root
/
spring-boot
1
0
Fork 0
Code Issues Pull Requests 1 Packages Projects Releases Wiki Activity

Upgrade to Neo4J Java Driver 5.0.0

Browse Source 
Closes gh-32620
pull/32627/head
Brian Clozel 2 years ago
parent 7e52607bab
commit d25fc73dae
5 changed files with 41 additions and 33 deletions
Show Stats Download Patch File Download Diff File

18
spring-boot-project/spring-boot-actuator/src/main/java/org/springframework/boot/actuate/neo4j/Neo4jReactiveHealthIndicator.java
Unescape Escape View File

@ -20,8 +20,9 @@ import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.neo4j.driver.Driver;
import org.neo4j.driver.exceptions.SessionExpiredException;
import org.neo4j.driver.reactive.RxResult;
import org.neo4j.driver.reactive.RxSession;
import org.neo4j.driver.reactive.ReactiveResult;
import org.neo4j.driver.reactive.ReactiveSession;
import reactor.adapter.JdkFlowAdapter;
import reactor.core.publisher.Mono;
import reactor.util.retry.Retry;
@ -64,11 +65,14 @@ public final class Neo4jReactiveHealthIndicator extends AbstractReactiveHealthIn
Mono<Neo4jHealthDetails> runHealthCheckQuery() {
// We use WRITE here to make sure UP is returned for a server that supports
// all possible workloads
return Mono.using(() -> this.driver.rxSession(Neo4jHealthIndicator.DEFAULT_SESSION_CONFIG), (session) -> {
RxResult result = session.run(Neo4jHealthIndicator.CYPHER);
return Mono.from(result.records()).zipWhen((record) -> Mono.from(result.consume()))
.map((tuple) -> new Neo4jHealthDetails(tuple.getT1(), tuple.getT2()));
}, RxSession::close);
return Mono.using(() -> this.driver.reactiveSession(Neo4jHealthIndicator.DEFAULT_SESSION_CONFIG), (session) -> {
Mono<ReactiveResult> resultMono = JdkFlowAdapter
.flowPublisherToFlux(session.run(Neo4jHealthIndicator.CYPHER)).single();
return resultMono
.flatMapMany((result) -> JdkFlowAdapter.flowPublisherToFlux(result.records())
.zipWith(JdkFlowAdapter.flowPublisherToFlux(result.consume())))
.map((tuple) -> new Neo4jHealthDetails(tuple.getT1(), tuple.getT2())).single();
}, ReactiveSession::close);
}
}

36
spring-boot-project/spring-boot-actuator/src/test/java/org/springframework/boot/actuate/neo4j/Neo4jReactiveHealthIndicatorTests.java
Unescape Escape View File

