gaspersic/java-design-patterns
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

Changing code to use interfaces instead of implementations.

Browse Source
This commit is contained in:
leogtzr 2017-01-21 15:47:54 -07:00
parent 6292690250
commit d6fc28e120
24 changed files with 346 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
caching/src/main/java/com/iluwatar/caching/LruCache.java
View File

@ -167,7 +167,7 @@ public class LruCache {
* Returns cache data in list form.
*/
public List<UserAccount> getCacheDataInListForm() {
ArrayList<UserAccount> listOfCacheData = new ArrayList<>();
List<UserAccount> listOfCacheData = new ArrayList<>();
Node temp = head;
while (temp != null) {
listOfCacheData.add(temp.userAccount);

3
factory-kit/src/main/java/com/iluwatar/factorykit/WeaponFactory.java
View File

@ -23,6 +23,7 @@
package com.iluwatar.factorykit;
import java.util.HashMap;
import java.util.Map;
import java.util.function.Consumer;
import java.util.function.Supplier;
@ -48,7 +49,7 @@ public interface WeaponFactory {
* @return factory with specified {@link Builder}s
*/
static WeaponFactory factory(Consumer<Builder> consumer) {
HashMap<WeaponType, Supplier<Weapon>> map = new HashMap<>();
Map<WeaponType, Supplier<Weapon>> map = new HashMap<>();
consumer.accept(map::put);
return name -> map.get(name).get();
}

3
hexagonal/src/main/java/com/iluwatar/hexagonal/banking/MongoBank.java
View File

@ -29,6 +29,7 @@ import com.mongodb.client.model.UpdateOptions;
import org.bson.Document;
import java.util.ArrayList;
import java.util.List;
/**
* Mongo based banking adapter
@ -110,7 +111,7 @@ public class MongoBank implements WireTransfers {
@Override
public int getFunds(String bankAccount) {
Document search = new Document("_id", bankAccount);
ArrayList<Document> results = accountsCollection.find(search).limit(1).into(new ArrayList<Document>());
List<Document> results = accountsCollection.find(search).limit(1).into(new ArrayList<Document>());
if (results.size() > 0) {
return results.get(0).getInteger("funds");
} else {

8
hexagonal/src/main/java/com/iluwatar/hexagonal/database/MongoTicketRepository.java
View File

@ -35,8 +35,10 @@ import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Optional;
import java.util.Set;
/**
* Mongo lottery ticket database
@ -142,7 +144,7 @@ public class MongoTicketRepository implements LotteryTicketRepository {
@Override
public Optional<LotteryTicket> findById(LotteryTicketId id) {
Document find = new Document("ticketId", id.getId());
ArrayList<Document> results = ticketsCollection.find(find).limit(1).into(new ArrayList<Document>());
List<Document> results = ticketsCollection.find(find).limit(1).into(new ArrayList<Document>());
if (results.size() > 0) {
LotteryTicket lotteryTicket = docToTicket(results.get(0));
return Optional.of(lotteryTicket);
@ -166,7 +168,7 @@ public class MongoTicketRepository implements LotteryTicketRepository {
@Override
public Map<LotteryTicketId, LotteryTicket> findAll() {
Map<LotteryTicketId, LotteryTicket> map = new HashMap<>();
ArrayList<Document> docs = ticketsCollection.find(new Document()).into(new ArrayList<Document>());
List<Document> docs = ticketsCollection.find(new Document()).into(new ArrayList<Document>());
for (Document doc: docs) {
LotteryTicket lotteryTicket = docToTicket(doc);
map.put(lotteryTicket.getId(), lotteryTicket);
@ -183,7 +185,7 @@ public class MongoTicketRepository implements LotteryTicketRepository {
PlayerDetails playerDetails = new PlayerDetails(doc.getString("email"), doc.getString("bank"),
doc.getString("phone"));
int[] numArray = Arrays.asList(doc.getString("numbers").split(",")).stream().mapToInt(Integer::parseInt).toArray();
HashSet<Integer> numbers = new HashSet<>();
Set<Integer> numbers = new HashSet<>();
for (int num: numArray) {
numbers.add(num);
}

2
layers/src/main/java/com/iluwatar/layers/CakeBakingServiceImpl.java
View File

@ -163,7 +163,7 @@ public class CakeBakingServiceImpl implements CakeBakingService {
CakeToppingInfo cakeToppingInfo =
new CakeToppingInfo(cake.getTopping().getId(), cake.getTopping().getName(), cake
.getTopping().getCalories());
ArrayList<CakeLayerInfo> cakeLayerInfos = new ArrayList<>();
List<CakeLayerInfo> cakeLayerInfos = new ArrayList<>();
for (CakeLayer layer : cake.getLayers()) {
cakeLayerInfos.add(new CakeLayerInfo(layer.getId(), layer.getName(), layer.getCalories()));
}

