Update Diagrama de arquitetura - SD.jpg

Updated architecture diagram image
Update Diagrama de arquitetura - SD.drawio
2025-12-08 12:33:31 +00:00 · 2025-12-04 22:27:01 +00:00 · 2025-12-04 22:25:55 +00:00 · 2025-11-27 19:54:14 +00:00 · 2025-11-27 15:49:03 +00:00 · 2025-11-27 15:47:30 +00:00
16 changed files with 1746 additions and 27 deletions
--- a/SD.drawio.bkp
+++ b/SD.drawio.bkp
@@ -0,0 +1,110 @@
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--- a/.github/workflows/maven.yml
+++ b/.github/workflows/maven.yml
@@ -1,8 +1,9 @@
 name: Java CI with Maven
 on:
  workflow_dispatch:
  push:
-    branches: [ "main" ]
+    branches: [ "dev", "cleanup" ]
    tags:
      - 'v*.*.*'
  pull_request:
@@ -11,51 +12,88 @@ on:
 jobs:
  build:
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@v4
    - name: Set up JDK 17
      uses: actions/setup-java@v4
      with:
        java-version: '17'
        distribution: 'temurin'
        cache: maven
    - name: Build with Maven
      run: mvn -B package
      working-directory: main
    - name: Upload built JAR
      uses: actions/upload-artifact@v4
      with:
        name: package
        path: main/target/*.jar
    - name: Generate dependency graph
      run: mvn -B -f main/pom.xml com.github.ferstl:depgraph-maven-plugin:4.0.1:graph
    - name: Upload dependency graph artifact
      uses: actions/upload-artifact@v4
      with:
        name: dependency-graph
        path: main/target/**
  build-windows:
    runs-on: windows-latest
    steps:
    - uses: actions/checkout@v4
    - name: Set up JDK 17
      uses: actions/setup-java@v4
      with:
        java-version: '17'
        distribution: 'temurin'
        cache: maven
    - name: Build with Maven (Skip Tests)
      run: mvn -B package -DskipTests
      working-directory: main
    - name: Create JPackage App Image
      shell: pwsh
      run: |
        New-Item -ItemType Directory -Force -Path "dist"
        jpackage --name "DTSS" `
          --input main/target `
          --main-jar main-1.0-SNAPSHOT.jar `
          --dest dist `
          --type app-image `
          --win-console
    - name: Inject java.exe
      shell: pwsh
      run: |
        $javaPath = (Get-Command java).Source
        Copy-Item -Path $javaPath -Destination "dist/DTSS/runtime/bin/"
    - name: Zip Windows Release
      shell: pwsh
      run: |
        Compress-Archive -Path "dist/DTSS" -DestinationPath "dist/DTSS-Windows.zip"
    - name: Upload Windows Artifact
      uses: actions/upload-artifact@v4
      with:
        name: windows-package
        path: dist/DTSS-Windows.zip
  publish-release:
    runs-on: ubuntu-latest
-    needs: [build]
+    needs: [build, build-windows]
    if: startsWith(github.ref, 'refs/tags/')
    permissions:
      contents: write
    steps:
-    - name: Download built JAR
+    - name: Download Linux JAR
      uses: actions/download-artifact@v4
      with:
        name: package
        path: main/target/
-
+    - name: Download Windows Zip
      uses: actions/download-artifact@v4
      with:
        name: windows-package
        path: windows-dist/
    - name: Create GitHub Release
      uses: softprops/action-gh-release@v2
      with:
-        files: main/target/*.jar
+        files: |
          main/target/*.jar
          windows-dist/*.zip
--- a/.gitignore
+++ b/.gitignore
@@ -47,4 +47,4 @@ build/
 # Other
 *.swp
-*.pdf
+.$Diagrama de arquitetura - SD.drawio.bkp
--- a/SD.drawio
+++ b/SD.drawio
@@ -1,24 +1,168 @@
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+<mxfile host="Electron" agent="Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) draw.io/29.0.3 Chrome/140.0.7339.249 Electron/38.7.0 Safari/537.36" version="29.0.3">
-  <diagram name="Página-1" id="B1_hHcevBzWlEwI7FSV6">
+  <diagram name="Arquitetura SD" id="QKeTeUWuUs8JeLsq44d-">
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        <mxCell id="0" />
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--- a/SD.jpg
+++ b/SD.jpg
--- a/Enunciado.pdf
+++ b/Enunciado.pdf
--- a/README.md
+++ b/README.md
@@ -0,0 +1,620 @@
 # Sistema de Simulação de Tráfego Distribuído
 Sistema distribuído de simulação de tráfego.
 ---
 ## Índice
 - [Visão Geral](#visão-geral)
 - [Arquitetura](#arquitetura)
 - [Protocolo de Comunicação](#protocolo-de-comunicação)
 - [Estrutura do Projeto](#estrutura-do-projeto)
 - [Instalação e Execução](#instalação-e-execução)
 - [Documentação](#documentação)
 - [Desenvolvimento](#desenvolvimento)
 ---
 ## Visão Geral
 Este projeto implementa uma simulação distribuída de tráfego veicular numa rede de cruzamentos. O sistema utiliza:
 - **Processos independentes** para cada cruzamento
 - **Threads** para controlar os semáforos dentro de cada cruzamento
 - **Comunicação via sockets** para transferência de veículos entre cruzamentos
 - **Simulação de eventos discretos** (DES) para gerir o tempo de simulação
 ### Características Principais
 - Simulação determinística e reproduzível
 - Comunicação assíncrona entre processos
 - Protocolo de mensagens baseado em JSON
 - Dashboard em tempo real (planeado)
 - Estatísticas detalhadas de desempenho
 ---
 ## Arquitetura
 ### Visão Geral do Sistema
 ```
 ┌─────────────────────────────────────────────────────────────────┐
 │                    SISTEMA DISTRIBUÍDO                           │
 ├─────────────────────────────────────────────────────────────────┤
 │                                                                   │
 │  ┌──────────────┐                          ┌──────────────┐     │
 │  │  Coordenador │ ────────────────────────>│  Dashboard   │     │
 │  │  / Gerador   │                          │              │
 │  └──────┬───────┘                          └──────▲───────┘     │
 │         │                                          │             │
 │         │ Gera veículos                    Stats  │             │
 │         │                                          │             │
 │         ▼                                          │             │
 │  ┌─────────────────────────────────────────────────┴──────┐     │
 │  │          Rede de Cruzamentos (Processos)              │     │
 │  │                                                         │     │
 │  │  ┌────┐         ┌────┐         ┌────┐                 │     │
 │  │  │Cr1 │◄───────►│Cr2 │◄───────►│Cr3 │                 │     │
 │  │  └─┬──┘         └─┬──┘         └─┬──┘                 │     │
 │  │    │              │              │                     │     │
 │  │    │         ┌────▼────┐         │                     │     │
 │  │    └────────►│   Cr4   │◄────────┘                     │     │
 │  │              └────┬────┘                               │     │
 │  │                   │                                     │     │
 │  │              ┌────▼────┐                               │     │
 │  │              │   Cr5   │                               │     │
 │  │              └────┬────┘                               │     │
 │  └───────────────────┼─────────────────────────────────────┤     │
 │                      │                                     │     │
 │                      ▼                                     │     │
 │               ┌──────────────┐                            │     │
 │               │  Nó de Saída │                            │     │
 │               │      (S)     │                            │     │
 │               └──────────────┘                            │     │
 │                                                            │     │
 └────────────────────────────────────────────────────────────┘     │
 ```
 ### Componentes
 1. **Coordenador/Gerador**: Gera veículos e injeta no sistema
 2. **Cruzamentos (Cr1-Cr5)**: Processos independentes que gerem tráfego local
 3. **Nó de Saída (S)**: Recolhe estatísticas de veículos que saem do sistema
 4. **Dashboard Server**: Agrega e exibe dados em tempo real
 ---
 ## Protocolo de Comunicação
 ### Formato de Serialização: JSON (Gson)
 O sistema utiliza JSON como formato de serialização por ser mais rápido, seguro e legível que a serialização em Java.
