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change exc handling

This commit is contained in:
Loredana Crusoveanu 2018-07-19 21:09:18 +03:00
parent a5b49fb919
commit bc9558b5fc
3 changed files with 97 additions and 77 deletions
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42
apache-avro/src/main/java/com/baeldung/avro/util/serealization/AvroDeSerealizer.java
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@ -5,29 +5,37 @@ import org.apache.avro.io.DatumReader;
import org.apache.avro.io.Decoder;
import org.apache.avro.io.DecoderFactory;
import org.apache.avro.specific.SpecificDatumReader;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.IOException;
public class AvroDeSerealizer {
public AvroHttpRequest deSerealizeAvroHttpRequestJSON(byte[] data){
DatumReader<AvroHttpRequest> reader = new SpecificDatumReader<>(AvroHttpRequest.class);
Decoder decoder = null;
try {
decoder = DecoderFactory.get().jsonDecoder(AvroHttpRequest.getClassSchema(), new String(data));
return reader.read(null, decoder);
} catch (IOException e) {
return null;
}
}
private static Logger logger = LoggerFactory.getLogger(AvroDeSerealizer.class);
public AvroHttpRequest deSerealizeAvroHttpRequestBinary(byte[] data){
DatumReader<AvroHttpRequest> employeeReader = new SpecificDatumReader<>(AvroHttpRequest.class);
Decoder decoder = DecoderFactory.get().binaryDecoder(data, null);
try {
return employeeReader.read(null, decoder);
} catch (IOException e) {
public AvroHttpRequest deSerealizeAvroHttpRequestJSON(byte[] data) {
DatumReader<AvroHttpRequest> reader = new SpecificDatumReader<>(AvroHttpRequest.class);
Decoder decoder = null;
try {
decoder = DecoderFactory.get()
.jsonDecoder(AvroHttpRequest.getClassSchema(), new String(data));
return reader.read(null, decoder);
} catch (IOException e) {
logger.error("Deserialization error" + e.getMessage());
}
return null;
}
public AvroHttpRequest deSerealizeAvroHttpRequestBinary(byte[] data) {
DatumReader<AvroHttpRequest> employeeReader = new SpecificDatumReader<>(AvroHttpRequest.class);
Decoder decoder = DecoderFactory.get()
.binaryDecoder(data, null);
try {
return employeeReader.read(null, decoder);
} catch (IOException e) {
logger.error("Deserialization error" + e.getMessage());
}
return null;
}
}
}

62
apache-avro/src/main/java/com/baeldung/avro/util/serealization/AvroSerealizer.java
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@ -3,42 +3,48 @@ package com.baeldung.avro.util.serealization;
import com.baeldung.avro.util.model.AvroHttpRequest;
import org.apache.avro.io.*;
import org.apache.avro.specific.SpecificDatumWriter;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
public class AvroSerealizer {
public byte[] serealizeAvroHttpRequestJSON(AvroHttpRequest request){
DatumWriter<AvroHttpRequest> writer = new SpecificDatumWriter<>(AvroHttpRequest.class);
byte[] data = new byte[0];
ByteArrayOutputStream stream = new ByteArrayOutputStream();
Encoder jsonEncoder = null;
try {
jsonEncoder = EncoderFactory.get().jsonEncoder(AvroHttpRequest.getClassSchema(), stream);
writer.write(request, jsonEncoder);
jsonEncoder.flush();
data = stream.toByteArray();
} catch (IOException e) {
data =null;
}
return data;
}
private static final Logger logger = LoggerFactory.getLogger(AvroSerealizer.class);
public byte[] serealizeAvroHttpRequestBinary(AvroHttpRequest request){
DatumWriter<AvroHttpRequest> writer = new SpecificDatumWriter<>(AvroHttpRequest.class);
byte[] data = new byte[0];
ByteArrayOutputStream stream = new ByteArrayOutputStream();
Encoder jsonEncoder = EncoderFactory.get().binaryEncoder(stream,null);
try {
writer.write(request, jsonEncoder);
jsonEncoder.flush();
data = stream.toByteArray();
} catch (IOException e) {
data = null;
public byte[] serealizeAvroHttpRequestJSON(AvroHttpRequest request) {
DatumWriter<AvroHttpRequest> writer = new SpecificDatumWriter<>(AvroHttpRequest.class);
byte[] data = new byte[0];
ByteArrayOutputStream stream = new ByteArrayOutputStream();
Encoder jsonEncoder = null;
try {
jsonEncoder = EncoderFactory.get()
.jsonEncoder(AvroHttpRequest.getClassSchema(), stream);
writer.write(request, jsonEncoder);
jsonEncoder.flush();
data = stream.toByteArray();
} catch (IOException e) {
logger.error("Serialization error " + e.getMessage());
}
return data;
}
return data;
}
public byte[] serealizeAvroHttpRequestBinary(AvroHttpRequest request) {
DatumWriter<AvroHttpRequest> writer = new SpecificDatumWriter<>(AvroHttpRequest.class);
byte[] data = new byte[0];
ByteArrayOutputStream stream = new ByteArrayOutputStream();
Encoder jsonEncoder = EncoderFactory.get()
.binaryEncoder(stream, null);
try {
writer.write(request, jsonEncoder);
jsonEncoder.flush();
data = stream.toByteArray();
} catch (IOException e) {
logger.error("Serialization error " + e.getMessage());
}
return data;
}
}

