Merge branch 'master' into BAEL-6818-check-value-exists-json-array

This commit is contained in:
Sam Gardner
2023-08-22 10:05:00 +01:00
327 changed files with 10693 additions and 2511 deletions
+4 -1
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@@ -124,4 +124,7 @@ devDb*.db
*.xjb
#neo4j
persistence-modules/neo4j/data/**
persistence-modules/neo4j/data/**
/deep-shallow-copy/.mvn/wrapper
/deep-shallow-copy/mvnw
/deep-shallow-copy/mvnw.cmd
@@ -0,0 +1,19 @@
package com.baeldung.algorithms.latlondistance;
public class EquirectangularApproximation {
private static final int EARTH_RADIUS = 6371; // Approx Earth radius in KM
public static double calculateDistance(double lat1, double lon1, double lat2, double lon2) {
double lat1Rad = Math.toRadians(lat1);
double lat2Rad = Math.toRadians(lat2);
double lon1Rad = Math.toRadians(lon1);
double lon2Rad = Math.toRadians(lon2);
double x = (lon2Rad - lon1Rad) * Math.cos((lat1Rad + lat2Rad) / 2);
double y = (lat2Rad - lat1Rad);
double distance = Math.sqrt(x * x + y * y) * EARTH_RADIUS;
return distance;
}
}
@@ -0,0 +1,24 @@
package com.baeldung.algorithms.latlondistance;
public class HaversineDistance {
private static final int EARTH_RADIUS = 6371; // Approx Earth radius in KM
public static double calculateDistance(double startLat, double startLong,
double endLat, double endLong) {
double dLat = Math.toRadians((endLat - startLat));
double dLong = Math.toRadians((endLong - startLong));
startLat = Math.toRadians(startLat);
endLat = Math.toRadians(endLat);
double a = haversine(dLat) + Math.cos(startLat) * Math.cos(endLat) * haversine(dLong);
double c = 2 * Math.atan2(Math.sqrt(a), Math.sqrt(1 - a));
return EARTH_RADIUS * c;
}
public static double haversine(double val) {
return Math.pow(Math.sin(val / 2), 2);
}
}
@@ -0,0 +1,53 @@
package com.baeldung.algorithms.latlondistance;
public class VincentyDistance {
// Constants for WGS84 ellipsoid model of Earth
private static final double SEMI_MAJOR_AXIS_MT = 6378137;
private static final double SEMI_MINOR_AXIS_MT = 6356752.314245;
private static final double FLATTENING = 1 / 298.257223563;
private static final double ERROR_TOLERANCE = 1e-12;
public static double calculateDistance(double latitude1, double longitude1, double latitude2, double longitude2) {
double U1 = Math.atan((1 - FLATTENING) * Math.tan(Math.toRadians(latitude1)));
double U2 = Math.atan((1 - FLATTENING) * Math.tan(Math.toRadians(latitude2)));
double sinU1 = Math.sin(U1);
double cosU1 = Math.cos(U1);
double sinU2 = Math.sin(U2);
double cosU2 = Math.cos(U2);
double longitudeDifference = Math.toRadians(longitude2 - longitude1);
double previousLongitudeDifference;
double sinSigma, cosSigma, sigma, sinAlpha, cosSqAlpha, cos2SigmaM;
do {
sinSigma = Math.sqrt(Math.pow(cosU2 * Math.sin(longitudeDifference), 2) +
Math.pow(cosU1 * sinU2 - sinU1 * cosU2 * Math.cos(longitudeDifference), 2));
cosSigma = sinU1 * sinU2 + cosU1 * cosU2 * Math.cos(longitudeDifference);
sigma = Math.atan2(sinSigma, cosSigma);
sinAlpha = cosU1 * cosU2 * Math.sin(longitudeDifference) / sinSigma;
cosSqAlpha = 1 - Math.pow(sinAlpha, 2);
cos2SigmaM = cosSigma - 2 * sinU1 * sinU2 / cosSqAlpha;
if (Double.isNaN(cos2SigmaM)) {
cos2SigmaM = 0;
}
previousLongitudeDifference = longitudeDifference;
double C = FLATTENING / 16 * cosSqAlpha * (4 + FLATTENING * (4 - 3 * cosSqAlpha));
longitudeDifference = Math.toRadians(longitude2 - longitude1) + (1 - C) * FLATTENING * sinAlpha *
(sigma + C * sinSigma * (cos2SigmaM + C * cosSigma * (-1 + 2 * Math.pow(cos2SigmaM, 2))));
} while (Math.abs(longitudeDifference - previousLongitudeDifference) > ERROR_TOLERANCE);
double uSq = cosSqAlpha * (Math.pow(SEMI_MAJOR_AXIS_MT, 2) - Math.pow(SEMI_MINOR_AXIS_MT, 2)) / Math.pow(SEMI_MINOR_AXIS_MT, 2);
double A = 1 + uSq / 16384 * (4096 + uSq * (-768 + uSq * (320 - 175 * uSq)));
double B = uSq / 1024 * (256 + uSq * (-128 + uSq * (74 - 47 * uSq)));
