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Polishing.

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Fix formatting.

See #664
This commit is contained in:
Mark Paluch
2023-05-15 11:48:14 +02:00
parent ea17c12f93
commit 767b90911b
10 changed files with 361 additions and 376 deletions
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57
couchbase/transactions/src/main/java/com/example/demo/AirlineGates.java
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@@ -25,40 +25,37 @@ import org.springframework.data.couchbase.core.mapping.Document;
*/
@Document
public class AirlineGates {
@Id
String id;
@Version
Long version;
@QueryIndexed
String name;
String iata;
Long gates;
@Id String id;
@Version Long version;
@QueryIndexed String name;
String iata;
Long gates;
public AirlineGates(String id, String name, String iata, Long gates) {
this.id = id;
this.name = name;
this.iata = iata;
this.gates = gates;
}
public AirlineGates(String id, String name, String iata, Long gates) {
this.id = id;
this.name = name;
this.iata = iata;
this.gates = gates;
}
public String getId() {
return id;
}
public String getId() {
return id;
}
public Long getGates() {
return gates;
}
public Long getGates() {
return gates;
}
public String toString() {
StringBuffer sb = new StringBuffer();
sb.append("{");
sb.append("\"id\":" + id);
sb.append(", \"name\":" + name);
sb.append(", \"iata\":" + iata);
sb.append(", \"gates\":" + gates);
sb.append("}");
public String toString() {
StringBuffer sb = new StringBuffer();
sb.append("{");
sb.append("\"id\":" + id);
sb.append(", \"name\":" + name);
sb.append(", \"iata\":" + iata);
sb.append(", \"gates\":" + gates);
sb.append("}");
return sb.toString();
}
return sb.toString();
}
}

2
couchbase/transactions/src/main/java/com/example/demo/AirlineGatesRepository.java
View File

@@ -22,6 +22,6 @@ import org.springframework.data.couchbase.repository.DynamicProxyable;
* @author Michael Reiche
*/
public interface AirlineGatesRepository
extends CouchbaseRepository<AirlineGates, String>, DynamicProxyable<AirlineGatesRepository> {
extends CouchbaseRepository<AirlineGates, String>, DynamicProxyable<AirlineGatesRepository> {
}

132
couchbase/transactions/src/main/java/com/example/demo/AirlineGatesService.java
View File

