We're trying to setup MariaDB data source with HikariCP as conn. pool in Apache Karaf 4.1.2.
These are the features installed:
karaf@root()> feature:install jndi transaction pax-jdbc-pool-hikaricp pax-jdbc-mariadb jasypt-encryption
If we use only the (non-XA) DataSource service definition in blueprint.xml, everything works fine and we can see DataSource (and DataSourceFactory) instance created with no problem:
karaf@root()> service:list DataSource
[javax.sql.DataSource]
----------------------
datasource.name = MySQL
osgi.jndi.service.name = jdbc/testdb
osgi.service.blueprint.compname = dataSource
service.bundleid = 79
service.id = 147
service.scope = bundle
Provided by :
Test MariaDB Datasource Bundle (79)
But if we use XADataSource in the blueprint.xml, no DataSource is created (service:list DataSource returns empty)
These are the configuration files we use in the datasource bundle:
datasource.cfg:
db.server = DB_SERVER_IP:3306
db.database = testdb
db.username = root
db.password = ENC(sZwyfHzdvZSVoDDeU2/Vnw==)
blueprint.xml:
<?xml version="1.0" encoding="UTF-8"?>
<blueprint xmlns="http://www.osgi.org/xmlns/blueprint/v1.0.0"
xmlns:cm="http://aries.apache.org/blueprint/xmlns/blueprint-cm/v1.1.0"
xmlns:enc="http://karaf.apache.org/xmlns/jasypt/v1.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
default-activation="eager"
xsi:schemaLocation="
http://www.osgi.org/xmlns/blueprint/v1.0.0 http://www.osgi.org/xmlns/blueprint/v1.0.0/blueprint.xsd
http://aries.apache.org/blueprint/xmlns/blueprint-cm/v1.1.0 http://svn.apache.org/repos/asf/aries/trunk/blueprint/blueprint-cm/src/main/resources/org/apache/aries/blueprint/compendium/cm/blueprint-cm-1.1.0.xsd
">
<cm:property-placeholder persistent-id="datasource"
update-strategy="reload">
</cm:property-placeholder>
<enc:property-placeholder>
<enc:encryptor class="org.jasypt.encryption.pbe.StandardPBEStringEncryptor">
<property name="config">
<bean class="org.jasypt.encryption.pbe.config.EnvironmentStringPBEConfig">
<property name="algorithm" value="PBEWITHMD5ANDTRIPLEDES" />
<property name="password" value="DB_ENC_PWD" />
</bean>
</property>
</enc:encryptor>
</enc:property-placeholder>
<!-- This works just fine! -->
<service ref="dataSource" interface="javax.sql.DataSource">
<service-properties>
<entry key="osgi.jndi.service.name" value="jdbc/testdb" />
<entry key="datasource.name" value="MySQL" />
</service-properties>
</service>
<!-- But if we use this one, no DataSource is created... -->
<service ref="dataSource" interface="javax.sql.XADataSource">
<service-properties>
<entry key="osgi.jndi.service.name" value="jdbc/testdbxa" />
<entry key="datasource.name" value="MySQL" />
</service-properties>
</service>
<bean id="dataSource" class="org.mariadb.jdbc.MariaDbDataSource">
<property name="databaseName" value="${db.database}" />
<property name="url"
value="jdbc:mariadb://${db.server}/${db.database}?characterEncoding=UTF-8" />
<property name="user" value="${db.username}" />
<property name="password" value="${db.password}" />
</bean>
</blueprint>
I know org.mariadb.jdbc.MariaDbDataSource also implements XADataSource, so this configuration should have been working just fine.
What am I missing here? Are there any missing features that needed to be installed or is this configuration completely wrong?
Thanks in advance.
Finally, I figured it out thanks to C. Schneider's guidance.
The first mistake I made was to use HikariCP. According to this post, HikariCP does not support XA Connections yet. So I have to switch to DBCP2.
As it is clearly explained in the comments, using pax-jdbc-config was more understandable and clear way to define a DataSource. So I followed this documentation and, instead of a DataSource bundle (the blueprint way), just created this config file:
osgi.jdbc.driver.class = org.mariadb.jdbc.Driver
osgi.jdbc.driver.name=mariadb
pool=dbcp2
xa=true
databaseName=testdb
user=root
password=1
url=jdbc:mariadb://DB_SERVER_IP/testdb?characterEncoding=UTF-8
dataSourceName=testdb