Examples with DnsDiscovery org.bitcoinj.net.discovery.DnsDiscovery used on opensource projects

Example 1 with DnsDiscovery

use of org.bitcoinj.net.discovery.DnsDiscovery in project bisq-core by bisq-network.

the class WalletConfig method startUp.

@Override
protected void startUp() throws Exception {
    // Runs in a separate thread.
    Context.propagate(context);
    if (!directory.exists()) {
        if (!directory.mkdirs()) {
            throw new IOException("Could not create directory " + directory.getAbsolutePath());
        }
    }
    log.info("Wallet directory: {}", directory);
    try {
        File chainFile = new File(directory, spvChainFileName);
        boolean chainFileExists = chainFile.exists();
        // BTC wallet
        vBtcWalletFile = new File(directory, btcWalletFileName);
        boolean shouldReplayWallet = (vBtcWalletFile.exists() && !chainFileExists) || seed != null;
        BisqKeyChainGroup keyChainGroup;
        if (seed != null)
            keyChainGroup = new BisqKeyChainGroup(params, new BtcDeterministicKeyChain(seed), true);
        else
            keyChainGroup = new BisqKeyChainGroup(params, true);
        vBtcWallet = createOrLoadWallet(vBtcWalletFile, shouldReplayWallet, keyChainGroup, false, seed);
        vBtcWallet.allowSpendingUnconfirmedTransactions();
        if (seed != null)
            keyChainGroup = new BisqKeyChainGroup(params, new BisqDeterministicKeyChain(seed), false);
        else
            keyChainGroup = new BisqKeyChainGroup(params, new BisqDeterministicKeyChain(vBtcWallet.getKeyChainSeed()), false);
        // BSQ wallet
        if (BisqEnvironment.isBaseCurrencySupportingBsq()) {
            vBsqWalletFile = new File(directory, bsqWalletFileName);
            vBsqWallet = createOrLoadWallet(vBsqWalletFile, shouldReplayWallet, keyChainGroup, true, seed);
        }
        // Initiate Bitcoin network objects (block store, blockchain and peer group)
        vStore = provideBlockStore(chainFile);
        if (!chainFileExists || seed != null) {
            if (checkpoints != null) {
                // Initialize the chain file with a checkpoint to speed up first-run sync.
                long time;
                if (seed != null) {
                    // we created both wallets at the same time
                    time = seed.getCreationTimeSeconds();
                    if (chainFileExists) {
                        log.info("Deleting the chain file in preparation from restore.");
                        vStore.close();
                        if (!chainFile.delete())
                            throw new IOException("Failed to delete chain file in preparation for restore.");
                        vStore = new SPVBlockStore(params, chainFile);
                    }
                } else {
                    time = vBtcWallet.getEarliestKeyCreationTime();
                }
                if (time > 0)
                    CheckpointManager.checkpoint(params, checkpoints, vStore, time);
                else
                    log.warn("Creating a new uncheckpointed block store due to a wallet with a creation time of zero: this will result in a very slow chain sync");
            } else if (chainFileExists) {
                log.info("Deleting the chain file in preparation from restore.");
                vStore.close();
                if (!chainFile.delete())
                    throw new IOException("Failed to delete chain file in preparation for restore.");
                vStore = new SPVBlockStore(params, chainFile);
            }
        }
        vChain = new BlockChain(params, vStore);
        vPeerGroup = createPeerGroup();
        vPeerGroup.setBroadcastToAllPeers(true);
        if (minBroadcastConnections > 0)
            vPeerGroup.setMinBroadcastConnections(minBroadcastConnections);
        vPeerGroup.setUserAgent(userAgent, Version.VERSION);
        // before we're actually connected the broadcast waits for an appropriate number of connections.
        if (peerAddresses != null) {
            for (PeerAddress addr : peerAddresses) vPeerGroup.addAddress(addr);
            log.info("We try to connect to {} btc nodes", numConnectionForBtc);
            vPeerGroup.setMaxConnections(Math.min(numConnectionForBtc, peerAddresses.length));
            peerAddresses = null;
        } else if (!params.equals(RegTestParams.get())) {
            vPeerGroup.addPeerDiscovery(discovery != null ? discovery : new DnsDiscovery(params));
        }
        vChain.addWallet(vBtcWallet);
        vPeerGroup.addWallet(vBtcWallet);
        if (vBsqWallet != null) {
            // noinspection ConstantConditions
            vChain.addWallet(vBsqWallet);
            // noinspection ConstantConditions
            vPeerGroup.addWallet(vBsqWallet);
        }
        onSetupCompleted();
        if (blockingStartup) {
            vPeerGroup.start();
            // Make sure we shut down cleanly.
            installShutdownHook();
            final DownloadProgressTracker listener = new DownloadProgressTracker();
            vPeerGroup.startBlockChainDownload(listener);
            listener.await();
        } else {
            Futures.addCallback(vPeerGroup.startAsync(), new FutureCallback() {

                @Override
                public void onSuccess(@Nullable Object result) {
                    final PeerDataEventListener listener = downloadListener == null ? new DownloadProgressTracker() : downloadListener;
                    vPeerGroup.startBlockChainDownload(listener);
                }

                @Override
                public void onFailure(@NotNull Throwable t) {
                    throw new RuntimeException(t);
                }
            });
        }
    } catch (BlockStoreException e) {
        throw new IOException(e);
    }
}