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Merge pull request #7 from eugenp/master

Browse Source 
Updated
This commit is contained in:
Kartik Singla
2018-08-21 09:49:04 +05:30
committed by GitHub
parent 26f744b8fe cb9e1f29b5
commit b8592c463c
407 changed files with 7605 additions and 2265 deletions
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apache-avro/src/main/java/com/baeldung/avro/util/serealization/AvroDeSerealizer.java
+25 -17
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@@ -5,29 +5,37 @@ import org.apache.avro.io.DatumReader;
import org.apache.avro.io.Decoder;
import org.apache.avro.io.DecoderFactory;
import org.apache.avro.specific.SpecificDatumReader;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.IOException;
public class AvroDeSerealizer {
public AvroHttpRequest deSerealizeAvroHttpRequestJSON(byte[] data){
DatumReader<AvroHttpRequest> reader = new SpecificDatumReader<>(AvroHttpRequest.class);
Decoder decoder = null;
try {
decoder = DecoderFactory.get().jsonDecoder(AvroHttpRequest.getClassSchema(), new String(data));
return reader.read(null, decoder);
} catch (IOException e) {
return null;
}
}
private static Logger logger = LoggerFactory.getLogger(AvroDeSerealizer.class);
public AvroHttpRequest deSerealizeAvroHttpRequestBinary(byte[] data){
DatumReader<AvroHttpRequest> employeeReader = new SpecificDatumReader<>(AvroHttpRequest.class);
Decoder decoder = DecoderFactory.get().binaryDecoder(data, null);
try {
return employeeReader.read(null, decoder);
} catch (IOException e) {
public AvroHttpRequest deSerealizeAvroHttpRequestJSON(byte[] data) {
DatumReader<AvroHttpRequest> reader = new SpecificDatumReader<>(AvroHttpRequest.class);
Decoder decoder = null;
try {
decoder = DecoderFactory.get()
.jsonDecoder(AvroHttpRequest.getClassSchema(), new String(data));
return reader.read(null, decoder);
} catch (IOException e) {
logger.error("Deserialization error" + e.getMessage());
}
return null;
}
public AvroHttpRequest deSerealizeAvroHttpRequestBinary(byte[] data) {
DatumReader<AvroHttpRequest> employeeReader = new SpecificDatumReader<>(AvroHttpRequest.class);
Decoder decoder = DecoderFactory.get()
.binaryDecoder(data, null);
try {
return employeeReader.read(null, decoder);
} catch (IOException e) {
logger.error("Deserialization error" + e.getMessage());
}
return null;
}
}
}
apache-avro/src/main/java/com/baeldung/avro/util/serealization/AvroSerealizer.java
+34 -28
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@@ -3,42 +3,48 @@ package com.baeldung.avro.util.serealization;
import com.baeldung.avro.util.model.AvroHttpRequest;
import org.apache.avro.io.*;
import org.apache.avro.specific.SpecificDatumWriter;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
public class AvroSerealizer {
public byte[] serealizeAvroHttpRequestJSON(AvroHttpRequest request){
DatumWriter<AvroHttpRequest> writer = new SpecificDatumWriter<>(AvroHttpRequest.class);
byte[] data = new byte[0];
ByteArrayOutputStream stream = new ByteArrayOutputStream();
Encoder jsonEncoder = null;
try {
jsonEncoder = EncoderFactory.get().jsonEncoder(AvroHttpRequest.getClassSchema(), stream);
writer.write(request, jsonEncoder);
jsonEncoder.flush();
data = stream.toByteArray();
} catch (IOException e) {
data =null;
}
return data;
}
private static final Logger logger = LoggerFactory.getLogger(AvroSerealizer.class);
public byte[] serealizeAvroHttpRequestBinary(AvroHttpRequest request){
DatumWriter<AvroHttpRequest> writer = new SpecificDatumWriter<>(AvroHttpRequest.class);
byte[] data = new byte[0];
ByteArrayOutputStream stream = new ByteArrayOutputStream();
Encoder jsonEncoder = EncoderFactory.get().binaryEncoder(stream,null);
try {
writer.write(request, jsonEncoder);
jsonEncoder.flush();
data = stream.toByteArray();
} catch (IOException e) {
data = null;
public byte[] serealizeAvroHttpRequestJSON(AvroHttpRequest request) {
DatumWriter<AvroHttpRequest> writer = new SpecificDatumWriter<>(AvroHttpRequest.class);
byte[] data = new byte[0];
ByteArrayOutputStream stream = new ByteArrayOutputStream();
Encoder jsonEncoder = null;
try {
jsonEncoder = EncoderFactory.get()
.jsonEncoder(AvroHttpRequest.getClassSchema(), stream);
writer.write(request, jsonEncoder);
jsonEncoder.flush();
data = stream.toByteArray();
} catch (IOException e) {
logger.error("Serialization error " + e.getMessage());
}
return data;
}
return data;
}
public byte[] serealizeAvroHttpRequestBinary(AvroHttpRequest request) {
DatumWriter<AvroHttpRequest> writer = new SpecificDatumWriter<>(AvroHttpRequest.class);
byte[] data = new byte[0];
ByteArrayOutputStream stream = new ByteArrayOutputStream();
Encoder jsonEncoder = EncoderFactory.get()
.binaryEncoder(stream, null);
try {
writer.write(request, jsonEncoder);
jsonEncoder.flush();
data = stream.toByteArray();
} catch (IOException e) {
logger.error("Serialization error " + e.getMessage());
}
return data;
}
}
apache-avro/src/test/java/com/baeldung/avro/util/serealization/AvroSerealizerDeSerealizerTest.java
+39 -31
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@@ -24,8 +24,10 @@ public class AvroSerealizerDeSerealizerTest {
serealizer = new AvroSerealizer();
deSerealizer = new AvroDeSerealizer();
ClientIdentifier clientIdentifier = ClientIdentifier.newBuilder().
