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Upgrade to Neo4J Java Driver 5.0.0
Closes gh-32620
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parent
7e52607bab
commit
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@ -20,8 +20,9 @@ import org.apache.commons.logging.Log;
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import org.apache.commons.logging.LogFactory;
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import org.neo4j.driver.Driver;
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import org.neo4j.driver.exceptions.SessionExpiredException;
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import org.neo4j.driver.reactive.RxResult;
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import org.neo4j.driver.reactive.RxSession;
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import org.neo4j.driver.reactive.ReactiveResult;
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import org.neo4j.driver.reactive.ReactiveSession;
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import reactor.adapter.JdkFlowAdapter;
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import reactor.core.publisher.Mono;
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import reactor.util.retry.Retry;
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@ -64,11 +65,14 @@ public final class Neo4jReactiveHealthIndicator extends AbstractReactiveHealthIn
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Mono<Neo4jHealthDetails> runHealthCheckQuery() {
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// We use WRITE here to make sure UP is returned for a server that supports
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// all possible workloads
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return Mono.using(() -> this.driver.rxSession(Neo4jHealthIndicator.DEFAULT_SESSION_CONFIG), (session) -> {
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RxResult result = session.run(Neo4jHealthIndicator.CYPHER);
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return Mono.from(result.records()).zipWhen((record) -> Mono.from(result.consume()))
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.map((tuple) -> new Neo4jHealthDetails(tuple.getT1(), tuple.getT2()));
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}, RxSession::close);
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return Mono.using(() -> this.driver.reactiveSession(Neo4jHealthIndicator.DEFAULT_SESSION_CONFIG), (session) -> {
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Mono<ReactiveResult> resultMono = JdkFlowAdapter
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.flowPublisherToFlux(session.run(Neo4jHealthIndicator.CYPHER)).single();
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return resultMono
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.flatMapMany((result) -> JdkFlowAdapter.flowPublisherToFlux(result.records())
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.zipWith(JdkFlowAdapter.flowPublisherToFlux(result.consume())))
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.map((tuple) -> new Neo4jHealthDetails(tuple.getT1(), tuple.getT2())).single();
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}, ReactiveSession::close);
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}
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}
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@ -25,9 +25,11 @@ import org.neo4j.driver.SessionConfig;
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import org.neo4j.driver.Values;
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import org.neo4j.driver.exceptions.ServiceUnavailableException;
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import org.neo4j.driver.exceptions.SessionExpiredException;
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import org.neo4j.driver.reactive.RxResult;
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import org.neo4j.driver.reactive.RxSession;
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import org.neo4j.driver.reactive.ReactiveResult;
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import org.neo4j.driver.reactive.ReactiveSession;
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import org.neo4j.driver.summary.ResultSummary;
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import reactor.adapter.JdkFlowAdapter;
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import reactor.core.publisher.Flux;
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import reactor.core.publisher.Mono;
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import reactor.test.StepVerifier;
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@ -46,6 +48,7 @@ import static org.mockito.Mockito.times;
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*
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* @author Michael J. Simons
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* @author Stephane Nicoll
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* @author Brian Clozel
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*/
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class Neo4jReactiveHealthIndicatorTests {
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@ -64,17 +67,18 @@ class Neo4jReactiveHealthIndicatorTests {
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@Test
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void neo4jIsUpWithOneSessionExpiredException() {
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ResultSummary resultSummary = ResultSummaryMock.createResultSummary("My Home", "");
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RxSession session = mock(RxSession.class);
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RxResult statementResult = mockStatementResult(resultSummary, "4711", "some edition");
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ReactiveSession session = mock(ReactiveSession.class);
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ReactiveResult statementResult = mockStatementResult(resultSummary, "4711", "some edition");
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AtomicInteger count = new AtomicInteger();
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given(session.run(anyString())).will((invocation) -> {
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if (count.compareAndSet(0, 1)) {
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throw new SessionExpiredException("Session expired");
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return JdkFlowAdapter
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.publisherToFlowPublisher(Flux.error(new SessionExpiredException("Session expired")));
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}
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return statementResult;
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return JdkFlowAdapter.publisherToFlowPublisher(Flux.just(statementResult));
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});
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Driver driver = mock(Driver.class);
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given(driver.rxSession(any(SessionConfig.class))).willReturn(session);
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given(driver.reactiveSession(any(SessionConfig.class))).willReturn(session);
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Neo4jReactiveHealthIndicator healthIndicator = new Neo4jReactiveHealthIndicator(driver);
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healthIndicator.health().as(StepVerifier::create).consumeNextWith((health) -> {
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assertThat(health.getStatus()).isEqualTo(Status.UP);
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@ -87,7 +91,7 @@ class Neo4jReactiveHealthIndicatorTests {
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@Test
