_ Git - ldk-java/blob - src/main/java/org/ldk/structs/Score.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  * An interface used to score payment channels for path finding.
  12  *
  13  * \tScoring is in terms of fees willing to be paid in order to avoid routing through a channel.
  14  */
  15 @SuppressWarnings("unchecked") // We correctly assign various generic arrays
  16 public class Score extends CommonBase {
  17         final bindings.LDKScore bindings_instance;
  18         Score(Object _dummy, long ptr) { super(ptr); bindings_instance = null; }
  19         private Score(bindings.LDKScore arg) {
  20                 super(bindings.LDKScore_new(arg));
  21                 this.ptrs_to.add(arg);
  22                 this.bindings_instance = arg;
  23         }
  24         @Override @SuppressWarnings("deprecation")
  25         protected void finalize() throws Throwable {
  26                 if (ptr != 0) { bindings.Score_free(ptr); } super.finalize();
  27         }
  28         /**
  29          * Destroys the object, freeing associated resources. After this call, any access
  30          * to this object may result in a SEGFAULT or worse.
  31          *
  32          * You should generally NEVER call this method. You should let the garbage collector
  33          * do this for you when it finalizes objects. However, it may be useful for types
  34          * which represent locks and should be closed immediately to avoid holding locks
  35          * until the GC runs.
  36          */
  37         public void destroy() {
  38                 if (ptr != 0) { bindings.Score_free(ptr); }
  39                 ptr = 0;
  40         }
  41         public static interface ScoreInterface {
  42                 /**
  43                  * Returns the fee in msats willing to be paid to avoid routing `send_amt_msat` through the
  44                  * given channel in the direction from `source` to `target`.
  45                  *
  46                  * The channel's capacity (less any other MPP parts that are also being considered for use in
  47                  * the same payment) is given by `capacity_msat`. It may be determined from various sources
  48                  * such as a chain data, network gossip, or invoice hints. For invoice hints, a capacity near
  49                  * [`u64::max_value`] is given to indicate sufficient capacity for the invoice's full amount.
  50                  * Thus, implementations should be overflow-safe.
  51                  */
  52                 long channel_penalty_msat(long short_channel_id, NodeId source, NodeId target, ChannelUsage usage);
  53                 /**
  54                  * Handles updating channel penalties after failing to route through a channel.
  55                  */
  56                 void payment_path_failed(RouteHop[] path, long short_channel_id);
  57                 /**
  58                  * Handles updating channel penalties after successfully routing along a path.
  59                  */
  60                 void payment_path_successful(RouteHop[] path);
  61                 /**
  62                  * Handles updating channel penalties after a probe over the given path failed.
  63                  */
  64                 void probe_failed(RouteHop[] path, long short_channel_id);
  65                 /**
  66                  * Handles updating channel penalties after a probe over the given path succeeded.
  67                  */
  68                 void probe_successful(RouteHop[] path);
  69                 /**
  70                  * Serialize the object into a byte array
  71                  */
  72                 byte[] write();
  73         }
  74         private static class LDKScoreHolder { Score held; }
  75         public static Score new_impl(ScoreInterface arg) {
  76                 final LDKScoreHolder impl_holder = new LDKScoreHolder();
  77                 impl_holder.held = new Score(new bindings.LDKScore() {
  78                         @Override public long channel_penalty_msat(long short_channel_id, long source, long target, long usage) {
  79                                 org.ldk.structs.NodeId source_hu_conv = null; if (source < 0 || source > 4096) { source_hu_conv = new org.ldk.structs.NodeId(null, source); }
  80                                 org.ldk.structs.NodeId target_hu_conv = null; if (target < 0 || target > 4096) { target_hu_conv = new org.ldk.structs.NodeId(null, target); }
  81                                 org.ldk.structs.ChannelUsage usage_hu_conv = null; if (usage < 0 || usage > 4096) { usage_hu_conv = new org.ldk.structs.ChannelUsage(null, usage); }
  82                                 if (usage_hu_conv != null) { usage_hu_conv.ptrs_to.add(this); };
  83                                 long ret = arg.channel_penalty_msat(short_channel_id, source_hu_conv, target_hu_conv, usage_hu_conv);
  84                                 Reference.reachabilityFence(arg);
