DATACMNS-333 - Added Jackson 2 support to repository populators.

Added necessary infrastructure to use Jackson 2 with repository populators. Expose a jackson2-populator XML element in the namespace to setup a Jackson2 based repository populator.

src/test/java/org/springframework/data/repository/config/ResourceReaderRepositoryPopulatorBeanDefinitionParserIntegrationTests.java

@@ -25,6 +25,7 @@ import org.springframework.beans.factory.config.BeanDefinition;
 import org.springframework.beans.factory.support.DefaultListableBeanFactory;
 import org.springframework.beans.factory.xml.XmlBeanDefinitionReader;
 import org.springframework.core.io.ClassPathResource;
+import org.springframework.data.repository.init.Jackson2ResourceReader;
 import org.springframework.data.repository.init.JacksonResourceReader;
 import org.springframework.data.repository.init.ResourceReaderRepositoryPopulator;
 import org.springframework.data.repository.init.UnmarshallingResourceReader;
@@ -60,6 +61,28 @@ public class ResourceReaderRepositoryPopulatorBeanDefinitionParserIntegrationTes
 		assertIsListOfClasspathResourcesWithPath(resources, "org/springframework/data/repository/init/data.json");
 	}
 
+	/**
+	 * @see DATACMNS-333
+	 */
+	@Test
+	public void registersJackson2InitializerCorrectly() {
+
+		DefaultListableBeanFactory beanFactory = new DefaultListableBeanFactory();
+		XmlBeanDefinitionReader reader = new XmlBeanDefinitionReader(beanFactory);
+		reader.loadBeanDefinitions(new ClassPathResource("populators.xml", getClass()));
+
+		BeanDefinition definition = beanFactory.getBeanDefinition("jackson2-populator");
+		assertThat(definition, is(notNullValue()));
+
+		Object bean = beanFactory.getBean("jackson2-populator");
+		assertThat(bean, is(instanceOf(ResourceReaderRepositoryPopulator.class)));
+		Object resourceReader = ReflectionTestUtils.getField(bean, "reader");
+		assertThat(resourceReader, is(instanceOf(Jackson2ResourceReader.class)));
+
+		Object resources = ReflectionTestUtils.getField(bean, "resources");
+		assertIsListOfClasspathResourcesWithPath(resources, "org/springframework/data/repository/init/data.json");
+	}
+
 	/**
 	 * @see DATACMNS-58
 	 */

src/test/java/org/springframework/data/repository/init/Jackson2ResourceReaderIntegrationTests.java

@@ -0,0 +1,43 @@
+/*
+ * Copyright 2013 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.springframework.data.repository.init;
+
+import static org.hamcrest.Matchers.*;
+import static org.junit.Assert.*;
+
+import java.util.Collection;
+
+import org.junit.Test;
+import org.springframework.core.io.ClassPathResource;
+
+/**
+ * Integration tests for {@link JacksonResourceReader}.
+ * 
+ * @author Oliver Gierke
+ * @since 1.6
+ */
+public class Jackson2ResourceReaderIntegrationTests {
+
+	@Test
+	public void readsFileWithMultipleObjects() throws Exception {
+
+		ResourceReader reader = new Jackson2ResourceReader();
+		Object result = reader.readFrom(new ClassPathResource("data.json", getClass()), null);
+
+		assertThat(result, is(instanceOf(Collection.class)));
+		assertThat((Collection<?>) result, hasSize(1));
+	}
+}