setHostName("localhost").setIpAddress("255.255.255.0").build();
ClientIdentifier clientIdentifier = ClientIdentifier.newBuilder()
.setHostName("localhost")
.setIpAddress("255.255.255.0")
.build();
List<CharSequence> employees = new ArrayList();
employees.add("James");
@@ -33,43 +35,49 @@ public class AvroSerealizerDeSerealizerTest {
employees.add("David");
employees.add("Han");
request = AvroHttpRequest.newBuilder().setRequestTime(01l)
.setActive(Active.YES).setClientIdentifier(clientIdentifier)
.setEmployeeNames(employees).build();
request = AvroHttpRequest.newBuilder()
.setRequestTime(01l)
.setActive(Active.YES)
.setClientIdentifier(clientIdentifier)
.setEmployeeNames(employees)
.build();
}
@After
public void tearDown() throws Exception {
}
@Test
public void WhenSerialized_UsingJSONEncoder_ObjectGetsSerialized(){
byte[] data = serealizer.serealizeAvroHttpRequestJSON(request);
assertTrue(Objects.nonNull(data));
assertTrue(data.length > 0);
}
@Test
public void WhenSerializedUsingJSONEncoder_thenObjectGetsSerialized() {
byte[] data = serealizer.serealizeAvroHttpRequestJSON(request);
assertTrue(Objects.nonNull(data));
assertTrue(data.length > 0);
}
@Test
public void WhenSerialized_UsingBinaryEncoder_ObjectGetsSerialized(){
byte[] data = serealizer.serealizeAvroHttpRequestBinary(request);
assertTrue(Objects.nonNull(data));
assertTrue(data.length > 0);
}
@Test
public void WhenSerializedUsingBinaryEncoder_thenObjectGetsSerialized() {
byte[] data = serealizer.serealizeAvroHttpRequestBinary(request);
assertTrue(Objects.nonNull(data));
assertTrue(data.length > 0);
}
@Test
public void WhenDeserialize_UsingJSONDecoder_ActualAndExpectedObjectsAreEqual(){
byte[] data = serealizer.serealizeAvroHttpRequestJSON(request);
AvroHttpRequest actualRequest = deSerealizer.deSerealizeAvroHttpRequestJSON(data);
assertEquals(actualRequest,request);
assertTrue(actualRequest.getRequestTime().equals(request.getRequestTime()));
}
@Test
public void WhenDeserializeUsingJSONDecoder_thenActualAndExpectedObjectsAreEqual() {
byte[] data = serealizer.serealizeAvroHttpRequestJSON(request);
AvroHttpRequest actualRequest = deSerealizer.deSerealizeAvroHttpRequestJSON(data);
assertEquals(actualRequest, request);
assertTrue(actualRequest.getRequestTime()
.equals(request.getRequestTime()));
}
@Test
public void WhenDeserialize_UsingBinaryecoder_ActualAndExpectedObjectsAreEqual(){
byte[] data = serealizer.serealizeAvroHttpRequestBinary(request);
AvroHttpRequest actualRequest = deSerealizer.deSerealizeAvroHttpRequestBinary(data);
assertEquals(actualRequest,request);
assertTrue(actualRequest.getRequestTime().equals(request.getRequestTime()));
}
@Test
public void WhenDeserializeUsingBinaryecoder_thenActualAndExpectedObjectsAreEqual() {
byte[] data = serealizer.serealizeAvroHttpRequestBinary(request);
AvroHttpRequest actualRequest = deSerealizer.deSerealizeAvroHttpRequestBinary(data);
assertEquals(actualRequest, request);
assertTrue(actualRequest.getRequestTime()
.equals(request.getRequestTime()));
}
}
apache-cxf/pom.xml
+2 -1
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@@ -1,5 +1,5 @@
<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">
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.baeldung</groupId>
<artifactId>apache-cxf</artifactId>
@@ -17,6 +17,7 @@
<module>cxf-spring</module>
<module>cxf-jaxrs-implementation</module>
<module>cxf-aegis</module>
<module>sse-jaxrs</module>
</modules>
<build>
apache-cxf/sse-jaxrs/pom.xml
+21
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@@ -0,0 +1,21 @@
<?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>sse-jaxrs</artifactId>
<packaging>pom</packaging>
<parent>
<groupId>com.baeldung</groupId>
<artifactId>apache-cxf</artifactId>
<version>0.0.1-SNAPSHOT</version>
</parent>
<modules>
<module>sse-jaxrs-server</module>
<module>sse-jaxrs-client</module>
</modules>
</project>
apache-cxf/sse-jaxrs/sse-jaxrs-client/pom.xml
+62
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@@ -0,0 +1,62 @@
<?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>
<parent>
<groupId>com.baeldung</groupId>
<artifactId>sse-jaxrs</artifactId>
<version>0.0.1-SNAPSHOT</version>
</parent>
<artifactId>sse-jaxrs-client</artifactId>
