Java Pool类代码示例

import com.google.bitcoin.wallet.WalletTransaction.Pool; //导入依赖的package包/类
EnumSet<Pool> getContainingPools(Transaction tx) {
    lock.lock();
    try {
        EnumSet<Pool> result = EnumSet.noneOf(Pool.class);
        Sha256Hash txHash = tx.getHash();
        if (unspent.containsKey(txHash)) {
            result.add(Pool.UNSPENT);
        }
        if (spent.containsKey(txHash)) {
            result.add(Pool.SPENT);
        }
        if (pending.containsKey(txHash)) {
            result.add(Pool.PENDING);
        }
        if (dead.containsKey(txHash)) {
            result.add(Pool.DEAD);
        }
        return result;
    } finally {
        lock.unlock();
    }
}
 

import com.google.bitcoin.wallet.WalletTransaction.Pool; //导入依赖的package包/类
/**
 * Adds the given transaction to the given pools and registers a confidence change listener on it.
 */
private void addWalletTransaction(Pool pool, Transaction tx) {
    checkState(lock.isHeldByCurrentThread());
    transactions.put(tx.getHash(), tx);
    switch (pool) {
    case UNSPENT:
        checkState(unspent.put(tx.getHash(), tx) == null);
        break;
    case SPENT:
        checkState(spent.put(tx.getHash(), tx) == null);
        break;
    case PENDING:
        checkState(pending.put(tx.getHash(), tx) == null);
        break;
    case DEAD:
        checkState(dead.put(tx.getHash(), tx) == null);
        break;
    default:
        throw new RuntimeException("Unknown wallet transaction type " + pool);
    }
    // This is safe even if the listener has been added before, as TransactionConfidence ignores duplicate
    // registration requests. That makes the code in the wallet simpler.
    tx.getConfidence().addEventListener(txConfidenceListener, Threading.SAME_THREAD);
}
 

import com.google.bitcoin.wallet.WalletTransaction.Pool; //导入依赖的package包/类
@Test
public void sideChain() throws Exception {
    // The wallet receives a coin on the main chain, then on a side chain. Balance is equal to both added together
    // as we assume the side chain tx is pending and will be included shortly.
    BigInteger v1 = Utils.toNanoCoins(1, 0);
    sendMoneyToWallet(v1, AbstractBlockChain.NewBlockType.BEST_CHAIN);
    assertEquals(v1, wallet.getBalance());
    assertEquals(1, wallet.getPoolSize(WalletTransaction.Pool.UNSPENT));
    assertEquals(1, wallet.getTransactions(true).size());

    BigInteger v2 = toNanoCoins(0, 50);
    sendMoneyToWallet(v2, AbstractBlockChain.NewBlockType.SIDE_CHAIN);
    assertEquals(2, wallet.getTransactions(true).size());
    assertEquals(v1, wallet.getBalance());
    assertEquals(v1.add(v2), wallet.getBalance(Wallet.BalanceType.ESTIMATED));
}
 

import com.google.bitcoin.wallet.WalletTransaction.Pool; //导入依赖的package包/类
@Test
public void spendToSameWallet() throws Exception {
    // Test that a spend to the same wallet is dealt with correctly.
    // It should appear in the wallet and confirm.
    // This is a bit of a silly thing to do in the real world as all it does is burn a fee but it is perfectly valid.
    BigInteger coin1 = Utils.toNanoCoins(1, 0);
    BigInteger coinHalf = Utils.toNanoCoins(0, 50);
    // Start by giving us 1 coin.
    sendMoneyToWallet(coin1, AbstractBlockChain.NewBlockType.BEST_CHAIN);
    // Send half to ourselves. We should then have a balance available to spend of zero.
    assertEquals(1, wallet.getPoolSize(WalletTransaction.Pool.UNSPENT));
    assertEquals(1, wallet.getTransactions(true).size());
    Transaction outbound1 = wallet.createSend(myAddress, coinHalf);
    wallet.commitTx(outbound1);
    // We should have a zero available balance before the next block.
    assertEquals(BigInteger.ZERO, wallet.getBalance());
    sendMoneyToWallet(outbound1, AbstractBlockChain.NewBlockType.BEST_CHAIN);
    // We should have a balance of 1 BTC after the block is received.
    assertEquals(coin1, wallet.getBalance());
}
 