@@ -15,88 +15,88 @@
*/
package com.example.demo;
import reactor.core.publisher.Mono;
import org.springframework.data.couchbase.core.CouchbaseTemplate;
import org.springframework.data.couchbase.core.ReactiveCouchbaseTemplate;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import reactor.core.publisher.Mono;
/**
* @author Michael Reiche
*/
@Service
public class AirlineGatesService {
CouchbaseTemplate template;
ReactiveCouchbaseTemplate reactiveTemplate;
AirlineGatesRepository airlineGatesRepository;
CouchbaseTemplate template;
ReactiveCouchbaseTemplate reactiveTemplate;
AirlineGatesRepository airlineGatesRepository;
public AirlineGatesService(CouchbaseTemplate template, AirlineGatesRepository airlineGatesRepository) {
this.template = template;
this.reactiveTemplate = template.reactive();
this.airlineGatesRepository = airlineGatesRepository;
}
public AirlineGatesService(CouchbaseTemplate template, AirlineGatesRepository airlineGatesRepository) {
this.template = template;
this.reactiveTemplate = template.reactive();
this.airlineGatesRepository = airlineGatesRepository;
}
@Transactional
public void transferGates(String fromId, String toId, int gatesToTransfer, RuntimeException exceptionToThrow) {
AirlineGates fromAirlineGates = template.findById(AirlineGates.class).one(fromId);
AirlineGates toAirlineGates = template.findById(AirlineGates.class).one(toId);
toAirlineGates.gates += gatesToTransfer;
fromAirlineGates.gates -= gatesToTransfer;
template.save(fromAirlineGates);
if (exceptionToThrow != null) {
throw exceptionToThrow;
}
template.save(toAirlineGates);
}
@Transactional
public void transferGates(String fromId, String toId, int gatesToTransfer, RuntimeException exceptionToThrow) {
AirlineGates fromAirlineGates = template.findById(AirlineGates.class).one(fromId);
AirlineGates toAirlineGates = template.findById(AirlineGates.class).one(toId);
toAirlineGates.gates += gatesToTransfer;
fromAirlineGates.gates -= gatesToTransfer;
template.save(fromAirlineGates);
if (exceptionToThrow != null) {
throw exceptionToThrow;
}
template.save(toAirlineGates);
}
@Transactional
public void transferGatesRepo(String fromId, String toId, int gatesToTransfer, RuntimeException exceptionToThrow) {
AirlineGates fromAirlineGates = airlineGatesRepository.findById(fromId).orElse(null);
AirlineGates toAirlineGates = airlineGatesRepository.findById(toId).orElse(null);
toAirlineGates.gates += gatesToTransfer;
fromAirlineGates.gates -= gatesToTransfer;
airlineGatesRepository.save(fromAirlineGates);
if (exceptionToThrow != null) {
throw exceptionToThrow;
}
airlineGatesRepository.save(toAirlineGates);
}
@Transactional
public void transferGatesRepo(String fromId, String toId, int gatesToTransfer, RuntimeException exceptionToThrow) {
AirlineGates fromAirlineGates = airlineGatesRepository.findById(fromId).orElse(null);
AirlineGates toAirlineGates = airlineGatesRepository.findById(toId).orElse(null);
toAirlineGates.gates += gatesToTransfer;
fromAirlineGates.gates -= gatesToTransfer;
airlineGatesRepository.save(fromAirlineGates);
if (exceptionToThrow != null) {
throw exceptionToThrow;
}
airlineGatesRepository.save(toAirlineGates);
}
// The @Transactional annotation results in the method of the proxy for the service executing this in a transaction
@Transactional
public Mono<Void> transferGatesReactive(String fromId, String toId, int gatesToTransfer,
RuntimeException exceptionToThrow) {
return Mono.deferContextual(ctx -> {
AirlineGates fromAirlineGates = template.findById(AirlineGates.class).one(fromId);
AirlineGates toAirlineGates = template.findById(AirlineGates.class).one(toId);
toAirlineGates.gates += gatesToTransfer;
fromAirlineGates.gates -= gatesToTransfer;
template.save(fromAirlineGates);
if (exceptionToThrow != null) {
throw exceptionToThrow;
}
return reactiveTemplate.save(toAirlineGates).then();
});
}
// The @Transactional annotation results in the method of the proxy for the service executing this in a transaction
@Transactional
public Mono<Void> transferGatesReactive(String fromId, String toId, int gatesToTransfer,
RuntimeException exceptionToThrow) {
return Mono.deferContextual(ctx -> {
AirlineGates fromAirlineGates = template.findById(AirlineGates.class).one(fromId);
AirlineGates toAirlineGates = template.findById(AirlineGates.class).one(toId);
toAirlineGates.gates += gatesToTransfer;
fromAirlineGates.gates -= gatesToTransfer;
template.save(fromAirlineGates);
if (exceptionToThrow != null) {
throw exceptionToThrow;
}
return reactiveTemplate.save(toAirlineGates).then();
});
}
// This does not have the @Transactional annotation therefore is not executed in a transaction
public AirlineGates save(AirlineGates airlineGates) {
return template.save(airlineGates);
}
// This does not have the @Transactional annotation therefore is not executed in a transaction
public AirlineGates save(AirlineGates airlineGates) {
return template.save(airlineGates);
}
// This does not have the @Transactional annotation therefore is not executed in a transaction
public AirlineGates findById(String id) {
return template.findById(AirlineGates.class).one(id);
}
// This does not have the @Transactional annotation therefore is not executed in a transaction
public AirlineGates findById(String id) {
return template.findById(AirlineGates.class).one(id);
}
// This does not have the @Transactional annotation therefore is not executed in a transaction
public AirlineGates saveRepo(AirlineGates airlineGates) {
return airlineGatesRepository.save(airlineGates);
}
// This does not have the @Transactional annotation therefore is not executed in a transaction
public AirlineGates saveRepo(AirlineGates airlineGates) {
return airlineGatesRepository.save(airlineGates);
}
// This does not have the @Transactional annotation therefore is not executed in a transaction
public AirlineGates findByIdRepo(String id) {
return airlineGatesRepository.findById(id).orElse(null);
}
// This does not have the @Transactional annotation therefore is not executed in a transaction
public AirlineGates findByIdRepo(String id) {
return airlineGatesRepository.findById(id).orElse(null);
}
}

