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| 1 | +package com.alexdevzz.pythonrunner; |
| 2 | + |
| 3 | +import com.alexdevzz.pythonrunner.cli.CommandLineArgs; |
| 4 | +import com.alexdevzz.pythonrunner.core.ExecutionResult; |
| 5 | +import com.alexdevzz.pythonrunner.core.PythonRunner; |
| 6 | +import com.alexdevzz.pythonrunner.core.PythonService; |
| 7 | + |
| 8 | +import java.io.IOException; |
| 9 | +import java.io.File; |
| 10 | +import java.nio.file.Files; |
| 11 | +import java.nio.file.Path; |
| 12 | +import java.nio.file.Paths; |
| 13 | +import java.util.Arrays; |
| 14 | +import java.util.Map; |
| 15 | + |
| 16 | +public class Main { |
| 17 | + |
| 18 | + private static final String APP_NAME = "Java Python Executor"; |
| 19 | + private static final String VERSION = "1.0.0"; |
| 20 | + |
| 21 | + /** |
| 22 | + * Entrada de la aplicación (Main) |
| 23 | + * @param args |
| 24 | + */ |
| 25 | + public static void main(String[] args) { |
| 26 | + |
| 27 | + System.out.println(APP_NAME + " v" + VERSION + "\n"); |
| 28 | + |
| 29 | + CommandLineArgs cli = CommandLineArgs.parse(args); |
| 30 | + |
| 31 | + // mostrar la ayuda |
| 32 | + if (cli.isHelpRequested() || (args.length == 0 && !cli.hasScript())) { |
| 33 | + printHelp(); |
| 34 | + System.exit(0); |
| 35 | + } |
| 36 | + |
| 37 | + // mostrar la lista de entornos virtuales |
| 38 | + if (cli.isListEnvs()) { |
| 39 | + listEnvironments(); |
| 40 | + System.exit(0); |
| 41 | + } |
| 42 | + |
| 43 | + // crear entorno virtual de python |
| 44 | + if (cli.isCreateEnv()) { |
| 45 | + createEnvironment(cli); |
| 46 | + System.exit(0); |
| 47 | + } |
| 48 | + |
| 49 | + if (cli.hasScript()) { |
| 50 | + executeScript(cli); |
| 51 | + } else { |
| 52 | + System.err.println("Error: No se especificó script Python a ejecutar."); |
| 53 | + printUsage(); |
| 54 | + System.exit(1); |
| 55 | + } |
| 56 | + } |
| 57 | + |
| 58 | + |
| 59 | + |
| 60 | + /** |
| 61 | + * Imprimir el resultado del script |
| 62 | + * @param result Resultado de ejecución |
| 63 | + */ |
| 64 | + private static void printResult(ExecutionResult result) { |
| 65 | + System.out.println("\n" + "═".repeat(60)); |
| 66 | + System.out.println("📊 RESULTADO DE EJECUCIÓN"); |
| 67 | + System.out.println("═".repeat(60)); |
| 68 | + |
| 69 | + System.out.println("✅ Código de salida: " + result.getExitCode()); |
| 70 | + System.out.println("📈 Estado: " + (result.isSuccess() ? "ÉXITO" : "FALLÓ")); |
| 71 | + |
| 72 | + if (!result.getOutput().isEmpty()) { |
| 73 | + System.out.println("\n📤 SALIDA DEL SCRIPT:"); |
| 74 | + System.out.println("-".repeat(40)); |
| 75 | + result.getOutput().forEach(line -> { |
| 76 | + if (line.startsWith("ERROR") || line.startsWith("Error") || |
| 77 | + line.contains("Traceback")) { |
| 78 | + System.err.println(line); |
| 79 | + } else { |
| 80 | + System.out.println(line); |
| 81 | + } |
| 82 | + }); |
| 83 | + } |
| 84 | + |
| 85 | + if (!result.getErrors().isEmpty()) { |
| 86 | + System.out.println("\n❌ ERRORES DEL SISTEMA:"); |
| 87 | + System.out.println("-".repeat(40)); |
| 88 | + result.getErrors().forEach(System.err::println); |
