I'm starting simple to get the hang of this, so I'd appreciate any
recommendations on how to set this up better and what I'm doing wrong.
I have a TestModule that binds a provider:
protected void configure() {
bind(SqlSessionFactory.class).toProvider(SqlSessionFactoryProvider.class);
bind(EmployeeDao.class).to(EmployeeDaoIbatis.class);
bind(EmployeeService.class).to(EmployeeServiceImpl.class);
}
The Provider class above, I only want instantiated ONCE, whether in the
application or during tests. It has to read in resource files etc and is
somewhat expensive to run.
I'm using MyCila 2.1 plugin with JUnit4 and have it set up like:
@GuiceContext(TestModule.class)
public abstract class BaseTest extends MycilaJunit4Test {
@Test
public void doNothing() {
//just to avoid warnings
}
}
I don't mind that the TestModule ends up instantiated on every Test class
run (although does it have to?), but how do I set it up so that my Provider
isn't run repeatedly during the tests?
As a side note, is the below the kind of thing that should be done in a
provider (seems cleaner here than in some static block)? (Defining as a
Singleton since only want one instance.)
@Singleton
public class SqlSessionFactoryProvider implements
Provider<SqlSessionFactory> {
private static final Log log =
LogFactory.getLog(SqlSessionFactoryProvider.class);
private static final String resource = "ibatis-config.xml";
private SqlSessionFactory sqlSessionFactory;
public SqlSessionFactoryProvider() {
System.out.println("!!!!!! Creating SqlSessionFactory from
resource");
Reader reader;
try {
reader = Resources.getResourceAsReader(resource);
Properties props =
Resources.getResourceAsProperties("application.properties");
String environment = props.getProperty("environment");
sqlSessionFactory = new SqlSessionFactoryBuilder().build(reader,
environment);
//run some db scripts
GroovySqlPersistence.initialize();
} catch (IOException ex) {
throw new RuntimeException("Could not find the resource:
"+resource, ex);
}
}
public SqlSessionFactory get() {
return sqlSessionFactory;
}
}
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