16 Commits

Author SHA1 Message Date
catbref
ad9fa9bf9d More work on API plus basic block explorer
Added FATJAR packaging support to pom.xml

Added some "summary" fields to API calls but more need doing.
Corrected path clash from having unnecessary @OpenAPIDefinition annotations.
Added API "tags" to group similar calls (address-based, block-related, etc.)
Fixed addresses/lastreference/{address}
Implemented addresses/lastreference/{address}/unconfirmed
Implemented addresses/assets/{address}
Added /admin/stop and /admin/uptime API calls.
Moved general API info into new src/api/ApiDefinition.java
Added CORS support to ApiService
Added /transactions/address/{address} and /transactions/block/{signature}

Replaced references to test.Common.* to do with repository factory.
 This fixes issues with building FATJAR due to references to test classes
 that are omitted from FATJAR.

Changes to AccountBalanceData, BlockData and TransactionData
 to support JAX-RS rendering to JSON.

Added getUnconfirmedLastReference() to Account.

Added getAllBalances(address) to account repository
 - returns all asset balances for that address.

Added getAllSignaturesInvolvingAddress(address) to account repository
 but currently only uses TransactionRecipients HSQLDB table.
 (And even that wasn't automatically populated).

Included: very basic block explorer to be opened in browser as a file:
block-explorer.html
2018-12-04 16:34:55 +00:00
catbref
2c51a0362b Finally syncs with qora1 chain!
ATData no longer needs deploySignature as a link back to DeployATTransaction,
but does need creator and creation [timestamp].
"creation" is critical for ordering ATs when creating/validating blocks.

Similar changes to ATStateData, adding creation, stateHash (for quicker
comparison with blocks received over the network), and fees incurred
by running AT on that block.
Also added more explicit constructors for different scenarios.

BlockData upgraded from simplistic "atBytes" to use ATStateData (above)
which has details on ATs run for that block, fees incurred, and a hash
of the AT's state. atCount added to keep track of how many ATs ran.

ATTransactions essentially reuse the GenesisAccount's publickey as
creator/sender as they're brought into existence by the Qora code
rather than an end user. ATTransactionData updated to reflect this
and the AT's address used as a "sender" field.

Account tidied up with respect to CIYAM ATs and setConfirmedBalance
ensures there is a corresponding record in Accounts (DB table).

Account, and subclasses, don't need "throws DataException" on
constructor any more.

Fixed bug in Asset Order matching where the matching engine
would give up after first potential match instead of trying others.

Lots more work on CIYAM AT, albeit mainly blind importing of old
v1 ATs from static JSON file as they're all dead and new
v2 implementation is not backwards compatible.

More work on Blocks, mostly AT stuff, but also fork-based corruption
prevention using fix from Qora v1.

Payment-related transactions (multipayment, etc.) always expect/use
non-null (albeit maybe empty) list of PaymentData when validating,
processing or orphaning.
Mainly a change in HSQLDBTransactionRepository.getPayments()

Payment.isValid(byte[], PaymentData, BigDecimal, boolean isZeroAmountValid)
didn't pass on isZeroAmountValid to called method - whoops!

Lots of work on ATTransactions themselves.

MessageTransactions incorrectly assumed the optional payment was always
in Qora. Now fixed to use the transaction's provided assetId.

Mass of fixes/additions to HSQLDBATRepository, especially fixing
incorrect reference to Assets DB table!

In HSQLDBDatabaseUpdates, bump QoraAmount type from DECIMAL(19,8)
to DECIMAL(27,8) to allow for huge asset quantities.
You WILL have to rebuild your database!
2018-10-26 17:47:47 +01:00
catbref
ad250e57c8 Fix issues with payments, asset trades and voting.
Some payments don't always initialize the recipient's
last reference, depending on whether the asset is QORA or not and
what type of transaction is being processed.
Calls to Payment.process/orphan now take boolean to indicate
whether recipient's last reference should always be initialized
regardless of asset.
("initialized" here means setting an initial last reference for
an account if the current value is null/empty/missing)

When matching orders to produce trades, it isn't enough to only
sort orders with best price first. Orders with the same price also
need to be further sorted by earliest order first. (This was
implicitly done in Qora v1). Added additional ORDER BY sub-clause
to achieve this and improved the corresponding table index too.

