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feat: Set up project structure
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‎.editorconfig‎

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# EditorConfig is awesome: https://EditorConfig.org
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# top-most EditorConfig file
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root = true
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[*]
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indent_style = space
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indent_size = 2
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end_of_line = lf
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charset = utf-8
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trim_trailing_whitespace = false
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insert_final_newline = false

‎.gitignore‎

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# Ignore target directories
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**/target/
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# Ignore Maven wrapper files
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**/.mvn/wrapper/maven-wrapper.jar
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# Ignore IntelliJ IDEA project files
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**/.idea/
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**/*.iml
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# Ignore Eclipse project files
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**/.project
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**/.classpath
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**/.settings/
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# Ignore build directories
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**/build/
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# Ignore log files
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**/*.log
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# Ignore temporary files
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**/*.tmp
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**/*.swp
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**/*.swo
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# Ignore OS generated files
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.DS_Store
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Thumbs.db

‎README.md‎

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# gRPC e GraphQL Setup
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- Este repositório contém uma demonstração de como utilizar gRPC e GraphQL em aplicações Java. A seguir, estão os temas abordados:
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## Demonstração de gRPC
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- Exploramos o funcionamento do gRPC, um framework de comunicação de alto desempenho que utiliza HTTP/2 e Protobuf para serialização de dados.
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## Aplicação com Spring Boot
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- Criamos uma aplicação utilizando Spring Boot para implementar serviços gRPC. O Spring Boot facilita a configuração e a criação de aplicações Java.
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## Aplicação com Quarkus
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- Desenvolvemos uma aplicação utilizando Quarkus, um framework Java nativo para Kubernetes, que permite a criação de microserviços de alta performance com gRPC.
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## Serviço Agregador com GraphQL
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- Por fim, criamos um serviço agregador que se comunica com os serviços gRPC e serve os dados utilizando GraphQL. O GraphQL oferece uma maneira flexível e eficiente de consultar e manipular dados.
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<br>
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> Este repositório serve como um guia para entender e implementar gRPC e GraphQL em suas aplicações Java.

‎gRPC-demo-setup/java-grpc-fiap-demo/.gitignore‎

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target/
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!.mvn/wrapper/maven-wrapper.jar
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!**/src/main/**/target/
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!**/src/test/**/target/
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### IntelliJ IDEA ###
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.idea/modules.xml
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.idea/jarRepositories.xml
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.idea/compiler.xml
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.idea/libraries/
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*.iws
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*.iml
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*.ipr
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### Eclipse ###
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.apt_generated
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.classpath
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.factorypath
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.project
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.settings
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.springBeans
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.sts4-cache
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### NetBeans ###
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/nbproject/private/
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/nbbuild/
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/dist/
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/nbdist/
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/.nb-gradle/
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build/
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!**/src/main/**/build/
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!**/src/test/**/build/
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### VS Code ###
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.vscode/
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### Mac OS ###
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.DS_Store

‎gRPC-demo-setup/java-grpc-fiap-demo/pom.xml‎

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<?xml version="1.0" encoding="UTF-8"?>
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<project xmlns="http://maven.apache.org/POM/4.0.0"
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<groupId>dev.ghlima</groupId>
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<artifactId>java-grpc-fiap-demo</artifactId>
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<version>1.0-SNAPSHOT</version>
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<properties>
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<maven.compiler.source>21</maven.compiler.source>
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<maven.compiler.target>21</maven.compiler.target>
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<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
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<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
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<grpc.version>1.68.1</grpc.version>
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<protoc.version>3.25.1</protoc.version>
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<logback.version>1.5.6</logback.version>
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<jackson.version>2.17.2</jackson.version>
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<tomcat.annotations.version>6.0.53</tomcat.annotations.version>
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<os.maven.plugin.version>1.7.1</os.maven.plugin.version>
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<protobuf.maven.plugin.version>0.6.1</protobuf.maven.plugin.version>
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<junit.version>5.10.3</junit.version>
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<surefire.version>3.3.1</surefire.version>
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</properties>
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<dependencies>
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<!-- grpc / proto related dependencies -->
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<dependency>
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<groupId>io.grpc</groupId>
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<artifactId>grpc-netty-shaded</artifactId>
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<version>${grpc.version}</version>
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</dependency>
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<dependency>
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<groupId>io.grpc</groupId>
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<artifactId>grpc-protobuf</artifactId>
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<version>${grpc.version}</version>
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</dependency>
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<dependency>
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<groupId>io.grpc</groupId>
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<artifactId>grpc-stub</artifactId>
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<version>${grpc.version}</version>
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</dependency>
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<!-- necessary for Java 9+ -->
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<dependency>
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<groupId>org.apache.tomcat</groupId>
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<artifactId>annotations-api</artifactId>
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<version>${tomcat.annotations.version}</version>
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<scope>provided</scope>
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</dependency>
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<!-- logback -->
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<dependency>
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<groupId>ch.qos.logback</groupId>
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<artifactId>logback-classic</artifactId>
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<version>${logback.version}</version>
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</dependency>
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<!-- Jackson lib for a performance test -->
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<dependency>
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<groupId>com.fasterxml.jackson.core</groupId>
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<artifactId>jackson-databind</artifactId>
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<version>${jackson.version}</version>
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</dependency>
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</dependencies>
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<build>
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<extensions>
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<extension>
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<groupId>kr.motd.maven</groupId>
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<artifactId>os-maven-plugin</artifactId>
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<version>${os.maven.plugin.version}</version>
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</extension>
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</extensions>
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<plugins>
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<plugin>
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<groupId>org.apache.maven.plugins</groupId>
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<artifactId>maven-compiler-plugin</artifactId>
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<configuration>
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<source>21</source>
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<target>21</target>
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</configuration>
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</plugin>
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<plugin>
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<groupId>org.apache.maven.plugins</groupId>
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<artifactId>maven-surefire-plugin</artifactId>
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<version>${surefire.version}</version>
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</plugin>
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<plugin>
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<groupId>org.xolstice.maven.plugins</groupId>
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<artifactId>protobuf-maven-plugin</artifactId>
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<version>${protobuf.maven.plugin.version}</version>
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<configuration>
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<protocArtifact>com.google.protobuf:protoc:${protoc.version}:exe:${os.detected.classifier}
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</protocArtifact>
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<pluginId>grpc-java</pluginId>
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<pluginArtifact>io.grpc:protoc-gen-grpc-java:${grpc.version}:exe:${os.detected.classifier}
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</pluginArtifact>
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<protoSourceRoot>
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${basedir}/src/main/proto/
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</protoSourceRoot>
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</configuration>
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<executions>
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<execution>
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<goals>
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<goal>compile</goal>
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<goal>compile-custom</goal>
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</goals>
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</execution>
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</executions>
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</plugin>
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</plugins>
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</build>
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</project>