<properties>
<cxf-version>3.2.0</cxf-version>
</properties>
<build>
<plugins>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>exec-maven-plugin</artifactId>
<version>1.6.0</version>
<executions>
<execution>
<id>singleEvent</id>
<goals>
<goal>java</goal>
</goals>
<configuration>
<mainClass>com.baeldung.sse.jaxrs.client.SseClientApp</mainClass>
</configuration>
</execution>
<execution>
<id>broadcast</id>
<goals>
<goal>java</goal>
</goals>
<configuration>
<mainClass>com.baeldung.sse.jaxrs.client.SseClientBroadcastApp</mainClass>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
<dependencies>
<dependency>
<groupId>org.apache.cxf</groupId>
<artifactId>cxf-rt-rs-client</artifactId>
<version>${cxf-version}</version>
</dependency>
<dependency>
<groupId>org.apache.cxf</groupId>
<artifactId>cxf-rt-rs-sse</artifactId>
<version>${cxf-version}</version>
</dependency>
</dependencies>
</project>
apache-cxf/sse-jaxrs/sse-jaxrs-client/src/main/java/com/baeldung/sse/jaxrs/client/SseClientApp.java
+48
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@@ -0,0 +1,48 @@
package com.baeldung.sse.jaxrs.client;
import javax.ws.rs.client.Client;
import javax.ws.rs.client.ClientBuilder;
import javax.ws.rs.client.WebTarget;
import javax.ws.rs.sse.InboundSseEvent;
import javax.ws.rs.sse.SseEventSource;
import java.util.function.Consumer;
public class SseClientApp {
private static final String url = "http://127.0.0.1:9080/sse-jaxrs-server/sse/stock/prices";
public static void main(String... args) throws Exception {
Client client = ClientBuilder.newClient();
WebTarget target = client.target(url);
try (SseEventSource eventSource = SseEventSource.target(target).build()) {
eventSource.register(onEvent, onError, onComplete);
eventSource.open();
//Consuming events for one hour
Thread.sleep(60 * 60 * 1000);
} catch (InterruptedException e) {
e.printStackTrace();
}
client.close();
System.out.println("End");
}
// A new event is received
private static Consumer<InboundSseEvent> onEvent = (inboundSseEvent) -> {
String data = inboundSseEvent.readData();
System.out.println(data);
};
//Error
private static Consumer<Throwable> onError = (throwable) -> {
throwable.printStackTrace();
};
//Connection close and there is nothing to receive
private static Runnable onComplete = () -> {
System.out.println("Done!");
};
}
apache-cxf/sse-jaxrs/sse-jaxrs-client/src/main/java/com/baeldung/sse/jaxrs/client/SseClientBroadcastApp.java
+52
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@@ -0,0 +1,52 @@
package com.baeldung.sse.jaxrs.client;
import javax.ws.rs.client.Client;
import javax.ws.rs.client.ClientBuilder;
import javax.ws.rs.client.WebTarget;
import javax.ws.rs.sse.InboundSseEvent;
import javax.ws.rs.sse.SseEventSource;
import java.util.concurrent.TimeUnit;
import java.util.function.Consumer;
public class SseClientBroadcastApp {
private static final String subscribeUrl = "http://localhost:9080/sse-jaxrs-server/sse/stock/subscribe";
public static void main(String... args) throws Exception {
Client client = ClientBuilder.newClient();
WebTarget target = client.target(subscribeUrl);
try (final SseEventSource eventSource = SseEventSource.target(target)
.reconnectingEvery(5, TimeUnit.SECONDS)
.build()) {
eventSource.register(onEvent, onError, onComplete);
eventSource.open();
System.out.println("Wainting for incoming event ...");
//Consuming events for one hour
Thread.sleep(60 * 60 * 1000);
} catch (InterruptedException e) {
e.printStackTrace();
}
client.close();
System.out.println("End");
}
// A new event is received
private static Consumer<InboundSseEvent> onEvent = (inboundSseEvent) -> {
String data = inboundSseEvent.readData();
System.out.println(data);
};
//Error
private static Consumer<Throwable> onError = (throwable) -> {
throwable.printStackTrace();
};
//Connection close and there is nothing to receive
private static Runnable onComplete = () -> {
System.out.println("Done!");
};
}
apache-cxf/sse-jaxrs/sse-jaxrs-client/src/main/resources/logback.xml
+13
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@@ -0,0 +1,13 @@
<?xml version="1.0" encoding="UTF-8"?>
<configuration>
<appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