@ -25,9 +25,11 @@ import org.neo4j.driver.SessionConfig;
import org.neo4j.driver.Values;
import org.neo4j.driver.exceptions.ServiceUnavailableException;
import org.neo4j.driver.exceptions.SessionExpiredException;
import org.neo4j.driver.reactive.RxResult;
import org.neo4j.driver.reactive.RxSession;
import org.neo4j.driver.reactive.ReactiveResult;
import org.neo4j.driver.reactive.ReactiveSession;
import org.neo4j.driver.summary.ResultSummary;
import reactor.adapter.JdkFlowAdapter;
import reactor.core.publisher.Flux;
import reactor.core.publisher.Mono;
import reactor.test.StepVerifier;
@ -46,6 +48,7 @@ import static org.mockito.Mockito.times;
*
* @author Michael J. Simons
* @author Stephane Nicoll
* @author Brian Clozel
*/
class Neo4jReactiveHealthIndicatorTests {
@ -64,17 +67,18 @@ class Neo4jReactiveHealthIndicatorTests {
@Test
void neo4jIsUpWithOneSessionExpiredException() {
ResultSummary resultSummary = ResultSummaryMock.createResultSummary("My Home", "");
RxSession session = mock(RxSession.class);
RxResult statementResult = mockStatementResult(resultSummary, "4711", "some edition");
ReactiveSession session = mock(ReactiveSession.class);
ReactiveResult statementResult = mockStatementResult(resultSummary, "4711", "some edition");
AtomicInteger count = new AtomicInteger();
given(session.run(anyString())).will((invocation) -> {
if (count.compareAndSet(0, 1)) {
throw new SessionExpiredException("Session expired");
return JdkFlowAdapter
.publisherToFlowPublisher(Flux.error(new SessionExpiredException("Session expired")));
}
return statementResult;
return JdkFlowAdapter.publisherToFlowPublisher(Flux.just(statementResult));
});
Driver driver = mock(Driver.class);
given(driver.rxSession(any(SessionConfig.class))).willReturn(session);
given(driver.reactiveSession(any(SessionConfig.class))).willReturn(session);
Neo4jReactiveHealthIndicator healthIndicator = new Neo4jReactiveHealthIndicator(driver);
healthIndicator.health().as(StepVerifier::create).consumeNextWith((health) -> {
assertThat(health.getStatus()).isEqualTo(Status.UP);
@ -87,7 +91,7 @@ class Neo4jReactiveHealthIndicatorTests {
@Test
void neo4jIsDown() {
Driver driver = mock(Driver.class);
given(driver.rxSession(any(SessionConfig.class))).willThrow(ServiceUnavailableException.class);
given(driver.reactiveSession(any(SessionConfig.class))).willThrow(ServiceUnavailableException.class);
Neo4jReactiveHealthIndicator healthIndicator = new Neo4jReactiveHealthIndicator(driver);
healthIndicator.health().as(StepVerifier::create).consumeNextWith((health) -> {
assertThat(health.getStatus()).isEqualTo(Status.DOWN);
@ -95,22 +99,22 @@ class Neo4jReactiveHealthIndicatorTests {
}).verifyComplete();
}
private RxResult mockStatementResult(ResultSummary resultSummary, String version, String edition) {
private ReactiveResult mockStatementResult(ResultSummary resultSummary, String version, String edition) {
Record record = mock(Record.class);
given(record.get("edition")).willReturn(Values.value(edition));
given(record.get("version")).willReturn(Values.value(version));
RxResult statementResult = mock(RxResult.class);
given(statementResult.records()).willReturn(Mono.just(record));
given(statementResult.consume()).willReturn(Mono.just(resultSummary));
ReactiveResult statementResult = mock(ReactiveResult.class);
given(statementResult.records()).willReturn(JdkFlowAdapter.publisherToFlowPublisher(Mono.just(record)));
given(statementResult.consume()).willReturn(JdkFlowAdapter.publisherToFlowPublisher(Mono.just(resultSummary)));
return statementResult;
}
private Driver mockDriver(ResultSummary resultSummary, String version, String edition) {
RxResult statementResult = mockStatementResult(resultSummary, version, edition);
RxSession session = mock(RxSession.class);
given(session.run(anyString())).willReturn(statementResult);
ReactiveResult statementResult = mockStatementResult(resultSummary, version, edition);
ReactiveSession session = mock(ReactiveSession.class);
given(session.run(anyString())).willReturn(JdkFlowAdapter.publisherToFlowPublisher(Mono.just(statementResult)));
Driver driver = mock(Driver.class);
given(driver.rxSession(any(SessionConfig.class))).willReturn(session);
given(driver.reactiveSession(any(SessionConfig.class))).willReturn(session);
return driver;
}

2
spring-boot-project/spring-boot-dependencies/build.gradle
Unescape Escape View File

@ -1086,7 +1086,7 @@ bom {
]
}
}
library("Neo4j Java Driver", "4.4.9") {
library("Neo4j Java Driver", "5.0.0") {
group("org.neo4j.driver") {
modules = [
"neo4j-java-driver"

2
spring-boot-project/spring-boot-docs/src/main/java/org/springframework/boot/docs/data/nosql/neo4j/connecting/MyBean.java
Unescape Escape View File

@ -34,7 +34,7 @@ public class MyBean {
// @fold:on // ...
public String someMethod(String message) {
try (Session session = this.driver.session()) {
return session.writeTransaction((transaction) -> transaction
return session.executeWrite((transaction) -> transaction
.run("CREATE (a:Greeting) SET a.message = $message RETURN a.message + ', from node ' + id(a)",
Values.parameters("message", message))
.single().get(0).asString());

16
spring-boot-project/spring-boot-docs/src/main/kotlin/org/springframework/boot/docs/data/nosql/neo4j/connecting/MyBean.kt
Unescape Escape View File

@ -16,9 +16,7 @@
package org.springframework.boot.docs.data.nosql.neo4j.connecting
import org.neo4j.driver.Driver
import org.neo4j.driver.Transaction
import org.neo4j.driver.Values
import org.neo4j.driver.*
import org.springframework.stereotype.Component
@Component
@ -26,11 +24,13 @@ class MyBean(private val driver: Driver) {
// @fold:on // ...
fun someMethod(message: String?): String {
driver.session().use { session ->
return@someMethod session.writeTransaction { transaction: Transaction ->
transaction.run(
"CREATE (a:Greeting) SET a.message = \$message RETURN a.message + ', from node ' + id(a)",
Values.parameters("message", message)
).single()[0].asString()
return@someMethod session.executeWrite { transaction: TransactionContext ->
transaction
.run(
"CREATE (a:Greeting) SET a.message = \$message RETURN a.message + ', from node ' + id(a)",
Values.parameters("message", message)
)
.single()[0].asString()
}
}
}

Write Preview
Loading…
Cancel
Save