DATAKV-36

+ add initial cut of mapping package and HashMapper

spring-data-redis/pom.xml

@@ -115,6 +115,12 @@
       <version>1.3</version>
       <scope>test</scope>
     </dependency>
+
+    <dependency>
+      <groupId>commons-beanutils</groupId>
+      <artifactId>commons-beanutils-core</artifactId>
+      <version>1.8.3</version>
+    </dependency>
     
 		<dependency>
 			<groupId>junit</groupId>

spring-data-redis/src/main/java/org/springframework/data/keyvalue/redis/mapper/HashMapper.java

@@ -0,0 +1,30 @@
+/*
+ * Copyright 2011 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.keyvalue.redis.mapper;
+
+import java.util.Map;
+
+/**
+ * Core mapping contract between Java types and Redis hashes/maps.
+ * 
+ * @author Costin Leau
+ */
+public interface HashMapper<T> {
+
+	Map<?, ?> toHash(T object);
+
+	T fromHash(Map<?, ?> hash);
+}

spring-data-redis/src/main/java/org/springframework/data/keyvalue/redis/mapper/JacksonHashMapper.java

@@ -0,0 +1,50 @@
+/*
+ * Copyright 2011 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.keyvalue.redis.mapper;
+
+import java.util.Map;
+
+import org.codehaus.jackson.map.ObjectMapper;
+
+/**
+ * Mapper based on Jackson library.
+ * 
+ * @author Costin Leau
+ */
+public class JacksonHashMapper<T> implements HashMapper<T> {
+
+	private final Class<T> type;
+	private final ObjectMapper mapper;
+
+	public JacksonHashMapper(Class<T> type) {
+		this(type, new ObjectMapper());
+	}
+
+	public JacksonHashMapper(Class<T> type, ObjectMapper mapper) {
+		this.type = type;
+		this.mapper = mapper;
+	}
+
+	@Override
+	public T fromHash(Map<?, ?> hash) {
+		return mapper.convertValue(hash, type);
+	}
+
+	@Override
+	public Map<?, ?> toHash(T object) {
+		return mapper.convertValue(object, Map.class);
+	}
+}

spring-data-redis/src/test/java/org/springframework/data/keyvalue/redis/core/SortTest.java

@@ -0,0 +1,37 @@
+/*
+ * Copyright 2011 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.keyvalue.redis.core;
+
+
+import org.junit.After;
+import org.junit.Before;
+import org.springframework.data.keyvalue.redis.core.query.SortQueryBuilder;
+
+public class SortTest {
+
+	@Before
+	public void setUp() throws Exception {
+	}
+
+	@After
+	public void tearDown() throws Exception {
+	}
+
+	public void testBasicDSL() throws Exception {
+		SortQueryBuilder.sort("list").build();
+	}
+
+}

spring-data-redis/src/test/java/org/springframework/data/keyvalue/redis/mapping/AbstractHashMapperTest.java

@@ -0,0 +1,61 @@
+/*
+ * Copyright 2011 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.keyvalue.redis.mapping;
+
+import static org.junit.Assert.*;
+
+import java.util.Map;
+
+import org.junit.Test;
+import org.springframework.data.keyvalue.redis.Address;
+import org.springframework.data.keyvalue.redis.Person;
+import org.springframework.data.keyvalue.redis.mapper.HashMapper;
+
+/**
+ * @author Costin Leau
+ */
+public abstract class AbstractHashMapperTest {
+	protected abstract HashMapper mapperFor(Class t);
+
+	private void test(Object o) {
+		HashMapper<Object> mapper = mapperFor(o.getClass());
+		Map hash = mapper.toHash(o);
+		System.out.println("object hash " + hash.size() + " is " + hash);
+		assertEquals(o, mapper.fromHash(hash));
+	}
+
+	@Test(expected = Exception.class)
+	public void testBasicValues() throws Exception {
+		test("SomeStrangeString*&#@");
+		test(123);
+		test(Integer.MAX_VALUE);
+		test(Long.MAX_VALUE);
+		test(Double.MIN_VALUE);
+		test(Float.MIN_VALUE);
+		test(Boolean.FALSE);
+		test(Thread.State.BLOCKED);
+	}
+
+	@Test
+	public void testSimpleBean() throws Exception {
+		test(new Address("Broadway", 1));
+	}
+
+	@Test
+	public void testNestedBean() throws Exception {
+		test(new Person("George", "Enescu", 74, new Address("liveni", 19)));
+	}
+}

spring-data-redis/src/test/java/org/springframework/data/keyvalue/redis/mapping/JacksonHashMapperTest.java

@@ -0,0 +1,27 @@
+/*
+ * Copyright 2011 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.keyvalue.redis.mapping;
+
+import org.springframework.data.keyvalue.redis.mapper.HashMapper;
+import org.springframework.data.keyvalue.redis.mapper.JacksonHashMapper;
+
+public class JacksonHashMapperTest extends AbstractHashMapperTest {
+
+	@Override
+	protected HashMapper mapperFor(Class t) {
+		return new JacksonHashMapper(t);
+	}
+}