1 package org.ldk.structs;
3 import org.ldk.impl.bindings;
4 import org.ldk.enums.*;
6 import java.util.Arrays;
7 import javax.annotation.Nullable;
11 * An implementation of [`chain::Watch`] for monitoring channels.
13 * Connected and disconnected blocks must be provided to `ChainMonitor` as documented by
14 * [`chain::Watch`]. May be used in conjunction with [`ChannelManager`] to monitor channels locally
15 * or used independently to monitor channels remotely. See the [module-level documentation] for
18 * [`ChannelManager`]: crate::ln::channelmanager::ChannelManager
19 * [module-level documentation]: crate::chain::chainmonitor
21 @SuppressWarnings("unchecked") // We correctly assign various generic arrays
22 public class ChainMonitor extends CommonBase {
23 ChainMonitor(Object _dummy, long ptr) { super(ptr); }
24 @Override @SuppressWarnings("deprecation")
25 protected void finalize() throws Throwable {
27 if (ptr != 0) { bindings.ChainMonitor_free(ptr); }
31 * Creates a new `ChainMonitor` used to watch on-chain activity pertaining to channels.
33 * When an optional chain source implementing [`chain::Filter`] is provided, the chain monitor
34 * will call back to it indicating transactions and outputs of interest. This allows clients to
35 * pre-filter blocks or only fetch blocks matching a compact filter. Otherwise, clients may
36 * always need to fetch full blocks absent another means for determining which blocks contain
37 * transactions relevant to the watched channels.
39 public static ChainMonitor of(Option_FilterZ chain_source, BroadcasterInterface broadcaster, Logger logger, FeeEstimator feeest, Persist persister) {
40 long ret = bindings.ChainMonitor_new(chain_source.ptr, broadcaster == null ? 0 : broadcaster.ptr, logger == null ? 0 : logger.ptr, feeest == null ? 0 : feeest.ptr, persister == null ? 0 : persister.ptr);
41 if (ret < 1024) { return null; }
42 ChainMonitor ret_hu_conv = new ChainMonitor(null, ret);
43 ret_hu_conv.ptrs_to.add(ret_hu_conv);
44 ret_hu_conv.ptrs_to.add(broadcaster);
45 ret_hu_conv.ptrs_to.add(logger);
46 ret_hu_conv.ptrs_to.add(feeest);
47 ret_hu_conv.ptrs_to.add(persister);
52 * Gets the balances in the contained [`ChannelMonitor`]s which are claimable on-chain or
53 * claims which are awaiting confirmation.
55 * Includes the balances from each [`ChannelMonitor`] *except* those included in
56 * `ignored_channels`, allowing you to filter out balances from channels which are still open
57 * (and whose balance should likely be pulled from the [`ChannelDetails`]).
59 * See [`ChannelMonitor::get_claimable_balances`] for more details on the exact criteria for
60 * inclusion in the return value.
62 public Balance[] get_claimable_balances(ChannelDetails[] ignored_channels) {
63 long[] ret = bindings.ChainMonitor_get_claimable_balances(this.ptr, ignored_channels != null ? Arrays.stream(ignored_channels).mapToLong(ignored_channels_conv_16 -> ignored_channels_conv_16 == null ? 0 : ignored_channels_conv_16.ptr & ~1).toArray() : null);
64 Balance[] ret_conv_9_arr = new Balance[ret.length];
65 for (int j = 0; j < ret.length; j++) {
66 long ret_conv_9 = ret[j];
67 Balance ret_conv_9_hu_conv = Balance.constr_from_ptr(ret_conv_9);
68 ret_conv_9_hu_conv.ptrs_to.add(this);
69 ret_conv_9_arr[j] = ret_conv_9_hu_conv;
71 for (ChannelDetails ignored_channels_conv_16: ignored_channels) { this.ptrs_to.add(ignored_channels_conv_16); };
72 return ret_conv_9_arr;
76 * Constructs a new Listen which calls the relevant methods on this_arg.
77 * This copies the `inner` pointer in this_arg and thus the returned Listen must be freed before this_arg is
79 public Listen as_Listen() {
80 long ret = bindings.ChainMonitor_as_Listen(this.ptr);
81 if (ret < 1024) { return null; }
82 Listen ret_hu_conv = new Listen(null, ret);
83 ret_hu_conv.ptrs_to.add(this);
88 * Constructs a new Confirm which calls the relevant methods on this_arg.
89 * This copies the `inner` pointer in this_arg and thus the returned Confirm must be freed before this_arg is
91 public Confirm as_Confirm() {
92 long ret = bindings.ChainMonitor_as_Confirm(this.ptr);
93 if (ret < 1024) { return null; }
94 Confirm ret_hu_conv = new Confirm(null, ret);
95 ret_hu_conv.ptrs_to.add(this);
100 * Constructs a new Watch which calls the relevant methods on this_arg.
101 * This copies the `inner` pointer in this_arg and thus the returned Watch must be freed before this_arg is
103 public Watch as_Watch() {
104 long ret = bindings.ChainMonitor_as_Watch(this.ptr);
105 if (ret < 1024) { return null; }
106 Watch ret_hu_conv = new Watch(null, ret);
107 ret_hu_conv.ptrs_to.add(this);
112 * Constructs a new EventsProvider which calls the relevant methods on this_arg.
113 * This copies the `inner` pointer in this_arg and thus the returned EventsProvider must be freed before this_arg is
115 public EventsProvider as_EventsProvider() {
116 long ret = bindings.ChainMonitor_as_EventsProvider(this.ptr);
117 if (ret < 1024) { return null; }
118 EventsProvider ret_hu_conv = new EventsProvider(null, ret);
119 ret_hu_conv.ptrs_to.add(this);