add font handling

src/main/java/de/uni_hamburg/corpora/server/Font.java

+package de.uni_hamburg.corpora.server;
+
+import jakarta.ws.rs.GET;
+import jakarta.ws.rs.Path;
+import jakarta.ws.rs.PathParam;
+import jakarta.ws.rs.core.Response;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.io.IOException;
+
+/**
+ * @author bba1792 Dr. Herbert Lange
+ * @version 20220405
+ * Class handling font files
+ */
+@Path("/fonts/{staticFile}")
+public class Font {
+
+    private final Logger logger = LoggerFactory.getLogger(this.getClass().getName());
+    /**
+     * Method handling HTTP GET requests for font files. The returned object will be sent
+     * to the client
+     *
+     * @return Response containing the file or an error code
+     */
+    @GET
+    public Response getStatic(@PathParam("staticFile") String fileName) {
+        logger.info("Loading file " + fileName);
+        try {
+            return Response.ok(this.getClass().getModule().getResourceAsStream("fonts/" + fileName).readAllBytes()).build();
+        }
+        catch (IOException e) {
+            return Response.status(500, "Error loading resource").build();
+        }
+    }
+}