[BAEL-14317] - Moved code for DAO with Spring and Hibernate article

2019-05-11 14:36:36 +05:30
parent 7a40b201be
commit 7bb7f318f2
10 changed files with 391 additions and 4 deletions
@@ -0,0 +1,123 @@
+package org.baeldung.persistence.service;
+
+import static org.apache.commons.lang3.RandomStringUtils.randomAlphabetic;
+import static org.junit.Assert.assertEquals;
+
+import java.util.List;
+
+import org.baeldung.config.PersistenceConfig;
+import org.baeldung.persistence.model.Foo;
+import org.hibernate.Session;
+import org.hibernate.SessionFactory;
+import org.hibernate.exception.SQLGrammarException;
+import org.hibernate.query.NativeQuery;
+import org.hibernate.query.Query;
+import org.junit.After;
+import org.junit.Assume;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.test.context.ContextConfiguration;
+import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
+import org.springframework.test.context.support.AnnotationConfigContextLoader;
+
+@RunWith(SpringJUnit4ClassRunner.class)
+@ContextConfiguration(classes = { PersistenceConfig.class }, loader = AnnotationConfigContextLoader.class)
+public class FooStoredProceduresLiveTest {
+
+    private static final Logger LOGGER = LoggerFactory.getLogger(FooStoredProceduresLiveTest.class);
+
+    @Autowired
+    private SessionFactory sessionFactory;
+
+    @Autowired
+    private FooService fooService;
+
+    private Session session;
+
+    @Before
+    public final void before() {
+        session = sessionFactory.openSession();
+        Assume.assumeTrue(getAllFoosExists());
+        Assume.assumeTrue(getFoosByNameExists());
+    }
+
+    private boolean getFoosByNameExists() {
+        try {
+            @SuppressWarnings("unchecked")
+            NativeQuery<Foo> sqlQuery = session.createSQLQuery("CALL GetAllFoos()").addEntity(Foo.class);
+            sqlQuery.list();
+            return true;
+        } catch (SQLGrammarException e) {
+            LOGGER.error("WARNING : GetFoosByName() Procedure is may be missing ", e);
+            return false;
+        }
+    }
+
+    private boolean getAllFoosExists() {
+        try {
+            @SuppressWarnings("unchecked")
+            NativeQuery<Foo> sqlQuery = session.createSQLQuery("CALL GetAllFoos()").addEntity(Foo.class);
+            sqlQuery.list();
+            return true;
+        } catch (SQLGrammarException e) {
+            LOGGER.error("WARNING : GetAllFoos() Procedure is may be missing ", e);
+            return false;
+        }
+    }
+
+    @After
+    public final void after() {
+        session.close();
+    }
+
+    @Test
+    public final void getAllFoosUsingStoredProcedures() {
+
+        fooService.create(new Foo(randomAlphabetic(6)));
+
+        // Stored procedure getAllFoos using createSQLQuery
+        @SuppressWarnings("unchecked")
+        NativeQuery<Foo> sqlQuery = session.createSQLQuery("CALL GetAllFoos()").addEntity(Foo.class);
+        List<Foo> allFoos = sqlQuery.list();
+        for (Foo foo : allFoos) {
+            LOGGER.info("getAllFoos() SQL Query result : {}", foo.getName());
+        }
+        assertEquals(allFoos.size(), fooService.findAll().size());
+
+        // Stored procedure getAllFoos using a Named Query
+        @SuppressWarnings("unchecked")
+        Query<Foo> namedQuery = session.getNamedQuery("callGetAllFoos");
+        List<Foo> allFoos2 = namedQuery.list();
+        for (Foo foo : allFoos2) {
+            LOGGER.info("getAllFoos() NamedQuery result : {}", foo.getName());
+        }
+        assertEquals(allFoos2.size(), fooService.findAll().size());
+    }
+
+    @Test
+    public final void getFoosByNameUsingStoredProcedures() {
+
+        fooService.create(new Foo("NewFooName"));
+
+        // Stored procedure getFoosByName using createSQLQuery()
+        @SuppressWarnings("unchecked")
+        Query<Foo> sqlQuery = session.createSQLQuery("CALL GetFoosByName(:fooName)").addEntity(Foo.class).setParameter("fooName", "NewFooName");
+        List<Foo> allFoosByName = sqlQuery.list();
+        for (Foo foo : allFoosByName) {
+            LOGGER.info("getFoosByName() using SQL Query : found => {}", foo.toString());
+        }
+
+        // Stored procedure getFoosByName using getNamedQuery()
+        @SuppressWarnings("unchecked")
+        Query<Foo> namedQuery = session.getNamedQuery("callGetFoosByName").setParameter("fooName", "NewFooName");
+        List<Foo> allFoosByName2 = namedQuery.list();
+        for (Foo foo : allFoosByName2) {
+            LOGGER.info("getFoosByName() using Native Query : found => {}", foo.toString());
+        }
+
+    }
+}