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Merge branch 'master' into stream-foreach-ifelse-logic

This commit is contained in:
RoscoeLotriet 2018-09-24 10:29:14 +02:00
parent c1fce0bcd2 738d65b9be
commit 348edfb1a9
25 changed files with 761 additions and 24 deletions
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8
core-java-collections/src/main/java/com/baeldung/performance/Employee.java
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@ -44,4 +44,12 @@ public class Employee {
result = 31 * result + name.hashCode();
return result;
}
@Override
public String toString() {
return "Employee{" +
"id=" + id +
", name='" + name + '\'' +
'}';
}
}

60
core-java-collections/src/main/java/com/baeldung/sort/Employee.java Normal file
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@ -0,0 +1,60 @@
package com.baeldung.sort;
public class Employee implements Comparable<Employee> {
private Long id;
private String name;
public Employee(Long id, String name) {
this.name = name;
this.id = id;
}
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
Employee employee = (Employee) o;
if (!id.equals(employee.id)) return false;
return name.equals(employee.name);
}
@Override
public int hashCode() {
int result = id.hashCode();
result = 31 * result + name.hashCode();
return result;
}
@Override
public String toString() {
return "Employee{" +
"id=" + id +
", name='" + name + '\'' +
'}';
}
@Override
public int compareTo(Employee employee) {
return (int)(this.id - employee.getId());
}
}

104
core-java-collections/src/main/java/com/baeldung/sort/SortHashMap.java Normal file
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@ -0,0 +1,104 @@
package com.baeldung.sort;
import com.google.common.base.Functions;
import com.google.common.collect.ImmutableSortedMap;
import com.google.common.collect.Lists;
import com.google.common.collect.Ordering;
import java.util.*;
import java.util.stream.Collectors;
public class SortHashMap {
private static Map<String, Employee> map = new HashMap<>();
public static void main(String[] args) {
initialize();
treeMapSortByKey();
arrayListSortByValue();
arrayListSortByKey();
sortStream();
sortGuava();
addDuplicates();
treeSetByKey();
treeSetByValue();
}
private static void sortGuava() {
final Ordering naturalOrdering =
Ordering.natural().onResultOf(Functions.forMap(map, null));
System.out.println(ImmutableSortedMap.copyOf(map, naturalOrdering));
}
private static void sortStream() {
map.entrySet().stream()
.sorted(Map.Entry.<String, Employee>comparingByKey().reversed())
.forEach(System.out::println);
Map<String, Employee> result = map.entrySet().stream()
.sorted(Map.Entry.comparingByValue())
.collect(Collectors.toMap(Map.Entry::getKey, Map.Entry::getValue,
(oldValue, newValue) -> oldValue, LinkedHashMap::new));
result.entrySet().forEach(System.out::println);
}
private static void treeSetByValue() {
SortedSet<Employee> values = new TreeSet<>(map.values());
System.out.println(values);
}
private static void treeSetByKey() {
SortedSet<String> keysSet = new TreeSet<>(map.keySet());
System.out.println(keysSet);
}
private static void treeMapSortByKey() {
TreeMap<String, Employee> sorted = new TreeMap<>(map);
sorted.putAll(map);
sorted.entrySet().forEach(System.out::println);
}
private static void arrayListSortByValue() {
List<Employee> employeeById = new ArrayList<>(map.values());
Collections.sort(employeeById);
System.out.println(employeeById);
}
private static void arrayListSortByKey() {
List<String> employeeByKey = new ArrayList<>(map.keySet());
Collections.sort(employeeByKey);
System.out.println(employeeByKey);
}
private static void initialize() {
Employee employee1 = new Employee(1L, "Mher");
map.put(employee1.getName(), employee1);
Employee employee2 = new Employee(22L, "Annie");
map.put(employee2.getName(), employee2);
Employee employee3 = new Employee(8L, "John");
map.put(employee3.getName(), employee3);
Employee employee4 = new Employee(2L, "George");
map.put(employee4.getName(), employee4);
}
private static void addDuplicates() {
Employee employee5 = new Employee(1L, "Mher");
map.put(employee5.getName(), employee5);
Employee employee6 = new Employee(22L, "Annie");
map.put(employee6.getName(), employee6);
}
}

