Merge pull request #39 from TheBlueMatt/main

[ldk-java] / src / main / java / org / ldk / structs / UtilMethods.java

diff --git a/src/main/java/org/ldk/structs/UtilMethods.java b/src/main/java/org/ldk/structs/UtilMethods.java
index 5d1eb7afeea0f1fc079dbbbc02aa04cf82d3f9a0..e7ea1861b68bc9923a92da15ea758402799de734 100644 (file)
--- a/src/main/java/org/ldk/structs/UtilMethods.java
+++ b/src/main/java/org/ldk/structs/UtilMethods.java
@@ -197,6 +197,24 @@ public class UtilMethods {
                return ret;
        }
 
+       /**
+        * Gets a keysend route from us (payer) to the given target node (payee). This is needed because
+        * keysend payments do not have an invoice from which to pull the payee's supported features, which
+        * makes it tricky to otherwise supply the `payee_features` parameter of `get_route`.
+        * 
+        * Note that first_hops (or a relevant inner pointer) may be NULL or all-0s to represent None
+        */
+       public static Result_RouteLightningErrorZ get_keysend_route(byte[] our_node_id, NetworkGraph network, byte[] payee, @Nullable ChannelDetails[] first_hops, RouteHint[] last_hops, long final_value_msat, int final_cltv, Logger logger) {
+               long ret = bindings.get_keysend_route(our_node_id, network == null ? 0 : network.ptr & ~1, payee, first_hops != null ? Arrays.stream(first_hops).mapToLong(first_hops_conv_16 -> first_hops_conv_16 == null ? 0 : first_hops_conv_16.ptr & ~1).toArray() : null, last_hops != null ? Arrays.stream(last_hops).mapToLong(last_hops_conv_11 -> last_hops_conv_11 == null ? 0 : last_hops_conv_11.ptr & ~1).toArray() : null, final_value_msat, final_cltv, logger == null ? 0 : logger.ptr);
+               if (ret < 1024) { return null; }
+               Result_RouteLightningErrorZ ret_hu_conv = Result_RouteLightningErrorZ.constr_from_ptr(ret);
+               ret_hu_conv.ptrs_to.add(network);
+               /* TODO 2 ChannelDetails  */;
+               /* TODO 2 RouteHint  */;
+               ret_hu_conv.ptrs_to.add(logger);
+               return ret_hu_conv;
+       }
+
        /**
         * Gets a route from us (payer) to the given target node (payee).
         *