Converted a lot of logging from simplistic System.out/err.println
to Apache log4j2. Added several "trace"-level logging statements
to aid debugging which can be activated given appropriate
configuration in log4j2.properties.

With voting, detection of previous votes was broken during orphan
as previousOptionIndex was set to 0 instead of null when fetching
a VoteOnPollTransaction from the HSQLDB repository. This was due
to lack of null-checking - now fixed.
Corresponding changes made in IssueAsset and Message
transaction HSQLDB repository classes.

v1feeder now syncs up to block 99055. Block 99056 contains DeployAT.
Orphaning back to block 1 and then resync works without issue too.
2018-08-08 17:02:41 +01:00
catbref
fe6cb4e366 Added Vote-on-poll transaction
* Added simple genesis block timestamp setting to help testing

* Fixed setting account's last reference

* Moved some Poll constants from CreatePollTransaction to Poll

* HSQLDB: added TYPE PollOptionIndex
* HSQLDB: added previous_option_index to VoteOnPollTransactions table to help orphaning
* HSQLDB: renamed "poll" to "poll_name" in same table
* HSQLDB: PollOptions now has additional option_index column

* Improved TransactionTests to allow for different genesis block timestamps.
* Also added VoteOnPollTransaction test
2018-06-29 10:29:18 +01:00
catbref
c5a32ffa1c Block/Transaction processing
* Add implementation for Account.getBalance(assetId, numberOfConfirmations)

* Added orphan() code to Block (CIYAM AT not yet supported)

* Added getOrder() 'navigation' method to CreateOrderTransaction

* Added missing transaction-type cases to various switches in Transaction, transformers, repositories, etc.

* Various repository delete() methods added

* Added save/delete support for transaction types that include payments, like multipayment and arbitrary

* Changed "recipient" in HSQLDB SharedTransactionPayments from QoraPublicKey to QoraAddress
2018-06-19 09:50:58 +01:00
catbref
4a1c3821db Progess on block and transaction processing + tidying up
* Code added for calculating an account's generating balance. (CIYAM AT support yet to be added).
* Added associated code in Block for calculating next block's timestamp, generating balance, base target, etc.

* ValidationResult enum added to Block, mostly to aid debugging.
* Block.isValid() now returns ValidationResult instead of boolean.
* Block.isValid() now has added proof-of-stake tests.

* Some blockchain-related constants, like feature release heights/timestamps, moved from Block to BlockChain.

* Added better Block constructor for use when creating a new block.
* Added helpful 'navigation' methods to Block to get to block's parent (or child).

* Changed visibility of block's individual signature calculators to protected, in favour of public sign() method.

* Added asset existence check to Payment.isValid.

* All current transaction objects (qora.transaction.*) now have private subclassed transaction variable to save multiple casts in various methods.
* Also added to above:
* isInvolved(Account) : boolean
* getRecipients() : List<Account>
* getAmount(Account) : BigDecimal

* Added BlockRepository.getLastBlock() to fetch highest block in blockchain.

* Added diagnostics to HSQLDBRepository.close() to alert if there are any uncommitted changes during closure.
(Currently under suspicion due to possible HSQLDB bug!)

* Old "TransactionTests" renamed to "SerializationTests" as that's what they really are.

* New "TransactionTests" added to test processing of transactions. (Currently only a PaymentTransaction).

* PaymentTransformer.toBytes() detects and skips null signature. This was causing issues with Transaction.toBytesLessSignature().
Needs rolling out to other transaction types if acceptable.
2018-06-15 17:16:44 +01:00
catbref
698c4b6cc9 More repository work
Moved more repository-like methods from qora.* classes to repository.