25
libraries-security/pom.xml
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@ -8,12 +8,30 @@
<parent>
<groupId>com.baeldung</groupId>
<artifactId>parent-modules</artifactId>
<version>1.0.0-SNAPSHOT</version>
<artifactId>parent-boot-1</artifactId>
<version>0.0.1-SNAPSHOT</version>
<relativePath>../parent-boot-1</relativePath>
</parent>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.security.oauth</groupId>
<artifactId>spring-security-oauth2</artifactId>
<version>2.3.3.RELEASE</version>
</dependency>
<dependency>
<groupId>com.github.scribejava</groupId>
<artifactId>scribejava-apis</artifactId>
<version>${scribejava.version}</version>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
@ -25,6 +43,9 @@
<properties>
<junit.version>4.12</junit.version>
<spring-boot-maven-plugin.version>2.0.4.RELEASE</spring-boot-maven-plugin.version>
<scribejava.version>5.6.0</scribejava.version>
</properties>
</project>

15
libraries-security/src/main/java/com/baeldung/scribejava/ScribejavaApplication.java Normal file
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@ -0,0 +1,15 @@
package com.baeldung.scribejava;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class ScribejavaApplication {
public static void main(String[] args) {
SpringApplication.run(ScribejavaApplication.class, args);
}
}

27
libraries-security/src/main/java/com/baeldung/scribejava/api/MyApi.java Normal file
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@ -0,0 +1,27 @@
package com.baeldung.scribejava.api;
import com.github.scribejava.core.builder.api.DefaultApi20;
public class MyApi extends DefaultApi20 {
private MyApi() {
}
private static class InstanceHolder {
private static final MyApi INSTANCE = new MyApi();
}
public static MyApi instance() {
return InstanceHolder.INSTANCE;
}
@Override
public String getAccessTokenEndpoint() {
return "http://localhost:8080/oauth/token";
}
@Override
protected String getAuthorizationBaseUrl() {
return null;
}
}

49
libraries-security/src/main/java/com/baeldung/scribejava/controller/GoogleController.java Normal file
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@ -0,0 +1,49 @@
package com.baeldung.scribejava.controller;
import com.baeldung.scribejava.service.GoogleService;
import com.github.scribejava.core.model.OAuth2AccessToken;
import com.github.scribejava.core.model.OAuthRequest;
import com.github.scribejava.core.model.Response;
import com.github.scribejava.core.model.Verb;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;
import javax.servlet.http.HttpServletResponse;
@RestController
public class GoogleController {
@Autowired
private GoogleService service;
@GetMapping(value ="/me/google")
public void me(HttpServletResponse response){
String auth = service.getService().getAuthorizationUrl();
response.setHeader("Location", auth);
response.setStatus(302);
}
@GetMapping(value = "/auth/google")
public String google(@RequestParam String code, HttpServletResponse servletResponse){
try {
OAuth2AccessToken token = service.getService().getAccessToken(code);
OAuthRequest request = new OAuthRequest(Verb.GET, "https://www.googleapis.com/oauth2/v1/userinfo?alt=json");
service.getService().signRequest(token, request);
Response response = service.getService().execute(request);
return response.getBody();
}catch (Exception e){
servletResponse.setStatus(HttpServletResponse.SC_BAD_REQUEST);
}
return null;
}
}

