Fix HSQLDB*Transaction save() methods

Added RepositoryManager.closeRepositoryFactory() to allow swapping out of repositories during unit testing

Added some more unit tests - all pass!

src/qora/transaction/GenesisTransaction.java

@@ -7,8 +7,11 @@ import com.google.common.primitives.Bytes;
 
 import data.transaction.GenesisTransactionData;
 import data.transaction.TransactionData;
+import qora.account.Account;
 import qora.account.PrivateKeyAccount;
+import qora.assets.Asset;
 import qora.crypto.Crypto;
+import repository.DataException;
 import repository.Repository;
 import transform.TransformationException;
 import transform.transaction.TransactionTransformer;
@@ -88,31 +91,33 @@ public class GenesisTransaction extends Transaction {
 	}
 
 	@Override
-	public void process() {
+	public void process() throws DataException {
-		// TODO
+		GenesisTransactionData genesisTransactionData = (GenesisTransactionData) this.transactionData;
-		// this.save();
 
-		// Set recipient's balance
+		// Save this transaction itself
-		// TODO
+		this.repository.getTransactionRepository().save(this.transactionData);
-		// this.recipient.setConfirmedBalance(Asset.QORA, this.amount);
 
-		// Set recipient's reference
+		// Update recipient's balance
-		// TODO
+		Account recipient = new Account(repository, genesisTransactionData.getRecipient());
-		// recipient.setLastReference(this.signature);
+		recipient.setConfirmedBalance(Asset.QORA, genesisTransactionData.getAmount());
+
+		// Set recipient's starting reference
+		recipient.setLastReference(genesisTransactionData.getSignature());
 	}
 
 	@Override
-	public void orphan() {
+	public void orphan() throws DataException {
-		// TODO
+		GenesisTransactionData genesisTransactionData = (GenesisTransactionData) this.transactionData;
-		// this.delete();
 
-		// Reset recipient's balance
+		// Delete this transaction
-		// TODO
+		this.repository.getTransactionRepository().delete(this.transactionData);
-		// this.recipient.deleteBalance(Asset.QORA);
 
-		// Set recipient's reference
+		// Delete recipient's balance
-		// TODO
+		Account recipient = new Account(repository, genesisTransactionData.getRecipient());
-		// recipient.setLastReference(null);
+		recipient.deleteBalance(Asset.QORA);
+
+		// Delete recipient's last reference
+		recipient.setLastReference(null);
 	}
 
 }

src/qora/transaction/Transaction.java

@@ -187,8 +187,9 @@ public abstract class Transaction {
 	 * Load encapsulating Block from DB, if any
 	 * 
 	 * @return Block, or null if transaction is not in a Block
+	 * @throws DataException
 	 */
-	public BlockData getBlock() {
+	public BlockData getBlock() throws DataException {
 		return this.repository.getTransactionRepository().toBlock(this.transactionData);
 	}
 

src/repository/RepositoryFactory.java

@@ -4,4 +4,6 @@ public interface RepositoryFactory {
 
 	public Repository getRepository() throws DataException;
 
+	public void close() throws DataException;
+
 }

src/repository/RepositoryManager.java

@@ -2,14 +2,22 @@ package repository;
 
 public abstract class RepositoryManager {
 
-	private static RepositoryFactory repositoryFactory;
+	private static RepositoryFactory repositoryFactory = null;
 
 	public static void setRepositoryFactory(RepositoryFactory newRepositoryFactory) {
 		repositoryFactory = newRepositoryFactory;
 	}
 
 	public static Repository getRepository() throws DataException {
+		if (repositoryFactory == null)
+			throw new DataException("No repository available");
+
 		return repositoryFactory.getRepository();
 	}
 
+	public static void closeRepositoryFactory() throws DataException {
+		repositoryFactory.close();
+		repositoryFactory = null;
+	}
+
 }

src/repository/TransactionRepository.java

@@ -11,7 +11,7 @@ public interface TransactionRepository {
 
 	public int getHeight(TransactionData transactionData);
 