 ### Estrutura de Mensagens
 Todas as mensagens seguem o formato base:
 ```json
 {
  "messageId": "uuid",
  "type": "MESSAGE_TYPE",
  "senderId": "sender_id",
  "destinationId": "destination_id",
  "timestamp": 1729595234567,
  "payload": { ... }
 }
 ```
 ### Tipos de Mensagens
 #### 1. VEHICLE_TRANSFER
 Transfere um veículo entre cruzamentos.
 **Estrutura:**
 ```json
 {
  "messageId": "a3c5e7f9-1234-5678-90ab-cdef12345678",
  "type": "VEHICLE_TRANSFER",
  "senderId": "Cr1",
  "destinationId": "Cr2",
  "timestamp": 1729595234567,
  "payload": {
    "id": "V123",
    "type": "LIGHT",
    "entryTime": 15.7,
    "route": ["Cr1", "Cr2", "Cr5", "S"],
    "currentRouteIndex": 1,
    "totalWaitingTime": 3.2,
    "totalCrossingTime": 1.8
  }
 }
 ```
 **Fluxo:**
 1. Veículo completa travessia no Cr1
 2. Cr1 serializa mensagem VEHICLE_TRANSFER
 3. Envia para Cr2 via socket
 4. Cr2 desserializa e adiciona veículo à fila
 #### 2. STATS_UPDATE
 Envia estatísticas de um cruzamento para o Dashboard.
 **Estrutura:**
 ```json
 {
  "messageId": "b4d6e8f0-2345-6789-01bc-def123456789",
  "type": "STATS_UPDATE",
  "senderId": "Cr3",
  "destinationId": "Dashboard",
  "timestamp": 1729595234789,
  "payload": {
    "intersectionId": "Cr3",
    "queueLengths": {
      "North": 5,
      "South": 3,
      "East": 7,
      "West": 2
    },
    "vehiclesProcessed": 142,
    "averageWaitTime": 4.5,
    "currentTime": 123.45
  }
 }
 ```
 **Frequência:** A cada 10 segundos (configurável)
 #### 3. VEHICLE_EXIT
 Notifica quando um veículo sai do sistema.
 **Estrutura:**
 ```json
 {
  "messageId": "c5e7f9a1-3456-7890-12bc-def123456789",
  "type": "VEHICLE_EXIT",
  "senderId": "Cr5",
  "destinationId": "ExitNode",
  "timestamp": 1729595234890,
  "payload": {
    "id": "V123",
    "type": "LIGHT",
    "entryTime": 15.7,
    "exitTime": 45.2,
    "totalSystemTime": 29.5,
    "totalWaitingTime": 8.3,
    "totalCrossingTime": 4.8,
    "routeTaken": ["Cr1", "Cr2", "Cr5", "S"]
  }
 }
 ```
 #### 4. HEARTBEAT
 Mantém a ligação ativa e monitoriza a saúde dos processos.
 **Estrutura:**
 ```json
 {
  "messageId": "d6e8f0a2-4567-8901-23cd-ef1234567890",
  "type": "HEARTBEAT",
  "senderId": "Cr1",
  "destinationId": "Coordinator",
  "timestamp": 1729595235000,
  "payload": {
    "status": "RUNNING",
    "uptime": 120.5,
    "vehiclesInQueue": 12
  }
 }
 ```
 **Frequência:** A cada 5 segundos
 #### 5. LIGHT_CHANGE
 Notifica mudança de estado de semáforo (para logging/debugging).