57
libraries-security/src/main/java/com/baeldung/scribejava/controller/TwitterController.java Normal file
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@ -0,0 +1,57 @@
package com.baeldung.scribejava.controller;
import com.baeldung.scribejava.service.TwitterService;
import com.github.scribejava.core.model.*;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.util.Scanner;
import java.util.concurrent.ExecutionException;
@RestController
public class TwitterController {
@Autowired
private TwitterService service;
@GetMapping(value ="/me/twitter")
public String me(HttpServletResponse servletResponse){
try {
OAuth1RequestToken requestToken = service.getService().getRequestToken();
String auth = service.getService().getAuthorizationUrl(requestToken);
Runtime runtime = Runtime.getRuntime();
try {
runtime.exec("rundll32 url.dll,FileProtocolHandler " + auth);
} catch (IOException e) {
servletResponse.setStatus(HttpServletResponse.SC_BAD_REQUEST);
return null;
}
System.out.println("Insert twitter code:");
Scanner in = new Scanner(System.in);
String oauthverifier = in.nextLine();
final OAuth1AccessToken accessToken = service.getService().getAccessToken(requestToken,oauthverifier);
OAuthRequest request = new OAuthRequest(Verb.GET, "https://api.twitter.com/1.1/account/verify_credentials.json");
service.getService().signRequest(accessToken, request);
Response response = service.getService().execute(request);
return response.getBody();
} catch (IOException | InterruptedException | ExecutionException e) {
servletResponse.setStatus(HttpServletResponse.SC_BAD_REQUEST);
}
return null;
}
}

46
libraries-security/src/main/java/com/baeldung/scribejava/controller/UserController.java Normal file
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@ -0,0 +1,46 @@
package com.baeldung.scribejava.controller;
import com.baeldung.scribejava.service.MyService;
import com.github.scribejava.core.model.OAuth2AccessToken;
import com.github.scribejava.core.model.OAuthRequest;
import com.github.scribejava.core.model.Response;
import com.github.scribejava.core.model.Verb;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;
import javax.servlet.http.HttpServletResponse;
import java.security.Principal;
@RestController(value = "/user")
public class UserController {
@Autowired
private MyService service;
@GetMapping("/me/myapi")
public String me(@RequestParam String username, @RequestParam String password, HttpServletResponse responsehttp) {
try {
OAuth2AccessToken token = service.getService().getAccessTokenPasswordGrant(username, password);
OAuthRequest request = new OAuthRequest(Verb.GET, "http://localhost:8080/me");
service.getService().signRequest(token, request);
Response response = service.getService().execute(request);
return response.getBody();
} catch (Exception e) {
responsehttp.setStatus(HttpServletResponse.SC_BAD_REQUEST);
}
return null;
}
@GetMapping("/me")
public Principal user(Principal principal) {
return principal;
}
}

45
libraries-security/src/main/java/com/baeldung/scribejava/oauth/AuthServiceConfig.java Normal file
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@ -0,0 +1,45 @@
package com.baeldung.scribejava.oauth;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.HttpMethod;
import org.springframework.security.authentication.AuthenticationManager;
import org.springframework.security.oauth2.config.annotation.configurers.ClientDetailsServiceConfigurer;
import org.springframework.security.oauth2.config.annotation.web.configuration.AuthorizationServerConfigurerAdapter;
import org.springframework.security.oauth2.config.annotation.web.configuration.EnableAuthorizationServer;
import org.springframework.security.oauth2.config.annotation.web.configurers.AuthorizationServerEndpointsConfigurer;
import org.springframework.security.oauth2.config.annotation.web.configurers.AuthorizationServerSecurityConfigurer;
@Configuration
@EnableAuthorizationServer
public class AuthServiceConfig extends AuthorizationServerConfigurerAdapter {
@Autowired
@Qualifier("authenticationManagerBean")
private AuthenticationManager authenticationManager;
@Override
public void configure(AuthorizationServerSecurityConfigurer oauthServer) throws Exception {
oauthServer.tokenKeyAccess("permitAll()")
.checkTokenAccess("isAuthenticated()");
}
@Override
public void configure(ClientDetailsServiceConfigurer clients) throws Exception {
clients.inMemory()
.withClient("baeldung_api_key")
.secret("baeldung_api_secret")
.authorizedGrantTypes("password","refresh_token")
.scopes("read","write").autoApprove(true);
}
@Override
public void configure(AuthorizationServerEndpointsConfigurer endpoints) throws Exception {
endpoints
.authenticationManager(authenticationManager)
.allowedTokenEndpointRequestMethods(HttpMethod.GET, HttpMethod.POST);
}
}

