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AvroItemWriterBuilderTests.java
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AvroItemWriterBuilderTests.java
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/*
* Copyright 2019 the original author or authors.
*
* Licensed 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
*
* https://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.springframework.batch.item.avro.builder;
import java.io.ByteArrayOutputStream;
import org.apache.avro.generic.GenericRecord;
import org.junit.Test;
import org.springframework.batch.item.ExecutionContext;
import org.springframework.batch.item.avro.AvroItemWriter;
import org.springframework.batch.item.avro.example.User;
import org.springframework.batch.item.avro.support.AvroItemWriterTestSupport;
import org.springframework.core.io.WritableResource;
/**
* @author David Turanski
*/
public class AvroItemWriterBuilderTests extends AvroItemWriterTestSupport {
private ByteArrayOutputStream outputStream = new ByteArrayOutputStream(2048);
private WritableResource output = new OutputStreamResource(outputStream);
@Test
public void itemWriterForAvroGeneratedClass() throws Exception {
AvroItemWriter<User> avroItemWriter = new AvroItemWriterBuilder<User>()
.resource(output)
.schema(schemaResource)
.type(User.class)
.build();
avroItemWriter.open(new ExecutionContext());
avroItemWriter.write(this.avroGeneratedUsers());
avroItemWriter.close();
verifyRecordsWithEmbeddedHeader(outputStream.toByteArray(), this.avroGeneratedUsers(), User.class);
}
@Test
public void itemWriterForGenericRecords() throws Exception {
AvroItemWriter<GenericRecord> avroItemWriter = new AvroItemWriterBuilder<GenericRecord>()
.type(GenericRecord.class)
.schema(plainOldUserSchemaResource)
.resource(output)
.build();
avroItemWriter.open(new ExecutionContext());
avroItemWriter.write(this.genericPlainOldUsers());
avroItemWriter.close();
verifyRecordsWithEmbeddedHeader(outputStream.toByteArray(), this.genericPlainOldUsers(), GenericRecord.class);
}
@Test
public void itemWriterForPojos() throws Exception {
AvroItemWriter<PlainOldUser> avroItemWriter = new AvroItemWriterBuilder<PlainOldUser>()
.resource(output)
.schema(plainOldUserSchemaResource)
.type(PlainOldUser.class)
.build();
avroItemWriter.open(new ExecutionContext());
avroItemWriter.write(this.plainOldUsers());
avroItemWriter.close();
verifyRecordsWithEmbeddedHeader(outputStream.toByteArray(), this.plainOldUsers(), PlainOldUser.class);
}
@Test
public void itemWriterWithNoEmbeddedSchema() throws Exception {
AvroItemWriter<PlainOldUser> avroItemWriter = new AvroItemWriterBuilder<PlainOldUser>()
.resource(output)
.type(PlainOldUser.class)
.build();
avroItemWriter.open(new ExecutionContext());
avroItemWriter.write(this.plainOldUsers());
avroItemWriter.close();
verifyRecords(outputStream.toByteArray(), this.plainOldUsers(), PlainOldUser.class, false);
}
@Test(expected = IllegalArgumentException.class)
public void shouldFailWitNoOutput() {
new AvroItemWriterBuilder<GenericRecord>()
.type(GenericRecord.class)
.build();
}
@Test(expected = IllegalArgumentException.class)
public void shouldFailWitNoType() {
new AvroItemWriterBuilder<>()
.resource(output)
.schema(schemaResource)
.build();
}
}