<encoder>
<pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n
</pattern>
</encoder>
</appender>
<root level="INFO">
<appender-ref ref="STDOUT" />
</root>
</configuration>
apache-cxf/sse-jaxrs/sse-jaxrs-server/pom.xml
+85
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@@ -0,0 +1,85 @@
<?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>
<parent>
<groupId>com.baeldung</groupId>
<artifactId>sse-jaxrs</artifactId>
<version>0.0.1-SNAPSHOT</version>
</parent>
<artifactId>sse-jaxrs-server</artifactId>
<packaging>war</packaging>
<properties>
<liberty-maven-plugin.version>2.4.2</liberty-maven-plugin.version>
<failOnMissingWebXml>false</failOnMissingWebXml>
<openliberty-version>18.0.0.2</openliberty-version>
</properties>
<build>
<finalName>${artifactId}</finalName>
<plugins>
<plugin>
<groupId>net.wasdev.wlp.maven.plugins</groupId>
<artifactId>liberty-maven-plugin</artifactId>
<version>${liberty-maven-plugin.version}</version>
<configuration>
<assemblyArtifact>
<groupId>io.openliberty</groupId>
<artifactId>openliberty-webProfile8</artifactId>
<version>${openliberty-version}</version>
<type>zip</type>
</assemblyArtifact>
<installAppPackages>project</installAppPackages>
<looseApplication>true</looseApplication>
<configFile>src/main/liberty/config/server.xml</configFile>
</configuration>
<executions>
<execution>
<id>install-server</id>
<phase>prepare-package</phase>
<goals>
<goal>install-server</goal>
<goal>create-server</goal>
<goal>install-feature</goal>
</goals>
</execution>
<execution>
<id>install-apps</id>
<phase>package</phase>
<goals>
<goal>install-apps</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
<dependencies>
<dependency>
<groupId>javax.ws.rs</groupId>
<artifactId>javax.ws.rs-api</artifactId>
<version>2.1</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.enterprise</groupId>
<artifactId>cdi-api</artifactId>
<version>2.0</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.json.bind</groupId>
<artifactId>javax.json.bind-api</artifactId>
<version>1.0</version>
<scope>provided</scope>
</dependency>
</dependencies>
</project>
apache-cxf/sse-jaxrs/sse-jaxrs-server/src/main/java/com/baeldung/sse/jaxrs/AppConfig.java
+8
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@@ -0,0 +1,8 @@
package com.baeldung.sse.jaxrs;
import javax.ws.rs.ApplicationPath;
import javax.ws.rs.core.Application;
@ApplicationPath("sse")
public class AppConfig extends Application {
}
apache-cxf/sse-jaxrs/sse-jaxrs-server/src/main/java/com/baeldung/sse/jaxrs/SseResource.java
+119
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@@ -0,0 +1,119 @@
package com.baeldung.sse.jaxrs;
import javax.enterprise.context.ApplicationScoped;
import javax.inject.Inject;
import javax.ws.rs.*;
import javax.ws.rs.core.Context;
import javax.ws.rs.core.HttpHeaders;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.sse.OutboundSseEvent;
import javax.ws.rs.sse.Sse;
import javax.ws.rs.sse.SseBroadcaster;
import javax.ws.rs.sse.SseEventSink;
@ApplicationScoped
@Path("stock")
public class SseResource {
@Inject
private StockService stockService;
private Sse sse;
private SseBroadcaster sseBroadcaster;
private OutboundSseEvent.Builder eventBuilder;
@Context
public void setSse(Sse sse) {
this.sse = sse;
this.eventBuilder = sse.newEventBuilder();
this.sseBroadcaster = sse.newBroadcaster();
}
@GET
@Path("prices")
@Produces("text/event-stream")
public void getStockPrices(@Context SseEventSink sseEventSink,
@HeaderParam(HttpHeaders.LAST_EVENT_ID_HEADER) @DefaultValue("-1") int lastReceivedId) {
int lastEventId = 1;
if (lastReceivedId != -1) {
lastEventId = ++lastReceivedId;
}
boolean running = true;
while (running) {
Stock stock = stockService.getNextTransaction(lastEventId);
if (stock != null) {
OutboundSseEvent sseEvent = this.eventBuilder
.name("stock")
.id(String.valueOf(lastEventId))
.mediaType(MediaType.APPLICATION_JSON_TYPE)
.data(Stock.class, stock)
.reconnectDelay(3000)
.comment("price change")
.build();
sseEventSink.send(sseEvent);
lastEventId++;
}
//Simulate connection close
if (lastEventId % 5 == 0) {
sseEventSink.close();
break;
}
try {
//Wait 5 seconds
Thread.sleep(5 * 1000);
} catch (InterruptedException ex) {
// ...