70
apache-avro/src/test/java/com/baeldung/avro/util/serealization/AvroSerealizerDeSerealizerTest.java
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@ -24,8 +24,10 @@ public class AvroSerealizerDeSerealizerTest {
serealizer = new AvroSerealizer();
deSerealizer = new AvroDeSerealizer();
ClientIdentifier clientIdentifier = ClientIdentifier.newBuilder().
setHostName("localhost").setIpAddress("255.255.255.0").build();
ClientIdentifier clientIdentifier = ClientIdentifier.newBuilder()
.setHostName("localhost")
.setIpAddress("255.255.255.0")
.build();
List<CharSequence> employees = new ArrayList();
employees.add("James");
@ -33,43 +35,47 @@ public class AvroSerealizerDeSerealizerTest {
employees.add("David");
employees.add("Han");
request = AvroHttpRequest.newBuilder().setRequestTime(01l)
.setActive(Active.YES).setClientIdentifier(clientIdentifier)
.setEmployeeNames(employees).build();
request = AvroHttpRequest.newBuilder()
.setRequestTime(01l)
.setActive(Active.YES)
.setClientIdentifier(clientIdentifier)
.setEmployeeNames(employees)
.build();
}
@After
public void tearDown() throws Exception {
}
@Test
public void WhenSerialized_UsingJSONEncoder_ObjectGetsSerialized(){
byte[] data = serealizer.serealizeAvroHttpRequestJSON(request);
assertTrue(Objects.nonNull(data));
assertTrue(data.length > 0);
}
@Test
public void WhenSerialized_UsingJSONEncoder_ObjectGetsSerialized() {
byte[] data = serealizer.serealizeAvroHttpRequestJSON(request);
assertTrue(Objects.nonNull(data));
assertTrue(data.length > 0);
}
@Test
public void WhenSerialized_UsingBinaryEncoder_ObjectGetsSerialized(){
byte[] data = serealizer.serealizeAvroHttpRequestBinary(request);
assertTrue(Objects.nonNull(data));
assertTrue(data.length > 0);
}
@Test
public void WhenSerialized_UsingBinaryEncoder_ObjectGetsSerialized() {
byte[] data = serealizer.serealizeAvroHttpRequestBinary(request);
assertTrue(Objects.nonNull(data));
assertTrue(data.length > 0);
}
@Test
public void WhenDeserialize_UsingJSONDecoder_ActualAndExpectedObjectsAreEqual(){
byte[] data = serealizer.serealizeAvroHttpRequestJSON(request);
AvroHttpRequest actualRequest = deSerealizer.deSerealizeAvroHttpRequestJSON(data);
assertEquals(actualRequest,request);
assertTrue(actualRequest.getRequestTime().equals(request.getRequestTime()));
}
@Test
public void WhenDeserialize_UsingJSONDecoder_ActualAndExpectedObjectsAreEqual() {
byte[] data = serealizer.serealizeAvroHttpRequestJSON(request);
AvroHttpRequest actualRequest = deSerealizer.deSerealizeAvroHttpRequestJSON(data);
assertEquals(actualRequest, request);
assertTrue(actualRequest.getRequestTime()
.equals(request.getRequestTime()));
}
@Test
public void WhenDeserialize_UsingBinaryecoder_ActualAndExpectedObjectsAreEqual(){
byte[] data = serealizer.serealizeAvroHttpRequestBinary(request);
AvroHttpRequest actualRequest = deSerealizer.deSerealizeAvroHttpRequestBinary(data);
assertEquals(actualRequest,request);
assertTrue(actualRequest.getRequestTime().equals(request.getRequestTime()));
@Test
public void WhenDeserialize_UsingBinaryecoder_ActualAndExpectedObjectsAreEqual() {
byte[] data = serealizer.serealizeAvroHttpRequestBinary(request);
AvroHttpRequest actualRequest = deSerealizer.deSerealizeAvroHttpRequestBinary(data);
assertEquals(actualRequest, request);
assertTrue(actualRequest.getRequestTime()
.equals(request.getRequestTime()));
}
}
}