 **Estrutura:**
 ```json
 {
  "messageId": "e7f9a1b3-5678-9012-34de-f12345678901",
  "type": "LIGHT_CHANGE",
  "senderId": "Cr1-North",
  "destinationId": "Dashboard",
  "timestamp": 1729595235100,
  "payload": {
    "lightId": "Cr1-North",
    "previousState": "RED",
    "newState": "GREEN",
    "queueSize": 5
  }
 }
 ```
 ### Tipos de Veículos
 ```json
 {
  "BIKE": {
    "probability": 0.20,
    "crossingTime": 1.5
  },
  "LIGHT": {
    "probability": 0.60,
    "crossingTime": 2.0
  },
  "HEAVY": {
    "probability": 0.20,
    "crossingTime": 4.0
  }
 }
 ```
 ### Estados dos Semáforos
 ```
 RED    → Veículos aguardam na fila
 GREEN  → Veículos podem atravessar
 ```
 ### Exemplo de Comunicação Completa
 ```
 Tempo    Processo    Ação                                    Mensagem
 ------   ---------   -------------------------------------   ------------------
 15.7s    Gerador     Gera veículo V123                      -
 15.7s    Gerador →   Injeta V123 em Cr1                     VEHICLE_TRANSFER
 18.2s    Cr1         V123 inicia travessia                  -
 20.2s    Cr1         V123 completa travessia                -
 20.2s    Cr1 → Cr2   Transfere V123 para Cr2                VEHICLE_TRANSFER
 23.5s    Cr2         V123 inicia travessia                  -
 25.5s    Cr2         V123 completa travessia                -
 25.5s    Cr2 → Cr5   Transfere V123 para Cr5                VEHICLE_TRANSFER
 28.0s    Cr5         V123 inicia travessia                  -
 30.0s    Cr5         V123 completa travessia                -
 30.0s    Cr5 → Exit  V123 sai do sistema                    VEHICLE_EXIT
 30.0s    Exit → Dash Estatísticas de V123                   STATS_UPDATE
 ```
 ---
 ## Estrutura do Projeto
 ```
 Trabalho-Pratico-SD/
 ├── README.md                          # Este ficheiro
 ├── TODO.md                            # Plano de desenvolvimento
 ├── main/
 │   ├── pom.xml                        # Configuração do Maven
 │   ├── docs/
 │   │   ├── README.md                  # Índice da documentação
 │   │   ├── SERIALIZATION_SPECIFICATION.md
 │   │   ├── SERIALIZATION_DECISION.md
 │   │   ├── SERIALIZATION_SUMMARY.md
 │   │   └── SERIALIZATION_ARCHITECTURE.md
 │   ├── src/
 │   │   ├── main/java/sd/
 │   │   │   ├── Entry.java             # Ponto de entrada
 │   │   │   ├── config/
 │   │   │   │   └── SimulationConfig.java
 │   │   │   ├── engine/
 │   │   │   │   └── SimulationEngine.java
 │   │   │   ├── model/
 │   │   │   │   ├── Event.java
 │   │   │   │   ├── EventType.java
 │   │   │   │   ├── Intersection.java
 │   │   │   │   ├── Message.java          # Estrutura de mensagens
 │   │   │   │   ├── MessageType.java      # Tipos de mensagens
 │   │   │   │   ├── TrafficLight.java
 │   │   │   │   ├── Vehicle.java
 │   │   │   │   └── VehicleType.java
 │   │   │   ├── serialization/            # Sistema de serialização
 │   │   │   │   ├── MessageSerializer.java
 │   │   │   │   ├── SerializationException.java
 │   │   │   │   ├── JsonMessageSerializer.java
 │   │   │   │   ├── SerializerFactory.java
 │   │   │   │   ├── SerializationExample.java
 │   │   │   │   └── README.md
 │   │   │   └── util/
 │   │   │       ├── RandomGenerator.java
 │   │   │       ├── StatisticsCollector.java
 │   │   │       └── VehicleGenerator.java
 │   │   └── test/java/
 │   │       ├── SimulationTest.java
 │   │       └── sd/serialization/
 │   │           └── SerializationTest.java
 │   └── target/                        # Ficheiros compilados
 └── .vscode/                           # Configuração do VS Code
 ```
 ---
 ## Instalação e Execução
 ### Pré-requisitos
 - **Java 17** ou superior
 - **Maven 3.8+**
 - **Git**
 ### Instalação
 ```bash
 # Clonar o repositório
 git clone https://github.com/davidalves04/Trabalho-Pratico-SD.git
 cd Trabalho-Pratico-SD/main
 # Compilar o projeto
 mvn clean compile
 # Executar os testes
 mvn test
 ```
 ### Execução
 #### Simulação Básica (Single Process)
 ```bash
 mvn exec:java -Dexec.mainClass="sd.Entry"
 ```
 #### Exemplo de Serialização
 ```bash
 mvn exec:java -Dexec.mainClass="sd.serialization.SerializationExample"
 ```
 #### Configuração
 Editar `src/main/resources/simulation.properties`:
 ```properties
 # Duração da simulação (segundos)
 simulation.duration=60.0
 # Modelo de chegada: FIXED ou POISSON
 arrival.model=POISSON
 # Taxa de chegada (veículos/segundo)
 arrival.rate=0.5
 # Intervalo de atualização de estatísticas (segundos)
 stats.update.interval=10.0
 # Distribuição de tipos de veículos
 vehicle.type.bike.probability=0.20
 vehicle.type.light.probability=0.60
 vehicle.type.heavy.probability=0.20
 # Tempos de travessia por tipo (segundos)
 vehicle.type.bike.crossing.time=1.5
 vehicle.type.light.crossing.time=2.0
 vehicle.type.heavy.crossing.time=4.0
 ```
 ---
 ## Documentação
 ### Documentação de Serialização
 A documentação completa sobre o protocolo de serialização está disponível em:
 - **[Índice Completo](./main/docs/README.md)** - Navegação da documentação
 - **[Especificação](./main/docs/SERIALIZATION_SPECIFICATION.md)** - Design detalhado
 - **[Guia de Decisão](./main/docs/SERIALIZATION_DECISION.md)** - Porquê JSON?