151
couchbase/transactions/src/main/java/com/example/demo/CmdRunner.java
View File

@@ -23,98 +23,93 @@ import org.springframework.stereotype.Component;
import org.springframework.util.Assert;
/**
* Components of the type CommandLineRunner are called right after the application start up. So the method *run* is called as
* soon as the application starts.
* Components of the type CommandLineRunner are called right after the application start up. So the method *run* is
* called as soon as the application starts.
*
* @author Michael Reiche
*/
@Component
public class CmdRunner implements CommandLineRunner {
@Autowired
CouchbaseTemplate template;
@Autowired
AirlineGatesService airlineGatesService;
@Autowired CouchbaseTemplate template;
@Autowired AirlineGatesService airlineGatesService;
// @Override
public void run(String... strings) {
// @Override
public void run(String... strings) {
try { // remove leftovers from previous run
template.removeById(AirlineGates.class).one("1");
} catch (Exception e) {
}
try {
template.removeById(AirlineGates.class).one("2");
} catch (Exception e) {
}
try { // remove leftovers from previous run
template.removeById(AirlineGates.class).one("1");
} catch (Exception e) {}
try {
template.removeById(AirlineGates.class).one("2");
} catch (Exception e) {}
AirlineGates airlineGates1 = new AirlineGates("1", "American Airlines", "JFK", Long.valueOf(200)); // 1
AirlineGates airlineGates2 = new AirlineGates("2", "Lufthansa", "JFK", Long.valueOf(200));
AirlineGates saved1 = airlineGatesService.save(airlineGates1);
AirlineGates saved2 = airlineGatesService.save(airlineGates2);
AirlineGates found_a_1 = airlineGatesService.findById(saved1.getId()); // 2
AirlineGates found_a_2 = airlineGatesService.findById(saved2.getId());
System.err.println("initialized airlines");
System.err.println(" found before transferGates: " + found_a_1);
System.err.println(" found before transferGates: " + found_a_2);
// move 50 gates from airline1 to airline2
int gatesToTransfer = 50;
System.err.println("===============================================================");
System.err.println("this transferGates attempt will succeed. transferring " + gatesToTransfer);
AirlineGates airlineGates1 = new AirlineGates("1", "American Airlines", "JFK", Long.valueOf(200)); // 1
AirlineGates airlineGates2 = new AirlineGates("2", "Lufthansa", "JFK", Long.valueOf(200));
AirlineGates saved1 = airlineGatesService.save(airlineGates1);
AirlineGates saved2 = airlineGatesService.save(airlineGates2);
AirlineGates found_a_1 = airlineGatesService.findById(saved1.getId()); // 2
AirlineGates found_a_2 = airlineGatesService.findById(saved2.getId());
System.err.println("initialized airlines");
System.err.println(" found before transferGates: " + found_a_1);
System.err.println(" found before transferGates: " + found_a_2);
// move 50 gates from airline1 to airline2
int gatesToTransfer = 50;
System.err.println("===============================================================");
System.err.println("this transferGates attempt will succeed. transferring " + gatesToTransfer);
airlineGatesService.transferGates(airlineGates1.getId(), airlineGates2.getId(), gatesToTransfer, null); // 3
airlineGatesService.transferGates(airlineGates1.getId(), airlineGates2.getId(), gatesToTransfer, null); // 3
AirlineGates found_b_1 = airlineGatesService.findById(airlineGates1.getId());
AirlineGates found_b_2 = airlineGatesService.findById(airlineGates2.getId());
System.err.println(" found after transferGates: " + found_b_1); // 4
System.err.println(" found after transferGates: " + found_b_2);
Assert.isTrue(found_b_1.getGates().equals(found_a_1.getGates() - gatesToTransfer), "should have transferred");
Assert.isTrue(found_b_2.getGates().equals(found_a_1.getGates() + gatesToTransfer), "should have transferred");
System.err.println("===============================================================");
gatesToTransfer = 44;
System.err.println("this transferGates attempt will fail. transferring " + gatesToTransfer);
// attempt to move 44 gates from airline1 to airline2, but it fails.
try {
AirlineGates found_b_1 = airlineGatesService.findById(airlineGates1.getId());
AirlineGates found_b_2 = airlineGatesService.findById(airlineGates2.getId());
System.err.println(" found after transferGates: " + found_b_1); // 4
System.err.println(" found after transferGates: " + found_b_2);
Assert.isTrue(found_b_1.getGates().equals(found_a_1.getGates() - gatesToTransfer), "should have transferred");