}
//Simulatae a while boucle break
running = lastEventId <= 2000;
}
sseEventSink.close();
}
@GET
@Path("subscribe")
@Produces(MediaType.SERVER_SENT_EVENTS)
public void listen(@Context SseEventSink sseEventSink) {
sseEventSink.send(sse.newEvent("Welcome !"));
this.sseBroadcaster.register(sseEventSink);
sseEventSink.send(sse.newEvent("You are registred !"));
}
@GET
@Path("publish")
public void broadcast() {
Runnable r = new Runnable() {
@Override
public void run() {
int lastEventId = 0;
boolean running = true;
while (running) {
lastEventId++;
Stock stock = stockService.getNextTransaction(lastEventId);
if (stock != null) {
OutboundSseEvent sseEvent = eventBuilder
.name("stock")
.id(String.valueOf(lastEventId))
.mediaType(MediaType.APPLICATION_JSON_TYPE)
.data(Stock.class, stock)
.reconnectDelay(3000)
.comment("price change")
.build();
sseBroadcaster.broadcast(sseEvent);
}
try {
//Wait 5 seconds
Thread.currentThread().sleep(5 * 1000);
} catch (InterruptedException ex) {
// ...
}
//Simulatae a while boucle break
running = lastEventId <= 2000;
}
}
};
new Thread(r).start();
}
}
apache-cxf/sse-jaxrs/sse-jaxrs-server/src/main/java/com/baeldung/sse/jaxrs/Stock.java
+50
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@@ -0,0 +1,50 @@
package com.baeldung.sse.jaxrs;
import java.math.BigDecimal;
import java.time.LocalDateTime;
public class Stock {
private Integer id;
private String name;
private BigDecimal price;
LocalDateTime dateTime;
public Stock(Integer id, String name, BigDecimal price, LocalDateTime dateTime) {
this.id = id;
this.name = name;
this.price = price;
this.dateTime = dateTime;
}
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public BigDecimal getPrice() {
return price;
}
public void setPrice(BigDecimal price) {
this.price = price;
}
public LocalDateTime getDateTime() {
return dateTime;
}
public void setDateTime(LocalDateTime dateTime) {
this.dateTime = dateTime;
}
}
apache-cxf/sse-jaxrs/sse-jaxrs-server/src/main/java/com/baeldung/sse/jaxrs/StockService.java
+78
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@@ -0,0 +1,78 @@
package com.baeldung.sse.jaxrs;
import javax.enterprise.context.ApplicationScoped;
import javax.enterprise.context.Initialized;
import javax.enterprise.event.Event;
import javax.enterprise.event.Observes;
import javax.inject.Inject;
import javax.inject.Named;
import java.math.BigDecimal;
import java.math.RoundingMode;
import java.time.LocalDateTime;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.Random;
import java.util.concurrent.atomic.AtomicInteger;
@ApplicationScoped
@Named
public class StockService {
private static final BigDecimal UP = BigDecimal.valueOf(1.05f);
private static final BigDecimal DOWN = BigDecimal.valueOf(0.95f);
List<String> stockNames = Arrays.asList("GOOG", "IBM", "MS", "GOOG", "YAHO");
List<Stock> stocksDB = new ArrayList<>();
private AtomicInteger counter = new AtomicInteger(0);
public void init(@Observes @Initialized(ApplicationScoped.class) Object init) {
//Open price
System.out.println("@Start Init ...");
stockNames.forEach(stockName -> {
stocksDB.add(new Stock(counter.incrementAndGet(), stockName, generateOpenPrice(), LocalDateTime.now()));
});
Runnable runnable = new Runnable() {
@Override
public void run() {
//Simulate Change price and put every x seconds
while (true) {
int indx = new Random().nextInt(stockNames.size());
String stockName = stockNames.get(indx);
BigDecimal price = getLastPrice(stockName);
BigDecimal newprice = changePrice(price);
Stock stock = new Stock(counter.incrementAndGet(), stockName, newprice, LocalDateTime.now());
stocksDB.add(stock);
int r = new Random().nextInt(30);
try {
Thread.currentThread().sleep(r*1000);
} catch (InterruptedException ex) {
// ...