 - **[Resumo](./main/docs/SERIALIZATION_SUMMARY.md)** - Estado de implementação
 - **[Arquitetura](./main/docs/SERIALIZATION_ARCHITECTURE.md)** - Diagramas visuais
 ### Guias de Utilização
 - **[Serialization README](./main/src/main/java/sd/serialization/README.md)** - Como utilizar os serializers
 ### Exemplos de Código
 ```java
 // Criar serializer
 MessageSerializer serializer = SerializerFactory.createDefault();
 // Serializar mensagem
 Vehicle vehicle = new Vehicle("V123", VehicleType.LIGHT, 10.5, route);
 Message message = new Message(
    MessageType.VEHICLE_TRANSFER,
    "Cr1",
    "Cr2",
    vehicle
 );
 byte[] data = serializer.serialize(message);
 // Enviar via socket
 outputStream.write(data);
 // Receber e desserializar
 byte[] received = inputStream.readAllBytes();
 Message msg = serializer.deserialize(received, Message.class);
 Vehicle v = msg.getPayloadAs(Vehicle.class);
 ```
 ---
 ## Desenvolvimento
 ### Estado do Projeto
 | Componente | Estado | Notas |
 |------------|--------|-------|
 | Modelo de Dados | Completo | Vehicle, Message, Event, etc. |
 | Simulação DES | Completo | Single-process funcional |
 | Serialização | Completo | JSON e Java implementados |
 | Testes | 14/14 | Suite de serialização |
 | Processos Distribuídos | Planeado | Próxima etapa |
 | Comunicação Sockets | Planeado | Em design |
 | Dashboard | Planeado | UI web |
 ### Roteiro de Desenvolvimento
 #### Fase 1: Fundações (Concluído)
 - Modelação de classes
 - Simulação DES single-process
 - Design de protocolo de serialização
 - Implementação JSON/Java serialization
 - Testes unitários
 #### Fase 2: Distribuição (Em Curso)
 - Implementar comunicação via sockets
 - Separar cruzamentos em processos
 - Implementar threads de semáforos
 - Testar comunicação entre processos
 #### Fase 3: Dashboard e Monitorização
 - Dashboard server
 - UI web em tempo real
 - Visualização de estatísticas
 - Logs estruturados
 #### Fase 4: Optimização e Análise
 - Testes de carga
 - Análise de diferentes políticas
 - Recolha de métricas
 - Relatório final
 ### Executar Testes
 ```bash
 # Todos os testes
 mvn test
 # Apenas testes de serialização
 mvn test -Dtest=SerializationTest
 # Com relatório de cobertura
 mvn test jacoco:report
 ```
 ### Contribuir
 1. Fork o projeto
 2. Criar uma branch para a funcionalidade (`git checkout -b feature/MinhaFuncionalidade`)
 3. Commit das alterações (`git commit -m 'Adiciona MinhaFuncionalidade'`)
 4. Push para a branch (`git push origin feature/MinhaFuncionalidade`)
 5. Abrir um Pull Request
 ---
 ## Métricas de Desempenho
 ### Serialização
 | Formato | Tamanho | Latência | Throughput |
 |---------|---------|----------|------------|
 | JSON | 300 bytes | 40.79 μs | ~24k msgs/s |
 | Java | 657 bytes | 33.34 μs | ~30k msgs/s |
 **Conclusão**: JSON é 54% menor com overhead desprezível (7 μs)
 ### Simulação
 - **Veículos gerados/s**: ~0.5-1.0 (configurável)
 - **Throughput**: ~0.2 veículos/s (saída)
 - **Tempo de execução**: 140ms para 60s de simulação
 - **Overhead**: < 0.25% do tempo simulado
 ---
 ## Protocolo de Mensagens - Resumo
 ### Formato Base
 ```
 +------------------+
 | Message Header   |
 |------------------|
 | messageId        | UUID único
 | type             | Enum MessageType
 | senderId         | ID do processo remetente
 | destinationId    | ID do processo destino (null = broadcast)
 | timestamp        | Tempo de criação (ms)
 +------------------+
 | Payload          |
 |------------------|
 | Object           | Dados específicos do tipo de mensagem
 +------------------+
 ```
 ### Serialização
 - **Formato**: JSON (UTF-8)
 - **Biblioteca**: Gson 2.10.1
 - **Codificação**: UTF-8
 - **Compressão**: Opcional (gzip)
 ### Transporte
 - **Protocolo**: TCP/IP
 - **Porta base**: 5000+ (configurável)
 - **Timeout**: 30s
 - **Keep-alive**: Heartbeat a cada 5s
 ---
 ## Segurança
 ### Considerações
 1. **Validação de Mensagens**
   - Verificar tipos esperados
   - Validar intervalos de valores
   - Rejeitar mensagens malformadas
 2. **Autenticação** (Planeado)
   - Autenticação baseada em token
   - Whitelist de processos
 3. **Encriptação** (Opcional)
   - TLS/SSL para produção
   - Não necessário para ambiente de desenvolvimento local
 ---
 ## Licença
 Este projeto é desenvolvido para fins académicos no âmbito da disciplina de Sistemas Distribuídos (SD) do Instituto Politécnico do Porto.
 ---
 ## Equipa
 **Instituição**: Instituto Politécnico do Porto  
 **Curso**: Sistemas Distribuídos  
 **Ano Letivo**: 2025-2026 (1º Semestre)
 ---
 ## Suporte
 Para questões ou problemas:
 1. Consultar a [documentação](./main/docs/README.md)
 2. Ver [exemplos de código](./main/src/main/java/sd/serialization/SerializationExample.java)
 3. Executar testes: `mvn test`
 4. Abrir issue no GitHub
 ---
 ## Ligações Úteis
 - [Documentação do Projeto](./main/docs/README.md)
 - [Plano de Desenvolvimento](./TODO.md)
 - [Especificação de Serialização](./main/docs/SERIALIZATION_SPECIFICATION.md)
 - [Guia de Serialização](./main/src/main/java/sd/serialization/README.md)
 ---
 **Última actualização**: 23 de outubro de 2025  
 **Versão**: 1.0.0  
 **Estado**: Em Desenvolvimento Activo
--- a/main/pom.xml
+++ b/main/pom.xml
@@ -22,6 +22,47 @@
            <version>5.10.0</version>
            <scope>test</scope>
        </dependency>
        <!-- Gson for JSON serialization -->
        <dependency>
            <groupId>com.google.code.gson</groupId>
            <artifactId>gson</artifactId>
            <version>2.10.1</version>
        </dependency>
    </dependencies>
    <build>
        <plugins>
            <!-- Maven Exec Plugin for running examples -->
            <plugin>
                <groupId>org.codehaus.mojo</groupId>
                <artifactId>exec-maven-plugin</artifactId>
                <version>3.1.0</version>
                <configuration>
                    <mainClass>sd.Entry</mainClass>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-shade-plugin</artifactId>
                <version>3.5.2</version>
                <executions>
                    <execution>
                        <phase>package</phase>
                        <goals>
                            <goal>shade</goal>
                        </goals>
                        <configuration>
                            <transformers>
                                <transformer implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
                                    <mainClass>sd.Entry</mainClass>
                                </transformer>
                            </transformers>
                        </configuration>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>
 </project>
--- a/main/src/main/java/sd/model/Message.java
+++ b/main/src/main/java/sd/model/Message.java
@@ -0,0 +1,142 @@
 package sd.model;
 import java.io.Serializable;
 import java.util.UUID;
 /**
 * Represents a message exchanged between processes in the distributed simulation.
 * Each message has a unique ID, a type, a sender, a destination, and a payload.
 * This class implements {@link Serializable} to allow transmission over the network.
 */
 public class Message implements Serializable {
    private static final long serialVersionUID = 1L;
    /**
     * Unique identifier for this message.