Assert.isTrue(found_b_2.getGates().equals(found_a_1.getGates() + gatesToTransfer), "should have transferred");
System.err.println("===============================================================");
gatesToTransfer = 44;
System.err.println("this transferGates attempt will fail. transferring " + gatesToTransfer);
// attempt to move 44 gates from airline1 to airline2, but it fails.
try {
airlineGatesService.transferGates(airlineGates1.getId(), airlineGates2.getId(), 44, new SimulateErrorException());
airlineGatesService.transferGates(airlineGates1.getId(), airlineGates2.getId(), 44, new SimulateErrorException());
} catch (RuntimeException rte) {
if (!(rte instanceof TransactionSystemUnambiguousException) && rte != null
&& rte.getCause() instanceof SimulateErrorException) {
throw rte;
}
System.err.println(" got exception " + rte);
}
AirlineGates found_c_1 = airlineGatesService.findById(airlineGates1.getId());
AirlineGates found_c_2 = airlineGatesService.findById(airlineGates2.getId());
System.err.println(" found after transferGates: " + found_c_1);
System.err.println(" found after transferGates: " + found_c_2);
Assert.isTrue(found_c_1.getGates().equals(found_b_1.getGates()), "should be same as previous");
Assert.isTrue(found_c_2.getGates().equals(found_b_2.getGates()), "should be same as previous");
System.err.println("===============================================================");
gatesToTransfer = 44;
System.err.println("this transferGates attempt will succeed. transferring " + gatesToTransfer);
try {
} catch (RuntimeException rte) {
if (!(rte instanceof TransactionSystemUnambiguousException) && rte != null
&& rte.getCause() instanceof SimulateErrorException) {
throw rte;
}
System.err.println(" got exception " + rte);
}
AirlineGates found_c_1 = airlineGatesService.findById(airlineGates1.getId());
AirlineGates found_c_2 = airlineGatesService.findById(airlineGates2.getId());
System.err.println(" found after transferGates: " + found_c_1);
System.err.println(" found after transferGates: " + found_c_2);
Assert.isTrue(found_c_1.getGates().equals(found_b_1.getGates()), "should be same as previous");
Assert.isTrue(found_c_2.getGates().equals(found_b_2.getGates()), "should be same as previous");
System.err.println("===============================================================");
gatesToTransfer = 44;
System.err.println("this transferGates attempt will succeed. transferring " + gatesToTransfer);
try {
airlineGatesService.transferGatesReactive(airlineGates1.getId(), airlineGates2.getId(), gatesToTransfer, null)
.block();
airlineGatesService.transferGatesReactive(airlineGates1.getId(), airlineGates2.getId(), gatesToTransfer, null)
.block();
} catch (RuntimeException rte) {
if (!(rte instanceof TransactionSystemUnambiguousException) && rte != null
&& rte.getCause() instanceof SimulateErrorException) {
throw rte;
}
System.err.println(" got exception " + rte);
}
AirlineGates found_d_1 = airlineGatesService.findById(airlineGates1.getId());
AirlineGates found_d_2 = airlineGatesService.findById(airlineGates2.getId());
System.err.println(" found after transferGates: " + found_d_1);
System.err.println(" found after transferGates: " + found_d_2);
Assert.isTrue(found_d_1.getGates().equals(found_c_1.getGates() - gatesToTransfer), "should have transferred");
Assert.isTrue(found_d_2.getGates().equals(found_c_2.getGates() + gatesToTransfer), "should have transferred");
System.err.println("===============================================================");
}
} catch (RuntimeException rte) {
if (!(rte instanceof TransactionSystemUnambiguousException) && rte != null
&& rte.getCause() instanceof SimulateErrorException) {
throw rte;
}
System.err.println(" got exception " + rte);
}
AirlineGates found_d_1 = airlineGatesService.findById(airlineGates1.getId());
AirlineGates found_d_2 = airlineGatesService.findById(airlineGates2.getId());
System.err.println(" found after transferGates: " + found_d_1);
System.err.println(" found after transferGates: " + found_d_2);
Assert.isTrue(found_d_1.getGates().equals(found_c_1.getGates() - gatesToTransfer), "should have transferred");
Assert.isTrue(found_d_2.getGates().equals(found_c_2.getGates() + gatesToTransfer), "should have transferred");
System.err.println("===============================================================");
}
static class SimulateErrorException extends RuntimeException {
}
static class SimulateErrorException extends RuntimeException {}
}

