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catbref c597f11c37 Fix fetching asset-related transactions from DB where asset might not exist. Some asset-related transactions (CREATE_ASSET_ORDER and TRANSFER_ASSET) also try to fetch asset names at the same time. If one of these transactions, and a corresponding ISSUE_ASSET transaction, have been orphaned then it's possible that the asset no longer exists. Thus the SQL "JOIN" fails during transaction retrieval, causing an error. Changing the table-join to "LEFT OUTER JOIN" makes the asset name aspect optional. Repercussions might be nameless assets when fetching transaction info via API.		2019-08-16 08:19:12 +01:00
lib/org/ciyam/at	Bump HSQLDB from svn r5970 to release v2.5.0	2019-08-02 13:05:18 +01:00
src	Fix fetching asset-related transactions from DB where asset might not exist.	2019-08-16 08:19:12 +01:00
.gitignore	Added settings.json to gitignore	2019-08-02 14:07:12 +01:00
log4j2.properties	Fix up after epic git history rebuild due to LFS issue	2019-08-13 10:27:28 +01:00
pom.xml	Improved detection of inaccurate system clock & nagging.	2019-08-13 09:14:07 +01:00
README.md	Unit test fixes + initial CIYAM AT integration	2018-10-04 14:38:59 +01:00

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.