_ 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<byte[], Type>[] 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<byte[], Type>[] ret = arg.get_and_clear_pending_msg();
  54                                 long[] result = ret != null ? Arrays.stream(ret).mapToLong(ret_conv_24 -> bindings.C2Tuple_PublicKeyTypeZ_new(ret_conv_24.a, ret_conv_24.b == null ? 0 : ret_conv_24.b.ptr)).toArray() : null;
  55                                 for (TwoTuple<byte[], Type> ret_conv_24: ret) { impl_holder.held.ptrs_to.add(ret_conv_24.b); };
  56                                 return result;
  57                         }
  58                 }, CustomMessageReader.new_impl(CustomMessageReader_impl).bindings_instance);
  59                 return impl_holder.held;
  60         }
  61
  62         /**
  63          * Gets the underlying CustomMessageReader.
  64          */
  65         public CustomMessageReader get_custom_message_reader() {
  66                 CustomMessageReader res = new CustomMessageReader(null, bindings.LDKCustomMessageHandler_get_CustomMessageReader(this.ptr));
  67                 this.ptrs_to.add(res);
  68                 return res;
  69         }
  70
  71         /**
  72          * Called with the message type that was received and the buffer to be read.
  73          * Can return a `MessageHandlingError` if the message could not be handled.
  74          */
  75         public Result_NoneLightningErrorZ handle_custom_message(Type msg, byte[] sender_node_id) {
  76                 long ret = bindings.CustomMessageHandler_handle_custom_message(this.ptr, msg == null ? 0 : msg.ptr, sender_node_id);
  77                 if (ret < 1024) { return null; }
  78                 Result_NoneLightningErrorZ ret_hu_conv = Result_NoneLightningErrorZ.constr_from_ptr(ret);
  79                 this.ptrs_to.add(msg);
  80                 return ret_hu_conv;
  81         }
  82
  83         /**
  84          * Gets the list of pending messages which were generated by the custom message
  85          * handler, clearing the list in the process. The first tuple element must
  86          * correspond to the intended recipients node ids. If no connection to one of the
  87          * specified node does not exist, the message is simply not sent to it.
  88          */
  89         public TwoTuple<byte[], Type>[] get_and_clear_pending_msg() {
  90                 long[] ret = bindings.CustomMessageHandler_get_and_clear_pending_msg(this.ptr);
  91                 TwoTuple<byte[], Type>[] ret_conv_24_arr = new TwoTuple[ret.length];
  92                 for (int y = 0; y < ret.length; y++) {
  93                         long ret_conv_24 = ret[y];
  94                         byte[] ret_conv_24_a = bindings.LDKC2Tuple_PublicKeyTypeZ_get_a(ret_conv_24);
  95                         long ret_conv_24_b = bindings.LDKC2Tuple_PublicKeyTypeZ_get_b(ret_conv_24);
  96                         Type ret_hu_conv = new Type(null, ret_conv_24_b);
  97                         ret_hu_conv.ptrs_to.add(this);;
  98                         TwoTuple<byte[], Type> ret_conv_24_conv = new TwoTuple<byte[], Type>(ret_conv_24_a, ret_hu_conv, () -> {
  99                                 bindings.C2Tuple_PublicKeyTypeZ_free(ret_conv_24);
 100                         });
 101                         ret_hu_conv.ptrs_to.add(ret_conv_24_conv);
 102                         ret_conv_24_arr[y] = ret_conv_24_conv;
 103                 }
 104                 return ret_conv_24_arr;
 105         }
 106
 107 }