16
memory-dao-test/.springBeans Normal file
View File

@ -0,0 +1,16 @@
<?xml version="1.0" encoding="UTF-8"?>
<beansProjectDescription>
<version>1</version>
<pluginVersion><![CDATA[3.8.2.201610040608-RELEASE]]></pluginVersion>
<configSuffixes>
<configSuffix><![CDATA[xml]]></configSuffix>
</configSuffixes>
<enableImports><![CDATA[false]]></enableImports>
<configs>
<config>src/main/resources/beans.xml</config>
</configs>
<autoconfigs>
</autoconfigs>
<configSets>
</configSets>
</beansProjectDescription>

71
memory-dao-test/pom.xml Normal file
View File

@ -0,0 +1,71 @@
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.memory.dao</groupId>
<artifactId>memory-dao-test</artifactId>
<version>0.0.1</version>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.source>1.7</maven.compiler.source>
<maven.compiler.target>1.7</maven.compiler.target>
</properties>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
</dependency>
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-lang3</artifactId>
<version>3.0</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.25</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.h2database/h2 -->
<dependency>
<groupId>com.h2database</groupId>
<artifactId>h2</artifactId>
<version>1.4.193</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>4.2.5.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-beans</artifactId>
<version>4.2.5.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>4.2.5.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>4.2.5.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>4.2.5.RELEASE</version>
<scope>test</scope>
</dependency>
</dependencies>
</project>

22
memory-dao-test/src/main/java/com/memory/dao/App.java Normal file
View File

@ -0,0 +1,22 @@
package com.memory.dao;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import com.memory.dao.db.UserDAO;
import com.memory.dao.pojo.User;
public class App {
public static void main(String[] args) {
final ApplicationContext context = new ClassPathXmlApplicationContext(
"file:src/main/resources/beans.xml");
final UserDAO dao = (UserDAO)context.getBean("userDao");
for (final User user : dao.findAll()) {
System.out.println(user);
}
((ClassPathXmlApplicationContext)context).close();
}
}

9
memory-dao-test/src/main/java/com/memory/dao/AppConfig.java Normal file
View File

@ -0,0 +1,9 @@
package com.memory.dao;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
@Configuration
@ComponentScan(basePackages = {"com.memory.dao"})
public class AppConfig {
}

19
memory-dao-test/src/main/java/com/memory/dao/db/Queries.java Normal file
View File

@ -0,0 +1,19 @@
package com.memory.dao.db;
public enum Queries {
GET_USER("SELECT * FROM users WHERE name = :name"),
GET_ALL_USERS("SELECT * FROM users")
;
private final String query;
Queries(final String query) {
this.query = query;
}
public String get() {
return this.query;
}
}

11
memory-dao-test/src/main/java/com/memory/dao/db/UserDAO.java Normal file
View File

@ -0,0 +1,11 @@
package com.memory.dao.db;
import com.memory.dao.pojo.User;
import java.util.List;
public interface UserDAO {
User findByName(String name);
List<User> findAll();
}

61
memory-dao-test/src/main/java/com/memory/dao/db/UserDAOImpl.java Normal file
View File

@ -0,0 +1,61 @@
package com.memory.dao.db;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.List;
import java.util.Map;
import java.util.HashMap;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.jdbc.core.RowMapper;
import org.springframework.jdbc.core.namedparam.NamedParameterJdbcTemplate;
import org.springframework.stereotype.Repository;
import com.memory.dao.pojo.User;
@Repository
public class UserDAOImpl implements UserDAO {
private NamedParameterJdbcTemplate namedParameterJDBCTemplate;
@Autowired
public void setNamedParameterJDBCTemplate(final NamedParameterJdbcTemplate namedParameterJDBCTemplate) {
this.namedParameterJDBCTemplate = namedParameterJDBCTemplate;
}
@Override
public User findByName(final String name) {
final Map<String, Object> params = new HashMap<>();
params.put("name", name);
final User user = namedParameterJDBCTemplate.
queryForObject(Queries.GET_USER.get(), params, new UserMapper());
System.out.println("Found: " + user);
return user;
}
@Override
public List<User> findAll() {
Map<String, Object> params = new HashMap<String, Object>();
final List<User> result = namedParameterJDBCTemplate.query(Queries.GET_ALL_USERS.get(), params, new UserMapper());
return result;
}
private static final class UserMapper implements RowMapper<User> {
@Override
public User mapRow(final ResultSet rs, final int rowNum) throws SQLException {
final User user = new User();
user.setId(rs.getInt("id"));
user.setName(rs.getString("name"));
user.setEmail(rs.getString("email"));
return user;
}
}
}

38
memory-dao-test/src/main/java/com/memory/dao/pojo/User.java Normal file
View File

@ -0,0 +1,38 @@
package com.memory.dao.pojo;
public class User {
private int id;
private String name;
private String email;
public int getId() {
return id;
}
public void setId(final int id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(final String name) {
this.name = name;
}
public String getEmail() {
return email;
}
public void setEmail(final String email) {
this.email = email;
}
@Override
public String toString() {
return "User [id=" + id + ", name=" + name + ", email=" + email + "]";
}
}