}
}
}
};
new Thread(runnable).start();
System.out.println("@End Init ...");
}
public Stock getNextTransaction(Integer lastEventId) {
return stocksDB.stream().filter(s -> s.getId().equals(lastEventId)).findFirst().orElse(null);
}
BigDecimal generateOpenPrice() {
float min = 70;
float max = 120;
return BigDecimal.valueOf(min + new Random().nextFloat() * (max - min)).setScale(4,RoundingMode.CEILING);
}
BigDecimal changePrice(BigDecimal price) {
return Math.random() >= 0.5 ? price.multiply(UP).setScale(4,RoundingMode.CEILING) : price.multiply(DOWN).setScale(4,RoundingMode.CEILING);
}
private BigDecimal getLastPrice(String stockName) {
return stocksDB.stream().filter(stock -> stock.getName().equals(stockName)).findFirst().get().getPrice();
}
}
apache-cxf/sse-jaxrs/sse-jaxrs-server/src/main/liberty/config/server.xml
+7
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@@ -0,0 +1,7 @@
<server description="OpenLiberty Server">
<featureManager>
<feature>jaxrs-2.1</feature>
<feature>cdi-2.0</feature>
</featureManager>
<httpEndpoint httpPort="9080" httpsPort="9443" id="defaultHttpEndpoint" host="*"/>
</server>
apache-cxf/sse-jaxrs/sse-jaxrs-server/src/main/resources/META-INF/beans.xml
+6
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@@ -0,0 +1,6 @@
<beans xmlns="http://xmlns.jcp.org/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee
http://xmlns.jcp.org/xml/ns/javaee/beans_2_0.xsd"
bean-discovery-mode="all">
</beans>
apache-cxf/sse-jaxrs/sse-jaxrs-server/src/main/resources/logback.xml
+13
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@@ -0,0 +1,13 @@
<?xml version="1.0" encoding="UTF-8"?>
<configuration>
<appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
<encoder>
<pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n
</pattern>
</encoder>
</appender>
<root level="INFO">
<appender-ref ref="STDOUT" />
</root>
</configuration>
apache-cxf/sse-jaxrs/sse-jaxrs-server/src/main/webapp/WEB-INF/web.xml
+11
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@@ -0,0 +1,11 @@
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd"
version="4.0">
<display-name>Hello Servlet</display-name>
<welcome-file-list>
<welcome-file>index.html</welcome-file>
</welcome-file-list>
</web-app>
apache-cxf/sse-jaxrs/sse-jaxrs-server/src/main/webapp/index.html
+1
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@@ -0,0 +1 @@
index
apache-cxf/sse-jaxrs/sse-jaxrs-server/src/main/webapp/sse-broadcast.html
+38
View File
@@ -0,0 +1,38 @@
<!DOCTYPE html>
<html>
<head>
<title>Server-Sent Event Broadcasting</title>
</head>
<body>
<h2>Stock prices :</h2>
<div>
<ul id="data">
</ul>
</div>
<script>
var source = new EventSource('sse/stock/subscribe');
source.onopen = function(event) {
console.log(event);
};
source.addEventListener("stock", function(event) {
append(event.data);
}, false);
source.onmessage = function(event) {
append(event.data);
};
source.onerror = function(event) {
console.log(event);
};
function append(data) {
var ul = document.getElementById("data");
var li = document.createElement("li");
li.appendChild(document.createTextNode(data));
ul.insertBefore(li, ul.childNodes[0]);
};
</script>
</body>
</html>
apache-cxf/sse-jaxrs/sse-jaxrs-server/src/main/webapp/sse.html
+38
View File
@@ -0,0 +1,38 @@
<!DOCTYPE html>
<html>
<head>
<title>Server-Sent Event</title>
</head>
<body>
<h2>Stock prices :</h2>
<div>
<ul id="data">
</ul>
</div>
<script>
var source = new EventSource('sse/stock/prices');
source.onopen = function(event) {
console.log(event);
};
source.addEventListener("stock", function(event) {
append(event.data);
}, false);
source.onmessage = function(event) {
append(event.data);
};
source.onerror = function(event) {
console.log(event);
};
function append(data) {
var ul = document.getElementById("data");
var li = document.createElement("li");
li.appendChild(document.createTextNode(data));
ul.insertBefore(li, ul.childNodes[0]);
};
</script>
</body>
</html>
aws/pom.xml
+1 -1
View File
@@ -137,7 +137,7 @@
<aws-lambda-java-core.version>1.1.0</aws-lambda-java-core.version>
<gson.version>2.8.0</gson.version>
<aws-java-sdk.version>1.11.290</aws-java-sdk.version>
<mockito-core.version>2.8.9</mockito-core.version>
<mockito-core.version>2.21.0</mockito-core.version>
<assertj-core.version>3.8.0</assertj-core.version>
<dynamodblocal.version>1.11.86</dynamodblocal.version>
<dynamodblocal.repository.url>https://s3-us-west-2.amazonaws.com/dynamodb-local/release</dynamodblocal.repository.url>
core-java-8/README.md
-4
View File
@@ -14,7 +14,6 @@
- [Guide to Java 8 groupingBy Collector](http://www.baeldung.com/java-groupingby-collector)
