package com.xxl.job.core.util;
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import com.xxl.job.core.log.XxlJobLogger;
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import org.apache.commons.exec.CommandLine;
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import org.apache.commons.exec.DefaultExecutor;
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import org.apache.commons.exec.PumpStreamHandler;
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import java.io.FileOutputStream;
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import java.io.IOException;
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/**
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* 1、内嵌编译器如"PythonInterpreter"无法引用扩展包,因此推荐使用java调用控制台进程方式"Runtime.getRuntime().exec()"来运行脚本(shell或python);
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* 2、因为通过java调用控制台进程方式实现,需要保证目标机器PATH路径正确配置对应编译器;
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* 3、暂时脚本执行日志只能在脚本执行结束后一次性获取,无法保证实时性;因此为确保日志实时性,可改为将脚本打印的日志存储在指定的日志文件上;
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* 4、python 异常输出优先级高于标准输出,体现在Log文件中,因此推荐通过logging方式打日志保持和异常信息一致;否则用prinf日志顺序会错乱
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*
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* Created by xuxueli on 17/2/25.
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*/
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public class ScriptUtil {
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/**
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* make script file
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*
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* @param scriptFileName
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* @param content
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* @throws IOException
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*/
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public static void markScriptFile(String scriptFileName, String content) throws IOException {
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// make file, filePath/gluesource/666-123456789.py
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FileOutputStream fileOutputStream = null;
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try {
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fileOutputStream = new FileOutputStream(scriptFileName);
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fileOutputStream.write(content.getBytes("UTF-8"));
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fileOutputStream.close();
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} catch (Exception e) {
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throw e;
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}finally{
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if(fileOutputStream != null){
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fileOutputStream.close();
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}
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}
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}
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/**
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* 日志文件输出方式
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*
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* 优点:支持将目标数据实时输出到指定日志文件中去
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* 缺点:
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* 标准输出和错误输出优先级固定,可能和脚本中顺序不一致
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* Java无法实时获取
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*
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* @param command
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* @param scriptFile
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* @param logFile
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* @param params
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* @return
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* @throws IOException
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*/
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public static int execToFile(String command, String scriptFile, String logFile, String... params) throws IOException {
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// 标准输出:print (null if watchdog timeout)
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// 错误输出:logging + 异常 (still exists if watchdog timeout)
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// 标准输入
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FileOutputStream fileOutputStream = null; //
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try {
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fileOutputStream = new FileOutputStream(logFile, true);
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PumpStreamHandler streamHandler = new PumpStreamHandler(fileOutputStream, fileOutputStream, null);
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// command
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CommandLine commandline = new CommandLine(command);
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commandline.addArgument(scriptFile);
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if (params!=null && params.length>0) {
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commandline.addArguments(params);
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}
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// exec
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DefaultExecutor exec = new DefaultExecutor();
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exec.setExitValues(null);
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exec.setStreamHandler(streamHandler);
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int exitValue = exec.execute(commandline); // exit code: 0=success, 1=error
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return exitValue;
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} catch (Exception e) {
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XxlJobLogger.log(e);
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return -1;
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} finally {
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if (fileOutputStream != null) {
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try {
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fileOutputStream.close();
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} catch (IOException e) {
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XxlJobLogger.log(e);
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}
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}
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}
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}
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}
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