| 89 | + } |
| 90 | + |
| 91 | + System.out.println("═".repeat(60)); |
| 92 | + } |
| 93 | + |
| 94 | + /** |
| 95 | + * Verifica si el archivo cumple con todas las condiciones para ser ejecutado |
| 96 | + * @param filePath Ruta del archivo |
| 97 | + * @return True si el archivo es válido |
| 98 | + */ |
| 99 | + private static boolean isReadyToRun(String filePath) { |
| 100 | + if (filePath == null || filePath.trim().isEmpty()) { |
| 101 | + System.err.println("The path file cannot be empty or null"); |
| 102 | + return false; |
| 103 | + } |
| 104 | + |
| 105 | + Path path = Paths.get(filePath); |
| 106 | + |
| 107 | + // verify is file exist |
| 108 | + if (!Files.exists(path)) { |
| 109 | + System.out.println("File not found: " + filePath); |
| 110 | + return false; |
| 111 | + } |
| 112 | + |
| 113 | + // verify if it is a regular file (not directory) |
| 114 | + if (!Files.isRegularFile(path)) { |
| 115 | + System.out.println("The path file is not regular path (maybe directory path): " + filePath); |
| 116 | + return false; |
| 117 | + } |
| 118 | + |
| 119 | + // verify read permissions |
| 120 | + if (!Files.isReadable(path)) { |
| 121 | + System.out.println("Do not have read permissions: " + filePath); |
| 122 | + return false; |
| 123 | + } |
| 124 | + |
| 125 | + // verify .py extension |
| 126 | + String fileName = path.getFileName().toString(); |
| 127 | + if (!fileName.endsWith(".py")) { |
| 128 | + return false; |
| 129 | + } |
| 130 | + |
| 131 | + // verify if the file is not empty (optional) |
| 132 | + try { |
| 133 | + if (Files.size(path) == 0) { |
| 134 | + System.out.println("WANING: File is empty: " + filePath); |
| 135 | + // not return false, only warning |
| 136 | + } |
| 137 | + } catch (IOException e) { |
| 138 | + System.err.println("Error to verify file size: " + e.getMessage()); |
| 139 | + } |
| 140 | + |
| 141 | + return true; |
| 142 | + } |
| 143 | + |
| 144 | + |
| 145 | + /** |
| 146 | + * Imprimir ayuda |
| 147 | + */ |
| 148 | + private static void printHelp() { |
| 149 | + System.out.println("📚 " + APP_NAME + " - Ejecutor de scripts Python desde Java\n"); |
| 150 | + printUsage(); |
| 151 | + |
| 152 | + System.out.println("\n📋 OPCIONES DISPONIBLES:"); |
| 153 | + System.out.println(" script.py Script Python a ejecutar (obligatorio para ejecución)"); |
| 154 | + System.out.println(" [arg1 arg2 ...] Argumentos para el script Python"); |
| 155 | + System.out.println(" -v, --venv RUTA Usar entorno virtual en la RUTA especificada"); |
| 156 | + System.out.println(" -l, --list-envs Listar entornos virtuales configurados"); |
| 157 | + System.out.println(" -c, --create-env NOMBRE Crear nuevo entorno virtual"); |
| 158 | + System.out.println(" --python VERS Versión de Python (ej: 3, 3.9)"); |
| 159 | + System.out.println(" --install PKG... Instalar paquetes al crear entorno"); |
| 160 | + System.out.println(" -h, --help Mostrar esta ayuda"); |
| 161 | + |
| 162 | + System.out.println("\n🔧 SEPARADOR DE ARGUMENTOS:"); |
| 163 | + System.out.println(" -- Separa argumentos de Java de los de Python"); |
