add java code

Author: wasin-waeosri

.gitignore

@@ -3,7 +3,6 @@ Python/.env
 Python/jupyterlab_ESG_Screener_RDP_Search.ipynb
 
 
-Java/
 Java/.idea
 Java/logs/
 Java/target/

Java/.dockerignore

@@ -0,0 +1,6 @@
+target/
+logs/
+.env
+.idea/
+README.md
+.env.example

Java/.env.example

@@ -0,0 +1,23 @@
+# Core Credentials
+RTO_USER=RTO_USER
+RTO_PASSWORD=RTO_PASSWORD
+RTO_APP_KEY=RTO_APP_KEY
+RTO_SERVICE=ELEKTRON_DD
+
+#WebSocketAPI
+RTO_WS_PORT=443
+RTO_WS_APP_ID=256
+RTO_WS_NEW_PASSWORD=
+RTO_WS_AUTH_URL=https://api.refinitiv.com:443/auth/oauth2/v1/token
+RTO_WS_DISCOVERY_URL=https://api.refinitiv.com/streaming/pricing/v1/
+RTO_WS_POSITION=443
+
+#EMA Java
+RTO_WS_RDMFIELDDICTIONARY=./etc/RDMFieldDictionary
+RTO_WS_ENUMTYPEDEF=./etc/enumtype.def
+RTO_PROXY_HOSTNAME=
+RTO_PROXY_PORT=
+RTO_PROXY_USERNAME=
+RTO_PROXY_PASSWORD=
+RTO_PROXY_DOMAIN=
+RTO_PROXY_KRB5=

Java/Dockerfile

@@ -0,0 +1,21 @@
+#Build stage.
+FROM maven:3.8.1-openjdk-11-slim AS builder
+WORKDIR /app
+COPY pom.xml .
+# Resolve Dependencies
+RUN mvn -e -B dependency:resolve
+COPY src ./src
+# Build and compile application
+RUN mvn clean -e -B package
+
+# Run stage
+FROM openjdk:11-jre-slim
+WORKDIR /app
+
+# Copy final Jar file from the builder stage
+COPY --from=builder /app/target/dotenv_Java-1.0-jar-with-dependencies.jar .
+# update PATH environment variable
+ENV USERNAME=DOCKER_CONTAINER
+
+ENTRYPOINT ["java", "-jar", "./dotenv_Java-1.0-jar-with-dependencies.jar"]
+CMD ["-ric", "/EUR="]

Java/pom.xml

@@ -0,0 +1,78 @@
+<?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>
+
+    <groupId>com.refinitiv</groupId>
+    <artifactId>dotenv_Java</artifactId>
+    <version>1.0</version>
+
+    <properties>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <maven.compiler.source>1.8</maven.compiler.source>
+        <maven.compiler.target>1.8</maven.compiler.target>
+    </properties>
+
+    <dependencies>
+
+        <!-- websocket api -->
+        <dependency>
+            <groupId>org.apache.httpcomponents</groupId>
+            <artifactId>httpclient</artifactId>
+            <version>4.5.13</version>
+        </dependency>
+        <dependency>
+            <groupId>commons-cli</groupId>
+            <artifactId>commons-cli</artifactId>
+            <version>1.4</version>
+        </dependency>
+        <dependency>
+            <groupId>org.json</groupId>
+            <artifactId>json</artifactId>
+            <version>20210307</version>
+        </dependency>
+        <dependency>
+            <groupId>com.neovisionaries</groupId>
+            <artifactId>nv-websocket-client</artifactId>
+            <version>2.14</version>
+        </dependency>
+        <!-- dotenv -->
+        <dependency>
+            <groupId>io.github.cdimascio</groupId>
+            <artifactId>dotenv-java</artifactId>
+            <version>2.2.0</version>
+        </dependency>
+    </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-assembly-plugin</artifactId>
+                <executions>
+                    <execution>
+                        <phase>package</phase>
+                        <goals>
+                            <goal>single</goal>
+                        </goals>
+                        <configuration>
+                            <archive>
+                                <manifest>
+                                    <mainClass>
+                                        <!--com.refinitiv.ema.test.TestENV-->
+                                        com.refinitiv.ws.cloud.MarketPriceRdpGwServiceDiscovery
+                                    </mainClass>
+                                </manifest>
+                            </archive>
+                            <descriptorRefs>
+                                <descriptorRef>jar-with-dependencies</descriptorRef>
+                            </descriptorRefs>
+                        </configuration>
+                    </execution>
+                </executions>
+            </plugin>
+        </plugins>
+    </build>
+
+</project>