-	public BlockData toBlock(TransactionData transactionData);
+	public BlockData toBlock(TransactionData transactionData) throws DataException;
 
 	public void save(TransactionData transactionData) throws DataException;
 

src/repository/hsqldb/HSQLDBRepositoryFactory.java

@@ -1,6 +1,7 @@
 package repository.hsqldb;
 
 import java.sql.Connection;
+import java.sql.DriverManager;
 import java.sql.SQLException;
 
 import org.hsqldb.jdbc.JDBCPool;
@@ -18,11 +19,11 @@ public class HSQLDBRepositoryFactory implements RepositoryFactory {
 		// one-time initialization goes in here
 		this.connectionUrl = connectionUrl;
 
-		connectionPool = new JDBCPool();
+		this.connectionPool = new JDBCPool();
-		connectionPool.setUrl(this.connectionUrl);
+		this.connectionPool.setUrl(this.connectionUrl);
 
 		// Perform DB updates?
-		try (final Connection connection = connectionPool.getConnection()) {
+		try (final Connection connection = this.connectionPool.getConnection()) {
 			HSQLDBDatabaseUpdates.updateDatabase(connection);
 		} catch (SQLException e) {
 			throw new DataException("Repository initialization error", e);
@@ -47,4 +48,18 @@ public class HSQLDBRepositoryFactory implements RepositoryFactory {
 		return connection;
 	}
 
+	public void close() throws DataException {
+		try {
+			// Close all existing connections immediately
+			this.connectionPool.close(0);
+
+			// Now that all connections are closed, create a dedicated connection to shut down repository
+			Connection connection = DriverManager.getConnection(this.connectionUrl);
+			connection.createStatement().execute("SHUTDOWN");
+			connection.close();
+		} catch (SQLException e) {
+			throw new DataException("Error during repository shutdown", e);
+		}
+	}
+
 }

src/repository/hsqldb/transaction/HSQLDBCreateOrderTransactionRepository.java

@@ -36,8 +36,6 @@ public class HSQLDBCreateOrderTransactionRepository extends HSQLDBTransactionRep
 
 	@Override
 	public void save(TransactionData transactionData) throws DataException {
-		super.save(transactionData);
-
 		CreateOrderTransactionData createOrderTransactionData = (CreateOrderTransactionData) transactionData;
 
 		HSQLDBSaver saveHelper = new HSQLDBSaver("CreateAssetOrderTransactions");

src/repository/hsqldb/transaction/HSQLDBGenesisTransactionRepository.java

@@ -33,8 +33,6 @@ public class HSQLDBGenesisTransactionRepository extends HSQLDBTransactionReposit
 
 	@Override
 	public void save(TransactionData transactionData) throws DataException {
-		super.save(transactionData);
-
 		GenesisTransactionData genesisTransactionData = (GenesisTransactionData) transactionData;
 
 		HSQLDBSaver saveHelper = new HSQLDBSaver("GenesisTransactions");

src/repository/hsqldb/transaction/HSQLDBIssueAssetTransactionRepository.java

@@ -41,8 +41,6 @@ public class HSQLDBIssueAssetTransactionRepository extends HSQLDBTransactionRepo
 
 	@Override
 	public void save(TransactionData transactionData) throws DataException {
-		super.save(transactionData);
-
 		IssueAssetTransactionData issueAssetTransactionData = (IssueAssetTransactionData) transactionData;
 
 		HSQLDBSaver saveHelper = new HSQLDBSaver("IssueAssetTransactions");

src/repository/hsqldb/transaction/HSQLDBMessageTransactionRepository.java

@@ -41,8 +41,6 @@ public class HSQLDBMessageTransactionRepository extends HSQLDBTransactionReposit
 
 	@Override
 	public void save(TransactionData transactionData) throws DataException {
-		super.save(transactionData);
-
 		MessageTransactionData messageTransactionData = (MessageTransactionData) transactionData;
 
 		HSQLDBSaver saveHelper = new HSQLDBSaver("MessageTransactions");

src/repository/hsqldb/transaction/HSQLDBPaymentTransactionRepository.java

@@ -34,8 +34,6 @@ public class HSQLDBPaymentTransactionRepository extends HSQLDBTransactionReposit
 
 	@Override
 	public void save(TransactionData transactionData) throws DataException {
-		super.save(transactionData);
-
 		PaymentTransactionData paymentTransactionData = (PaymentTransactionData) transactionData;
 
