Batch file status based On PID(process id) example

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This is TestBatch.bat JSP file and it is used as the input for the application.

@echo off tasklist /FI  "PID eq 8924" /NH /v > TEST_BATCH.log exit

This is BatchFileStatus.java file having the source code to execute business logic.

package com.cv.java.batch; import java.io.BufferedReader; import java.io.File; import java.io.FileNotFoundException; import java.io.FileReader; import java.io.IOException; import java.util.Timer; import java.util.TimerTask; /**  * @author cvkodam  *  */ public class BatchFileStatus {   /**    *    */   public BatchFileStatus() {   }   /**    * @param args    */   public static void main(String[] args) {     System.out.println("Control entered into main(-) method!!!");     final String batchFileName = "TestBatch.bat";     String bFile = ClassLoader.getSystemResource(batchFileName).getPath();     if (bFile != null) {       if (bFile.startsWith("/")) {         bFile = bFile.replaceAll("/", "//");         bFile = bFile.substring(2, bFile.lastIndexOf("//")+2);       }     }     String splitTarget = bFile;     String[] split = splitTarget.split("target");     String firstDir = split[0];     final String file = bFile;     final String fileName = firstDir;     Timer timer = new Timer();     TimerTask hourlyTask = new TimerTask() {       @Override       public void run() {         try {           Runtime.getRuntime().exec("cmd /c start " + file+batchFileName);           String logFileName = fileName+"TEST_BATCH.log";           boolean flag = isFileExist(logFileName);           if (flag) {             BufferedReader br = new BufferedReader(new FileReader(logFileName));             readLogFile(br);           }         } catch (Exception ioException) {           System.out.println(ioException.getMessage());         }       }     };     // schedule the task to run starting now and then every hour...     timer.schedule(hourlyTask, 0l, 1000 * 01 * 60);   }   private static boolean isFileExist(String propFileName) {     File file = new File(propFileName);     if (file.exists()) {       return true;     }     return false;   }   public static void readLogFile(BufferedReader br) {     readContentInsideFile(br);   }   private static void readContentInsideFile(BufferedReader br) {     // Open the file     try {       String line = null;       boolean flag = false;       // Read File Line By Line       while ((line = br.readLine()) != null) {         // Print the content on the LOGGER         if (line != null && line.length() > 1) {           if (line.contains("Running")||line.contains("Console")) {             flag = true;             // System.out.println("line is : : " + line);           }         }       }       if (!flag) {         System.out.println("Batch file is down...");       } else {         System.out.println("Batch file is running...");       }     } catch (FileNotFoundException e) {       e.printStackTrace();     } catch (IOException e) {       e.printStackTrace();     } finally {       // Close the input stream       try {         if (br != null)           br.close();       } catch (IOException e) {         e.printStackTrace();       }     }   } }

This is pom.xml file having the entries of dependency jars and information to build the application .

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>com.cv.java.batch</groupId> <artifactId>BatchFileStatusBasedOnPID</artifactId> <version>1.0</version> </project>

This is log4j.properties file having the entries for logging the information into the console/file.

#By default enabling Console appender # Root logger option log4j.rootLogger=INFO, stdout # Redirect log messages to console log4j.appender.stdout=org.apache.log4j.ConsoleAppender log4j.appender.stdout.Target=System.out log4j.appender.stdout.layout=org.apache.log4j.PatternLayout log4j.appender.stdout.layout.ConversionPattern=%-5p [%c]:%L -->> %m%n # Redirect log messages to a log file #log4j.appender.file=org.apache.log4j.RollingFileAppender #log4j.appender.file.File=C:\servlet-application.log #log4j.appender.file.MaxFileSize=5MB #log4j.appender.file.MaxBackupIndex=10 #log4j.appender.file.layout=org.apache.log4j.PatternLayout #log4j.appender.file.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss} %-5p %c{1}:%L - %m%n