Reading tomcat server.xml in junit test case

Question

I am using java 7, and tomcat 7. I am writing few tests for my application in jUnit which uses tomcat/conf/server.xml for jndi. Here is the maven suggest folder structure.

src
|___test
    |___java
    |       |___Testcase.java
    |___resources
            |___conf
                   |___server.xml

My sample server.xml would look like this,

<Resource name="jdbc/junit_db"
        type="javax.sql.DataSource"
        factory="org.apache.tomcat.dbcp.dbcp.BasicDataSourceFactory"
        driverClassName="com.mysql.jdbc.Driver"
        url="jdbc:mysql://localhost:3306/junit_db?zeroDateTimeBehavior=round&amp;autoReconnect=true&amp;dumpQueriesOnException=true"
        username="root"
        password="password"
        maxIdle="0"
        minIdle="0"
        initialSize="1"
        maxWait="5000"
        maxActive="50"
        loginTimeout="1000"
        minEvictableIdleTimeMillis="2000"
        timeBetweenEvictionRunsMillis="5000"
        validationQuery="SELECT 1"
        testOnBorrow="true"
        testOnReturn="true"
        testWhileIdle="false"
        logAbandoned="true"
        removeAbandoned="true"
        poolPreparedStatements="true"
        maxOpenPreparedStatements="10000"
        accessToUnderlyingConnectionAllowed="false"
        defaultAutoCommit="false"
        defaultReadOnly="false"
        defaultTransactionIsolation="4"/>

<Resource name="jdbc/junit_hive_db" 
            type="javax.sql.DataSource" 
            factory="com.office.hive.HiveDataSourceFactory" 
            driverClassName="org.apache.hive.jdbc.HiveDriver" 
            url="jdbc:hive2://localhost:10000/default?zeroDateTimeBehavior=round" 
            username="" 
            password="" />

I want to load this server.xml into the IntialContext before running jUnit test cases. How to achieve this?

Answer 1

Followed this link, it has solution for loading jndi into initialcontext manually.

http://www.alexecollins.com/tomcat-context-junit-rule/

Answer 2

Give TomcatJNDI a try. When fed with Tomcat's configuration files it will deliver all JNDI based objects that are declared in these files as soon as they are looked up. The code to achieve this is for example

TomcatJNDI tomcatJNDI = new TomcatJNDI();
tomcatJNDI.processServerXml(serverXmlFile)
tomcatJNDI.processContextXml(contextXmlFile);
tomcatJNDI.start();

Then you can lookup the objects as you are used to:

DataSource ds = (DataSource) InitialContext.doLookup("java:comp/env/path/to/datasource")

More about TomcatJNDI can be found here.