Use Annotation for config

dmnverifierapi/src/main/java/de/unikoblenz/fgbks/core/dmn/verification/VerificationService.java

@@ -20,18 +20,19 @@ import java.util.concurrent.Future;
 import javax.inject.Inject;
 import javax.inject.Singleton;
 import org.apache.commons.lang3.Validate;
-import org.eclipse.microprofile.config.Config;
-import org.eclipse.microprofile.config.ConfigProvider;
+import org.eclipse.microprofile.config.inject.ConfigProperty;
 import org.reflections.Reflections;
 
 @Singleton
 public class VerificationService {
 
-  private static final String CONF_VERIFIER_THREADS = "verifier.threads";
-  private static final String CONF_PACKAGE_PATH = "verifier.package";
-  private static final Integer DEFAULT_MAX_THREADS = 1;
-  private static final String DEFAULT_PACKAGE =
-      "de.unikoblenz.fgbks.core.dmn.verification.verifier";
+  @ConfigProperty(name = "verifier.threads", defaultValue = "2")
+  Integer maxThreads;
+
+  @ConfigProperty(
+      name = "verifier.package",
+      defaultValue = "de.unikoblenz.fgbks.core.dmn.verification.verifier")
+  String packagePath;
 
   private ExecutorService executor;
   private Set<Class<?>> verifierClasses;
@@ -39,22 +40,20 @@ public class VerificationService {
   @Inject private DmnService dmnService;
 
   protected VerificationService() {
-    initVerifier();
+    super();
   }
 
   private void initVerifier() {
-    Config config = ConfigProvider.getConfig();
-    int maxThreads =
-        config.getOptionalValue(CONF_VERIFIER_THREADS, Integer.class).orElse(DEFAULT_MAX_THREADS);
     executor = Executors.newFixedThreadPool(maxThreads);
     System.out.println("Creating thread pool with " + maxThreads + " threads!");
-    String packagePath =
-        config.getOptionalValue(CONF_PACKAGE_PATH, String.class).orElse(DEFAULT_PACKAGE);
     Reflections reflections = new Reflections(packagePath);
     verifierClasses = reflections.getTypesAnnotatedWith(DmnVerifier.class);
   }
 
   public VerifierResultSet generate(String dmnXml) {
+    if (executor == null) {
+      initVerifier();
+    }
     Validate.notNull(dmnXml);
     Map<Class<? extends AbstractDmnVerifierConfig>, AbstractDmnVerifierConfig> configs =
         getConfigs(dmnXml);