20
memory-dao-test/src/main/resources/beans.xml Normal file
View File

@ -0,0 +1,20 @@
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd">
<import resource="db-h2-config.xml" />
<bean id="userDao" class="com.memory.dao.db.UserDAOImpl">
<property name="namedParameterJDBCTemplate" ref="jdbcTemplate" />
</bean>
<bean id="jdbcTemplate"
class="org.springframework.jdbc.core.namedparam.NamedParameterJdbcTemplate"> <!-- <property name="dataSource" ref="dataSource" /> -->
<!-- <constructor-arg ref="dbcpDataSource" /> -->
<constructor-arg ref="dataSource" />
</bean>
</beans>

18
memory-dao-test/src/main/resources/db-h2-config.xml Executable file
View File

@ -0,0 +1,18 @@
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:jdbc="http://www.springframework.org/schema/jdbc"
xsi:schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-4.1.xsd
http://www.springframework.org/schema/jdbc
http://www.springframework.org/schema/jdbc/spring-jdbc-4.1.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-4.1.xsd">
<jdbc:embedded-database id="dataSource" type="H2">
<jdbc:script location="classpath:db/sql/create-db.sql" />
<jdbc:script location="classpath:db/sql/insert-data.sql" />
</jdbc:embedded-database>
</beans>

7
memory-dao-test/src/main/resources/db/sql/create-db.sql Executable file
View File

@ -0,0 +1,7 @@
--DROP TABLE users IF EXISTS;
CREATE TABLE users (
id INTEGER PRIMARY KEY,
name VARCHAR(30),
email VARCHAR(50)
);

3
memory-dao-test/src/main/resources/db/sql/insert-data.sql Executable file
View File

@ -0,0 +1,3 @@
INSERT INTO users VALUES (1, 'mkyong', 'mkyong@gmail.com');
INSERT INTO users VALUES (2, 'alex', 'alex@yahoo.com');
INSERT INTO users VALUES (3, 'joel', 'joel@gmail.com');

30
memory-dao-test/src/test/java/com/memory/dao/AppTest.java Normal file
View File

@ -0,0 +1,30 @@
package com.memory.dao;
import static org.junit.Assert.assertTrue;
import org.junit.Before;
import org.junit.Test;
import org.springframework.beans.factory.annotation.Autowired;
import org.junit.runner.RunWith;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
import org.springframework.test.context.ContextConfiguration;
import com.memory.dao.db.UserDAO;
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration("/beans.xml")
public class AppTest {
@Autowired
private UserDAO dao;
@Before
public void setUp() {
System.out.println(String.format("Dao is: %s", dao));
}
@Test
public void testApp() {
assertTrue(true);
}
}

0
module/error.txt Normal file
View File

0
module/output.txt Normal file
View File

5
object-pool/src/main/java/com/iluwatar/object/pool/ObjectPool.java
View File

@ -23,6 +23,7 @@
package com.iluwatar.object.pool;
import java.util.HashSet;
import java.util.Set;
/**
*
@ -30,8 +31,8 @@ import java.util.HashSet;
*/
public abstract class ObjectPool<T> {
private HashSet<T> available = new HashSet<>();
private HashSet<T> inUse = new HashSet<>();
private Set<T> available = new HashSet<>();
private Set<T> inUse = new HashSet<>();
protected abstract T create();

3
semaphore/src/main/java/com/iluwatar/semaphore/FruitBowl.java
View File

@ -22,6 +22,7 @@
*/
package com.iluwatar.semaphore;
import java.util.List;
import java.util.ArrayList;
/**
@ -29,7 +30,7 @@ import java.util.ArrayList;
*/
public class FruitBowl {
private ArrayList<Fruit> fruit = new ArrayList<>();
private List<Fruit> fruit = new ArrayList<>();
/**
*

3
servant/src/main/java/com/iluwatar/servant/App.java
View File

@ -26,6 +26,7 @@ import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.util.ArrayList;
import java.util.List;
/**
@ -58,7 +59,7 @@ public class App {
King k = new King();
Queen q = new Queen();
ArrayList<Royalty> guests = new ArrayList<>();
List<Royalty> guests = new ArrayList<>();
guests.add(k);
guests.add(q);

5
servant/src/test/java/com/iluwatar/servant/ServantTest.java
View File

@ -25,6 +25,7 @@ package com.iluwatar.servant;
import org.junit.Test;
import java.util.ArrayList;
import java.util.List;
import static org.junit.Assert.*;
import static org.mockito.Mockito.mock;
@ -74,12 +75,12 @@ public class ServantTest {
final Royalty badMoodRoyalty = mock(Royalty.class);
when(badMoodRoyalty.getMood()).thenReturn(true);
final ArrayList<Royalty> goodCompany = new ArrayList<>();
final List<Royalty> goodCompany = new ArrayList<>();
goodCompany.add(goodMoodRoyalty);
goodCompany.add(goodMoodRoyalty);
goodCompany.add(goodMoodRoyalty);
final ArrayList<Royalty> badCompany = new ArrayList<>();
final List<Royalty> badCompany = new ArrayList<>();
goodCompany.add(goodMoodRoyalty);
goodCompany.add(goodMoodRoyalty);
goodCompany.add(badMoodRoyalty);