_ Git - ldk-java/blob - src/main/java/org/ldk/structs/CustomMessageHandler.java

   1 package org.ldk.structs;
   2
   3 import org.ldk.impl.bindings;
   4 import org.ldk.enums.*;
   5 import org.ldk.util.*;
   6 import java.util.Arrays;
   7 import javax.annotation.Nullable;
   8
   9 /**
  10  * Handler for BOLT1-compliant messages.
  11  */
  12 @SuppressWarnings("unchecked") // We correctly assign various generic arrays
  13 public class CustomMessageHandler extends CommonBase {
  14         final bindings.LDKCustomMessageHandler bindings_instance;
  15         CustomMessageHandler(Object _dummy, long ptr) { super(ptr); bindings_instance = null; }
  16         private CustomMessageHandler(bindings.LDKCustomMessageHandler arg, bindings.LDKCustomMessageReader CustomMessageReader) {
  17                 super(bindings.LDKCustomMessageHandler_new(arg, CustomMessageReader));
  18                 this.ptrs_to.add(arg);
  19                 this.ptrs_to.add(CustomMessageReader);
  20                 this.bindings_instance = arg;
  21         }
  22         @Override @SuppressWarnings("deprecation")
  23         protected void finalize() throws Throwable {
  24                 if (ptr != 0) { bindings.CustomMessageHandler_free(ptr); } super.finalize();
  25         }
  26
  27         public static interface CustomMessageHandlerInterface {
  28                 /**
  29                  * Called with the message type that was received and the buffer to be read.
  30                  * Can return a `MessageHandlingError` if the message could not be handled.
  31                  */
  32                 Result_NoneLightningErrorZ handle_custom_message(Type msg, byte[] sender_node_id);
  33                 /**
  34                  * Gets the list of pending messages which were generated by the custom message
  35                  * handler, clearing the list in the process. The first tuple element must
  36                  * correspond to the intended recipients node ids. If no connection to one of the
  37                  * specified node does not exist, the message is simply not sent to it.
  38                  */
  39                 TwoTuple_PublicKeyTypeZ[] get_and_clear_pending_msg();
  40         }
  41         private static class LDKCustomMessageHandlerHolder { CustomMessageHandler held; }
  42         public static CustomMessageHandler new_impl(CustomMessageHandlerInterface arg, CustomMessageReader.CustomMessageReaderInterface CustomMessageReader_impl) {
  43                 final LDKCustomMessageHandlerHolder impl_holder = new LDKCustomMessageHandlerHolder();
  44                 impl_holder.held = new CustomMessageHandler(new bindings.LDKCustomMessageHandler() {
  45                         @Override public long handle_custom_message(long msg, byte[] sender_node_id) {
  46                                 Type ret_hu_conv = new Type(null, msg);
  47                                 ret_hu_conv.ptrs_to.add(this);
  48                                 Result_NoneLightningErrorZ ret = arg.handle_custom_message(ret_hu_conv, sender_node_id);
  49                                 long result = ret != null ? ret.ptr : 0;
  50                                 return result;
  51                         }
  52                         @Override public long[] get_and_clear_pending_msg() {
  53                                 TwoTuple_PublicKeyTypeZ[] ret = arg.get_and_clear_pending_msg();
  54                                 long[] result = ret != null ? Arrays.stream(ret).mapToLong(ret_conv_25 -> ret_conv_25 != null ? ret_conv_25.ptr : 0).toArray() : null;
  55                                 return result;
  56                         }
  57                 }, CustomMessageReader.new_impl(CustomMessageReader_impl).bindings_instance);
  58                 return impl_holder.held;
  59         }
  60
  61         /**
  62          * Gets the underlying CustomMessageReader.
  63          */
  64         public CustomMessageReader get_custom_message_reader() {
  65                 CustomMessageReader res = new CustomMessageReader(null, bindings.LDKCustomMessageHandler_get_CustomMessageReader(this.ptr));
  66                 this.ptrs_to.add(res);
  67                 return res;
  68         }
  69
  70         /**
  71          * Called with the message type that was received and the buffer to be read.
  72          * Can return a `MessageHandlingError` if the message could not be handled.
  73          */
  74         public Result_NoneLightningErrorZ handle_custom_message(Type msg, byte[] sender_node_id) {
  75                 long ret = bindings.CustomMessageHandler_handle_custom_message(this.ptr, msg == null ? 0 : msg.ptr, sender_node_id);
  76                 if (ret >= 0 && ret <= 4096) { return null; }
  77                 Result_NoneLightningErrorZ ret_hu_conv = Result_NoneLightningErrorZ.constr_from_ptr(ret);
  78                 this.ptrs_to.add(msg);
  79                 return ret_hu_conv;
  80         }
  81
  82         /**
  83          * Gets the list of pending messages which were generated by the custom message
  84          * handler, clearing the list in the process. The first tuple element must
  85          * correspond to the intended recipients node ids. If no connection to one of the
  86          * specified node does not exist, the message is simply not sent to it.
  87          */
  88         public TwoTuple_PublicKeyTypeZ[] get_and_clear_pending_msg() {
  89                 long[] ret = bindings.CustomMessageHandler_get_and_clear_pending_msg(this.ptr);
  90                 TwoTuple_PublicKeyTypeZ[] ret_conv_25_arr = new TwoTuple_PublicKeyTypeZ[ret.length];
  91                 for (int z = 0; z < ret.length; z++) {
  92                         long ret_conv_25 = ret[z];
  93                         TwoTuple_PublicKeyTypeZ ret_conv_25_hu_conv = new TwoTuple_PublicKeyTypeZ(null, ret_conv_25);
  94                         ret_conv_25_hu_conv.ptrs_to.add(this);
  95                         ret_conv_25_arr[z] = ret_conv_25_hu_conv;
  96                 }
  97                 return ret_conv_25_arr;
  98         }
  99
 100 }