double deltaSigma = B * sinSigma * (cos2SigmaM + B / 4 * (cosSigma * (-1 + 2 * Math.pow(cos2SigmaM, 2)) -
B / 6 * cos2SigmaM * (-3 + 4 * Math.pow(sinSigma, 2)) * (-3 + 4 * Math.pow(cos2SigmaM, 2))));
double distanceMt = SEMI_MINOR_AXIS_MT * A * (sigma - deltaSigma);
return distanceMt / 1000;
}
}
@@ -0,0 +1,26 @@
package com.baeldung.algorithms.latlondistance;
import org.junit.jupiter.api.Test;
import static org.junit.jupiter.api.Assertions.assertTrue;
class GeoDistanceUnitTest {
@Test
public void testCalculateDistance() {
double lat1 = 40.714268; // New York
double lon1 = -74.005974;
double lat2 = 34.0522; // Los Angeles
double lon2 = -118.2437;
double equirectangularDistance = EquirectangularApproximation.calculateDistance(lat1, lon1, lat2, lon2);
double haversineDistance = HaversineDistance.calculateDistance(lat1, lon1, lat2, lon2);
double vincentyDistance = VincentyDistance.calculateDistance(lat1, lon1, lat2, lon2);
double expectedDistance = 3944;
assertTrue(Math.abs(equirectangularDistance - expectedDistance) < 100);
assertTrue(Math.abs(haversineDistance - expectedDistance) < 10);
assertTrue(Math.abs(vincentyDistance - expectedDistance) < 0.5);
}
}
@@ -1,36 +1,43 @@
package com.baeldung.tlsversion;
import javax.net.ssl.SSLSocket;
import org.apache.http.HttpEntity;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.conn.ssl.SSLConnectionSocketFactory;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.ssl.SSLContexts;
import org.apache.http.util.EntityUtils;
import java.io.IOException;
import javax.net.ssl.SSLSocket;
import org.apache.hc.client5.http.classic.methods.HttpGet;
import org.apache.hc.client5.http.config.TlsConfig;
import org.apache.hc.client5.http.impl.classic.CloseableHttpClient;
import org.apache.hc.client5.http.impl.classic.CloseableHttpResponse;
import org.apache.hc.client5.http.impl.classic.HttpClients;
import org.apache.hc.client5.http.impl.io.PoolingHttpClientConnectionManagerBuilder;
import org.apache.hc.client5.http.io.HttpClientConnectionManager;
import org.apache.hc.client5.http.ssl.SSLConnectionSocketFactory;
import org.apache.hc.core5.http.HttpEntity;
import org.apache.hc.core5.http.io.entity.EntityUtils;
import org.apache.hc.core5.http.ssl.TLS;
import org.apache.hc.core5.ssl.SSLContexts;
import org.apache.hc.core5.util.Timeout;
public class ClientTlsVersionExamples {
public static CloseableHttpClient setViaSocketFactory() {
SSLConnectionSocketFactory sslsf = new SSLConnectionSocketFactory(
SSLContexts.createDefault(),
new String[] { "TLSv1.2", "TLSv1.3" },
null,
SSLConnectionSocketFactory.getDefaultHostnameVerifier());
final HttpClientConnectionManager cm = PoolingHttpClientConnectionManagerBuilder.create()
.setDefaultTlsConfig(TlsConfig.custom()
.setHandshakeTimeout(Timeout.ofSeconds(30))
.setSupportedProtocols(TLS.V_1_2, TLS.V_1_3)
.build())
.build();
return HttpClients.custom().setSSLSocketFactory(sslsf).build();
return HttpClients.custom()
.setConnectionManager(cm)
.build();
}
public static CloseableHttpClient setTlsVersionPerConnection() {
SSLConnectionSocketFactory sslsf = new SSLConnectionSocketFactory(SSLContexts.createDefault()) {
@Override
protected void prepareSocket(SSLSocket socket) {
String hostname = socket.getInetAddress().getHostName();
String hostname = socket.getInetAddress()
.getHostName();
if (hostname.endsWith("internal.system.com")) {
socket.setEnabledProtocols(new String[] { "TLSv1", "TLSv1.1", "TLSv1.2", "TLSv1.3" });
} else {
@@ -39,7 +46,14 @@ public class ClientTlsVersionExamples {
}
};
return HttpClients.custom().setSSLSocketFactory(sslsf).build();
HttpClientConnectionManager connManager = PoolingHttpClientConnectionManagerBuilder.create()
.setSSLSocketFactory(sslsf)
.build();
return HttpClients.custom()
.setConnectionManager(connManager)
.build();
}
// To configure the TLS versions for the client, set the https.protocols system property during runtime.