| 164 | + System.out.println(" Ej: app.jar script.py --venv myenv -- arg1 arg2"); |
| 165 | + |
| 166 | + System.out.println("\n💡 EJEMPLOS DE USO:"); |
| 167 | + System.out.println(" Ejecutar script sin entorno virtual:"); |
| 168 | + System.out.println(" java -jar app.jar \"C:\\scripts\\mi_script.py\" \"param1\" \"param2\""); |
| 169 | + System.out.println(""); |
| 170 | + System.out.println(" Ejecutar script con entorno virtual:"); |
| 171 | + System.out.println(" java -jar app.jar \"C:\\scripts\\horoscope.py\" \"aries\" --venv \"C:\\venvs\\horoscope_venv\""); |
| 172 | + System.out.println(""); |
| 173 | + System.out.println(" Crear entorno virtual con paquetes:"); |
| 174 | + System.out.println(" java -jar app.jar --create-env data-science --python 3.9 --install numpy pandas matplotlib"); |
| 175 | + System.out.println(""); |
| 176 | + System.out.println(" Listar entornos:"); |
| 177 | + System.out.println(" java -jar app.jar --list-envs"); |
| 178 | + } |
| 179 | + |
| 180 | + /** |
| 181 | + * Imprimir el uso |
| 182 | + */ |
| 183 | + private static void printUsage() { |
| 184 | + System.out.println("📖 USO:"); |
| 185 | + System.out.println(" java -jar java-python-executor.jar [OPCIONES] script.py [ARG_PYTHON...]"); |
| 186 | + System.out.println(""); |
| 187 | + System.out.println(" Ejemplo básico:"); |
| 188 | + System.out.println(" java -jar app.jar script.py arg1 arg2"); |
| 189 | + System.out.println(""); |
| 190 | + System.out.println(" Con entorno virtual:"); |
| 191 | + System.out.println(" java -jar app.jar script.py arg1 --venv /ruta/venv arg2"); |
| 192 | + } |
| 193 | + |
| 194 | + /** |
| 195 | + * Listar entornos virtuales guardados |
| 196 | + */ |
| 197 | + private static void listEnvironments() { |
| 198 | + System.out.println("📋 ENTORNOS VIRTUALES CONFIGURADOS\n"); |
| 199 | + |
| 200 | + PythonService service = new PythonService(); |
| 201 | + Map<String, String> envs = service.listVenvs(); |
| 202 | + |
| 203 | + if (envs.isEmpty()) { |
| 204 | + System.out.println("No hay entornos configurados."); |
| 205 | + System.out.println("Usa: java -jar app.jar --create-env <nombre>"); |
| 206 | + return; |
| 207 | + } |
| 208 | + |
| 209 | + System.out.printf("%-20s %-40s %s%n", "Nombre", "Ruta", "Estado"); |
| 210 | + System.out.println("-".repeat(70)); |
| 211 | + |
| 212 | + envs.forEach((name, path) -> { |
| 213 | + boolean valid = service.validateVenv(name); |
| 214 | + String status = valid ? "✅ VÁLIDO" : "❌ NO VÁLIDO"; |
| 215 | + System.out.printf("%-20s %-40s %s%n", name, path, status); |
| 216 | + }); |
| 217 | + } |
| 218 | + |
| 219 | + /** |
| 220 | + * Crear entorno virtual |
| 221 | + * @param cli Objeto del tipo {@code CommandLineArgs} |
| 222 | + */ |
| 223 | + private static void createEnvironment(CommandLineArgs cli) { |
| 224 | + if (cli.getEnvName() == null) { |
| 225 | + System.err.println("Error: Debes especificar un nombre para el entorno."); |
| 226 | + System.out.println("Uso: --create-env <nombre> [--python <version>] [--install pkg1 pkg2]"); |
| 227 | + System.exit(1); |
| 228 | + } |
| 229 | + |
| 230 | + System.out.println("🛠️ CREANDO ENTORNO VIRTUAL: " + cli.getEnvName() + "\n"); |