53
libraries-security/src/main/java/com/baeldung/scribejava/oauth/WebSecurityConfig.java Normal file
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@ -0,0 +1,53 @@
package com.baeldung.scribejava.oauth;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.security.authentication.AuthenticationManager;
import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
import org.springframework.security.oauth2.config.annotation.web.configuration.EnableResourceServer;
import org.springframework.security.oauth2.config.annotation.web.configuration.ResourceServerConfigurerAdapter;
@Configuration
@EnableResourceServer
public class WebSecurityConfig extends WebSecurityConfigurerAdapter {
@Override
protected void configure(HttpSecurity http) throws Exception {
http
.headers().frameOptions().disable()
.and()
.csrf().disable();
}
@Override
protected void configure(AuthenticationManagerBuilder auth) throws Exception {
auth.inMemoryAuthentication()
.withUser("baeldung")
.password("scribejava")
.roles("USER");
}
@Override
@Bean
public AuthenticationManager authenticationManagerBean() throws Exception {
return super.authenticationManagerBean();
}
@EnableResourceServer
@Configuration
public class ResourceServerConfig extends ResourceServerConfigurerAdapter {
@Override
public void configure(HttpSecurity http) throws Exception {
http
.authorizeRequests()
.antMatchers("/user/me").authenticated()
.and()
.csrf().disable();
}
}
}

31
libraries-security/src/main/java/com/baeldung/scribejava/service/GoogleService.java Normal file
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@ -0,0 +1,31 @@
package com.baeldung.scribejava.service;
import com.github.scribejava.apis.GoogleApi20;
import com.github.scribejava.core.builder.ServiceBuilder;
import com.github.scribejava.core.oauth.OAuth20Service;
import org.springframework.stereotype.Component;
import javax.annotation.PostConstruct;
@Component
public class GoogleService {
private OAuth20Service service;
private final String API_KEY = "api_key";
private final String API_SECRET = "api_secret";
private final String SCOPE = "https://www.googleapis.com/auth/userinfo.email";
private final String CALLBACK = "http://localhost:8080/auth/google";
@PostConstruct
private void init(){
this.service = new ServiceBuilder(API_KEY)
.apiSecret(API_SECRET)
.scope(SCOPE)
.callback(CALLBACK)
.build(GoogleApi20.instance());
}
public OAuth20Service getService() {
return service;
}
}

29
libraries-security/src/main/java/com/baeldung/scribejava/service/MyService.java Normal file
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@ -0,0 +1,29 @@
package com.baeldung.scribejava.service;
import com.baeldung.scribejava.api.MyApi;
import com.github.scribejava.core.builder.ServiceBuilder;
import com.github.scribejava.core.oauth.OAuth20Service;
import org.springframework.stereotype.Component;
import javax.annotation.PostConstruct;
@Component
public class MyService {
private OAuth20Service service;
private final String API_KEY = "baeldung_api_key";
private final String API_SECRET = "baeldung_api_secret";
@PostConstruct
private void init(){
this.service = new ServiceBuilder(API_KEY)
.apiSecret(API_SECRET)
.scope("read write")
.build(MyApi.instance());
}
public OAuth20Service getService() {
return service;
}
}

29
libraries-security/src/main/java/com/baeldung/scribejava/service/TwitterService.java Normal file
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@ -0,0 +1,29 @@
package com.baeldung.scribejava.service;
import com.github.scribejava.apis.TwitterApi;
import com.github.scribejava.core.builder.ServiceBuilder;
import com.github.scribejava.core.oauth.OAuth10aService;
import org.springframework.stereotype.Component;
import javax.annotation.PostConstruct;
@Component
public class TwitterService {
private final String API_KEY = "api_key";
private final String API_SECRET = "api_secret";
private OAuth10aService service;
@PostConstruct
private void init(){
this.service = new ServiceBuilder(API_KEY)
.apiSecret(API_SECRET)
.build(TwitterApi.instance());
}
public OAuth10aService getService(){
return service;
}
}

