Changed API and frontend to handle stored triggers and jobs

quartz-manager-parent/quartz-manager-common/src/main/java/it/fabioformosa/quartzmanager/common/utils/Try.java

@@ -0,0 +1,54 @@
+package it.fabioformosa.quartzmanager.common.utils;
+
+import java.util.function.Function;
+
+public class Try<R> {
+
+  private final Throwable failure;
+  private final R success;
+
+  public Try(Throwable failure, R success) {
+    this.failure = failure;
+    this.success = success;
+  }
+
+  public R getSuccess() {
+    return success;
+  }
+
+  public static <R> Try success(R r){
+    return new Try<>(null, r);
+  }
+
+  public static <ExceptionType> Try failure(Throwable e){
+    return new Try<>(e, null);
+  }
+
+  public static <T, R> Function<T, Try<R>> with(CheckedFunction<T, R> checkedFunction){
+    return t -> {
+      try {
+        return Try.success(checkedFunction.apply(t));
+      } catch (java.lang.Exception e) {
+        return Try.failure(e);
+      }
+    };
+  }
+
+  public static <T, R> Function<T, R> sneakyThrow(CheckedFunction<T, R> checkedFunction){
+   return t -> Try.with(checkedFunction).apply(t).getSuccess();
+  }
+
+  public boolean isSuccess(){
+    return this.failure == null;
+  }
+
+  public boolean isFailure(){
+    return this.failure != null;
+  }
+
+  @FunctionalInterface
+  public static interface CheckedFunction<T, R> {
+    R apply(T t) throws java.lang.Exception;
+  }
+}
+