- [Strategy Design Pattern in Java 8](http://www.baeldung.com/java-strategy-pattern)
- [Java 8 and Infinite Streams](http://www.baeldung.com/java-inifinite-streams)
- [String Operations with Java Streams](http://www.baeldung.com/java-stream-operations-on-strings)
- [Exceptions in Java 8 Lambda Expressions](http://www.baeldung.com/java-lambda-exceptions)
- [Java 8 Stream findFirst() vs. findAny()](http://www.baeldung.com/java-stream-findfirst-vs-findany)
- [Guide to Java 8 Comparator.comparing()](http://www.baeldung.com/java-8-comparator-comparing)
@@ -34,13 +33,11 @@
- [Copy a File with Java](http://www.baeldung.com/java-copy-file)
- [Static and Default Methods in Interfaces in Java](http://www.baeldung.com/java-static-default-methods)
- [Iterable to Stream in Java](http://www.baeldung.com/java-iterable-to-stream)
- [Converting String to Stream of chars](http://www.baeldung.com/java-string-to-stream)
- [How to Iterate Over a Stream With Indices](http://www.baeldung.com/java-stream-indices)
- [Efficient Word Frequency Calculator in Java](http://www.baeldung.com/java-word-frequency)
- [Primitive Type Streams in Java 8](http://www.baeldung.com/java-8-primitive-streams)
- [Fail-Safe Iterator vs Fail-Fast Iterator](http://www.baeldung.com/java-fail-safe-vs-fail-fast-iterator)
- [Shuffling Collections In Java](http://www.baeldung.com/java-shuffle-collection)
- [Java 8 StringJoiner](http://www.baeldung.com/java-string-joiner)
- [Introduction to Spliterator in Java](http://www.baeldung.com/java-spliterator)
- [Java 8 Math New Methods](http://www.baeldung.com/java-8-math)
- [Overview of Java Built-in Annotations](http://www.baeldung.com/java-default-annotations)
@@ -54,7 +51,6 @@
- [Java 8 Unsigned Arithmetic Support](http://www.baeldung.com/java-unsigned-arithmetic)
- [How to Get the Start and the End of a Day using Java](http://www.baeldung.com/java-day-start-end)
- [Generalized Target-Type Inference in Java](http://www.baeldung.com/java-generalized-target-type-inference)
- [Image to Base64 String Conversion](http://www.baeldung.com/java-base64-image-string)
- [Calculate Age in Java](http://www.baeldung.com/java-get-age)
- [Copy a List to Another List in Java](http://www.baeldung.com/java-copy-list-to-another)
- [Increment Date in Java](http://www.baeldung.com/java-increment-date)
core-java-9/README.md
-1
View File
@@ -17,7 +17,6 @@
- [Java 9 Reactive Streams](http://www.baeldung.com/java-9-reactive-streams)
- [How to Get All Dates Between Two Dates?](http://www.baeldung.com/java-between-dates)
- [Java 9 java.util.Objects Additions](http://www.baeldung.com/java-9-objects-new)
- [Compact Strings in Java 9](http://www.baeldung.com/java-9-compact-string)
- [Convert Date to LocalDate or LocalDateTime and Back](http://www.baeldung.com/java-date-to-localdate-and-localdatetime)
- [Java 9 Variable Handles Demistyfied](http://www.baeldung.com/java-variable-handles)
- [Exploring the New HTTP Client in Java 9](http://www.baeldung.com/java-9-http-client)
core-java-9/src/main/java/com/baeldung/java9/rangedates/DatesCollectionIteration.java
+24
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@@ -0,0 +1,24 @@
package com.baeldung.java9.rangedates;
import java.util.Collection;
import java.util.Date;
public class DatesCollectionIteration {
public void iteratingRangeOfDatesJava7(Collection<Date> dates) {
for (Date date : dates) {
processDate(date);
}
}
public void iteratingRangeOfDatesJava8(Collection<Date> dates) {
dates.stream()
.forEach(this::processDate);
}
private void processDate(Date date) {
System.out.println(date);
}
}
core-java-9/src/main/java/com/baeldung/java9/rangedates/RangeDatesIteration.java
+43
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@@ -0,0 +1,43 @@
package com.baeldung.java9.rangedates;
import java.time.LocalDate;
import java.util.Calendar;
import java.util.Date;
public class RangeDatesIteration {
public void iterateBetweenDatesJava9(LocalDate startDate, LocalDate endDate) {
startDate.datesUntil(endDate)
.forEach(this::processDate);
}
public void iterateBetweenDatesJava8(LocalDate start, LocalDate end) {
for (LocalDate date = start; date.isBefore(end); date = date.plusDays(1)) {
processDate(date);
}
}
public void iterateBetweenDatesJava7(Date start, Date end) {
Date current = start;
while (current.before(end)) {
processDate(current);
Calendar calendar = Calendar.getInstance();
calendar.setTime(current);
calendar.add(Calendar.DATE, 1);
current = calendar.getTime();
}
}
private void processDate(LocalDate date) {
System.out.println(date);
}
private void processDate(Date date) {
System.out.println(date);
}
}
core-java-9/src/test/java/com/baeldung/java9/rangedates/DatesCollectionIterationUnitTest.java