@@ -47,15 +61,11 @@ public class ClientTlsVersionExamples {
public static CloseableHttpClient setViaSystemProperties() {
return HttpClients.createSystem();
// Alternatively:
// return HttpClients.custom().useSystemProperties().build();
//return HttpClients.custom().useSystemProperties().build();
}
public static void main(String[] args) throws IOException {
// Alternatively:
// CloseableHttpClient httpClient = setTlsVersionPerConnection();
// CloseableHttpClient httpClient = setViaSystemProperties();
try (CloseableHttpClient httpClient = setViaSocketFactory();
CloseableHttpResponse response = httpClient.execute(new HttpGet("https://httpbin.org/"))) {
try (CloseableHttpClient httpClient = setViaSocketFactory(); CloseableHttpResponse response = httpClient.execute(new HttpGet("https://httpbin.org/"))) {
HttpEntity entity = response.getEntity();
EntityUtils.consume(entity);
@@ -1,29 +1,5 @@
package com.baeldung.httpclient.advancedconfig;
import com.github.tomakehurst.wiremock.junit.WireMockRule;
import org.apache.http.HttpHeaders;
import org.apache.http.HttpHost;
import org.apache.http.HttpResponse;
import org.apache.http.auth.AuthScope;
import org.apache.http.auth.UsernamePasswordCredentials;
import org.apache.http.client.AuthCache;
import org.apache.http.client.CredentialsProvider;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.client.protocol.HttpClientContext;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.auth.BasicScheme;
import org.apache.http.impl.client.BasicAuthCache;
import org.apache.http.impl.client.BasicCredentialsProvider;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.impl.conn.DefaultProxyRoutePlanner;
import org.junit.Rule;
import org.junit.Test;
import java.io.IOException;
import static com.github.tomakehurst.wiremock.client.WireMock.aResponse;
import static com.github.tomakehurst.wiremock.client.WireMock.containing;
import static com.github.tomakehurst.wiremock.client.WireMock.equalTo;
@@ -34,6 +10,30 @@ import static com.github.tomakehurst.wiremock.client.WireMock.urlEqualTo;
import static com.github.tomakehurst.wiremock.client.WireMock.urlMatching;
import static org.junit.Assert.assertEquals;
import java.io.IOException;
import org.apache.hc.client5.http.auth.AuthCache;
import org.apache.hc.client5.http.auth.AuthScope;
import org.apache.hc.client5.http.auth.CredentialsProvider;
import org.apache.hc.client5.http.auth.StandardAuthScheme;
import org.apache.hc.client5.http.classic.HttpClient;
import org.apache.hc.client5.http.classic.methods.HttpGet;
import org.apache.hc.client5.http.classic.methods.HttpPost;
import org.apache.hc.client5.http.impl.auth.BasicAuthCache;
import org.apache.hc.client5.http.impl.auth.BasicScheme;
import org.apache.hc.client5.http.impl.auth.CredentialsProviderBuilder;
import org.apache.hc.client5.http.impl.classic.HttpClients;
import org.apache.hc.client5.http.impl.routing.DefaultProxyRoutePlanner;
import org.apache.hc.client5.http.protocol.HttpClientContext;
import org.apache.hc.core5.http.HttpHeaders;
import org.apache.hc.core5.http.HttpHost;
import org.apache.hc.core5.http.HttpResponse;
import org.apache.hc.core5.http.io.entity.StringEntity;
import org.junit.Rule;
import org.junit.Test;
import com.github.tomakehurst.wiremock.junit.WireMockRule;
public class HttpClientAdvancedConfigurationIntegrationTest {
@Rule
@@ -59,7 +59,7 @@ public class HttpClientAdvancedConfigurationIntegrationTest {
HttpResponse response = httpClient.execute(httpGet);
//then
assertEquals(response.getStatusLine().getStatusCode(), 200);
assertEquals(response.getCode(), 200);
}
@Test
@@ -82,7 +82,7 @@ public class HttpClientAdvancedConfigurationIntegrationTest {
HttpResponse response = httpClient.execute(httpPost);
//then
assertEquals(response.getStatusLine().getStatusCode(), 200);
assertEquals(response.getCode(), 200);
}
@@ -107,7 +107,7 @@ public class HttpClientAdvancedConfigurationIntegrationTest {
HttpResponse response = httpclient.execute(httpGet);
//then
assertEquals(response.getStatusLine().getStatusCode(), 200);
assertEquals(response.getCode(), 200);
proxyMock.verify(getRequestedFor(urlEqualTo("/private")));
serviceMock.verify(getRequestedFor(urlEqualTo("/private")));
}
@@ -125,14 +125,12 @@ public class HttpClientAdvancedConfigurationIntegrationTest {
DefaultProxyRoutePlanner routePlanner = new DefaultProxyRoutePlanner(proxy);
// Client credentials
CredentialsProvider credentialsProvider = new BasicCredentialsProvider();
credentialsProvider.setCredentials(new AuthScope(proxy),
new UsernamePasswordCredentials("username_admin", "secret_password"));
CredentialsProvider credentialsProvider = CredentialsProviderBuilder.create()
.add(new AuthScope(proxy), "username_admin", "secret_password".toCharArray())
.build();
// Create AuthCache instance
AuthCache authCache = new BasicAuthCache();
// Generate BASIC scheme object and add it to the local auth cache