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void neo4jIsDown() {
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Driver driver = mock(Driver.class);
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given(driver.rxSession(any(SessionConfig.class))).willThrow(ServiceUnavailableException.class);
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given(driver.reactiveSession(any(SessionConfig.class))).willThrow(ServiceUnavailableException.class);
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Neo4jReactiveHealthIndicator healthIndicator = new Neo4jReactiveHealthIndicator(driver);
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healthIndicator.health().as(StepVerifier::create).consumeNextWith((health) -> {
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assertThat(health.getStatus()).isEqualTo(Status.DOWN);
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@ -95,22 +99,22 @@ class Neo4jReactiveHealthIndicatorTests {
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}).verifyComplete();
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}
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private RxResult mockStatementResult(ResultSummary resultSummary, String version, String edition) {
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private ReactiveResult mockStatementResult(ResultSummary resultSummary, String version, String edition) {
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Record record = mock(Record.class);
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given(record.get("edition")).willReturn(Values.value(edition));
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given(record.get("version")).willReturn(Values.value(version));
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RxResult statementResult = mock(RxResult.class);
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given(statementResult.records()).willReturn(Mono.just(record));
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given(statementResult.consume()).willReturn(Mono.just(resultSummary));
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ReactiveResult statementResult = mock(ReactiveResult.class);
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given(statementResult.records()).willReturn(JdkFlowAdapter.publisherToFlowPublisher(Mono.just(record)));
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given(statementResult.consume()).willReturn(JdkFlowAdapter.publisherToFlowPublisher(Mono.just(resultSummary)));
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return statementResult;
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}
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private Driver mockDriver(ResultSummary resultSummary, String version, String edition) {
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RxResult statementResult = mockStatementResult(resultSummary, version, edition);
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RxSession session = mock(RxSession.class);
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given(session.run(anyString())).willReturn(statementResult);
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ReactiveResult statementResult = mockStatementResult(resultSummary, version, edition);
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ReactiveSession session = mock(ReactiveSession.class);
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given(session.run(anyString())).willReturn(JdkFlowAdapter.publisherToFlowPublisher(Mono.just(statementResult)));
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Driver driver = mock(Driver.class);
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given(driver.rxSession(any(SessionConfig.class))).willReturn(session);
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given(driver.reactiveSession(any(SessionConfig.class))).willReturn(session);
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return driver;
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}
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@ -1086,7 +1086,7 @@ bom {
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]
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}
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}
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library("Neo4j Java Driver", "4.4.9") {
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library("Neo4j Java Driver", "5.0.0") {
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group("org.neo4j.driver") {
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modules = [
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"neo4j-java-driver"
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@ -34,7 +34,7 @@ public class MyBean {
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// @fold:on // ...
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public String someMethod(String message) {
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try (Session session = this.driver.session()) {
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return session.writeTransaction((transaction) -> transaction
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return session.executeWrite((transaction) -> transaction
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.run("CREATE (a:Greeting) SET a.message = $message RETURN a.message + ', from node ' + id(a)",
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Values.parameters("message", message))
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.single().get(0).asString());
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@ -16,9 +16,7 @@
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package org.springframework.boot.docs.data.nosql.neo4j.connecting
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import org.neo4j.driver.Driver
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import org.neo4j.driver.Transaction
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import org.neo4j.driver.Values
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import org.neo4j.driver.*
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import org.springframework.stereotype.Component
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@Component
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@ -26,11 +24,13 @@ class MyBean(private val driver: Driver) {
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// @fold:on // ...
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fun someMethod(message: String?): String {
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driver.session().use { session ->
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return@someMethod session.writeTransaction { transaction: Transaction ->
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transaction.run(
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"CREATE (a:Greeting) SET a.message = \$message RETURN a.message + ', from node ' + id(a)",
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Values.parameters("message", message)
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).single()[0].asString()
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return@someMethod session.executeWrite { transaction: TransactionContext ->
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transaction
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.run(
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"CREATE (a:Greeting) SET a.message = \$message RETURN a.message + ', from node ' + id(a)",
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Values.parameters("message", message)
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)
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.single()[0].asString()
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}
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}
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}
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