1
libraries-security/src/main/resources/application.properties Normal file
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@ -0,0 +1 @@
security.oauth2.resource.filter-order = 3

17
libraries-security/src/test/java/com/baeldung/scribejava/ScribejavaUnitTest.java Normal file
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@ -0,0 +1,17 @@
package com.baeldung.scribejava;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.context.junit4.SpringRunner;
@RunWith(SpringRunner.class)
@SpringBootTest
public class ScribejavaUnitTest {
@Test
public void contextLoad(){
}
}

56
libraries/src/main/java/com/baeldung/kafka/TransactionalMessageProducer.java Normal file
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@ -0,0 +1,56 @@
package com.baeldung.kafka;
import org.apache.kafka.clients.producer.KafkaProducer;
import org.apache.kafka.clients.producer.ProducerRecord;
import org.apache.kafka.common.KafkaException;
import java.util.Properties;
import java.util.stream.Stream;
import static org.apache.kafka.clients.consumer.ConsumerConfig.BOOTSTRAP_SERVERS_CONFIG;
import static org.apache.kafka.clients.producer.ProducerConfig.ENABLE_IDEMPOTENCE_CONFIG;
import static org.apache.kafka.clients.producer.ProducerConfig.KEY_SERIALIZER_CLASS_CONFIG;
import static org.apache.kafka.clients.producer.ProducerConfig.TRANSACTIONAL_ID_CONFIG;
import static org.apache.kafka.clients.producer.ProducerConfig.VALUE_SERIALIZER_CLASS_CONFIG;
public class TransactionalMessageProducer {
private static final String DATA_MESSAGE_1 = "Put any space separated data here for count";
private static final String DATA_MESSAGE_2 = "Output will contain count of every word in the message";
public static void main(String[] args) {
KafkaProducer<String, String> producer = createKafkaProducer();
producer.initTransactions();
try{
producer.beginTransaction();
Stream.of(DATA_MESSAGE_1, DATA_MESSAGE_2).forEach(s -> producer.send(
new ProducerRecord<String, String>("input", null, s)));
producer.commitTransaction();
}catch (KafkaException e){
producer.abortTransaction();
}
}
private static KafkaProducer<String, String> createKafkaProducer() {
Properties props = new Properties();
props.put(BOOTSTRAP_SERVERS_CONFIG, "localhost:9092");
props.put(ENABLE_IDEMPOTENCE_CONFIG, "true");
props.put(TRANSACTIONAL_ID_CONFIG, "prod-0");
props.put(KEY_SERIALIZER_CLASS_CONFIG, "org.apache.kafka.common.serialization.StringSerializer");
props.put(VALUE_SERIALIZER_CLASS_CONFIG, "org.apache.kafka.common.serialization.StringSerializer");
return new KafkaProducer(props);
}
}

39
libraries/src/main/java/com/baeldung/kafka/TransactionalApp.java → libraries/src/main/java/com/baeldung/kafka/TransactionalWordCount.java
View File