BasicScheme basicAuth = new BasicScheme();
authCache.put(proxy, basicAuth);
@@ -149,10 +147,11 @@ public class HttpClientAdvancedConfigurationIntegrationTest {
//when
final HttpGet httpGet = new HttpGet("http://localhost:8089/private");
httpGet.setHeader("Authorization", StandardAuthScheme.BASIC);
HttpResponse response = httpclient.execute(httpGet, context);
//then
assertEquals(response.getStatusLine().getStatusCode(), 200);
assertEquals(response.getCode(), 200);
proxyMock.verify(getRequestedFor(urlEqualTo("/private")).withHeader("Authorization", containing("Basic")));
serviceMock.verify(getRequestedFor(urlEqualTo("/private")));
}
@@ -0,0 +1,64 @@
package com.baeldung.tlsversion;
import javax.net.ssl.SSLSocket;
import org.apache.http.HttpEntity;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.conn.ssl.SSLConnectionSocketFactory;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.ssl.SSLContexts;
import org.apache.http.util.EntityUtils;
import java.io.IOException;
public class ClientTlsVersionExamples {
public static CloseableHttpClient setViaSocketFactory() {
SSLConnectionSocketFactory sslsf = new SSLConnectionSocketFactory(
SSLContexts.createDefault(),
new String[] { "TLSv1.2", "TLSv1.3" },
null,
SSLConnectionSocketFactory.getDefaultHostnameVerifier());
return HttpClients.custom().setSSLSocketFactory(sslsf).build();
}
public static CloseableHttpClient setTlsVersionPerConnection() {
SSLConnectionSocketFactory sslsf = new SSLConnectionSocketFactory(SSLContexts.createDefault()) {
@Override
protected void prepareSocket(SSLSocket socket) {
String hostname = socket.getInetAddress().getHostName();
if (hostname.endsWith("internal.system.com")) {
socket.setEnabledProtocols(new String[] { "TLSv1", "TLSv1.1", "TLSv1.2", "TLSv1.3" });
} else {
socket.setEnabledProtocols(new String[] { "TLSv1.3" });
}
}
};
return HttpClients.custom().setSSLSocketFactory(sslsf).build();
}
// To configure the TLS versions for the client, set the https.protocols system property during runtime.
// For example: java -Dhttps.protocols=TLSv1.1,TLSv1.2,TLSv1.3 -jar webClient.jar
public static CloseableHttpClient setViaSystemProperties() {
return HttpClients.createSystem();
// Alternatively:
// return HttpClients.custom().useSystemProperties().build();
}
public static void main(String[] args) throws IOException {
// Alternatively:
// CloseableHttpClient httpClient = setTlsVersionPerConnection();
// CloseableHttpClient httpClient = setViaSystemProperties();
try (CloseableHttpClient httpClient = setViaSocketFactory();
CloseableHttpResponse response = httpClient.execute(new HttpGet("https://httpbin.org/"))) {
HttpEntity entity = response.getEntity();
EntityUtils.consume(entity);
}
}
}
@@ -0,0 +1,161 @@
package com.baeldung.httpclient.advancedconfig;
import com.github.tomakehurst.wiremock.junit.WireMockRule;
import org.apache.http.HttpHeaders;
import org.apache.http.HttpHost;
import org.apache.http.HttpResponse;
import org.apache.http.auth.AuthScope;
import org.apache.http.auth.UsernamePasswordCredentials;
import org.apache.http.client.AuthCache;
import org.apache.http.client.CredentialsProvider;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.client.protocol.HttpClientContext;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.auth.BasicScheme;
import org.apache.http.impl.client.BasicAuthCache;
import org.apache.http.impl.client.BasicCredentialsProvider;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.impl.conn.DefaultProxyRoutePlanner;
import org.junit.Rule;
import org.junit.Test;
import java.io.IOException;
import static com.github.tomakehurst.wiremock.client.WireMock.aResponse;
import static com.github.tomakehurst.wiremock.client.WireMock.containing;
import static com.github.tomakehurst.wiremock.client.WireMock.equalTo;
import static com.github.tomakehurst.wiremock.client.WireMock.get;
import static com.github.tomakehurst.wiremock.client.WireMock.getRequestedFor;
import static com.github.tomakehurst.wiremock.client.WireMock.post;
import static com.github.tomakehurst.wiremock.client.WireMock.urlEqualTo;
import static com.github.tomakehurst.wiremock.client.WireMock.urlMatching;
import static org.junit.Assert.assertEquals;
public class HttpClientAdvancedConfigurationIntegrationTest {
@Rule
public WireMockRule serviceMock = new WireMockRule(8089);
@Rule
public WireMockRule proxyMock = new WireMockRule(8090);
@Test
public void givenClientWithCustomUserAgentHeader_whenExecuteRequest_shouldReturn200() throws IOException {
//given
String userAgent = "BaeldungAgent/1.0";
serviceMock.stubFor(get(urlEqualTo("/detail"))
.withHeader("User-Agent", equalTo(userAgent))
.willReturn(aResponse()
.withStatus(200)));
HttpClient httpClient = HttpClients.createDefault();
HttpGet httpGet = new HttpGet("http://localhost:8089/detail");
httpGet.setHeader(HttpHeaders.USER_AGENT, userAgent);
//when
HttpResponse response = httpClient.execute(httpGet);
//then
