KNOX-3202: Oracle DB support for TokeStateService, Refactored JDBCUti…

[hanicz]

…ls into DataSourceFactory

KNOX-3202 - Add support for Oracle DB as a Token State backend

What changes were proposed in this pull request?

• Added com.oracle.database.jdbc.ojdbc11 dependency with provided scope.
• Refactored JDBCUtils into factory pattern so every class has its clear responsibilities.
• Introduced a new enum for database types.
• Created new sql files to separate derby, oracle and common DDL scripts. This removes the on-the-fly replace calls on a single DDL script.
• Added new unit tests for Oracle database type.
• Added Oracle DB support for RemoteConfigDatabase as well.

How was this patch tested?

mvn clear verify

Below manual tests:
I started up Knox with a specific database type, created a new token, queried that token on the token management UI and also verified in the DB.
Tested oracle, derby, mysql, postgres and mariadb locally with docker images

Oracle: gvenzl/oracle-free jdbc:oracle:thin:localhost:1521/FREEPDB1
MariaDB: mariadb:11 jdbc:mariadb://127.0.0.1:3306/testdb?user=testuser&password=testpass
MySQL: mysql:8.4
PostgreSQL: postgres:16

Oracle:

    <property>
        <name>gateway.service.tokenstate.impl</name>
        <value>org.apache.knox.gateway.services.token.impl.JDBCTokenStateService</value>
    </property>
    <property>
        <name>gateway.database.type</name>
        <value>oracle</value>
    </property>
    <property>
        <name>gateway.database.port</name>
        <value>1521</value>
    </property>
    <property>
        <name>gateway.database.host</name>
        <value>localhost</value>
    </property>
    <property>
        <name>gateway.database.name</name>
        <value>FREEPDB1</value>
    </property>
    
    OR
    
    <property>
        <name>gateway.database.connection.url</name>
        <value>jdbc:oracle:thin:localhost:1521/FREEPDB1</value>
    </property>

install/knox-3.0.0-SNAPSHOT/bin/knoxcli.sh generate-jwk --saveAlias knox.token.hash.key
install/knox-3.0.0-SNAPSHOT/bin/knoxcli.sh create-aliases --alias gateway_database_user --value SYSTEM --alias gateway_database_password --value test
install/knox-3.0.0-SNAPSHOT/bin/knoxcli.sh create-aliases --alias gateway_database_user --value appuser --alias gateway_database_password --value apppass

[smolnar82]

As discussed offline, please test/update the SQL files in RemoteConfigDatabase too.

[github-actions]

Test Results

7 tests   7 ✅  1s ⏱️
1 suites  0 💤
1 files    0 ❌

Results for commit 7a75d66.

♻️ This comment has been updated with latest results.

[smolnar82]

LGTM