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java-tutorials
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Merge branch 'master' of https://github.com/eugenp/tutorials

This commit is contained in:
Ahmed Tawila 2017-12-05 16:02:22 +02:00
parent b05e035814 b258e5394f
commit fec5927d90
11 changed files with 170 additions and 143 deletions
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28
core-java-concurrency/src/test/java/com/baeldung/concurrent/executorservice/WaitingForThreadsToFinishTest.java
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@ -9,7 +9,6 @@ import java.util.List;
import java.util.concurrent.*;
import static junit.framework.TestCase.assertTrue;
import static org.junit.Assert.fail;
public class WaitingForThreadsToFinishTest {
@ -40,16 +39,13 @@ public class WaitingForThreadsToFinishTest {
CountDownLatch latch = new CountDownLatch(2);
for (int i = 0; i < 2; i++) {
WORKER_THREAD_POOL.submit(new Runnable() {
@Override
public void run() {
try {
Thread.sleep(1000);
latch.countDown();
} catch (InterruptedException e) {
e.printStackTrace();
Thread.currentThread().interrupt();
}
WORKER_THREAD_POOL.submit(() -> {
try {
Thread.sleep(1000);
latch.countDown();
} catch (InterruptedException e) {
e.printStackTrace();
Thread.currentThread().interrupt();
}
});
}
@ -83,13 +79,9 @@ public class WaitingForThreadsToFinishTest {
awaitTerminationAfterShutdown(WORKER_THREAD_POOL);
try {
WORKER_THREAD_POOL.submit(new Callable<String>() {
@Override
public String call() throws Exception {
fail("This thread should have been rejected !");
Thread.sleep(1000000);
return null;
}
WORKER_THREAD_POOL.submit((Callable<String>) () -> {
Thread.sleep(1000000);
return null;
});
} catch (RejectedExecutionException ex) {
//

41
gradle/gradle-fat-jar/build.gradle Normal file
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@ -0,0 +1,41 @@
buildscript {
repositories {
jcenter()
}
dependencies {
classpath 'com.github.jengelman.gradle.plugins:shadow:2.0.1'
}
}
apply plugin: 'java'
apply plugin: 'com.github.johnrengelman.shadow'
repositories {
mavenCentral()
}
jar {
manifest {
attributes "Main-Class": "com.baeldung.fatjar.Application"
}
from {
configurations.compile.collect { it.isDirectory() ? it : zipTree(it) }
}
}
task customFatJar(type: Jar) {
manifest {
attributes 'Main-Class': 'com.baeldung.fatjar.Application'
}
baseName = 'all-in-one-jar'
from { configurations.compile.collect { it.isDirectory() ? it : zipTree(it) } }
with jar
}
dependencies{
compile group: 'org.slf4j', name: 'slf4j-api', version: '1.7.25'
compile group: 'org.slf4j', name: 'slf4j-simple', version: '1.7.25'
}

16
gradle/gradle-fat-jar/src/main/java/com/baeldung/fatjar/Application.java Normal file
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@ -0,0 +1,16 @@
package com.baeldung.fatjar;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class Application {
static final Logger logger = LoggerFactory.getLogger(Application.class);
public static void main(String[] args) {
logger.info("Hello at Baeldung!");
}
}

45
spring-cloud/spring-cloud-consul/src/main/java/com/baeldung/spring/cloud/consul/discovery/DiscoveryClientApplication.java
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@ -1,59 +1,16 @@
package com.baeldung.spring.cloud.consul.discovery;
import java.net.URI;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.builder.SpringApplicationBuilder;
import org.springframework.cloud.client.discovery.DiscoveryClient;
import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
import org.springframework.context.annotation.Bean;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.client.RestTemplate;
@SpringBootApplication
@EnableDiscoveryClient
@RestController
public class DiscoveryClientApplication {
@Bean
public RestTemplate restTemplate() {
return new RestTemplate();
}
@Autowired
private DiscoveryClient discoveryClient;
@GetMapping("/discoveryClient")
public String home() {
return restTemplate().getForEntity(serviceUrl().resolve("/ping"), String.class)
.getBody();
}
@GetMapping("/ping")
public String ping() {
return "pong";
}
@RequestMapping("/my-health-check")
public ResponseEntity<String> myCustomCheck() {
return new ResponseEntity<>(HttpStatus.OK);
}
public URI serviceUrl() {
return discoveryClient.getInstances("myApp")
.stream()
.findFirst()
.map(si -> si.getUri())
.orElse(null);
}
public static void main(String[] args) {
new SpringApplicationBuilder(DiscoveryClientApplication.class).web(true)
.run(args);
}
}