Removed qora.block.BlockTransaction as it's pretty much internal to the HSQLDB repository.

Fixing qora.account.*

Fixing genesis-related classes: block, account, transaction...
2018-06-12 14:54:06 +01:00
catbref
37d9bcbb53 Repository work
Rolled BlockTransactionRepository into BlockRepository.

Added AccountRepository for general account info and account balances.

BlockTransformer now takes Block as param instead of BlockData as it needs Block's transactions.
2018-06-12 12:15:38 +01:00
catbref
3d78d5dad9 More refactoring - DOES NOT COMPILE
qora.* packages are business logic/handler/processing
data.* packages are "value objects" or are they "business objects"?

toBytes(), fromBytes() (which used to be called parse()) and toJSON() moved to transform.* packages

new issues:

Lost control of SQL Transactions. Previously, some class "knew" whether to call COMMIT or not.
e.g. simply saving a payment transaction would involve updating Transactions table first, then the PaymentTransactions table after (to satisfy foreign key constraints) then commit.
Processing a block would involve a new transaction, a savepoint, a rollback and then maybe a further commit or rollback.
Not sure how this is going to work with the repository, especially if business logic isn't supposed to be aware of such things.

Growing number of stupid try-catch blocks. Probably best to ditch TransformationException (was ParseException) and throw IllegalStateExceptions instead as they're "unchecked".

What happens if the repository fails to save() to the database? It can't throw SQLException any more as that has no meaning outside the repository. Ditto with delete().
2018-06-08 17:40:27 +01:00
catbref
5b78268915 Convertion to thread-local Connection
Much tidier code thanks to not having to pass Connection objects around
as params. Also no need for two forms of the same method, one with Connection
param, one without.

Also corrected SQL-Transaction-related methods in DB, e.g. commit, rollback, etc.
so they use the proper underlying JDBC methods.
2018-06-06 11:39:58 +01:00
catbref
3a6276c4a9 IssueAssetTransactions
Use HSQLDB "CREATE TYPE" instead of "CREATE DOMAIN" as collate clause is lost on HSQLDB shutdown in v2.4.0.

Restore GenesisAccount's public key back to 8-byte legacy value.

More work on block/transaction processing.

It's becoming apparent that way too many Connection objects are being passed around, and now with two forms of
methods (one with, one without) it's time to switch to something like thread-local Connections.

Maybe also switch to having data access objects.

So this commit is save work prior to that conversion.
2018-06-06 09:52:42 +01:00
catbref
948bc95644 More work on transactions/blocks
Added Apache commons-net as maven dependency for NTP support.

Added SAVEPOINT and ROLLBACK TO SAVEPOINT support to DB class.
Added exists() test to DB class.

Add MessageTransactions, with V1/V3 code in one class instead of very similar code
split across two classes. Update DB schema to add version.

More fleshing out of Assets class.

Fleshing out Block class with parse(), generating balance and signature-related methods.

More javadoc. More tests.
2018-06-04 11:45:40 +01:00
catbref
4ce499c444 More database work
No need for DB.executeUsingBytes as it was only a specific use-case for DB.checkedExecute.
Callers now refactored to use DB.checkedExecute instead.
Minor tidying up of BlockTransactions in light of above.

In the HSQLDB database, asset keys/IDs are now "asset_id" (previously: "asset").
Added initial Asset/Order/Trade classes.
Added CreateOrderTransaction class.
Renamed some asset-related fields back to old gen1 names, e.g. haveAmount -> amount, wantAmount -> price.

Added Accounts and AccountBalances to database.

Added get/set confirmed balance support to Account.
Added get/set last reference support to Account.

Added Block.toJSON() - untested at this time.

