4a1c3821db
* 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. |
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| .settings | ||
| src | ||
| .classpath | ||
| .gitignore | ||
| .project | ||
| NOTES.md | ||
| pom.xml | ||
| README.md | ||
Qora2
To use:
- Use maven to fetch dependencies.
- Build project.
- Fire up an old-gen Qora node.
- Run
src/test/update.javaas a JUnit test to build DB structure. - Run
src/test/migrate.javaas 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.
You can also examine the migrated database using HSQLDB's "sqltool".
It's a good idea to install "rlwrap" (ReadLine wrapper) too as sqltool doesn't support command history/editing!
Typical command line for sqltool would be:
rlwrap java -cp ${HSQLDB_JAR}:${SQLTOOL_JAR} org.hsqldb.cmdline.SqlTool --rcFile=${SQLTOOL_RC} qora
${HSQLDB_JAR} contains pathname to hsqldb-2.4.0.jar,
typically ${HOME}/.m2/repository/org/hsqldb/hsqldb/2.4.0/hsqldb-2.4.0.jar
${SQLTOOL_JAR} contains pathname to where you
downloaded sqltool-2.2.6.jar
${SQLTOOL_RC} contains pathname to a text file describing Qora2 database,
e.g. ${HOME}/.sqltool.rc, with contents like:
urlid qora
url jdbc:hsqldb:file:db/test
username SA
password
You could change the line url jdbc:hsqldb:file:db/test to use a full pathname for easier use.
Another idea is to assign a shell alias in your .bashrc like:
alias sqltool='rlwrap java -cp ${HSQLDB_JAR}:${SQLTOOL_JAR} org.hsqldb.cmdline.SqlTool --rcFile=${SQLTOOL_RC}'
So you can simply type: sqltool qora