  85                                 return ret;
  86                         }
  87                         @Override public void payment_path_failed(long[] path, long short_channel_id) {
  88                                 int path_conv_10_len = path.length;
  89                                 RouteHop[] path_conv_10_arr = new RouteHop[path_conv_10_len];
  90                                 for (int k = 0; k < path_conv_10_len; k++) {
  91                                         long path_conv_10 = path[k];
  92                                         org.ldk.structs.RouteHop path_conv_10_hu_conv = null; if (path_conv_10 < 0 || path_conv_10 > 4096) { path_conv_10_hu_conv = new org.ldk.structs.RouteHop(null, path_conv_10); }
  93                                         if (path_conv_10_hu_conv != null) { path_conv_10_hu_conv.ptrs_to.add(this); };
  94                                         path_conv_10_arr[k] = path_conv_10_hu_conv;
  95                                 }
  96                                 arg.payment_path_failed(path_conv_10_arr, short_channel_id);
  97                                 Reference.reachabilityFence(arg);
  98                         }
  99                         @Override public void payment_path_successful(long[] path) {
 100                                 int path_conv_10_len = path.length;
 101                                 RouteHop[] path_conv_10_arr = new RouteHop[path_conv_10_len];
 102                                 for (int k = 0; k < path_conv_10_len; k++) {
 103                                         long path_conv_10 = path[k];
 104                                         org.ldk.structs.RouteHop path_conv_10_hu_conv = null; if (path_conv_10 < 0 || path_conv_10 > 4096) { path_conv_10_hu_conv = new org.ldk.structs.RouteHop(null, path_conv_10); }
 105                                         if (path_conv_10_hu_conv != null) { path_conv_10_hu_conv.ptrs_to.add(this); };
 106                                         path_conv_10_arr[k] = path_conv_10_hu_conv;
 107                                 }
 108                                 arg.payment_path_successful(path_conv_10_arr);
 109                                 Reference.reachabilityFence(arg);
 110                         }
 111                         @Override public void probe_failed(long[] path, long short_channel_id) {
 112                                 int path_conv_10_len = path.length;
 113                                 RouteHop[] path_conv_10_arr = new RouteHop[path_conv_10_len];
 114                                 for (int k = 0; k < path_conv_10_len; k++) {
 115                                         long path_conv_10 = path[k];
 116                                         org.ldk.structs.RouteHop path_conv_10_hu_conv = null; if (path_conv_10 < 0 || path_conv_10 > 4096) { path_conv_10_hu_conv = new org.ldk.structs.RouteHop(null, path_conv_10); }
 117                                         if (path_conv_10_hu_conv != null) { path_conv_10_hu_conv.ptrs_to.add(this); };
 118                                         path_conv_10_arr[k] = path_conv_10_hu_conv;
 119                                 }
 120                                 arg.probe_failed(path_conv_10_arr, short_channel_id);
 121                                 Reference.reachabilityFence(arg);
 122                         }
 123                         @Override public void probe_successful(long[] path) {
 124                                 int path_conv_10_len = path.length;
 125                                 RouteHop[] path_conv_10_arr = new RouteHop[path_conv_10_len];
 126                                 for (int k = 0; k < path_conv_10_len; k++) {
 127                                         long path_conv_10 = path[k];
 128                                         org.ldk.structs.RouteHop path_conv_10_hu_conv = null; if (path_conv_10 < 0 || path_conv_10 > 4096) { path_conv_10_hu_conv = new org.ldk.structs.RouteHop(null, path_conv_10); }
 129                                         if (path_conv_10_hu_conv != null) { path_conv_10_hu_conv.ptrs_to.add(this); };
 130                                         path_conv_10_arr[k] = path_conv_10_hu_conv;
 131                                 }
 132                                 arg.probe_successful(path_conv_10_arr);
 133                                 Reference.reachabilityFence(arg);
 134                         }
 135                         @Override public byte[] write() {
 136                                 byte[] ret = arg.write();
 137                                 Reference.reachabilityFence(arg);
 138                                 return ret;
 139                         }
 140                 });
 141                 return impl_holder.held;
 142         }
 143         /**
 144          * Returns the fee in msats willing to be paid to avoid routing `send_amt_msat` through the
 145          * given channel in the direction from `source` to `target`.