import com.google.bitcoin.wallet.WalletTransaction.Pool; //导入依赖的package包/类
@Test
public void replayWhilstPending() throws Exception {
    // Check that if a pending transaction spends outputs of chain-included transactions, we mark them as spent.
    // See bug 345. This can happen if there is a pending transaction floating around and then you replay the
    // chain without emptying the memory pool (or refilling it from a peer).
    BigInteger value = Utils.toNanoCoins(1, 0);
    Transaction tx1 = createFakeTx(params, value, myAddress);
    Transaction tx2 = new Transaction(params);
    tx2.addInput(tx1.getOutput(0));
    tx2.addOutput(Utils.toNanoCoins(0, 9), new ECKey());
    // Add a change address to ensure this tx is relevant.
    tx2.addOutput(Utils.toNanoCoins(0, 1), wallet.getChangeAddress());
    wallet.receivePending(tx2, null);
    BlockPair bp = createFakeBlock(blockStore, tx1);
    wallet.receiveFromBlock(tx1, bp.storedBlock, AbstractBlockChain.NewBlockType.BEST_CHAIN, 0);
    wallet.notifyNewBestBlock(bp.storedBlock);
    assertEquals(BigInteger.ZERO, wallet.getBalance());
    assertEquals(1, wallet.getPoolSize(Pool.SPENT));
    assertEquals(1, wallet.getPoolSize(Pool.PENDING));
    assertEquals(0, wallet.getPoolSize(Pool.UNSPENT));
}
 

import com.google.bitcoin.wallet.WalletTransaction.Pool; //导入依赖的package包/类
int getPoolSize(WalletTransaction.Pool pool) {
    lock.lock();
    try {
        switch (pool) {
            case UNSPENT:
                return unspent.size();
            case SPENT:
                return spent.size();
            case PENDING:
                return pending.size();
            case DEAD:
                return dead.size();
        }
        throw new RuntimeException("Unreachable");
    } finally {
        lock.unlock();
    }
}
 

import com.google.bitcoin.wallet.WalletTransaction.Pool; //导入依赖的package包/类
@Test
public void bounce() throws Exception {
    // This test covers bug 64 (False double spends). Check that if we create a spend and it's immediately sent
    // back to us, this isn't considered as a double spend.
    BigInteger coin1 = Utils.toNanoCoins(1, 0);
    sendMoneyToWallet(coin1, AbstractBlockChain.NewBlockType.BEST_CHAIN);
    // Send half to some other guy. Sending only half then waiting for a confirm is important to ensure the tx is
    // in the unspent pool, not pending or spent.
    BigInteger coinHalf = Utils.toNanoCoins(0, 50);
    assertEquals(1, wallet.getPoolSize(WalletTransaction.Pool.UNSPENT));
    assertEquals(1, wallet.getTransactions(true).size());
    Address someOtherGuy = new ECKey().toAddress(params);
    Transaction outbound1 = wallet.createSend(someOtherGuy, coinHalf);
    wallet.commitTx(outbound1);
    sendMoneyToWallet(outbound1, AbstractBlockChain.NewBlockType.BEST_CHAIN);
    // That other guy gives us the coins right back.
    Transaction inbound2 = new Transaction(params);
    inbound2.addOutput(new TransactionOutput(params, inbound2, coinHalf, myAddress));
    inbound2.addInput(outbound1.getOutputs().get(0));
    sendMoneyToWallet(inbound2, AbstractBlockChain.NewBlockType.BEST_CHAIN);
    assertEquals(coin1, wallet.getBalance());
}
 

import com.google.bitcoin.wallet.WalletTransaction.Pool; //导入依赖的package包/类
/**
 * Returns a set of all WalletTransactions in the wallet.
 */
public Iterable<WalletTransaction> getWalletTransactions() {
    lock.lock();
    try {
        Set<WalletTransaction> all = new HashSet<WalletTransaction>();
        addWalletTransactionsToSet(all, Pool.UNSPENT, unspent.values());
        addWalletTransactionsToSet(all, Pool.SPENT, spent.values());
        addWalletTransactionsToSet(all, Pool.DEAD, dead.values());
        addWalletTransactionsToSet(all, Pool.PENDING, pending.values());
        return all;
    } finally {
        lock.unlock();
    }
}
 

import com.google.bitcoin.wallet.WalletTransaction.Pool; //导入依赖的package包/类
private Transaction cleanupCommon(Address destination) throws Exception {
    receiveATransaction(wallet, myAddress);

    BigInteger v2 = toNanoCoins(0, 50);
    SendRequest req = SendRequest.to(destination, v2);
    req.fee = toNanoCoins(0, 1);
    wallet.completeTx(req);