     */
    private final String messageId;
    /**
     * The type of this message (e.g., VEHICLE_TRANSFER, STATS_UPDATE).
     */
    private final MessageType type;
    /**
     * Identifier of the process that sent this message.
     */
    private final String senderId;
    /**
     * Identifier of the destination process. Can be null for broadcast messages.
     */
    private final String destinationId;
    /**
     * The actual data being transmitted. Type depends on the message type.
     */
    private final Object payload;
    /**
     * Timestamp when this message was created (simulation time or real time).
     */
    private final long timestamp;
    /**
     * Creates a new message with all parameters.
     *
     * @param type The message type
     * @param senderId The ID of the sending process
     * @param destinationId The ID of the destination process (null for broadcast)
     * @param payload The message payload
     * @param timestamp The timestamp of message creation
     */
    public Message(MessageType type, String senderId, String destinationId, 
                   Object payload, long timestamp) {
        this.messageId = UUID.randomUUID().toString();
        this.type = type;
        this.senderId = senderId;
        this.destinationId = destinationId;
        this.payload = payload;
        this.timestamp = timestamp;
    }
    /**
     * Creates a new message with current system time as timestamp.
     *
     * @param type The message type
     * @param senderId The ID of the sending process
     * @param destinationId The ID of the destination process
     * @param payload The message payload
     */
    public Message(MessageType type, String senderId, String destinationId, Object payload) {
        this(type, senderId, destinationId, payload, System.currentTimeMillis());
    }
    /**
     * Creates a broadcast message (no specific destination).
     *
     * @param type The message type
     * @param senderId The ID of the sending process
     * @param payload The message payload
     */
    public Message(MessageType type, String senderId, Object payload) {
        this(type, senderId, null, payload, System.currentTimeMillis());
    }
    //Getters
    public String getMessageId() {
        return messageId;
    }
    public MessageType getType() {
        return type;
    }
    public String getSenderId() {
        return senderId;
    }
    public String getDestinationId() {
        return destinationId;
    }
    public Object getPayload() {
        return payload;
    }
    public long getTimestamp() {
        return timestamp;
    }
    /**
     * Checks if this is a broadcast message (no specific destination).
     *
     * @return true if destinationId is null, false otherwise
     */
    public boolean isBroadcast() {
        return destinationId == null;
    }
    /**
     * Gets the payload cast to a specific type.
     * Use with caution and ensure type safety.
     *
     * @param <T> The expected payload type
     * @return The payload cast to type T
     * @throws ClassCastException if the payload is not of type T
     */
    @SuppressWarnings("unchecked")
    public <T> T getPayloadAs(Class<T> clazz) {
        return (T) payload;
    }
    @Override
    public String toString() {
        return String.format("Message[id=%s, type=%s, from=%s, to=%s, timestamp=%d]",
                           messageId, type, senderId, 
                           destinationId != null ? destinationId : "BROADCAST",
                           timestamp);
    }
 }
--- a/main/src/main/java/sd/model/MessageType.java
+++ b/main/src/main/java/sd/model/MessageType.java
@@ -0,0 +1,81 @@
 package sd.model;
 /**
 * Enumeration representing all possible message types for distributed communication.
 * These types are used for inter-process communication between different components
 * of the distributed traffic simulation system.
 */
 public enum MessageType {
    /**
     * Message to transfer a vehicle between intersections or processes.
     * Payload: Vehicle object with current state
     */
    VEHICLE_TRANSFER,
    /**
     * Message to update statistics across the distributed system.
     * Payload: Statistics data (waiting times, queue sizes, etc.)
     */
    STATS_UPDATE,
    /**
     * Message to synchronize traffic light states between processes.
     * Payload: TrafficLight state and timing information
     */
    TRAFFIC_LIGHT_SYNC,
    /**
     * Heartbeat message to check if a process is alive.
     * Payload: Process ID and timestamp
     */
    HEARTBEAT,
    /**
     * Request to join the distributed simulation.
     * Payload: Process information and capabilities
     */
    JOIN_REQUEST,
    /**
     * Response to a join request.
     * Payload: Acceptance status and configuration
     */
    JOIN_RESPONSE,
    /**
     * Message to notify about a new vehicle generation.
     * Payload: Vehicle generation parameters
     */
    VEHICLE_SPAWN,
    /**
     * Message to request the current state of an intersection.
     * Payload: Intersection ID
     */
    STATE_REQUEST,
    /**
     * Response containing the current state of an intersection.
     * Payload: Complete intersection state
     */
    STATE_RESPONSE,
    /**
     * Message to signal shutdown of a process.
     * Payload: Process ID and reason
     */
    SHUTDOWN,
    /**
     * Acknowledgment message for reliable communication.
     * Payload: Message ID being acknowledged
     */
    ACK,
    /**
     * Error message to report problems in the distributed system.
     * Payload: Error description and context
     */
    ERROR
 }
--- a/main/src/main/java/sd/serialization/JsonMessageSerializer.java
+++ b/main/src/main/java/sd/serialization/JsonMessageSerializer.java
@@ -0,0 +1,114 @@
 package sd.serialization;
 import com.google.gson.Gson;
 import com.google.gson.GsonBuilder;
 import com.google.gson.JsonSyntaxException;
 import java.nio.charset.StandardCharsets;
 /**
 * JSON-based implementation of {@link MessageSerializer} using Google's Gson library.
 * 
 * This serializer converts objects to JSON format for transmission, providing:
 * - Human-readable message format (easy debugging)
 * - Cross-platform compatibility
 * - Smaller message sizes compared to Java native serialization
 * - Better security (no code execution during deserialization)
 * 
 * The serializer is configured with pretty printing disabled by default for
 * production use, but can be enabled for debugging purposes.
 * 
 * Thread-safety: This class is thread-safe as Gson instances are thread-safe.
 * 
 * @see MessageSerializer
 */
 public class JsonMessageSerializer implements MessageSerializer {
    private final Gson gson;
    private final boolean prettyPrint;
    /**
     * Creates a new JSON serializer with default configuration (no pretty printing).
     */
    public JsonMessageSerializer() {
        this(false);
    }
    /**
     * Creates a new JSON serializer with optional pretty printing.