 146          *
 147          * The channel's capacity (less any other MPP parts that are also being considered for use in
 148          * the same payment) is given by `capacity_msat`. It may be determined from various sources
 149          * such as a chain data, network gossip, or invoice hints. For invoice hints, a capacity near
 150          * [`u64::max_value`] is given to indicate sufficient capacity for the invoice's full amount.
 151          * Thus, implementations should be overflow-safe.
 152          */
 153         public long channel_penalty_msat(long short_channel_id, org.ldk.structs.NodeId source, org.ldk.structs.NodeId target, org.ldk.structs.ChannelUsage usage) {
 154                 long ret = bindings.Score_channel_penalty_msat(this.ptr, short_channel_id, source == null ? 0 : source.ptr, target == null ? 0 : target.ptr, usage == null ? 0 : usage.ptr);
 155                 Reference.reachabilityFence(this);
 156                 Reference.reachabilityFence(short_channel_id);
 157                 Reference.reachabilityFence(source);
 158                 Reference.reachabilityFence(target);
 159                 Reference.reachabilityFence(usage);
 160                 if (this != null) { this.ptrs_to.add(source); };
 161                 if (this != null) { this.ptrs_to.add(target); };
 162                 if (this != null) { this.ptrs_to.add(usage); };
 163                 return ret;
 164         }
 165
 166         /**
 167          * Handles updating channel penalties after failing to route through a channel.
 168          */
 169         public void payment_path_failed(RouteHop[] path, long short_channel_id) {
 170                 bindings.Score_payment_path_failed(this.ptr, path != null ? Arrays.stream(path).mapToLong(path_conv_10 -> path_conv_10 == null ? 0 : path_conv_10.ptr).toArray() : null, short_channel_id);
 171                 Reference.reachabilityFence(this);
 172                 Reference.reachabilityFence(path);
 173                 Reference.reachabilityFence(short_channel_id);
 174                 for (RouteHop path_conv_10: path) { if (this != null) { this.ptrs_to.add(path_conv_10); }; };
 175         }
 176
 177         /**
 178          * Handles updating channel penalties after successfully routing along a path.
 179          */
 180         public void payment_path_successful(RouteHop[] path) {
 181                 bindings.Score_payment_path_successful(this.ptr, path != null ? Arrays.stream(path).mapToLong(path_conv_10 -> path_conv_10 == null ? 0 : path_conv_10.ptr).toArray() : null);
 182                 Reference.reachabilityFence(this);
 183                 Reference.reachabilityFence(path);
 184                 for (RouteHop path_conv_10: path) { if (this != null) { this.ptrs_to.add(path_conv_10); }; };
 185         }
 186
 187         /**
 188          * Handles updating channel penalties after a probe over the given path failed.
 189          */
 190         public void probe_failed(RouteHop[] path, long short_channel_id) {
 191                 bindings.Score_probe_failed(this.ptr, path != null ? Arrays.stream(path).mapToLong(path_conv_10 -> path_conv_10 == null ? 0 : path_conv_10.ptr).toArray() : null, short_channel_id);
 192                 Reference.reachabilityFence(this);
 193                 Reference.reachabilityFence(path);
 194                 Reference.reachabilityFence(short_channel_id);
 195                 for (RouteHop path_conv_10: path) { if (this != null) { this.ptrs_to.add(path_conv_10); }; };
 196         }
 197
 198         /**
 199          * Handles updating channel penalties after a probe over the given path succeeded.
 200          */
 201         public void probe_successful(RouteHop[] path) {
 202                 bindings.Score_probe_successful(this.ptr, path != null ? Arrays.stream(path).mapToLong(path_conv_10 -> path_conv_10 == null ? 0 : path_conv_10.ptr).toArray() : null);
 203                 Reference.reachabilityFence(this);
 204                 Reference.reachabilityFence(path);
 205                 for (RouteHop path_conv_10: path) { if (this != null) { this.ptrs_to.add(path_conv_10); }; };
 206         }
 207
 208         /**
 209          * Serialize the object into a byte array
 210          */
 211         public byte[] write() {
 212                 byte[] ret = bindings.Score_write(this.ptr);
 213                 Reference.reachabilityFence(this);
 214                 return ret;
 215         }
 216
 217 }