我正在尝试使用guice-persist,但无法在简单的测试用例中使用它。这是一个一般的请求处理程序,正在从调度程序中调用:
public abstract class TransactionAwareRequestHandler<T> extends SyncRequestHandler<T> {
@Transactional // Guice should make sure I get a transaction here
public final Object handleRequest(T request) {
return handleRequestWithTx(request);
}
public abstract Object handleRequestWithTx(T request);
}
我的测试处理程序是:
public static class TestHandler extends TransactionAwareRequestHandler {
@Override
public Object handleRequestWithTx(Object request) {
SessionFactory sessionFactory = injector.getProvider(SessionFactory.class).get();
assertTrue(sessionFactory.getCurrentSession().getTransaction().isActive()); // <<<--- Fails here!
return null;
}
}
向导设置:
injector = Guice.createInjector(
new HibernatePersistModule()
);
这将为所有用@Transactional
注释的类和方法添加一个绑定拦截器。
测试用例:
@Test
public void shouldRunInTransaction() throws RequestHandlerException {
TestHandler handler = injector.getInstance(TestHandler.class);
// I'm not getting a proxy here! Why???
assertTrue("Expected proxy: " + handler.getClass(),
Proxy.isProxyClass(handler.getClass()));
handler.handleRequest(null);
}
问题:
为什么会这样?
我该如何调试它以查明原因呢?有什么方法可以将日志添加到类/方法匹配器中?
答案 0 :(得分:1)
这里有几个问题:
要调试Guice的操作,请将匹配器包装在进行日志记录的一个中:
import java.util.Objects;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.google.inject.matcher.AbstractMatcher;
import com.google.inject.matcher.Matcher;
public class MatcherLogger<T> extends AbstractMatcher<T> {
private final Matcher<T> delegate;
private final Logger log;
public MatcherLogger(Matcher<T> delegate) {
this(delegate, LoggerFactory.getLogger(MatcherLogger.class));
}
public MatcherLogger(Matcher<T> delegate, Logger log) {
this.delegate = Objects.requireNonNull(delegate);
this.log = Objects.requireNonNull(log);
}
@Override
public boolean matches(T t) {
boolean result = delegate.matches(t);
log.debug("matches {} for {}", result, t);
return result;
}
}