assertEquals(response.getStatusLine().getStatusCode(), 200);
}
@Test
public void givenClientThatSendDataInBody_whenSendXmlInBody_shouldReturn200() throws IOException {
//given
String xmlBody = "<xml><id>1</id></xml>";
serviceMock.stubFor(post(urlEqualTo("/person"))
.withHeader("Content-Type", equalTo("application/xml"))
.withRequestBody(equalTo(xmlBody))
.willReturn(aResponse()
.withStatus(200)));
HttpClient httpClient = HttpClients.createDefault();
HttpPost httpPost = new HttpPost("http://localhost:8089/person");
httpPost.setHeader("Content-Type", "application/xml");
StringEntity xmlEntity = new StringEntity(xmlBody);
httpPost.setEntity(xmlEntity);
//when
HttpResponse response = httpClient.execute(httpPost);
//then
assertEquals(response.getStatusLine().getStatusCode(), 200);
}
@Test
public void givenServerThatIsBehindProxy_whenClientIsConfiguredToSendRequestViaProxy_shouldReturn200() throws IOException {
//given
proxyMock.stubFor(get(urlMatching(".*"))
.willReturn(aResponse().proxiedFrom("http://localhost:8089/")));
serviceMock.stubFor(get(urlEqualTo("/private"))
.willReturn(aResponse().withStatus(200)));
HttpHost proxy = new HttpHost("localhost", 8090);
DefaultProxyRoutePlanner routePlanner = new DefaultProxyRoutePlanner(proxy);
HttpClient httpclient = HttpClients.custom()
.setRoutePlanner(routePlanner)
.build();
//when
final HttpGet httpGet = new HttpGet("http://localhost:8089/private");
HttpResponse response = httpclient.execute(httpGet);
//then
assertEquals(response.getStatusLine().getStatusCode(), 200);
proxyMock.verify(getRequestedFor(urlEqualTo("/private")));
serviceMock.verify(getRequestedFor(urlEqualTo("/private")));
}
@Test
public void givenServerThatIsBehindAuthorizationProxy_whenClientSendRequest_shouldAuthorizeProperly() throws IOException {
//given
proxyMock.stubFor(get(urlMatching("/private"))
.willReturn(aResponse().proxiedFrom("http://localhost:8089/")));
serviceMock.stubFor(get(urlEqualTo("/private"))
.willReturn(aResponse().withStatus(200)));
HttpHost proxy = new HttpHost("localhost", 8090);
DefaultProxyRoutePlanner routePlanner = new DefaultProxyRoutePlanner(proxy);
// Client credentials
CredentialsProvider credentialsProvider = new BasicCredentialsProvider();
credentialsProvider.setCredentials(new AuthScope(proxy),
new UsernamePasswordCredentials("username_admin", "secret_password"));
// Create AuthCache instance
AuthCache authCache = new BasicAuthCache();
// Generate BASIC scheme object and add it to the local auth cache
BasicScheme basicAuth = new BasicScheme();
authCache.put(proxy, basicAuth);
HttpClientContext context = HttpClientContext.create();
context.setCredentialsProvider(credentialsProvider);
context.setAuthCache(authCache);
HttpClient httpclient = HttpClients.custom()
.setRoutePlanner(routePlanner)
.setDefaultCredentialsProvider(credentialsProvider)
.build();
//when
final HttpGet httpGet = new HttpGet("http://localhost:8089/private");
HttpResponse response = httpclient.execute(httpGet, context);
//then
assertEquals(response.getStatusLine().getStatusCode(), 200);
proxyMock.verify(getRequestedFor(urlEqualTo("/private")).withHeader("Authorization", containing("Basic")));
serviceMock.verify(getRequestedFor(urlEqualTo("/private")));
}
}
+1
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@@ -12,3 +12,4 @@ You can build the project from the command line using: *mvn clean install*, or i
- [Is a Key Required as Part of Sending Messages to Kafka?](https://www.baeldung.com/java-kafka-message-key)
- [Read Data From the Beginning Using Kafka Consumer API](https://www.baeldung.com/java-kafka-consumer-api-read)
- [Get Partition Count for a Topic in Kafka](https://www.baeldung.com/java-kafka-partition-count-topic)
- [bootstrap-server in Kafka Configuration](https://www.baeldung.com/java-kafka-bootstrap-server)
@@ -0,0 +1,39 @@
package com.baeldung.kafka.consumer;
import org.apache.kafka.clients.consumer.*;
import org.apache.kafka.common.serialization.LongDeserializer;
import org.apache.kafka.common.serialization.StringDeserializer;
import java.time.Duration;
import java.util.Arrays;
import java.util.Properties;
public class SimpleConsumerWithBootStrapServers {
public static void main(String[] args) {
try(final Consumer<Long, String> consumer = createConsumer()) {
ConsumerRecords<Long, String> records = consumer.poll(Duration.ofMinutes(1));
for(ConsumerRecord<Long, String> record : records) {
System.out.println(record.value());
}
}
}
private static Consumer<Long, String> createConsumer() {
final Properties props = new Properties();
props.put(ConsumerConfig.BOOTSTRAP_SERVERS_CONFIG,
"localhost:9092,another-host.com:29092");
props.put(ConsumerConfig.GROUP_ID_CONFIG,
"MySampleConsumer");
props.put(ConsumerConfig.KEY_DESERIALIZER_CLASS_CONFIG,
LongDeserializer.class.getName());
props.put(ConsumerConfig.VALUE_DESERIALIZER_CLASS_CONFIG,
StringDeserializer.class.getName());
// Create the consumer using props.