    Transaction t2 = req.tx;

    // Broadcast the transaction and commit.
    broadcastAndCommit(wallet, t2);

    // At this point we have one pending and one spent

    BigInteger v1 = toNanoCoins(0, 10);
    Transaction t = sendMoneyToWallet(wallet, v1, myAddress, null);
    Threading.waitForUserCode();
    sendMoneyToWallet(wallet, t, null);
    assertEquals("Wrong number of PENDING.4", 2, wallet.getPoolSize(Pool.PENDING));
    assertEquals("Wrong number of UNSPENT.4", 0, wallet.getPoolSize(Pool.UNSPENT));
    assertEquals("Wrong number of ALL.4", 3, wallet.getTransactions(true).size());
    assertEquals(toNanoCoins(0, 59), wallet.getBalance(Wallet.BalanceType.ESTIMATED));

    // Now we have another incoming pending
    return t;
}
 

import com.google.bitcoin.wallet.WalletTransaction.Pool; //导入依赖的package包/类
/**
 * Returns an list of N transactions, ordered by increasing age. Transactions on side chains are not included.
 * Dead transactions (overridden by double spends) are optionally included. <p>
 * <p/>
 * Note: the current implementation is O(num transactions in wallet). Regardless of how many transactions are
 * requested, the cost is always the same. In future, requesting smaller numbers of transactions may be faster
 * depending on how the wallet is implemented (eg if backed by a database).
 */
public List<Transaction> getRecentTransactions(int numTransactions, boolean includeDead) {
    lock.lock();
    try {
        checkArgument(numTransactions >= 0);
        // Firstly, put all transactions into an array.
        int size = getPoolSize(Pool.UNSPENT) +
                getPoolSize(Pool.SPENT) +
                getPoolSize(Pool.PENDING);
        if (numTransactions > size || numTransactions == 0) {
            numTransactions = size;
        }
        ArrayList<Transaction> all = new ArrayList<Transaction>(getTransactions(includeDead));
        // Order by date.
        Collections.sort(all, Collections.reverseOrder(new Comparator<Transaction>() {
            public int compare(Transaction t1, Transaction t2) {
                return t1.getUpdateTime().compareTo(t2.getUpdateTime());
            }
        }));
        if (numTransactions == all.size()) {
            return all;
        } else {
            all.subList(numTransactions, all.size()).clear();
            return all;
        }
    } finally {
        lock.unlock();
    }
}
 

import com.google.bitcoin.wallet.WalletTransaction.Pool; //导入依赖的package包/类
@Test
public void isConsistent_pools() throws Exception {
    // This test ensures that isConsistent catches transactions that are in incompatible pools.
    Transaction tx = createFakeTx(params, Utils.toNanoCoins(1, 0), myAddress);
    Address someOtherGuy = new ECKey().toAddress(params);
    TransactionOutput output = new TransactionOutput(params, tx, Utils.toNanoCoins(0, 5), someOtherGuy);
    tx.addOutput(output);
    wallet.receiveFromBlock(tx, null, BlockChain.NewBlockType.BEST_CHAIN, 0);

    assertTrue(wallet.isConsistent());

    wallet.addWalletTransaction(new WalletTransaction(Pool.PENDING, tx));
    assertFalse(wallet.isConsistent());
}
 

import com.google.bitcoin.wallet.WalletTransaction.Pool; //导入依赖的package包/类
@Test
public void cleanup() throws Exception {
    Address destination = new ECKey().toAddress(params);
    Transaction t = cleanupCommon(destination);

    // Consider the new pending as risky and remove it from the wallet
    wallet.setRiskAnalyzer(new TestRiskAnalysis.Analyzer(t));

    wallet.cleanup();
    assertTrue(wallet.isConsistent());
    assertEquals("Wrong number of PENDING.5", 1, wallet.getPoolSize(WalletTransaction.Pool.PENDING));
    assertEquals("Wrong number of UNSPENT.5", 0, wallet.getPoolSize(WalletTransaction.Pool.UNSPENT));
    assertEquals("Wrong number of ALL.5", 2, wallet.getTransactions(true).size());
    assertEquals(toNanoCoins(0, 49), wallet.getBalance(Wallet.BalanceType.ESTIMATED));
}
 

import com.google.bitcoin.wallet.WalletTransaction.Pool; //导入依赖的package包/类
@Test
public void customTransactionSpending() throws Exception {
    // We'll set up a wallet that receives a coin, then sends a coin of lesser value and keeps the change.
    BigInteger v1 = Utils.toNanoCoins(3, 0);
    sendMoneyToWallet(v1, AbstractBlockChain.NewBlockType.BEST_CHAIN);
    assertEquals(v1, wallet.getBalance());
    assertEquals(1, wallet.getPoolSize(WalletTransaction.Pool.UNSPENT));
    assertEquals(1, wallet.getTransactions(true).size());

