_ 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 java.lang.ref.Reference;
   8 import javax.annotation.Nullable;
   9
  10 /**
  11  * Handler for BOLT1-compliant messages.
  12  */
  13 @SuppressWarnings("unchecked") // We correctly assign various generic arrays
  14 public class CustomMessageHandler extends CommonBase {
  15         final bindings.LDKCustomMessageHandler bindings_instance;
  16         CustomMessageHandler(Object _dummy, long ptr) { super(ptr); bindings_instance = null; }
  17         private CustomMessageHandler(bindings.LDKCustomMessageHandler arg, bindings.LDKCustomMessageReader CustomMessageReader) {
  18                 super(bindings.LDKCustomMessageHandler_new(arg, CustomMessageReader));
  19                 this.ptrs_to.add(arg);
  20                 this.ptrs_to.add(CustomMessageReader);
  21                 this.bindings_instance = arg;
  22         }
  23         @Override @SuppressWarnings("deprecation")
  24         protected void finalize() throws Throwable {
  25                 if (ptr != 0) { bindings.CustomMessageHandler_free(ptr); } super.finalize();
  26         }
  27
  28         public static interface CustomMessageHandlerInterface {
  29                 /**
  30                  * Called with the message type that was received and the buffer to be read.
  31                  * Can return a `MessageHandlingError` if the message could not be handled.
  32                  */
  33                 Result_NoneLightningErrorZ handle_custom_message(Type msg, byte[] sender_node_id);
  34                 /**
  35                  * Gets the list of pending messages which were generated by the custom message
  36                  * handler, clearing the list in the process. The first tuple element must
  37                  * correspond to the intended recipients node ids. If no connection to one of the
  38                  * specified node does not exist, the message is simply not sent to it.
  39                  */
  40                 TwoTuple_PublicKeyTypeZ[] get_and_clear_pending_msg();
  41         }
  42         private static class LDKCustomMessageHandlerHolder { CustomMessageHandler held; }
  43         public static CustomMessageHandler new_impl(CustomMessageHandlerInterface arg, CustomMessageReader.CustomMessageReaderInterface CustomMessageReader_impl) {
  44                 final LDKCustomMessageHandlerHolder impl_holder = new LDKCustomMessageHandlerHolder();
  45                 impl_holder.held = new CustomMessageHandler(new bindings.LDKCustomMessageHandler() {
  46                         @Override public long handle_custom_message(long msg, byte[] sender_node_id) {
  47                                 Type ret_hu_conv = new Type(null, msg);
  48                                 ret_hu_conv.ptrs_to.add(this);
  49                                 Result_NoneLightningErrorZ ret = arg.handle_custom_message(ret_hu_conv, sender_node_id);
  50                                 long result = ret == null ? 0 : ret.clone_ptr();
  51                                 return result;
  52                         }
  53                         @Override public long[] get_and_clear_pending_msg() {
  54                                 TwoTuple_PublicKeyTypeZ[] ret = arg.get_and_clear_pending_msg();
  55                                 long[] result = ret != null ? Arrays.stream(ret).mapToLong(ret_conv_25 -> ret_conv_25 == null ? 0 : ret_conv_25.clone_ptr()).toArray() : null;
  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, InternalUtils.check_arr_len(sender_node_id, 33));
  77                 Reference.reachabilityFence(this);
  78                 Reference.reachabilityFence(msg);
  79                 Reference.reachabilityFence(sender_node_id);
  80                 if (ret >= 0 && ret <= 4096) { return null; }
  81                 Result_NoneLightningErrorZ ret_hu_conv = Result_NoneLightningErrorZ.constr_from_ptr(ret);
  82                 this.ptrs_to.add(msg);
  83                 return ret_hu_conv;
  84         }
  85
  86         /**
  87          * Gets the list of pending messages which were generated by the custom message
  88          * handler, clearing the list in the process. The first tuple element must
  89          * correspond to the intended recipients node ids. If no connection to one of the
  90          * specified node does not exist, the message is simply not sent to it.
  91          */
  92         public TwoTuple_PublicKeyTypeZ[] get_and_clear_pending_msg() {
  93                 long[] ret = bindings.CustomMessageHandler_get_and_clear_pending_msg(this.ptr);
  94                 Reference.reachabilityFence(this);
  95                 int ret_conv_25_len = ret.length;
  96                 TwoTuple_PublicKeyTypeZ[] ret_conv_25_arr = new TwoTuple_PublicKeyTypeZ[ret_conv_25_len];
  97                 for (int z = 0; z < ret_conv_25_len; z++) {
  98                         long ret_conv_25 = ret[z];
  99                         TwoTuple_PublicKeyTypeZ ret_conv_25_hu_conv = new TwoTuple_PublicKeyTypeZ(null, ret_conv_25);
 100                         ret_conv_25_hu_conv.ptrs_to.add(this);
 101                         ret_conv_25_arr[z] = ret_conv_25_hu_conv;
 102                 }
 103                 return ret_conv_25_arr;
 104         }
 105
 106 }