remove src/uloimport

- It was the seperate Importer compontent written in Java.

- It is not necessary anymore as we do it directly from REST
  in luoweb.

src/uloimport/.gitignore

-target
-.idea
\ No newline at end of file

src/uloimport/pom.xml

-<?xml version="1.0" encoding="UTF-8"?>
-<project xmlns="http://maven.apache.org/POM/4.0.0" 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>info.kwarc.uloimport</groupId>
-    <artifactId>uloimport</artifactId>
-    <version>indev</version>
-
-    <properties>
-        <!-- https://stackoverflow.com/questions/59601077/intellij-errorjava-error-release-version-5-not-supported -->
-        <maven.compiler.source>1.11</maven.compiler.source>
-        <maven.compiler.target>1.11</maven.compiler.target>
-    </properties>
-
-    <dependencies>
-        <dependency>
-            <groupId>ch.qos.logback</groupId>
-            <artifactId>logback-core</artifactId>
-            <version>1.2.3</version>
-        </dependency>
-        <dependency>
-            <groupId>com.google.guava</groupId>
-            <artifactId>guava</artifactId>
-            <version>29.0-jre</version>
-        </dependency>
-        <dependency>
-            <groupId>com.ontotext.graphdb</groupId>
-            <artifactId>graphdb-free-runtime</artifactId>
-            <version>9.2.0</version>
-        </dependency>
-        <dependency>
-            <groupId>org.slf4j</groupId>
-            <artifactId>slf4j-api</artifactId>
-            <version>1.7.30</version>
-        </dependency>
-    </dependencies>
-</project>
\ No newline at end of file

src/uloimport/src/main/java/info/kwarc/uloimport/Main.java

-package info.kwarc.uloimport;
-
-public class Main {
-    public static void main(String[] args) {
-        System.out.println("Hello, World!");
-    }
-}

src/uloimport/src/main/java/info/kwarc/uloimport/importer/GraphDbImporter.java

-package info.kwarc.uloimport.importer;
-
-import org.eclipse.rdf4j.repository.Repository;
-import org.eclipse.rdf4j.repository.RepositoryConnection;
-import org.eclipse.rdf4j.repository.manager.RemoteRepositoryManager;
-import org.eclipse.rdf4j.repository.manager.RepositoryManager;
-
-import java.io.InputStream;
-
-import static com.google.common.base.Preconditions.checkNotNull;
-
-/**
- * {@link Importer} that uploads imported data to a GraphDB instance.
- */
-public class GraphDbImporter implements Importer {
-    private final String serverUrl;
-    private final String repository;
-
-    /**
-     * Construct a new GraphDbImporter that imports its data to a remote
-     * GraphDB instance.
-     *
-     * @param serverUrl The URL under which GraphDB is running.
-     * @param repository The name of the repository to dump to.
-     */
-    public GraphDbImporter(String serverUrl, String repository) {
-        this.serverUrl = checkNotNull(serverUrl);
-        this.repository = checkNotNull(repository);
-    }
-
-    @Override
-    public void importRdfFile(InputStream is) throws ImportException {
-        final RepositoryManager manager;
-        final Repository repository;
-        final RepositoryConnection connection;
-
-        try {
-            manager = new RemoteRepositoryManager(this.serverUrl);
-            manager.init();
-
-            repository = manager.getRepository(this.repository);
-            if (repository ==  null) {
-                throw new ImportException("could not connect to repository=%s", this.repository);
-            }
-
-            connection = repository.getConnection();
-        } catch (Exception e) {
-            throw new ImportException("could not initialize database connection", e);
-        }
-
-        // TODO: Handle errors during initialization. This is quite annoying
-        // to do with this API.
-    }
-}

src/uloimport/src/main/java/info/kwarc/uloimport/importer/ImportException.java

-package info.kwarc.uloimport.importer;
-
-/**
- * An Exception caused by an import of ULO/RDF data.
- */
-public class ImportException extends RuntimeException {
-    /**
-     * Construct a new {@link ImportException} with just a message.
-     *
-     * @param message The message associated with this exception.
-     */
-    public ImportException(String message) {
-        super(message);
-    }
-
-    /**
-     * Construct a new {@link ImportException} with a formatted message.
-     *
-     * @param format Format string of the message.
-     * @param args Arguments for the format string.
-     */
-    public ImportException(String format, Object... args) {
-        super(String.format(format, args));
-    }
-
-    /**
-     * Construct a new {@link ImportException} with a message and a cause
-     * that caused this exception.
-     *
-     * @param message The message associated with this exception.
-     * @param cause The underlying cause of the import error.
-     */
-    public ImportException(String message, Throwable cause) {
-        super(message, cause);
-    }
-}

src/uloimport/src/main/java/info/kwarc/uloimport/importer/Importer.java

-package info.kwarc.uloimport.importer;
-
-import java.io.InputStream;
-
-public interface Importer {
-    /**
-     * Import the (single) ULO/RDF file at the given input stream to the
-     * storage underlying this {@link Importer}.
-     *
-     * @param is The stream from which to read a single ULO/RDF file.
-     * @throws ImportException When the import failed.
-     */
-    void importRdfFile(InputStream is) throws ImportException;
-}