchemaCoder.SchemaCoderProvider schemaCoderProvider) {
+ super(recordClazz);
+ this.schemaCoderProvider = schemaCoderProvider;
+ this.recordClazz = recordClazz;
+
+ }
+
+ @Override
+ public byte[] serialize(T object) {
+ checkAvroInitialized();
+
+ if (object == null) {
+ return null;
+ } else {
+ try {
+ Encoder encoder = getEncoder();
+ byte[] bytes = schemaCoderProvider.get()
+ .writeSchema(recordClazz,
getOutputStream());
+ getDatumWriter().write(object, encoder);
+ encoder.flush();
+
+ return bytes;
Review comment:
`bytes` contain only serialized schema without the object. You should return
the contents of encoder.
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> Implement AvroSerializationSchema
> ---------------------------------
>
> Key: FLINK-9679
> URL: https://issues.apache.org/jira/browse/FLINK-9679
> Project: Flink
> Issue Type: Improvement
> Affects Versions: 1.6.0
> Reporter: Yazdan Shirvany
> Assignee: Yazdan Shirvany
> Priority: Major
> Labels: pull-request-available
>
> Implement AvroSerializationSchema using Confluent Schema Registry
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