50
spring-cloud/spring-cloud-consul/src/main/java/com/baeldung/spring/cloud/consul/discovery/DiscoveryClientController.java Normal file
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@ -0,0 +1,50 @@
package com.baeldung.spring.cloud.consul.discovery;
import java.net.URI;
import java.util.Optional;
import javax.naming.ServiceUnavailableException;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cloud.client.discovery.DiscoveryClient;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.client.RestClientException;
import org.springframework.web.client.RestTemplate;
@RestController
public class DiscoveryClientController {
@Autowired
private DiscoveryClient discoveryClient;
private final RestTemplate restTemplate = new RestTemplate();
@GetMapping("/discoveryClient")
public String discoveryPing() throws RestClientException, ServiceUnavailableException {
URI service = serviceUrl().map(s -> s.resolve("/ping"))
.orElseThrow(ServiceUnavailableException::new);
return restTemplate.getForEntity(service, String.class)
.getBody();
}
@GetMapping("/ping")
public String ping() {
return "pong";
}
@GetMapping("/my-health-check")
public ResponseEntity<String> myCustomCheck() {
return new ResponseEntity<>(HttpStatus.OK);
}
public Optional<URI> serviceUrl() {
return discoveryClient.getInstances("myApp")
.stream()
.findFirst()
.map(si -> si.getUri());
}
}

15
spring-cloud/spring-cloud-consul/src/main/java/com/baeldung/spring/cloud/consul/health/ServiceDiscoveryApplication.java
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@ -2,24 +2,9 @@ package com.baeldung.spring.cloud.consul.health;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.builder.SpringApplicationBuilder;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
@SpringBootApplication
@RestController
public class ServiceDiscoveryApplication {
@RequestMapping("/my-health-check")
public ResponseEntity<String> myCustomCheck() {
String message = "Testing my healh check function";
return new ResponseEntity<>(message, HttpStatus.FORBIDDEN);
}
@RequestMapping("/ping")
public String ping() {
return "pong";
}
public static void main(String[] args) {
new SpringApplicationBuilder(ServiceDiscoveryApplication.class).web(true)

22
spring-cloud/spring-cloud-consul/src/main/java/com/baeldung/spring/cloud/consul/health/ServiceDiscoveryController.java Normal file
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@ -0,0 +1,22 @@
package com.baeldung.spring.cloud.consul.health;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;
@RestController
public class ServiceDiscoveryController {
@GetMapping("/ping")
public String ping() {
return "pong";
}
@GetMapping("/my-health-check")
public ResponseEntity<String> myCustomCheck() {
String message = "Testing my healh check function";
return new ResponseEntity<>(message, HttpStatus.FORBIDDEN);
}
}

20
spring-cloud/spring-cloud-consul/src/main/java/com/baeldung/spring/cloud/consul/properties/DistributedPropertiesApplication.java
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@ -1,34 +1,16 @@
package com.baeldung.spring.cloud.consul.properties;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.builder.SpringApplicationBuilder;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
@SpringBootApplication
@RestController
public class DistributedPropertiesApplication {
@Value("${my.prop}")
String value;
@Autowired
private MyProperties properties;
@RequestMapping("/getConfigFromValue")
public String getConfigFromValue() {
return value;
}
@RequestMapping("/getConfigFromProperty")
public String getConfigFromProperty() {
return properties.getProp();
}
public static void main(String[] args) {
new SpringApplicationBuilder(DistributedPropertiesApplication.class).web(true)
.run(args);
}
}

27
spring-cloud/spring-cloud-consul/src/main/java/com/baeldung/spring/cloud/consul/properties/DistributedPropertiesController.java Normal file
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@ -0,0 +1,27 @@
package com.baeldung.spring.cloud.consul.properties;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;
@RestController
public class DistributedPropertiesController {
@Value("${my.prop}")
String value;
@Autowired
private MyProperties properties;
@GetMapping("/getConfigFromValue")
public String getConfigFromValue() {
return value;
}
@GetMapping("/getConfigFromProperty")
public String getConfigFromProperty() {
return properties.getProp();
}
}

2
spring-cloud/spring-cloud-consul/src/main/java/com/baeldung/spring/cloud/consul/properties/MyProperties.java
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@ -8,6 +8,7 @@ import org.springframework.context.annotation.Configuration;
@Configuration
@ConfigurationProperties("my")
public class MyProperties {
private String prop;
public String getProp() {
@ -17,4 +18,5 @@ public class MyProperties {
public void setProp(String prop) {
this.prop = prop;
}
}

47
spring-cloud/spring-cloud-consul/src/main/java/com/baeldung/spring/cloud/consul/ribbon/RibbonClientApplication.java
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@ -1,47 +0,0 @@
package com.baeldung.spring.cloud.consul.ribbon;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.builder.SpringApplicationBuilder;
import org.springframework.cloud.client.loadbalancer.LoadBalanced;
import org.springframework.context.annotation.Bean;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.client.RestTemplate;
@SpringBootApplication
@RestController
public class RibbonClientApplication {
@LoadBalanced
@Bean
RestTemplate getRestTemplate() {
return new RestTemplate();
}
@Autowired
RestTemplate restTemplate;
@RequestMapping("/ribbonClient")
public String home() {
return restTemplate.getForObject("http://myApp/ping", String.class);
}
@GetMapping("/ping")
public String ping() {
return "pong";
}
@RequestMapping("/my-health-check")
public ResponseEntity<String> myCustomCheck() {
return new ResponseEntity<>(HttpStatus.OK);
}
public static void main(String[] args) {
new SpringApplicationBuilder(RibbonClientApplication.class).web(true)
.run(args);
}
}