+61
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@@ -0,0 +1,61 @@
package com.baeldung.java9.rangedates;
import java.time.LocalDate;
import java.time.ZoneId;
import java.time.temporal.ChronoUnit;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.Collection;
import java.util.Date;
import java.util.List;
import java.util.stream.Collectors;
import org.junit.Test;
public class DatesCollectionIterationUnitTest {
private Collection<LocalDate> localDates = LocalDate.now()
.datesUntil(LocalDate.now()
.plus(10L, ChronoUnit.DAYS))
.collect(Collectors.toList());
private Collection<Date> dates = localDates.stream()
.map(localDate -> Date.from(localDate.atStartOfDay(ZoneId.systemDefault())
.toInstant()))
.collect(Collectors.toList());
@Test
public void givenIteratingListOfDatesJava7_WhenStartTodayAndEnding10DaysAhead() {
DatesCollectionIteration iterateInColleciton = new DatesCollectionIteration();
Calendar today = Calendar.getInstance();
Calendar next10Ahead = (Calendar) today.clone();
next10Ahead.add(Calendar.DATE, 10);
iterateInColleciton.iteratingRangeOfDatesJava7(createRangeDates(today.getTime(), next10Ahead.getTime()));
}
@Test
public void givenIteratingListOfDatesJava8_WhenStartTodayAndEnd10DaysAhead() {
DatesCollectionIteration iterateInColleciton = new DatesCollectionIteration();
iterateInColleciton.iteratingRangeOfDatesJava8(dates);
}
private List<Date> createRangeDates(Date start, Date end) {
List<Date> dates = new ArrayList<>();
Date current = start;
while (current.before(end)) {
dates.add(current);
Calendar calendar = Calendar.getInstance();
calendar.setTime(current);
calendar.add(Calendar.DATE, 1);
current = calendar.getTime();
}
return dates;
}
}
core-java-9/src/test/java/com/baeldung/java9/rangedates/RangeDatesIterationUnitTest.java
+48
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@@ -0,0 +1,48 @@
package com.baeldung.java9.rangedates;
import java.time.LocalDate;
import java.time.temporal.ChronoUnit;
import java.util.Calendar;
import java.util.Date;
import org.junit.Test;
public class RangeDatesIterationUnitTest {
@Test
public void givenIterateBetweenDatesJava9_WhenStartDateAsTodayAndEndDateAs10DaysAhead() {
LocalDate start = LocalDate.now();
LocalDate end = start.plus(10L, ChronoUnit.DAYS);
RangeDatesIteration iteration = new RangeDatesIteration();
iteration.iterateBetweenDatesJava9(start, end);
}
@Test
public void givenIterateBetweenDatesJava8_WhenStartDateAsTodayAndEndDateAs10DaysAhead() {
LocalDate start = LocalDate.now();
LocalDate end = start.plus(10L, ChronoUnit.DAYS);
RangeDatesIteration iteration = new RangeDatesIteration();
iteration.iterateBetweenDatesJava8(start, end);
}
@Test
public void givenIterateBetweenDatesJava7_WhenStartDateAsTodayAndEndDateAs10DaysAhead() {
Calendar today = Calendar.getInstance();
Calendar calendar = Calendar.getInstance();
calendar.clear();
calendar.set(today.get(Calendar.YEAR), today.get(Calendar.MONTH), today.get(Calendar.DATE));
Date start = calendar.getTime();
calendar.add(Calendar.DATE, 10);
Date end = calendar.getTime();
RangeDatesIteration iteration = new RangeDatesIteration();
iteration.iterateBetweenDatesJava7(start, end);
}
}
core-java-collections/README.md
+1
View File
@@ -36,3 +36,4 @@
- [Remove the First Element from a List](http://www.baeldung.com/java-remove-first-element-from-list)
- [How to Convert List to Map in Java](http://www.baeldung.com/java-list-to-map)
- [Initializing HashSet at the Time of Construction](http://www.baeldung.com/java-initialize-hashset)
- [Removing the First Element of an Array](https://www.baeldung.com/java-array-remove-first-element)
core-java-collections/pom.xml
+13 -1
View File
@@ -53,15 +53,27 @@
<version>${junit.platform.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.openjdk.jmh</groupId>
<artifactId>jmh-core</artifactId>
<version>${openjdk.jmh.version}</version>
</dependency>
<dependency>
<groupId>org.openjdk.jmh</groupId>
<artifactId>jmh-generator-annprocess</artifactId>
<version>${openjdk.jmh.version}</version>
</dependency>
</dependencies>
<properties>
<openjdk.jmh.version>1.19</openjdk.jmh.version>
<junit.platform.version>1.2.0</junit.platform.version>
<commons-lang3.version>3.5</commons-lang3.version>
<commons-collections4.version>4.1</commons-collections4.version>
<collections-generic.version>4.01</collections-generic.version>
<avaitility.version>1.7.0</avaitility.version>
<assertj.version>3.6.1</assertj.version>
<eclipse.collections.version>9.2.0</eclipse.collections.version>
<eclipse.collections.version>7.1.0</eclipse.collections.version>
</properties>
</project>

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