AvroTestUtil.java

/*
 * 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.nifi.processors.avro;

import org.apache.avro.Schema;
import org.apache.avro.file.DataFileWriter;
import org.apache.avro.generic.GenericRecord;
import org.apache.avro.io.DatumWriter;
import org.apache.nifi.stream.io.ByteArrayOutputStream;

import java.io.IOException;

public class AvroTestUtil {

    public static ByteArrayOutputStream serializeAvroRecord(final Schema schema, final DatumWriter<GenericRecord> datumWriter, final GenericRecord... users) throws IOException {
        ByteArrayOutputStream out = new ByteArrayOutputStream();
        try (DataFileWriter<GenericRecord> dataFileWriter = new DataFileWriter<>(datumWriter)) {
            dataFileWriter.create(schema, out);
            for (final GenericRecord user : users) {
                dataFileWriter.append(user);
            }
        }
        return out;
    }

}