| 231 | + |
| 232 | + PythonService service = new PythonService(); |
| 233 | + |
| 234 | + String pythonVersion = cli.getPythonVersion() != null ? |
| 235 | + cli.getPythonVersion() : "3"; |
| 236 | + |
| 237 | + String[] packages = cli.getPackages().toArray(new String[0]); |
| 238 | + |
| 239 | + ExecutionResult result = service.setupVenv( |
| 240 | + cli.getEnvName(), |
| 241 | + "venvs", // Directorio base relativo |
| 242 | + pythonVersion, |
| 243 | + packages |
| 244 | + ); |
| 245 | + |
| 246 | + printResult(result); |
| 247 | + |
| 248 | + if (result.isSuccess()) { |
| 249 | + System.out.println("\n🎉 Entorno creado exitosamente!"); |
| 250 | + System.out.println("Para usarlo:"); |
| 251 | + System.out.println(" java -jar app.jar script.py --venv venvs/" + cli.getEnvName()); |
| 252 | + } |
| 253 | + } |
| 254 | + |
| 255 | + /** |
| 256 | + * Ejecutar el script de python |
| 257 | + * @param cli Objeto del tipo {@code CommandLineArgs} |
| 258 | + */ |
| 259 | + private static void executeScript(CommandLineArgs cli) { |
| 260 | + System.out.println("╔══════════════════════════════════════════════════════╗"); |
| 261 | + System.out.println("║ EJECUTANDO SCRIPT PYTHON ║"); |
| 262 | + System.out.println("╚══════════════════════════════════════════════════════╝\n"); |
| 263 | + |
| 264 | + File scriptFile = new File(cli.getScriptPath()); |
| 265 | + |
| 266 | + if (!scriptFile.exists()) { |
| 267 | + System.err.println("❌ Error: Script no encontrado: " + cli.getScriptPath()); |
| 268 | + System.exit(1); |
| 269 | + } |
| 270 | + |
| 271 | + if (!scriptFile.getName().endsWith(".py")) { |
| 272 | + System.err.println("⚠️ Advertencia: El archivo no parece ser un script Python (.py)"); |
| 273 | + } |
| 274 | + |
| 275 | + // Mostrar información de la ejecución |
| 276 | + System.out.println("📄 Script: " + scriptFile.getAbsolutePath()); |
| 277 | + System.out.println("📂 Directorio: " + scriptFile.getParent()); |
| 278 | + System.out.println("🔧 Argumentos para Python: " + cli.getScriptArgs()); |
| 279 | + |
| 280 | + PythonRunner runner = new PythonRunner(); |
| 281 | + |
| 282 | + try { |
| 283 | + ExecutionResult result; |
| 284 | + |
| 285 | + if (cli.hasVenv()) { |
| 286 | + System.out.println("🐍 Entorno virtual: " + cli.getVenvPath()); |
| 287 | + result = runner.runPythonScriptWithVenv( |
| 288 | + cli.getVenvPath(), |
| 289 | + scriptFile.getAbsolutePath(), |
| 290 | + cli.getScriptArgs() |
| 291 | + ); |
| 292 | + } else { |
| 293 | + System.out.println("🐍 Usando Python del sistema"); |
| 294 | + result = runner.runPythonScript( |
| 295 | + scriptFile.getAbsolutePath(), |
| 296 | + cli.getScriptArgs() |
| 297 | + ); |
| 298 | + } |
| 299 | + |
| 300 | + printResult(result); |
| 301 | + |
| 302 | + // Código de salida apropiado |
| 303 | + System.exit(result.getExitCode()); |
| 304 | + |
| 305 | + } catch (Exception e) { |
| 306 | + System.err.println("💥 Error crítico: " + e.getMessage()); |
| 307 | + e.printStackTrace(); |
| 308 | + System.exit(1); |
| 309 | + } |
| 310 | + } |
| 311 | +} |
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