final Consumer<Long, String> consumer = new KafkaConsumer<Long, String>(props);
// Subscribe to the topic.
consumer.subscribe(Arrays.asList("samples"));
return consumer;
}
}
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+29
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@@ -0,0 +1,29 @@
<?xml version="1.0" encoding="UTF-8"?>
<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>
<artifactId>apache-libraries-2</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>apache-libraries-2</name>
<parent>
<groupId>com.baeldung</groupId>
<artifactId>parent-modules</artifactId>
<version>1.0.0-SNAPSHOT</version>
</parent>
<dependencies>
<dependency>
<groupId>javax.validation</groupId>
<artifactId>validation-api</artifactId>
<version>${javax.validation.validation-api.version}</version>
</dependency>
</dependencies>
<properties>
<javax.validation.validation-api.version>2.0.1.Final</javax.validation.validation-api.version>
</properties>
</project>
@@ -0,0 +1,18 @@
package com.baeldung.xslt;
import javax.xml.transform.*;
import javax.xml.transform.stream.StreamResult;
import javax.xml.transform.stream.StreamSource;
import java.io.File;
public class XSLTProcessor {
public static void transformXMLUsingXSLT(String inputXMLPath, String xsltPath, String outputHTMLPath) throws TransformerException {
Source xmlSource = new StreamSource(new File(inputXMLPath));
Source xsltSource = new StreamSource(new File(xsltPath));
Result output = new StreamResult(new File(outputHTMLPath));
TransformerFactory transformerFactory = TransformerFactory.newInstance();
Transformer transformer = transformerFactory.newTransformer(xsltSource);
transformer.transform(xmlSource, output);
}
}
@@ -0,0 +1,47 @@
{
"type":"record",
"name":"AvroHttpRequest",
"namespace":"com.baeldung.avro.model",
"fields":[
{
"name":"requestTime",
"type":"long"
},
{
"name":"clientIdentifier",
"type":{
"type":"record",
"name":"ClientIdentifier",
"fields":[
{
"name":"hostName",
"type":"string"
},
{
"name":"ipAddress",
"type":"string"
}
]
}
},
{
"name":"employeeNames",
"type":{
"type":"array",
"items":"string"
},
"default":null
},
{
"name":"active",
"type":{
"type":"enum",
"name":"Active",
"symbols":[
"YES",
"NO"
]
}
}
]
}
@@ -0,0 +1,18 @@
<?xml version="1.0" encoding="UTF-8"?>
<Configuration status="WARN">
<Appenders>
<Console name="Console" target="SYSTEM_OUT">
<PatternLayout pattern="%d{HH:mm:ss.SSS} [%t] %-5level %logger{36} - %msg%n"/>
</Console>
</Appenders>
<Loggers>
<Logger name="org.apache.meecrowave" level="warn">
<AppenderRef ref="Console"/>
</Logger>
<Root level="info">
<AppenderRef ref="Console"/>
</Root>
</Loggers>
</Configuration>
@@ -1,10 +1,13 @@
<?xml version="1.0" encoding="UTF-8"?>
<configuration>
<appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
<encoder>
<pattern>[%level] %msg%n</pattern>
<pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n
</pattern>
</encoder>
</appender>
<root level="debug">
<root level="INFO">
<appender-ref ref="STDOUT" />
</root>
</configuration>
@@ -0,0 +1,29 @@
package com.baeldung.xslt;
import org.junit.jupiter.api.Test;
import javax.xml.transform.TransformerException;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import static org.junit.jupiter.api.Assertions.assertTrue;
public class XSLTProcessorUnitTest {
@Test
public void givenValidInputAndStylesheet_whenTransformingXML_thenOutputHTMLCreated() throws TransformerException, IOException {
// Given
String inputXMLPath = "src/test/resources/input.xml";
String xsltPath = "src/test/resources/stylesheet.xslt";
String outputHTMLPath = "src/test/resources/output.html";
XSLTProcessor.transformXMLUsingXSLT(inputXMLPath, xsltPath, outputHTMLPath);
Path outputFile = Paths.get(outputHTMLPath);
assertTrue(Files.exists(outputFile));
}
}
@@ -0,0 +1,11 @@
<?xml version="1.0" encoding="UTF-8"?>
<root>
<person gender="male">
<name>John Doe</name>
<age>30</age>
</person>
<person gender="female">
<name>Jane Smith</name>
<age>25</age>
</person>
</root>
@@ -0,0 +1,3 @@
<?xml version="1.0" encoding="UTF-8"?>
<p>Male person: John Doe, Age: 30</p>
<p>Female person: Jane Smith, Age: 25</p>
@@ -0,0 +1,22 @@
<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:template match="person[@gender='male']">
<xsl:element name="p">
<xsl:text>Male person: </xsl:text>
<xsl:value-of select="name"/>
<xsl:text>, Age: </xsl:text>
<xsl:value-of select="age"/>
</xsl:element>
</xsl:template>
<xsl:template match="person[@gender='female']">
<xsl:element name="p">
<xsl:text>Female person: </xsl:text>
<xsl:value-of select="name"/>
<xsl:text>, Age: </xsl:text>
<xsl:value-of select="age"/>
</xsl:element>
</xsl:template>
</xsl:stylesheet>
+1
View File
@@ -13,4 +13,5 @@ This module contains articles about Apache POI.
