Add 5.18 compatibility layer

compatibility/5.18/neo4j-kernel-adapter/build.gradle

@@ -0,0 +1,65 @@
+apply plugin: 'java-library'
+apply plugin: 'me.champeau.mrjar'
+
+description = 'Neo4j Graph Data Science :: Neo4j Kernel Adapter 5.18'
+
+group = 'org.neo4j.gds'
+
+// for all 5.x versions
+if (ver.'neo4j'.startsWith('5.')) {
+    sourceSets {
+        main {
+            java {
+                srcDirs = ['src/main/java17']
+            }
+        }
+    }
+
+    dependencies {
+        annotationProcessor project(':annotations')
+        annotationProcessor group: 'org.immutables', name: 'value', version: ver.'immutables'
+        annotationProcessor group: 'org.neo4j', name: 'annotations', version: neos.'5.18'
+
+        compileOnly project(':annotations')
+        compileOnly group: 'org.immutables', name: 'value-annotations', version: ver.'immutables'
+        compileOnly group: 'org.neo4j', name: 'annotations', version: neos.'5.18'
+        compileOnly group: 'org.neo4j', name: 'neo4j', version: neos.'5.18'
+        compileOnly group: 'org.neo4j', name: 'neo4j-record-storage-engine', version: neos.'5.18'
+        compileOnly group: 'org.neo4j.community', name: 'it-test-support', version: neos.'5.18'
+
+        implementation project(':neo4j-kernel-adapter-api')
+        implementation project(':neo4j-kernel-adapter-5-common')
+    }
+} else {
+    multiRelease {
+        targetVersions 11, 17
+    }
+
+    if (!project.hasProperty('no-forbidden-apis')) {
+        forbiddenApisJava17 {
+            exclude('**')
+        }
+    }
+
+    dependencies {
+        annotationProcessor group: 'org.neo4j', name: 'annotations', version: ver.'neo4j'
+
+        compileOnly project(':annotations')
+        compileOnly group: 'org.neo4j', name: 'annotations', version: ver.'neo4j'
+
+        implementation project(':neo4j-kernel-adapter-api')
+
+        java17AnnotationProcessor project(':annotations')
+        java17AnnotationProcessor group: 'org.immutables', name: 'value', version: ver.'immutables'
+        java17AnnotationProcessor group: 'org.neo4j', name: 'annotations', version: neos.'5.18'
+
+        java17CompileOnly project(':annotations')
+        java17CompileOnly group: 'org.immutables', name: 'value-annotations', version: ver.'immutables'
+        java17CompileOnly group: 'org.neo4j', name: 'neo4j', version: neos.'5.18'
+        java17CompileOnly group: 'org.neo4j', name: 'neo4j-record-storage-engine', version: neos.'5.18'
+        java17CompileOnly group: 'org.neo4j.community', name: 'it-test-support', version: neos.'5.18'
+
+        java17Implementation project(':neo4j-kernel-adapter-api')
+        java17Implementation project(':neo4j-kernel-adapter-5-common')
+    }
+}

compatibility/5.18/neo4j-kernel-adapter/src/main/java/org/neo4j/gds/compat/_518/Neo4jProxyFactoryImpl.java

@@ -0,0 +1,44 @@
+/*
+ * Copyright (c) "Neo4j"
+ * Neo4j Sweden AB [http://neo4j.com]
+ *
+ * This file is part of Neo4j.
+ *
+ * Neo4j is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.neo4j.gds.compat._518;
+
+import org.neo4j.annotations.service.ServiceProvider;
+import org.neo4j.gds.compat.Neo4jProxyApi;
+import org.neo4j.gds.compat.Neo4jProxyFactory;
+import org.neo4j.gds.compat.Neo4jVersion;
+
+@ServiceProvider
+public final class Neo4jProxyFactoryImpl implements Neo4jProxyFactory {
+
+    @Override
+    public boolean canLoad(Neo4jVersion version) {
+        return false;
+    }
+
+    @Override
+    public Neo4jProxyApi load() {
+        throw new UnsupportedOperationException("RC compatibility requires JDK17 or later");
+    }
+
+    @Override
+    public String description() {
+        return "Neo4j RC (placeholder)";
+    }
+}

compatibility/5.18/neo4j-kernel-adapter/src/main/java17/org/neo4j/gds/compat/_518/BoltTransactionRunnerImpl.java