@ -14,6 +14,8 @@ import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Properties;
import java.util.stream.Collectors;
import java.util.stream.Stream;
import static java.time.Duration.ofSeconds;
import static java.util.Collections.singleton;
@ -21,16 +23,16 @@ import static org.apache.kafka.clients.consumer.ConsumerConfig.*;
import static org.apache.kafka.clients.consumer.ConsumerConfig.BOOTSTRAP_SERVERS_CONFIG;
import static org.apache.kafka.clients.producer.ProducerConfig.*;
public class TransactionalApp {
public class TransactionalWordCount {
private static final String CONSUMER_GROUP_ID = "test";
private static final String CONSUMER_GROUP_ID = "my-group-id";
private static final String OUTPUT_TOPIC = "output";
private static final String INPUT_TOPIC = "input";
public static void main(String[] args) {
KafkaConsumer<String, String> consumer = initConsumer();
KafkaProducer<String, String> producer = initProducer();
KafkaConsumer<String, String> consumer = createKafkaConsumer();
KafkaProducer<String, String> producer = createKafkaProducer();
producer.initTransactions();
@ -38,12 +40,17 @@ public class TransactionalApp {
while (true) {
ConsumerRecords<String, String> records = consumer.poll(ofSeconds(20));
ConsumerRecords<String, String> records = consumer.poll(ofSeconds(60));
Map<String, Integer> wordCountMap = records.records(new TopicPartition(INPUT_TOPIC, 0))
.stream()
.flatMap(record -> Stream.of(record.value().split(" ")))
.map(word -> Tuple.of(word, 1))
.collect(Collectors.toMap(tuple -> tuple.getKey(), t1 -> t1.getValue(), (v1, v2) -> v1 + v2));
producer.beginTransaction();
for (ConsumerRecord record : records)
producer.send(new ProducerRecord(OUTPUT_TOPIC, record));
wordCountMap.forEach((key, value) -> producer.send(new ProducerRecord<String, String>(OUTPUT_TOPIC, key, value.toString())));
Map<TopicPartition, OffsetAndMetadata> offsetsToCommit = new HashMap<>();
@ -51,7 +58,7 @@ public class TransactionalApp {
List<ConsumerRecord<String, String>> partitionedRecords = records.records(partition);
long offset = partitionedRecords.get(partitionedRecords.size() - 1).offset();
offsetsToCommit.put(partition, new OffsetAndMetadata(offset));
offsetsToCommit.put(partition, new OffsetAndMetadata(offset + 1));
}
producer.sendOffsetsToTransaction(offsetsToCommit, CONSUMER_GROUP_ID);
@ -68,11 +75,12 @@ public class TransactionalApp {
}
private static KafkaConsumer<String, String> initConsumer() {
private static KafkaConsumer<String, String> createKafkaConsumer() {
Properties props = new Properties();
props.put(BOOTSTRAP_SERVERS_CONFIG, "localhost:9092");
props.put(GROUP_ID_CONFIG, CONSUMER_GROUP_ID);
props.put(ENABLE_AUTO_COMMIT_CONFIG, "false");
props.put(ISOLATION_LEVEL_CONFIG, "read_committed");
props.put(KEY_DESERIALIZER_CLASS_CONFIG, "org.apache.kafka.common.serialization.StringDeserializer");
props.put(VALUE_DESERIALIZER_CLASS_CONFIG, "org.apache.kafka.common.serialization.StringDeserializer");
@ -81,19 +89,14 @@ public class TransactionalApp {
return consumer;
}
private static KafkaProducer<String, String> initProducer() {
private static KafkaProducer<String, String> createKafkaProducer() {
Properties props = new Properties();
props.put(ProducerConfig.BOOTSTRAP_SERVERS_CONFIG, "localhost:9092");
props.put(ACKS_CONFIG, "all");
props.put(RETRIES_CONFIG, 3);
props.put(BATCH_SIZE_CONFIG, 16384);
props.put(LINGER_MS_CONFIG, 1);
props.put(BUFFER_MEMORY_CONFIG, 33554432);
props.put(BOOTSTRAP_SERVERS_CONFIG, "localhost:9092");
props.put(ENABLE_IDEMPOTENCE_CONFIG, "true");
props.put(TRANSACTIONAL_ID_CONFIG, "prod-1");
props.put(ProducerConfig.KEY_SERIALIZER_CLASS_CONFIG, "org.apache.kafka.common.serialization.StringSerializer");
props.put(ProducerConfig.VALUE_SERIALIZER_CLASS_CONFIG, "org.apache.kafka.common.serialization.StringSerializer");
props.put(KEY_SERIALIZER_CLASS_CONFIG, "org.apache.kafka.common.serialization.StringSerializer");
props.put(VALUE_SERIALIZER_CLASS_CONFIG, "org.apache.kafka.common.serialization.StringSerializer");
return new KafkaProducer(props);

