git.bitcoin.ninja Git - ldk-java/blob - src/main/java/org/ldk/structs/Access.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  * The `Access` trait defines behavior for accessing chain data and state, such as blocks and
  12  * UTXOs.
  13  */
  14 @SuppressWarnings("unchecked") // We correctly assign various generic arrays
  15 public class Access extends CommonBase {
  16         final bindings.LDKAccess bindings_instance;
  17         Access(Object _dummy, long ptr) { super(ptr); bindings_instance = null; }
  18         private Access(bindings.LDKAccess arg) {
  19                 super(bindings.LDKAccess_new(arg));
  20                 this.ptrs_to.add(arg);
  21                 this.bindings_instance = arg;
  22         }
  23         @Override @SuppressWarnings("deprecation")
  24         protected void finalize() throws Throwable {
  25                 if (ptr != 0) { bindings.Access_free(ptr); } super.finalize();
  26         }
  27
  28         public static interface AccessInterface {
  29                 /**
  30                  * Returns the transaction output of a funding transaction encoded by [`short_channel_id`].
  31                  * Returns an error if `genesis_hash` is for a different chain or if such a transaction output
  32                  * is unknown.
  33                  *
  34                  * [`short_channel_id`]: https://github.com/lightning/bolts/blob/master/07-routing-gossip.md#definition-of-short_channel_id
  35                  */
  36                 Result_TxOutAccessErrorZ get_utxo(byte[] genesis_hash, long short_channel_id);
  37         }
  38         private static class LDKAccessHolder { Access held; }
  39         public static Access new_impl(AccessInterface arg) {
  40                 final LDKAccessHolder impl_holder = new LDKAccessHolder();
  41                 impl_holder.held = new Access(new bindings.LDKAccess() {
  42                         @Override public long get_utxo(byte[] genesis_hash, long short_channel_id) {
  43                                 Result_TxOutAccessErrorZ ret = arg.get_utxo(genesis_hash, short_channel_id);
  44                                 Reference.reachabilityFence(arg);
  45                                 long result = ret == null ? 0 : ret.clone_ptr();
  46                                 return result;
  47                         }
  48                 });
  49                 return impl_holder.held;
  50         }
  51         /**
  52          * Returns the transaction output of a funding transaction encoded by [`short_channel_id`].
  53          * Returns an error if `genesis_hash` is for a different chain or if such a transaction output
  54          * is unknown.
  55          *
  56          * [`short_channel_id`]: https://github.com/lightning/bolts/blob/master/07-routing-gossip.md#definition-of-short_channel_id
  57          */
  58         public Result_TxOutAccessErrorZ get_utxo(byte[] genesis_hash, long short_channel_id) {
  59                 long ret = bindings.Access_get_utxo(this.ptr, InternalUtils.check_arr_len(genesis_hash, 32), short_channel_id);
  60                 Reference.reachabilityFence(this);
  61                 Reference.reachabilityFence(genesis_hash);
  62                 Reference.reachabilityFence(short_channel_id);
  63                 if (ret >= 0 && ret <= 4096) { return null; }
  64                 Result_TxOutAccessErrorZ ret_hu_conv = Result_TxOutAccessErrorZ.constr_from_ptr(ret);
  65                 return ret_hu_conv;
  66         }
  67
  68 }