/**
* 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.avro.io.parsing;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.StringReader;
import java.util.Arrays;
import java.util.Collection;
import org.apache.avro.AvroTypeException;
import org.apache.avro.Schema;
import org.apache.avro.SchemaBuilder;
import org.apache.avro.file.DataFileStream;
import org.apache.avro.file.DataFileWriter;
import org.apache.avro.generic.GenericData;
import org.apache.avro.generic.GenericDatumReader;
import org.apache.avro.generic.GenericDatumWriter;
import org.apache.avro.generic.GenericRecordBuilder;
import org.apache.avro.io.Encoder;
import org.apache.avro.io.EncoderFactory;
import org.codehaus.jackson.JsonFactory;
import org.codehaus.jackson.JsonNode;
import org.codehaus.jackson.map.ObjectMapper;
import org.junit.Assert;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.Parameterized;
@RunWith(Parameterized.class)
public class TestResolvingGrammarGenerator {
private final Schema schema;
private final JsonNode data;
public TestResolvingGrammarGenerator(String jsonSchema, String jsonData)
throws IOException {
this.schema = Schema.parse(jsonSchema);
JsonFactory factory = new JsonFactory();
ObjectMapper mapper = new ObjectMapper(factory);
this.data = mapper.readTree(new StringReader(jsonData));
}
@Test
public void test() throws IOException {
ByteArrayOutputStream baos = new ByteArrayOutputStream();
EncoderFactory factory = EncoderFactory.get();
Encoder e = factory.validatingEncoder(schema,
factory.binaryEncoder(baos, null));
ResolvingGrammarGenerator.encode(e, schema, data);
e.flush();
}
@Test
public void testRecordMissingRequiredFieldError() throws Exception {
Schema schemaWithoutField = SchemaBuilder
.record("MyRecord").namespace("ns")
.fields()
.name("field1").type().stringType().noDefault()
.endRecord();
Schema schemaWithField = SchemaBuilder
.record("MyRecord").namespace("ns")
.fields()
.name("field1").type().stringType().noDefault()
.name("field2").type().stringType().noDefault()
.endRecord();
GenericData.Record record = new GenericRecordBuilder(schemaWithoutField).set("field1", "someValue").build();
byte[] data = writeRecord(schemaWithoutField, record);
try {
readRecord(schemaWithField, data);
Assert.fail("Expected exception not thrown");
} catch (AvroTypeException typeException) {
Assert.assertEquals("Incorrect exception message",
"Found ns.MyRecord, expecting ns.MyRecord, missing required field field2", typeException.getMessage());
}
}
@Parameterized.Parameters
public static Collection<Object[]> data() {
Collection<Object[]> ret = Arrays.asList(
new Object[][] {
{ "{ \"type\": \"record\", \"name\": \"r\", \"fields\": [ "
+ " { \"name\" : \"f1\", \"type\": \"int\" }, "
+ " { \"name\" : \"f2\", \"type\": \"float\" } "
+ "] } }",
"{ \"f2\": 10.4, \"f1\": 10 } " },
{ "{ \"type\": \"enum\", \"name\": \"e\", \"symbols\": "
+ "[ \"s1\", \"s2\"] } }", " \"s1\" " },
{ "{ \"type\": \"enum\", \"name\": \"e\", \"symbols\": "
+ "[ \"s1\", \"s2\"] } }", " \"s2\" " },
{ "{ \"type\": \"fixed\", \"name\": \"f\", \"size\": 10 }",
"\"hello\"" },
{ "{ \"type\": \"array\", \"items\": \"int\" }",
"[ 10, 20, 30 ]" },
{ "{ \"type\": \"map\", \"values\": \"int\" }",
"{ \"k1\": 10, \"k3\": 20, \"k3\": 30 }" },
{ "[ \"int\", \"long\" ]", "10" },
{ "\"string\"", "\"hello\"" },
{ "\"bytes\"", "\"hello\"" },
{ "\"int\"", "10" },
{ "\"long\"", "10" },
{ "\"float\"", "10.0" },
{ "\"double\"", "10.0" },
{ "\"boolean\"", "true" },
{ "\"boolean\"", "false" },
{ "\"null\"", "null" },
}
);
return ret;
}
private byte[] writeRecord(Schema schema, GenericData.Record record) throws Exception {
ByteArrayOutputStream byteStream = new ByteArrayOutputStream();
GenericDatumWriter<GenericData.Record> datumWriter = new GenericDatumWriter<GenericData.Record>(schema);
DataFileWriter<GenericData.Record> writer = new DataFileWriter<GenericData.Record>(datumWriter);
try {
writer.create(schema, byteStream);
writer.append(record);
} finally {
writer.close();
}
return byteStream.toByteArray();
}
private GenericData.Record readRecord(Schema schema, byte[] data) throws Exception {
ByteArrayInputStream byteStream = new ByteArrayInputStream(data);
GenericDatumReader<GenericData.Record> datumReader = new GenericDatumReader<GenericData.Record>(schema);
DataFileStream<GenericData.Record> reader = new DataFileStream<GenericData.Record>(byteStream, datumReader);
try {
return reader.next();
} finally {
reader.close();
}
}
}