24
libraries/src/main/java/com/baeldung/kafka/Tuple.java Normal file
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@ -0,0 +1,24 @@
package com.baeldung.kafka;
public class Tuple {
private String key;
private Integer value;
private Tuple(String key, Integer value) {
this.key = key;
this.value = value;
}
public static Tuple of(String key, Integer value){
return new Tuple(key,value);
}
public String getKey() {
return key;
}
public Integer getValue() {
return value;
}
}

6
spring-boot-mvc/src/main/java/com/baeldung/springbootmvc/jsfapplication/model/TodoDao.java
View File

@ -14,7 +14,7 @@ import org.springframework.stereotype.Component;
public class TodoDao implements Dao<Todo> {
private List<Todo> todoList = new ArrayList<>();
@Override
public Optional<Todo> get(int id) {
return Optional.ofNullable(todoList.get(id));
@ -22,9 +22,9 @@ public class TodoDao implements Dao<Todo> {
@Override
public Collection<Todo> getAll() {
return Collections.unmodifiableCollection(todoList.stream()
return todoList.stream()
.filter(Objects::nonNull)
.collect(Collectors.toList()));
.collect(Collectors.collectingAndThen(Collectors.toList(), Collections::unmodifiableList));
}
@Override

16
spring-core/src/main/java/com/baeldung/definition/Config.java Normal file
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@ -0,0 +1,16 @@
package com.baeldung.definition;
import com.baeldung.definition.domain.Address;
import com.baeldung.definition.domain.Company;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
@Configuration
@ComponentScan(basePackageClasses = Company.class)
public class Config {
@Bean
public Address getAddress() {
return new Address("High Street", 1000);
}
}

14
spring-core/src/main/java/com/baeldung/definition/domain/Address.java Normal file
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@ -0,0 +1,14 @@
package com.baeldung.definition.domain;
import lombok.Data;
@Data
public class Address {
private String street;
private int number;
public Address(String street, int number) {
this.street = street;
this.number = number;
}
}

14
spring-core/src/main/java/com/baeldung/definition/domain/Company.java Normal file
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@ -0,0 +1,14 @@
package com.baeldung.definition.domain;
import lombok.Data;
import org.springframework.stereotype.Component;
@Data
@Component
public class Company {
private Address address;
public Company(Address address) {
this.address = address;
}
}

18
spring-core/src/test/java/com/baeldung/definition/SpringBeanIntegrationTest.java Normal file
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@ -0,0 +1,18 @@
package com.baeldung.definition;
import com.baeldung.definition.domain.Company;
import org.junit.Test;
import org.springframework.context.ApplicationContext;
import org.springframework.context.annotation.AnnotationConfigApplicationContext;
import static org.junit.Assert.assertEquals;
public class SpringBeanIntegrationTest {
@Test
public void whenUsingIoC_thenDependenciesAreInjected() {
ApplicationContext context = new AnnotationConfigApplicationContext(Config.class);
Company company = context.getBean("company", Company.class);
assertEquals("High Street", company.getAddress().getStreet());
assertEquals(1000, company.getAddress().getNumber());
}
}

2
spring-security-mvc-socket/README.md
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@ -7,4 +7,4 @@ To login, use credentials from the data.sql file in src/main/resource, eg: user/
### Relevant Articles:
- [Intro to Security and WebSockets](http://www.baeldung.com/spring-security-websockets)
- [Spring WebSockets: Specific User Chat](http://www.baeldung.com/spring-websocket-specific-user-chat)
- [Spring WebSockets: Specific User Chat](https://www.baeldung.com/spring-websockets-send-message-to-user)