generate ldv config file with inverse links disabled on binsearch

Author: SimonBin

rdf-processing-toolkit-cli/src/main/java/org/aksw/sparql_integrate/cli/main/ServletLdvConfigJs.java

@@ -0,0 +1,76 @@
+package org.aksw.sparql_integrate.cli.main;
+
+import jakarta.servlet.ServletRegistration;
+import jakarta.servlet.http.HttpServlet;
+import jakarta.servlet.http.HttpServletRequest;
+import jakarta.servlet.http.HttpServletResponse;
+import jakarta.ws.rs.core.MediaType;
+import org.aksw.jenax.web.server.boot.ServletBuilder;
+import org.springframework.web.WebApplicationInitializer;
+import org.springframework.web.context.support.GenericWebApplicationContext;
+
+import java.io.IOException;
+import java.io.PrintWriter;
+
+public class ServletLdvConfigJs extends HttpServlet implements ServletBuilder {
+
+    private String dbEngine;
+
+    public static ServletLdvConfigJs newBuilder() {
+        return new ServletLdvConfigJs();
+    }
+
+    @Override
+    public WebApplicationInitializer build(GenericWebApplicationContext rootContext) {
+        return servletContext -> {
+            ServletRegistration.Dynamic servlet = servletContext.addServlet("dbEngineSetting", this);
+            servlet.addMapping("/dbEngineSetting");
+            servlet.addMapping("/dbEngineSetting/");
+            servlet.addMapping("/_/js2/config.js");
+            servlet.setLoadOnStartup(1);
+        };
+    }
+
+    @Override
+    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws IOException {
+        PrintWriter writer = resp.getWriter();
+        if ("/_/js2/config.js".equals(req.getServletPath())) {
+            resp.setContentType("text/javascript;charset=utf-8");
+            writer.println("""
+(() => {
+  const ldvConfig = {
+    endpointUrl: '/sparql',
+    endpointOptions: {
+      mode: 'cors',
+      credentials: 'same-origin',
+      method: 'POST',
+    },
+    datasetBase: window.location.origin,
+    exploreUrl: '@EXPLORE_URL@',
+    graphLookup: '@GRAPH_LOOKUP@',
+    reverseEnabled: '@SHOW_INVERSE@',
+    labelLang: 'en',
+    labelLangChoice: ['en', 'de', 'nl', 'fr'],
+    infer: false,
+    fileOnly: 'yes',
+  }
+
+  window.ldvConfig = ldvConfig
+})()
+""".replace("@SHOW_INVERSE@", "binsearch".equals(this.getDbEngine()) ? "no" : "yes"));
+        } else {
+            resp.setContentType(MediaType.TEXT_PLAIN);
+            writer.println(this.getDbEngine());
+        }
+        writer.close();
+    }
+
+    public ServletBuilder setDbEngine(String dbEngine) {
+        this.dbEngine = dbEngine;
+        return this;
+    }
+
+    public String getDbEngine() {
+        return dbEngine;
+    }
+}

rdf-processing-toolkit-cli/src/main/java/org/aksw/sparql_integrate/cli/main/SparqlIntegrateCmdImpls.java

@@ -838,6 +838,8 @@ public void afterExec() {
                         .addServletBuilder(ServletBuilderGraphQlV2.newBuilder()
                                 .setGraphQlExecFactory(graphQlExecFactoryV2)
                             )
+                        .addServletBuilder(ServletLdvConfigJs.newBuilder()
+                                .setDbEngine(cmd.engine))
                         .setPort(port).create();
 
                 server.start();