     * 
     * @param prettyPrint If true, JSON output will be formatted with indentation
     */
    public JsonMessageSerializer(boolean prettyPrint) {
        this.prettyPrint = prettyPrint;
        GsonBuilder builder = new GsonBuilder();
        if (prettyPrint) {
            builder.setPrettyPrinting();
        }
        // Register custom type adapters here if needed
        // builder.registerTypeAdapter(Vehicle.class, new VehicleAdapter());
        this.gson = builder.create();
    }
    @Override
    public byte[] serialize(Object object) throws SerializationException {
        if (object == null) {
            throw new IllegalArgumentException("Cannot serialize null object");
        }
        try {
            String json = gson.toJson(object);
            return json.getBytes(StandardCharsets.UTF_8);
        } catch (Exception e) {
            throw new SerializationException(
                "Failed to serialize object of type " + object.getClass().getName(), e);
        }
    }
    @Override
    public <T> T deserialize(byte[] data, Class<T> clazz) throws SerializationException {
        if (data == null) {
            throw new IllegalArgumentException("Cannot deserialize null data");
        }
        if (clazz == null) {
            throw new IllegalArgumentException("Class type cannot be null");
        }
        try {
            String json = new String(data, StandardCharsets.UTF_8);
            return gson.fromJson(json, clazz);
        } catch (JsonSyntaxException e) {
            throw new SerializationException(
                "Failed to parse JSON for type " + clazz.getName(), e);
        } catch (Exception e) {
            throw new SerializationException(
                "Failed to deserialize object of type " + clazz.getName(), e);
        }
    }
    @Override
    public String getName() {
        return "JSON (Gson)";
    }
    /**
     * Returns the underlying Gson instance for advanced usage.
     * 
     * @return The Gson instance
     */
    public Gson getGson() {
        return gson;
    }
    /**
     * Checks if pretty printing is enabled.
     * 
     * @return true if pretty printing is enabled
     */
    public boolean isPrettyPrint() {
        return prettyPrint;
    }
 }
--- a/main/src/main/java/sd/serialization/MessageSerializer.java
+++ b/main/src/main/java/sd/serialization/MessageSerializer.java
@@ -0,0 +1,48 @@
 package sd.serialization;
 /**
 * Interface for serializing and deserializing objects for network transmission.
 * 
 * This interface provides a common abstraction for different serialization strategies
 * allowing the system to switch between implementations without changing the communication layer.
 * 
 * Implementations must ensure:
 * - Thread-safety if used in concurrent contexts
 * - Proper exception handling with meaningful error messages
 * - Preservation of object state during round-trip serialization
 * 
 * @see JsonMessageSerializer
 */
 public interface MessageSerializer {
    /**
     * Serializes an object into a byte array for transmission.
     * 
     * @param object The object to serialize (must not be null)
     * @return A byte array containing the serialized representation
     * @throws SerializationException If serialization fails
     * @throws IllegalArgumentException If object is null
     */
    byte[] serialize(Object object) throws SerializationException;
    /**
     * Deserializes a byte array back into an object of the specified type.
     * 
     * @param <T> The expected type of the deserialized object
     * @param data The byte array containing serialized data (must not be null)
     * @param clazz The class of the expected object type (must not be null)
     * @return The deserialized object
     * @throws SerializationException If deserialization fails
     * @throws IllegalArgumentException If data or clazz is null
     */
    <T> T deserialize(byte[] data, Class<T> clazz) throws SerializationException;
    /**
     * Gets the name of this serialization strategy (e.g., "JSON", "Java Native").
     * Useful for logging and debugging.
     * 
     * @return The serializer name
     */
    String getName();
 }
--- a/main/src/main/java/sd/serialization/SerializationExample.java
+++ b/main/src/main/java/sd/serialization/SerializationExample.java
@@ -0,0 +1,134 @@
 package sd.serialization;
 import sd.model.Message;
 import sd.model.MessageType;
 import sd.model.Vehicle;
 import sd.model.VehicleType;
 import java.util.Arrays;
 import java.util.List;
 /**
 * Demonstration of JSON serialization usage in the traffic simulation system.
 * 
 * This class shows practical examples of how to use JSON (Gson) serialization
 * for network communication between simulation processes.
 */
 public class SerializationExample {
    public static void main(String[] args) {
        System.out.println("=== JSON Serialization Example ===\n");
        // Create a sample vehicle
        List<String> route = Arrays.asList("Cr1", "Cr2", "Cr5", "S");
        Vehicle vehicle = new Vehicle("V001", VehicleType.LIGHT, 10.5, route);
        vehicle.addWaitingTime(2.3);
        vehicle.addCrossingTime(1.2);
        // Create a message containing the vehicle
        Message message = new Message(
            MessageType.VEHICLE_TRANSFER,
            "Cr1",
            "Cr2",
            vehicle
        );
        // ===== JSON Serialization =====
        demonstrateJsonSerialization(message);
        // ===== Factory Usage =====
        demonstrateFactoryUsage(message);
        // ===== Performance Test =====
        performanceTest(message);
    }
    private static void demonstrateJsonSerialization(Message message) {
        System.out.println("--- JSON Serialization ---");
        try {
            // Create JSON serializer with pretty printing for readability
            MessageSerializer serializer = new JsonMessageSerializer(true);
            // Serialize to bytes
            byte[] data = serializer.serialize(message);
            // Display the JSON
            String json = new String(data);
            System.out.println("Serialized JSON (" + data.length + " bytes):");
            System.out.println(json);
            // Deserialize back
            Message deserialized = serializer.deserialize(data, Message.class);
            System.out.println("\nDeserialized: " + deserialized);
            System.out.println("✓ JSON serialization successful\n");
        } catch (SerializationException e) {
            System.err.println("❌ JSON serialization failed: " + e.getMessage());
        }
    }
    private static void demonstrateFactoryUsage(Message message) {
        System.out.println("--- Using SerializerFactory ---");
        try {
            // Get default serializer (JSON)
            MessageSerializer serializer = SerializerFactory.createDefault();
            System.out.println("Default serializer: " + serializer.getName());
            // Use it
            byte[] data = serializer.serialize(message);
            Message deserialized = serializer.deserialize(data, Message.class);
            System.out.println("Message type: " + deserialized.getType());
            System.out.println("From: " + deserialized.getSenderId() + 
                             " → To: " + deserialized.getDestinationId());
            System.out.println("✓ Factory usage successful\n");
        } catch (SerializationException e) {
            System.err.println("❌ Factory usage failed: " + e.getMessage());
        }
    }
    private static void performanceTest(Message message) {
        System.out.println("--- Performance Test ---");
        int iterations = 1000;
        try {
            MessageSerializer compactSerializer = new JsonMessageSerializer(false);
            MessageSerializer prettySerializer = new JsonMessageSerializer(true);
            // Warm up
            for (int i = 0; i < 100; i++) {
                compactSerializer.serialize(message);
            }
            // Test compact JSON
            long compactStart = System.nanoTime();
            byte[] compactData = null;
            for (int i = 0; i < iterations; i++) {
                compactData = compactSerializer.serialize(message);
            }
            long compactTime = System.nanoTime() - compactStart;
            // Test pretty JSON
            byte[] prettyData = prettySerializer.serialize(message);
            // Results
            System.out.println("Iterations: " + iterations);
            System.out.println("\nJSON Compact:");
            System.out.println("  Size: " + compactData.length + " bytes");
            System.out.println("  Time: " + (compactTime / 1_000_000.0) + " ms total");
            System.out.println("  Avg:  " + (compactTime / iterations / 1_000.0) + " μs/operation");
            System.out.println("\nJSON Pretty-Print:");
            System.out.println("  Size: " + prettyData.length + " bytes");
            System.out.println("  Size increase: " + 
                String.format("%.1f%%", ((double)prettyData.length / compactData.length - 1) * 100));
        } catch (SerializationException e) {
            System.err.println("❌ Performance test failed: " + e.getMessage());
        }
    }
 }
--- a/main/src/main/java/sd/serialization/SerializationException.java
+++ b/main/src/main/java/sd/serialization/SerializationException.java
@@ -0,0 +1,41 @@
 package sd.serialization;
 /**
 * Exception thrown when serialization or deserialization operations fail.