- [Setting Formulas in Excel with Apache POI](https://www.baeldung.com/java-apache-poi-set-formulas)
- [Set the Date Format Using Apache POI](https://www.baeldung.com/java-apache-poi-date-format)
- [Replacing Variables in a Document Template with Java](https://www.baeldung.com/java-replace-pattern-word-document-doc-docx)
- [Lock Header Rows With Apache POI](https://www.baeldung.com/java-apache-poi-lock-header-rows)
- More articles: [[<-- prev]](../apache-poi)
@@ -0,0 +1,19 @@
package com.baeldung.poi.excel.locksheet;
import org.apache.poi.ss.usermodel.*;
public class LockSheet {
public void lockFirstRow(Sheet sheet) {
sheet.createFreezePane(0, 1);
}
public void lockTwoRows(Sheet sheet) {
sheet.createFreezePane(0, 2);
}
public void lockFirstColumn(Sheet sheet) {
sheet.createFreezePane(1, 0);
}
}
@@ -0,0 +1,53 @@
package com.baeldung.poi.excel.locksheet;
import static org.junit.jupiter.api.Assertions.assertEquals;
import java.io.IOException;
import org.apache.poi.ss.usermodel.*;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.junit.jupiter.api.*;
class LockSheetUnitTest {
private LockSheet lockSheet;
private Workbook workbook;
private Sheet sheet;
@BeforeEach
void setup() {
workbook = new XSSFWorkbook();
sheet = workbook.createSheet();
Row row = sheet.createRow(0);
row.createCell(0).setCellValue("row 1 col 1");
row.createCell(1).setCellValue("row 1 col 2");
row = sheet.createRow(1);
row.createCell(0).setCellValue("row 2 col 1");
row.createCell(1).setCellValue("row 2 col 2");
lockSheet = new LockSheet();
}
@AfterEach
void cleanup() throws IOException {
workbook.close();
}
@Test
void whenLockFirstRow_thenFirstRowIsLocked() {
lockSheet.lockFirstRow(sheet);
assertEquals(sheet.getPaneInformation().getHorizontalSplitPosition(), 1);
}
@Test
void whenLockTwoRows_thenTwoRowsAreLocked() {
lockSheet.lockTwoRows(sheet);
assertEquals(sheet.getPaneInformation().getHorizontalSplitPosition(), 2);
}
@Test
void whenLockFirstColumn_thenFirstColumnIsLocked() {
lockSheet.lockFirstColumn(sheet);
assertEquals(sheet.getPaneInformation().getVerticalSplitPosition(), 1);
}
}
+42
View File
@@ -0,0 +1,42 @@
<?xml version="1.0" encoding="UTF-8"?>
<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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<artifactId>aws-s3-update-object</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>aws-s3-update-object</name>
<description>Project demonstrating overwriting of S3 objects</description>
<parent>
<groupId>com.baeldung</groupId>
<artifactId>parent-boot-2</artifactId>
<version>0.0.1-SNAPSHOT</version>
<relativePath>../../parent-boot-2</relativePath>
</parent>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>com.amazonaws</groupId>
<artifactId>aws-java-sdk</artifactId>
<version>${aws-java-sdk-version}</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
<properties>
<aws-java-sdk-version>1.12.523</aws-java-sdk-version>
</properties>
</project>
@@ -0,0 +1,13 @@
package com.baeldung.awss3updateobject;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class AwsS3UpdateObjectApplication {
public static void main(String[] args) {
SpringApplication.run(AwsS3UpdateObjectApplication.class, args);
}
}
@@ -0,0 +1,24 @@
package com.baeldung.awss3updateobject.controller;
import com.baeldung.awss3updateobject.service.FileService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.multipart.MultipartFile;
@RestController
@RequestMapping("api/v1/file")
public class FileController {
@Autowired
FileService fileService;
@PostMapping("/upload")
public String uploadFile(@RequestParam("file") MultipartFile multipartFile) throws Exception {
return this.fileService.uploadFile(multipartFile);
}
@PostMapping("/update")
public String updateFile(@RequestParam("file") MultipartFile multipartFile, @RequestParam("filePath") String exitingFilePath) throws Exception {
return this.fileService.updateFile(multipartFile, exitingFilePath);
}
}
@@ -0,0 +1,80 @@
package com.baeldung.awss3updateobject.service;
import com.amazonaws.auth.AWSCredentials;
import com.amazonaws.auth.AWSStaticCredentialsProvider;
import com.amazonaws.auth.BasicAWSCredentials;
import com.amazonaws.regions.Regions;
import com.amazonaws.services.s3.AmazonS3;
import com.amazonaws.services.s3.AmazonS3ClientBuilder;
import com.amazonaws.services.s3.model.*;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Service;
import org.springframework.web.multipart.MultipartFile;
import javax.annotation.PostConstruct;