‎gRPC-demo-setup/java-grpc-fiap-demo/src/main/java/dev/ghlima/Demo.java‎

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package dev.ghlima;
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import dev.ghlima.veiculo.Veiculo;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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public class Demo {
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private static final Logger log = LoggerFactory.getLogger(Demo.class);
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public static void main(String[] args) {
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var veiculo = Veiculo.newBuilder()
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.setId(1)
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.setAno(2021)
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.setModelo("Fusca")
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.setMarca("Volkswagen")
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.build();
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log.info("Veiculo: {}", veiculo);
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}
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}

‎gRPC-demo-setup/java-grpc-fiap-demo/src/main/java/dev/ghlima/Demo2.java‎

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package dev.ghlima;
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import dev.ghlima.veiculo.Veiculo;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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public class Demo2 {
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private static final Logger log = LoggerFactory.getLogger(Demo2.class);
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public static void main(String[] args) {
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//criar um veiculo
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var veiculo1 = criaVeiculo();
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//criar outro veiculo com uma nova instancia porem mesmos valores
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var veivulo2 = criaVeiculo();
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//comparar os veiculos
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log.info("equals {}", veiculo1.equals(veivulo2));
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log.info("== {}", (veiculo1 == veivulo2));
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var veiculo3 = veiculo1.toBuilder().setModelo("Gol").build();
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log.info("Veiculo 3: {}", veiculo3);
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//comparar os veiculos
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log.info("equals {}", veiculo1.equals(veiculo3));
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log.info("== {}", (veiculo1 == veiculo3));
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//null?
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var veiculo4 = veiculo3.toBuilder().clearAno().build();
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log.info("Veiculo 4: {}", veiculo4);
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}
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public static Veiculo criaVeiculo() {
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return Veiculo.newBuilder()
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.setId(1)
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.setAno(2021)
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.setModelo("Fusca")
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.setMarca("Volkswagen")
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.build();
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}
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}

‎gRPC-demo-setup/java-grpc-fiap-demo/src/main/java/dev/ghlima/Demo3.java‎

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package dev.ghlima;
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import dev.ghlima.demos.composition.Endereco;
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import dev.ghlima.demos.composition.Pessoa;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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public class Demo3 {
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private static final Logger log = LoggerFactory.getLogger(Demo3.class);
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public static void main(String[] args) {
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var endereco = Endereco.newBuilder()
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.setRua("Rua das Flores")
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.setBairro("Centro")
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.setCidade("São Paulo")
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.setEstado("SP")
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.setCep("12345-678")
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.build();
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var pessoa = Pessoa.newBuilder()
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.setNome("João")
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.setCpf("99999999999")
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.setRg("99999999999")
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.setEndereco(endereco)
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.build();
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var pessoa2 = Pessoa.newBuilder()
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.setNome("Maria")
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.setCpf("88888888888")
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.setRg("888888888888")
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.setEndereco(endereco.toBuilder().setRua("Rua das Rosas").setCep("12313-1231").build())
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.build();
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log.info("Pessoa: {}", pessoa);
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log.info("Pessoa 2: {}", pessoa2);
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log.info("Endereco: {}", pessoa.getEndereco());
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log.info("Endereco 2: {}", pessoa2.getEndereco());
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}
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}

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