60e562566e
Better order matching, especially in situations where inexact fractional representations (e.g. 1/12) or rounding issues might occur. Also better matching with indivisible assets. Essentially change ordering from have-amount & price to have-amount and want-return, leaving unit price to be calculated internally to a finer degree (in some cases to 48 decimal points). Corresponding unit tests to cover both legacy and new scenarios. Support for tests to switch between blockchain configs. "New" pricing schema is its own 'feature trigger' independent from general qorav2 switch. Safety checks added during trading process. HSQLDB schema changes (will probably need careful conflict resolution on merge). Still to do: API changes etc. |
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lib | ||
src | ||
.gitignore | ||
blockchain.json | ||
log4j2.properties | ||
osgi-console.sh | ||
pom.xml | ||
README.md |
Qora2
To use:
- Use maven to fetch dependencies.
- Build project.
- Build v1feeder.jar as a fatjar using src/v1feeder.java as the main class
- Fire up an old-gen Qora node.
- Use
v1feeder.jar
to migrate old Qora blocks to DB:
java -jar v1feeder.jar qora-v1-node-ip
You should now be able to run all the JUnit tests.
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 where Maven downloaded hsqldb,
typically ${HOME}/.m2/repository/org/hsqldb/hsqldb/2.4.0/hsqldb-2.4.0.jar
,
but for now lib/org/hsqldb/hsqldb/r5836/hsqldb-r5836.jar
${SQLTOOL_JAR}
contains pathname to where Maven downloaded sqltool,
typically ${HOME}/.m2/repository/org/hsqldb/sqltool/2.4.1/sqltool-2.4.1.jar
${SQLTOOL_RC}
contains pathname to a text file describing Qora2 database,
e.g. ${HOME}/.sqltool.rc
, with contents like:
urlid qora
url jdbc:hsqldb:file:db/qora
username SA
password
urlid qora-test
url jdbc:hsqldb:file:db/test
username SA
password
You could change the line url jdbc:hsqldb:file:db/test
to use a full pathname for easier use.
Another idea is to assign a shell alias in your .bashrc
like:
export HSQLDB_JAR=${HOME}/.m2/repository/org/hsqldb/hsqldb/2.4.0/hsqldb-2.4.0.jar
export SQLTOOL_JAR=${HOME}/.m2/repository/org/hsqldb/sqltool/2.4.1/sqltool-2.4.1.jar
alias sqltool='rlwrap java -cp ${HSQLDB_JAR}:${SQLTOOL_JAR} org.hsqldb.cmdline.SqlTool --rcFile=${SQLTOOL_RC}'
So you can simply type: sqltool qora-test
Don't forget to use SHUTDOWN;
before exiting sqltool so that database files are closed cleanly.