 		HSQLDBSaver saveHelper = new HSQLDBSaver("PaymentTransactions");

src/repository/hsqldb/transaction/HSQLDBTransactionRepository.java

@@ -42,11 +42,11 @@ public class HSQLDBTransactionRepository implements TransactionRepository {
 
 			TransactionType type = TransactionType.valueOf(rs.getInt(1));
 			byte[] reference = this.repository.getResultSetBytes(rs.getBinaryStream(2));
-			byte[] creator = this.repository.getResultSetBytes(rs.getBinaryStream(3));
+			byte[] creatorPublicKey = this.repository.getResultSetBytes(rs.getBinaryStream(3));
 			long timestamp = rs.getTimestamp(4).getTime();
 			BigDecimal fee = rs.getBigDecimal(5).setScale(8);
 
-			return this.fromBase(type, signature, reference, creator, timestamp, fee);
+			return this.fromBase(type, signature, reference, creatorPublicKey, timestamp, fee);
 		} catch (SQLException e) {
 			throw new DataException("Unable to fetch transaction from repository", e);
 		}
@@ -60,11 +60,11 @@ public class HSQLDBTransactionRepository implements TransactionRepository {
 
 			TransactionType type = TransactionType.valueOf(rs.getInt(1));
 			byte[] signature = this.repository.getResultSetBytes(rs.getBinaryStream(2));
-			byte[] creator = this.repository.getResultSetBytes(rs.getBinaryStream(3));
+			byte[] creatorPublicKey = this.repository.getResultSetBytes(rs.getBinaryStream(3));
 			long timestamp = rs.getTimestamp(4).getTime();
 			BigDecimal fee = rs.getBigDecimal(5).setScale(8);
 
-			return this.fromBase(type, signature, reference, creator, timestamp, fee);
+			return this.fromBase(type, signature, reference, creatorPublicKey, timestamp, fee);
 		} catch (SQLException e) {
 			throw new DataException("Unable to fetch transaction from repository", e);
 		}
@@ -115,7 +115,7 @@ public class HSQLDBTransactionRepository implements TransactionRepository {
 	}
 
 	@Override
-	public BlockData toBlock(TransactionData transactionData) {
+	public BlockData toBlock(TransactionData transactionData) throws DataException {
 		byte[] signature = transactionData.getSignature();
 		if (signature == null)
 			return null;
@@ -130,7 +130,7 @@ public class HSQLDBTransactionRepository implements TransactionRepository {
 
 			return this.repository.getBlockRepository().fromSignature(blockSignature);
 		} catch (SQLException | DataException e) {
-			return null;
+			throw new DataException("Unable to fetch transaction's block from repository", e);
 		}
 	}
 
@@ -145,6 +145,32 @@ public class HSQLDBTransactionRepository implements TransactionRepository {
 		} catch (SQLException e) {
 			throw new DataException(e);
 		}
+
+		// Now call transaction-type-specific save() method
+		switch (transactionData.getType()) {
+			case GENESIS:
+				this.genesisTransactionRepository.save(transactionData);
+				break;
+
+			case PAYMENT:
+				this.paymentTransactionRepository.save(transactionData);
+				break;
+
+			case ISSUE_ASSET:
+				this.issueAssetTransactionRepository.save(transactionData);
+				break;
+
+			case CREATE_ASSET_ORDER:
+				this.createOrderTransactionRepository.save(transactionData);
+				break;
+
+			case MESSAGE:
+				this.messageTransactionRepository.save(transactionData);
+				break;
+
+			default:
+				throw new DataException("Unsupported transaction type during save into repository");
+		}
 	}
 
 	@Override
@@ -154,7 +180,7 @@ public class HSQLDBTransactionRepository implements TransactionRepository {
 		try {
 			this.repository.checkedExecute("DELETE FROM Transactions WHERE signature = ?", transactionData.getSignature());
 		} catch (SQLException e) {
-			throw new DataException(e);
+			throw new DataException("Unable to delete transaction from repository", e);
 		}
 	}
 

src/test/BlockTests.java

@@ -28,7 +28,7 @@ public class BlockTests extends Common {
 			assertNotNull(block);
 			assertTrue(block.isSignatureValid());
 			// only true if blockchain is empty
-			// assertTrue(block.isValid(connection));
+			// assertTrue(block.isValid());
 
