graphcli: establish connection to GraphDB server

graphdb/graphcli/pom.xml

@@ -3,10 +3,19 @@
          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-
     <groupId>me.schaertl</groupId>
     <artifactId>graphcli</artifactId>
     <version>indev</version>
-
-
+    <properties>
+        <maven.compiler.source>1.11</maven.compiler.source>
+        <maven.compiler.target>1.11</maven.compiler.target>
+    </properties>
+    <dependencies>
+        <!-- https://mvnrepository.com/artifact/com.ontotext.graphdb/graphdb-free-runtime -->
+        <dependency>
+            <groupId>com.ontotext.graphdb</groupId>
+            <artifactId>graphdb-free-runtime</artifactId>
+            <version>9.2.0</version>
+        </dependency>
+    </dependencies>
 </project>
\ No newline at end of file

graphdb/graphcli/src/main/java/me/schaertl/graphcli/Main.java

 package me.schaertl.graphcli;
 
+import org.eclipse.rdf4j.model.Resource;
+import org.eclipse.rdf4j.model.impl.TreeModel;
+import org.eclipse.rdf4j.model.vocabulary.RDF;
+import org.eclipse.rdf4j.repository.Repository;
+import org.eclipse.rdf4j.repository.RepositoryConnection;
+import org.eclipse.rdf4j.repository.config.RepositoryConfig;
+import org.eclipse.rdf4j.repository.config.RepositoryConfigSchema;
+import org.eclipse.rdf4j.repository.manager.LocalRepositoryManager;
+import org.eclipse.rdf4j.repository.manager.RemoteRepositoryManager;
+import org.eclipse.rdf4j.repository.manager.RepositoryManager;
+import org.eclipse.rdf4j.rio.RDFFormat;
+import org.eclipse.rdf4j.rio.RDFParser;
+import org.eclipse.rdf4j.rio.Rio;
+import org.eclipse.rdf4j.rio.helpers.StatementCollector;
+
+import java.io.File;
+import java.io.IOException;
+import java.io.InputStream;
+
 public class Main {
-    public static void main(String[] args) {
-        System.out.println("Hello, World!");
+    private static void hello() throws IOException {
+        // Code taken from http://graphdb.ontotext.com/documentation/standard/using-graphdb-with-the-rdf4j-api.html
+
+        // Instantiate a local repository manager and initialize it
+        final RepositoryManager repositoryManager = new RemoteRepositoryManager("http://rdf:7200");
+        repositoryManager.initialize();
+
+        // Instantiate a repository graph model
+        // final TreeModel graph = new TreeModel();
+
+        // Read repository configuration file
+        // InputStream config = EmbeddedGraphDB.class.getResourceAsStream("/repo-defaults.ttl");
+        // RDFParser rdfParser = Rio.createParser(RDFFormat.TURTLE);
+        // rdfParser.setRDFHandler(new StatementCollector(graph));
+        // rdfParser.parse(config, RepositoryConfigSchema.NAMESPACE);
+        // config.close();
+
+        // Retrieve the repository node as a resource
+        // Resource repositoryNode = GraphUtil.getUniqueSubject(graph, RDF.TYPE, RepositoryConfigSchema.REPOSITORY);
+
+        // Create a repository configuration object and add it to the repositoryManager
+        // RepositoryConfig repositoryConfig = RepositoryConfig.create(graph, repositoryNode);
+        // repositoryManager.addRepositoryConfig(repositoryConfig);
+
+        // Get the repository from repository manager, note the repository id set in configuration .ttl file
+        final Repository repository = repositoryManager.getRepository("chem");
+
+        // Open a connection to this repository
+        final RepositoryConnection repositoryConnection = repository.getConnection();
+
+        // ... use the repository
+
+        // Shutdown connection, repository and manager
+        repositoryConnection.close();
+        repository.shutDown();
+        repositoryManager.shutDown();
+    }
+
+    public static void main(String[] args) throws IOException {
+        Main.hello();
+        System.out.println("done running the program");
     }
 }