 * 
 * This exception wraps underlying errors (I/O exceptions, parsing errors, etc.)
 * and provides context about what went wrong during the serialization process.
 */
 public class SerializationException extends Exception {
    private static final long serialVersionUID = 1L; // Long(64bits) instead of int(32bits)
    /**
     * Constructs a new serialization exception with the specified detail message.
     * 
     * @param message The detail message
     */
    public SerializationException(String message) {
        super(message);
    }
    /**
     * Constructs a new serialization exception with the specified detail message
     * and cause.
     * 
     * @param message The detail message
     * @param cause The cause of this exception
     */
    public SerializationException(String message, Throwable cause) {
        super(message, cause);
    }
    /**
     * Constructs a new serialization exception with the specified cause.
     * 
     * @param cause The cause of this exception
     */
    public SerializationException(Throwable cause) {
        super(cause);
    }
 }
--- a/main/src/main/java/sd/serialization/SerializerFactory.java
+++ b/main/src/main/java/sd/serialization/SerializerFactory.java
@@ -0,0 +1,66 @@
 package sd.serialization;
 /**
 * Factory for creating {@link MessageSerializer} instances.
 * 
 * This factory provides a centralized way to create and configure JSON serializers
 * using Gson, making it easy to configure serialization throughout the application.
 * 
 * The factory can be configured via system properties for easy deployment configuration.
 * 
 * Example usage:
 * <pre>
 * MessageSerializer serializer = SerializerFactory.createDefault();
 * byte[] data = serializer.serialize(myObject);
 * </pre>
 */
 public class SerializerFactory {
    /**
     * System property key for enabling pretty-print in JSON serialization.
     * Set to "true" for debugging, "false" for production.
     */
    public static final String JSON_PRETTY_PRINT_PROPERTY = "sd.serialization.json.prettyPrint";
    // Default configuration
    private static final boolean DEFAULT_JSON_PRETTY_PRINT = false;
    /**
     * Private constructor to prevent instantiation.
     */
    private SerializerFactory() {
        throw new UnsupportedOperationException("Factory class cannot be instantiated");
    }
    /**
     * Creates a JSON serializer based on system configuration.
     * 
     * Pretty-print is determined by checking the system property
     * {@value #JSON_PRETTY_PRINT_PROPERTY}. If not set, defaults to false.
     * 
     * @return A configured JsonMessageSerializer instance
     */
    public static MessageSerializer createDefault() {
        boolean prettyPrint = Boolean.getBoolean(JSON_PRETTY_PRINT_PROPERTY);
        return new JsonMessageSerializer(prettyPrint);
    }
    /**
     * Creates a JSON serializer with default configuration (no pretty printing).
     * 
     * @return A JsonMessageSerializer instance
     */
    public static MessageSerializer createSerializer() {
        return createSerializer(DEFAULT_JSON_PRETTY_PRINT);
    }
    /**
     * Creates a JSON serializer with specified pretty-print setting.
     * 
     * @param prettyPrint Whether to enable pretty printing
     * @return A JsonMessageSerializer instance
     */
    public static MessageSerializer createSerializer(boolean prettyPrint) {
        return new JsonMessageSerializer(prettyPrint);
    }
 }
--- a/main/src/test/java/sd/serialization/SerializationTest.java
+++ b/main/src/test/java/sd/serialization/SerializationTest.java
@@ -0,0 +1,140 @@
 package sd.serialization;
 import org.junit.jupiter.api.Test;
 import org.junit.jupiter.api.DisplayName;
 import sd.model.Message;
 import sd.model.Vehicle;
 import sd.model.VehicleType;
 import java.util.Arrays;
 import static org.junit.jupiter.api.Assertions.*;
 /**
 * Test suite for JSON serialization.