 			List<Transaction> transactions = block.getTransactions();
 			assertNotNull(transactions);

src/test/Common.java

@@ -15,13 +15,12 @@ public class Common {
 	@BeforeClass
 	public static void setRepository() throws DataException {
 		RepositoryFactory repositoryFactory = new HSQLDBRepositoryFactory(connectionUrl);
-
 		RepositoryManager.setRepositoryFactory(repositoryFactory);
 	}
 
 	@AfterClass
 	public static void closeRepository() throws DataException {
-		// Currently a no-op?
+		RepositoryManager.closeRepositoryFactory();
 	}
 
 }

src/test/GenesisTests.java

@@ -0,0 +1,93 @@
+package test;
+
+import static org.junit.Assert.*;
+
+import java.math.BigDecimal;
+import java.util.List;
+
+import org.junit.AfterClass;
+import org.junit.BeforeClass;
+import org.junit.Test;
+
+import data.transaction.TransactionData;
+import qora.account.Account;
+import qora.assets.Asset;
+import qora.block.GenesisBlock;
+import qora.transaction.Transaction;
+import repository.DataException;
+import repository.Repository;
+import repository.RepositoryFactory;
+import repository.RepositoryManager;
+import repository.hsqldb.HSQLDBRepositoryFactory;
+
+// Don't extend Common as we want an in-memory database
+public class GenesisTests {
+
+	public static final String connectionUrl = "jdbc:hsqldb:mem:db/test;create=true;close_result=true;sql.strict_exec=true;sql.enforce_names=true;sql.syntax_mys=true";
+
+	@BeforeClass
+	public static void setRepository() throws DataException {
+		RepositoryFactory repositoryFactory = new HSQLDBRepositoryFactory(connectionUrl);
+		RepositoryManager.setRepositoryFactory(repositoryFactory);
+	}
+
+	@AfterClass
+	public static void closeRepository() throws DataException {
+		RepositoryManager.closeRepositoryFactory();
+	}
+
+	@Test
+	public void testGenesisBlockTransactions() throws DataException {
+		try (final Repository repository = RepositoryManager.getRepository()) {
+			assertEquals("Blockchain should be empty for this test", 0, repository.getBlockRepository().getBlockchainHeight());
+
+			GenesisBlock block = new GenesisBlock(repository);
+
+			assertNotNull(block);
+			assertTrue(block.isSignatureValid());
+			// Note: only true if blockchain is empty
+			assertTrue(block.isValid());
+
+			List<Transaction> transactions = block.getTransactions();
+			assertNotNull(transactions);
+
+			for (Transaction transaction : transactions) {
+				assertNotNull(transaction);
+
+				TransactionData transactionData = transaction.getTransactionData();
+
+				assertEquals(Transaction.TransactionType.GENESIS, transactionData.getType());
+				assertTrue(transactionData.getFee().compareTo(BigDecimal.ZERO) == 0);
+				assertNull(transactionData.getReference());
+				assertNotNull(transactionData.getSignature());
+				assertTrue(transaction.isSignatureValid());
+				assertEquals(Transaction.ValidationResult.OK, transaction.isValid());
+			}
+
+			// Actually try to process genesis block onto empty blockchain
+			block.process();
+			repository.saveChanges();
+
+			// Attempt to load first transaction directly from database
+			TransactionData transactionData = repository.getTransactionRepository().fromSignature(transactions.get(0).getTransactionData().getSignature());
+			assertNotNull(transactionData);
+
+			assertEquals(Transaction.TransactionType.GENESIS, transactionData.getType());
+			assertTrue(transactionData.getFee().compareTo(BigDecimal.ZERO) == 0);
+			assertNull(transactionData.getReference());
+
+			Transaction transaction = Transaction.fromData(repository, transactionData);
+			assertNotNull(transaction);
+
+			assertTrue(transaction.isSignatureValid());
+			assertEquals(Transaction.ValidationResult.OK, transaction.isValid());
+
+			// Check known balance
+			Account testAccount = new Account(repository, "QegT2Ws5YjLQzEZ9YMzWsAZMBE8cAygHZN");
+			BigDecimal testBalance = testAccount.getConfirmedBalance(Asset.QORA);
+			BigDecimal expectedBalance = new BigDecimal("12606834").setScale(8);
+			assertTrue(testBalance.compareTo(expectedBalance) == 0);
+		}
+	}
+
+}