    ECKey k2 = new ECKey();
    Address a2 = k2.toAddress(params);
    BigInteger v2 = toNanoCoins(0, 50);
    BigInteger v3 = toNanoCoins(0, 75);
    BigInteger v4 = toNanoCoins(1, 25);

    Transaction t2 = new Transaction(params);
    t2.addOutput(v2, a2);
    t2.addOutput(v3, a2);
    t2.addOutput(v4, a2);
    SendRequest req = SendRequest.forTx(t2);
    req.ensureMinRequiredFee = false;
    wallet.completeTx(req);

    // Do some basic sanity checks.
    assertEquals(1, t2.getInputs().size());
    assertEquals(myAddress, t2.getInputs().get(0).getScriptSig().getFromAddress(params));
    assertEquals(TransactionConfidence.ConfidenceType.UNKNOWN, t2.getConfidence().getConfidenceType());

    // We have NOT proven that the signature is correct!
    wallet.commitTx(t2);
    assertEquals(1, wallet.getPoolSize(WalletTransaction.Pool.PENDING));
    assertEquals(1, wallet.getPoolSize(WalletTransaction.Pool.SPENT));
    assertEquals(2, wallet.getTransactions(true).size());
}
 

import com.google.bitcoin.wallet.WalletTransaction.Pool; //导入依赖的package包/类
@Test
public void balance() throws Exception {
    // Receive 5 coins then half a coin.
    BigInteger v1 = toNanoCoins(5, 0);
    BigInteger v2 = toNanoCoins(0, 50);
    BigInteger expected = toNanoCoins(5, 50);
    assertEquals(0, wallet.getTransactions(true).size());
    sendMoneyToWallet(v1, AbstractBlockChain.NewBlockType.BEST_CHAIN);
    assertEquals(1, wallet.getPoolSize(WalletTransaction.Pool.UNSPENT));
    sendMoneyToWallet(v2, AbstractBlockChain.NewBlockType.BEST_CHAIN);
    assertEquals(2, wallet.getPoolSize(WalletTransaction.Pool.UNSPENT));
    assertEquals(expected, wallet.getBalance());

    // Now spend one coin.
    BigInteger v3 = toNanoCoins(1, 0);
    Transaction spend = wallet.createSend(new ECKey().toAddress(params), v3);
    wallet.commitTx(spend);
    assertEquals(1, wallet.getPoolSize(WalletTransaction.Pool.PENDING));

    // Available and estimated balances should not be the same. We don't check the exact available balance here
    // because it depends on the coin selection algorithm.
    assertEquals(toNanoCoins(4, 50), wallet.getBalance(Wallet.BalanceType.ESTIMATED));
    assertFalse(wallet.getBalance(Wallet.BalanceType.AVAILABLE).equals(
                wallet.getBalance(Wallet.BalanceType.ESTIMATED)));

    // Now confirm the transaction by including it into a block.
    StoredBlock b3 = createFakeBlock(blockStore, spend).storedBlock;
    wallet.receiveFromBlock(spend, b3, BlockChain.NewBlockType.BEST_CHAIN, 0);

    // Change is confirmed. We started with 5.50 so we should have 4.50 left.
    BigInteger v4 = toNanoCoins(4, 50);
    assertEquals(v4, wallet.getBalance(Wallet.BalanceType.AVAILABLE));
}
 

import com.google.bitcoin.wallet.WalletTransaction.Pool; //导入依赖的package包/类
@Test
public void isConsistent_spent() throws Exception {
    // This test ensures that isConsistent catches transactions that are marked spent when
    // they aren't.
    Transaction tx = createFakeTx(params, Utils.toNanoCoins(1, 0), myAddress);
    Address someOtherGuy = new ECKey().toAddress(params);
    TransactionOutput output = new TransactionOutput(params, tx, Utils.toNanoCoins(0, 5), someOtherGuy);
    tx.addOutput(output);
    assertTrue(wallet.isConsistent());

    wallet.addWalletTransaction(new WalletTransaction(Pool.SPENT, tx));
    assertFalse(wallet.isConsistent());
}