Fleshed out some Transaction sub-classes' process() and orphan() methods.
Fleshed out PaymentTransaction.isValid().
Added Transaction.delete() - untested.
2018-05-27 14:59:30 +01:00
catbref
63be6b7e90 Basic block and genesis transaction processing + some refactoring.
DB.rebuild() to shutdown and delete database, then rebuild it (schema only).

DB.callIdentity() to fetch value of IDENTITY column after an INSERT.

Added basic Asset class.

Added TODOs to Account.

BULK REFACTOR to rename "generation target" back to "generating balance" and
"generation signature" back to "generator signature" to ease compatibility with
old QORA for now. (Maybe change again in the future if we change from PoS).

Added support for Block's totalFees which is either loaded from DB
or recalculated as transactions are added to the block.

Also in Block:

* We can't assume generator's public key is the correct length
in case we encounter the GenesisAccount's special 8-byte public key. Fix applied to
Block's ResultSet-based constructor.

* Forgot to save "signature" column!

* Initial version of Block.process()

* Block constructor takes transactionsSignature too now

Added BlockChain startup/init/validation method to determine whether to (re)build blockchain.
Rebuilding blockchain involves rebuilding DB schema, processing GenesisBlock and adding QORA asset.

Added some initial GenesisTranaction.process() code: GenesisTransactions are saved but recipient's balance/reference not yet updated.

Fix incorrect placeholder bind value for "creation" timestamp in Transaction.save().

Moved incremental database schema updates out from "updates" unit test into DatabaseUpdates class.

All unit tests work at this point!
2018-05-25 11:48:47 +01:00
catbref
b90a486039 More work on Blocks, refactor to using public key in DB, etc.
Added brokenmd160.java as command-line support for producing broken MD160 digests.

Transactions, and sub-classes, now use/store public key instead of Qora address.
(Qora address can be derived from public key and they take up about the same space in DB).

Loads more JavaDoc for lovely mouseover help in Eclipse IDE.

Crypto.verify() and Crypto.sign() moved into PublicKeyAccount and PrivateKeyAccount
as appropriate.

Fleshed out Block, added BlockTransactions support.

Added TODO comments as Eclipse helpfully lists these for later implementation.

Made loading-from-DB-constructors protected/private and also throw NoDataFoundException
if unable to load from DB. Public methods can call respective constructors, catch the above
exception and return null if they like. Load-from-DB-constructors are to allow sub-classes
to load some data from sub-tables and super-class to load from another table.
(See PaymentTransaction/Transaction for example). Using public methods allows similar argument
lists but with different names,
e.g. DBObject.fromSignature(Connection, byte[]) and DBObject.fromReference(Connection, byte[])

Saving into DB maybe still a bit untidy. Looking for a way to close-couple column names with
place-holder bind Objects.
Less of:
connection.prepareStatement("INSERT INTO table (column) VALUES (?)")
DB.bindInsertPlaceholders(PreparedStatement, Object...);
More like:
DB.insertUpdate(String tableName, SomeMagicCloseCoupledPairs...)
called like:
DB.insertUpdate("Cats", {"name", "Tiddles"}, {"age", 3});
2018-05-17 17:39:55 +01:00
catbref
a2b5fa140b Initial stab at migrating to HSQLDB for Qora gen2
Most SQL tables defined but only payment transactions actually implemented.
Maven support added.

Some code imported from 'old' Qora:

RIPEMD160 renamed as BrokenMD160 and deprecated.
whispersystem's Ed25519 implementation (to be replaced with bouncycastle).
Basic Account/PublicKeyAccount/PrivateKeyAccount code.
Some utils like Base58 and Pair.

To use:

Use maven to fetch dependencies.
Build project.
Fire up an old-gen Qora node.
Run src/test/update.java as a JUnit test to build DB structure.
Run src/test/migrate.java as a JUnit test to migrate old Qora blocks to DB.

You should now be able to run src/test/load.java and src/test/save.java
as JUnit tests demonstrating loading/saving Transactions from/to database.

This commit done while halfway through adding Block support!
2018-05-16 11:46:44 +01:00