40
couchbase/transactions/src/main/java/com/example/demo/Config.java
View File

@@ -31,29 +31,29 @@ import com.couchbase.client.java.transactions.config.TransactionsConfig;
@EnableCouchbaseRepositories({ "com.example.demo" })
@EnableTransactionManagement
public class Config extends AbstractCouchbaseConfiguration {
@Override
public String getConnectionString() {
return "127.0.0.1";
}
@Override
public String getConnectionString() {
return "127.0.0.1";
}
@Override
public String getUserName() {
return "Administrator";
}
@Override
public String getUserName() {
return "Administrator";
}
@Override
public String getPassword() {
return "password";
}
@Override
public String getPassword() {
return "password";
}
@Override
public String getBucketName() {
return "travel-sample";
}
@Override
public String getBucketName() {
return "travel-sample";
}
@Override
public void configureEnvironment(ClusterEnvironment.Builder builder) {
builder.transactionsConfig(TransactionsConfig.durabilityLevel(DurabilityLevel.NONE));
}
@Override
public void configureEnvironment(ClusterEnvironment.Builder builder) {
builder.transactionsConfig(TransactionsConfig.durabilityLevel(DurabilityLevel.NONE));
}
}

6
couchbase/transactions/src/main/java/com/example/demo/DemoApplication.java
View File

@@ -24,8 +24,8 @@ import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class DemoApplication {
public static void main(String[] args) {
SpringApplication.run(DemoApplication.class, args);
}
public static void main(String[] args) {
SpringApplication.run(DemoApplication.class, args);
}
}

9
couchbase/transactions/src/test/java/com/example/demo/DemoApplicationTests.java
View File

@@ -15,12 +15,12 @@
*/
package com.example.demo;
import example.springdata.couchbase.util.EnabledOnCouchbaseAvailable;
import org.junit.jupiter.api.Test;
import org.springframework.boot.test.context.SpringBootTest;
import example.springdata.couchbase.util.EnabledOnCouchbaseAvailable;
/**
* @author Michael Reiche
* @author Christoph Strobl
@@ -29,7 +29,6 @@ import example.springdata.couchbase.util.EnabledOnCouchbaseAvailable;
@EnabledOnCouchbaseAvailable
class DemoApplicationTests {
@Test
void contextLoads() {
}
@Test
void contextLoads() {}
}