 * 
 * Tests JSON serialization to ensure:
 * - Correct serialization and deserialization
 * - Data integrity during round-trip conversion
 * - Proper error handling
 */
 class SerializationTest {
    private MessageSerializer jsonSerializer = new JsonMessageSerializer();
    private Vehicle testVehicle = new Vehicle("V001", VehicleType.LIGHT, 10.5,
            Arrays.asList("Cr1", "Cr2", "Cr5", "S"));
    private Message testMessage = new Message(
            sd.model.MessageType.VEHICLE_TRANSFER,
            "Cr1",
            "Cr2",
            testVehicle
    );
    // ===== JSON Serialization Tests =====
    @Test
    @DisplayName("JSON: Should serialize and deserialize Vehicle correctly")
    void testJsonVehicleRoundTrip() throws SerializationException {
        // Serialize
        byte[] data = jsonSerializer.serialize(testVehicle);
        assertNotNull(data);
        assertTrue(data.length > 0);
        // Print JSON for inspection
        System.out.println("JSON Vehicle:");
        System.out.println(new String(data));
        // Deserialize
        Vehicle deserialized = jsonSerializer.deserialize(data, Vehicle.class);
        // Verify
        assertNotNull(deserialized);
        assertEquals(testVehicle.getId(), deserialized.getId());
        assertEquals(testVehicle.getType(), deserialized.getType());
        assertEquals(testVehicle.getEntryTime(), deserialized.getEntryTime());
        assertEquals(testVehicle.getRoute(), deserialized.getRoute());
        assertEquals(testVehicle.getTotalWaitingTime(), deserialized.getTotalWaitingTime());
        assertEquals(testVehicle.getTotalCrossingTime(), deserialized.getTotalCrossingTime());
    }
    @Test
    @DisplayName("JSON: Should serialize and deserialize Message correctly")
    void testJsonMessageRoundTrip() throws SerializationException {
        // Serialize
        byte[] data = jsonSerializer.serialize(testMessage);
        assertNotNull(data);
        // Print JSON for inspection
        System.out.println("\nJSON Message:");
        System.out.println(new String(data));
        // Deserialize
        Message deserialized = jsonSerializer.deserialize(data, Message.class);
        // Verify
        assertNotNull(deserialized);
        assertEquals(testMessage.getType(), deserialized.getType());
        assertEquals(testMessage.getSenderId(), deserialized.getSenderId());
        assertEquals(testMessage.getDestinationId(), deserialized.getDestinationId());
    }
    @Test
    @DisplayName("JSON: Should throw exception on null object")
    void testJsonSerializeNull() {
        assertThrows(IllegalArgumentException.class, () -> {
            jsonSerializer.serialize(null);
        });
    }
    @Test
    @DisplayName("JSON: Should throw exception on null data")
    void testJsonDeserializeNull() {
        assertThrows(IllegalArgumentException.class, () -> {
            jsonSerializer.deserialize(null, Vehicle.class);
        });
    }
    @Test
    @DisplayName("JSON: Should throw exception on invalid JSON")
    void testJsonDeserializeInvalid() {
        byte[] invalidData = "{ invalid json }".getBytes();
        assertThrows(SerializationException.class, () -> {
            jsonSerializer.deserialize(invalidData, Vehicle.class);
        });
    }
    @Test
    @DisplayName("JSON: Should preserve data integrity for complex objects")
    void testDataIntegrity() throws SerializationException {
        // Create a more complex vehicle
        Vehicle vehicle = new Vehicle("V999", VehicleType.HEAVY, 100.5,
            Arrays.asList("Cr1", "Cr2", "Cr3", "Cr4", "Cr5", "S"));
        vehicle.addWaitingTime(10.5);
        vehicle.addWaitingTime(5.3);
        vehicle.addCrossingTime(2.1);
        vehicle.advanceRoute();
        vehicle.advanceRoute();
        // Serialize and deserialize
        byte[] jsonData = jsonSerializer.serialize(vehicle);
        Vehicle deserialized = jsonSerializer.deserialize(jsonData, Vehicle.class);
        // Verify all fields match
        assertEquals(vehicle.getId(), deserialized.getId());
        assertEquals(vehicle.getType(), deserialized.getType());
        assertEquals(vehicle.getTotalWaitingTime(), deserialized.getTotalWaitingTime());
        assertEquals(vehicle.getCurrentRouteIndex(), deserialized.getCurrentRouteIndex());
    }
    // ===== Factory Tests =====
    @Test
    @DisplayName("Factory: Should create JSON serializer by default")
    void testFactoryDefault() {
        MessageSerializer serializer = SerializerFactory.createDefault();
        assertNotNull(serializer);
        assertEquals("JSON (Gson)", serializer.getName());
    }
 }
Author	SHA1	Message	Date
David Alves	8fe4e564d3	Update Diagrama de arquitetura - SD.jpg	2025-12-04 22:27:01 +00:00
David Alves	e389c0711e	Updated architecture diagram image	2025-12-04 22:25:55 +00:00
David Alves	24fe1c1d67	Update Diagrama de arquitetura - SD.drawio	2025-11-27 19:54:14 +00:00
David Alves	766eabbbe4	Update .gitignore	2025-11-27 15:49:03 +00:00
David Alves	d7b1de1fe3	Update Diagrama de arquitetura - SD.drawio	2025-11-27 15:47:30 +00:00
David Alves	96b3a66b96	Diagram update @0x1eo @Gaa56 o que acham do diagrama? Mudariam/acrescentariam algo? As legendas, parecem-vos bem?	2025-11-27 15:46:02 +00:00
David Alves	29848b04a6	Update architecture diagram	2025-11-23 23:16:08 +00:00
Leandro Afonso	043ba7d185	Add workflow_dispatch trigger to Maven CI	2025-11-23 22:12:35 +00:00
Leandro Afonso	25f2876c34	Refactor GitHub Actions workflow for Maven build	2025-11-23 22:10:40 +00:00
Leandro Afonso	7cbecc4fab	Update Maven workflow for JDK setup and packaging	2025-11-23 22:00:49 +00:00
Leandro Afonso	72db59415f	Add Windows build job to Maven workflow	2025-11-23 21:53:33 +00:00
Leandro Afonso	60b4f0c2b6	Add 'cleanup' branch to Maven CI workflow	2025-11-22 22:53:54 +00:00
Leandro Afonso	81f842e2bb	Change CI branch from 'main' to 'dev'	2025-11-19 20:54:47 +00:00
David Alves	108d2e544c	Enunciado uploaded	2025-10-27 18:02:24 +00:00
Leandro Afonso	23f7a74798	Add dependency build to CI job	2025-10-24 20:20:15 +01:00
Leandro Afonso	d7dec0d73e	Merge pull request #21 from davidalves04/9-design-message-protocol-specification Mmessage protocol specification	2025-10-24 20:12:18 +01:00
David Alves	534a880e3e	Remove unused supports method from MessageSerializer	2025-10-24 12:02:03 +01:00
David Alves	ba3233eae1	Java serialization removed	2025-10-23 22:44:25 +01:00
David Alves	d20040835c	README	2025-10-23 20:28:43 +01:00
David Alves	2399b4b472	Delete main/docs directory	2025-10-23 20:22:53 +01:00
David Alves	974debf7db	Design serialization format JSON	2025-10-23 20:08:26 +01:00
David Alves	af9b091e76	Define message types	2025-10-22 18:43:49 +01:00