@@ -0,0 +1,103 @@
+/*
+ * Copyright (c) "Neo4j"
+ * Neo4j Sweden AB [http://neo4j.com]
+ *
+ * This file is part of Neo4j.
+ *
+ * Neo4j is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.neo4j.gds.compat._518;
+
+import org.neo4j.bolt.dbapi.BoltGraphDatabaseServiceSPI;
+import org.neo4j.bolt.dbapi.BoltTransaction;
+import org.neo4j.bolt.protocol.common.message.AccessMode;
+import org.neo4j.bolt.protocol.common.message.request.connection.RoutingContext;
+import org.neo4j.bolt.tx.statement.StatementQuerySubscriber;
+import org.neo4j.exceptions.KernelException;
+import org.neo4j.gds.compat.BoltQuerySubscriber;
+import org.neo4j.gds.compat.BoltTransactionRunner;
+import org.neo4j.graphdb.QueryStatistics;
+import org.neo4j.internal.kernel.api.connectioninfo.ClientConnectionInfo;
+import org.neo4j.internal.kernel.api.security.LoginContext;
+import org.neo4j.kernel.api.KernelTransaction;
+import org.neo4j.kernel.impl.query.QueryExecutionConfiguration;
+import org.neo4j.kernel.impl.query.QueryExecutionKernelException;
+import org.neo4j.values.virtual.MapValue;
+
+import java.time.Duration;
+import java.util.List;
+import java.util.Map;
+
+public class BoltTransactionRunnerImpl extends BoltTransactionRunner<StatementQuerySubscriber, String> {
+
+    @Override
+    protected BoltQuerySubscriber<StatementQuerySubscriber> boltQuerySubscriber() {
+        var subscriber = new StatementQuerySubscriber();
+        return new BoltQuerySubscriber<>() {
+            @Override
+            public void assertSucceeded() throws KernelException {
+                subscriber.assertSuccess();
+            }
+
+            @Override
+            public QueryStatistics queryStatistics() {
+                return subscriber.getStatistics();
+            }
+
+            @Override
+            public StatementQuerySubscriber innerSubscriber() {
+                return subscriber;
+            }
+        };
+    }
+
+    @Override
+    protected void executeQuery(
+        BoltTransaction boltTransaction,
+        String query,
+        MapValue parameters,
+        StatementQuerySubscriber querySubscriber
+    ) throws QueryExecutionKernelException {
+        try {
+            boltTransaction.executeQuery(query, parameters, true, querySubscriber)
+                .queryExecution()   // This fella here is quite lazy
+                .consumeAll();      // We need to do this in order to trigger the query execution.
+        } catch (Exception e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+    @Override
+    protected BoltTransaction beginBoltWriteTransaction(
+        BoltGraphDatabaseServiceSPI fabricDb,
+        LoginContext loginContext,
+        KernelTransaction.Type kernelTransactionType,
+        ClientConnectionInfo clientConnectionInfo,
+        List<String> bookmarks,
+        Duration txTimeout,
+        Map<String, Object> txMetadata
+    ) {
+        return fabricDb.beginTransaction(
+            kernelTransactionType,
+            loginContext,
+            clientConnectionInfo,
+            bookmarks,
+            txTimeout,
+            AccessMode.WRITE,
+            txMetadata,
+            new RoutingContext(true, Map.of()),
+            QueryExecutionConfiguration.DEFAULT_CONFIG
+        );
+    }
+}

compatibility/5.18/neo4j-kernel-adapter/src/main/java17/org/neo4j/gds/compat/_518/Neo4jProxyFactoryImpl.java

@@ -0,0 +1,44 @@
+/*
+ * Copyright (c) "Neo4j"
+ * Neo4j Sweden AB [http://neo4j.com]
+ *
+ * This file is part of Neo4j.
+ *
+ * Neo4j is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.neo4j.gds.compat._518;
+
+import org.neo4j.annotations.service.ServiceProvider;
+import org.neo4j.gds.compat.Neo4jProxyApi;
+import org.neo4j.gds.compat.Neo4jProxyFactory;
+import org.neo4j.gds.compat.Neo4jVersion;
+
+@ServiceProvider
+public final class Neo4jProxyFactoryImpl implements Neo4jProxyFactory {
+
+    @Override
+    public boolean canLoad(Neo4jVersion version) {
+        return version == Neo4jVersion.V_RC;
+    }
+
+    @Override
+    public Neo4jProxyApi load() {
+        return new Neo4jProxyImpl();
+    }
+
+    @Override
+    public String description() {
+        return "Neo4j RC";
+    }
+}