import java.io.IOException;
import java.io.InputStream;
import java.util.HashMap;
import java.util.Map;
@Service
public class FileService {
private static final Logger logger = LoggerFactory.getLogger(FileService.class);
public AmazonS3 amazonS3;
@Value("${aws.s3bucket}")
public String awsS3Bucket;
@PostConstruct
private void init(){
AWSCredentials credentials = new BasicAWSCredentials(
"AWS AccessKey",
"AWS secretKey"
);
this.amazonS3 = AmazonS3ClientBuilder.standard()
.withRegion(Regions.fromName("us-east-1"))
.withCredentials(new AWSStaticCredentialsProvider(credentials))
.build();
}
public String uploadFile(MultipartFile multipartFile) throws Exception {
String key = "/documents/" + multipartFile.getOriginalFilename();
return this.uploadDocument(this.awsS3Bucket, key, multipartFile);
}
public String updateFile(MultipartFile multipartFile, String key) throws Exception {
return this.uploadDocument(this.awsS3Bucket, key, multipartFile);
}
private String uploadDocument(String s3bucket, String key, MultipartFile multipartFile) throws Exception {
try {
ObjectMetadata metadata = new ObjectMetadata();
metadata.setContentType(multipartFile.getContentType());
Map<String, String> attributes = new HashMap<>();
attributes.put("document-content-size", String.valueOf(multipartFile.getSize()));
metadata.setUserMetadata(attributes);
InputStream documentStream = multipartFile.getInputStream();
PutObjectResult putObjectResult = this.amazonS3.putObject(new PutObjectRequest(s3bucket, key, documentStream, metadata));
S3Object s3Object = this.amazonS3.getObject(s3bucket, key);
logger.info("Last Modified: " + s3Object.getObjectMetadata().getLastModified());
return key;
} catch (AmazonS3Exception ex) {
if (ex.getErrorCode().equalsIgnoreCase("NoSuchBucket")) {
String msg = String.format("No bucket found with name %s", s3bucket);
throw new Exception(msg);
} else if (ex.getErrorCode().equalsIgnoreCase("AccessDenied")) {
String msg = String.format("Access denied to S3 bucket %s", s3bucket);
throw new Exception(msg);
}
throw ex;
} catch (IOException ex) {
String msg = String.format("Error saving file %s to AWS S3 bucket %s", key, s3bucket);
throw new Exception(msg);
}
}
}
@@ -0,0 +1 @@
aws.s3bucket=baeldung-documents;
@@ -0,0 +1,62 @@
package com.baeldung.awss3updateobject.controller;
import com.baeldung.awss3updateobject.service.FileService;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import org.mockito.InjectMocks;
import org.mockito.Mock;
import org.mockito.MockitoAnnotations;
import org.springframework.mock.web.MockMultipartFile;
import org.springframework.test.web.servlet.MockMvc;
import org.springframework.test.web.servlet.setup.MockMvcBuilders;
import org.springframework.web.multipart.MultipartFile;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.mockito.Mockito.*;
import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.*;
import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;
import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.content;
public class FileControllerUnitTest {
private MockMvc mockMvc;
@Mock
private FileService fileService;
@InjectMocks
private FileController fileController;
@BeforeEach
public void setUp() {
MockitoAnnotations.openMocks(this);
this.mockMvc = MockMvcBuilders.standaloneSetup(fileController).build();
}
@Test
public void givenValidMultipartFile_whenUploadedViaEndpoint_thenCorrectPathIsReturned() throws Exception {
MockMultipartFile multipartFile = new MockMultipartFile("file", "test.txt", "text/plain", "sample file content".getBytes());
String expectedResult = "File Uploaded Successfully";
when(fileService.uploadFile(multipartFile)).thenReturn(expectedResult);
mockMvc.perform(multipart("/api/v1/file/upload").file(multipartFile))
.andExpect(status().isOk())
.andExpect(content().string(expectedResult));
}
@Test
public void givenValidMultipartFileAndExistingPath_whenUpdatedViaEndpoint_thenSamePathIsReturned() throws Exception {
MockMultipartFile multipartFile = new MockMultipartFile("file", "test.txt", "text/plain", "updated file content".getBytes());
String filePath = "some/path/to/file";
String expectedResult = "File Updated Successfully";
when(fileService.updateFile(multipartFile, filePath)).thenReturn(expectedResult);
mockMvc.perform(multipart("/api/v1/file/update")
.file(multipartFile)
.param("filePath", filePath))
.andExpect(status().isOk())
.andExpect(content().string(expectedResult));
}
}

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