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File searching in your system through in Java

File searching through java
Input    : File Name and the directory to which searching
Output : List of files

Main Class :

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package com.rakesh.codetalk.fileSearch;

import java.io.BufferedReader;
import java.io.File;
import java.io.InputStreamReader;
import java.util.ArrayList;

/**
 * @author Rakesh KR
 * @since  December 2K14
 */
public class FileSearchBO {
 
 public static void main(String argv[]) throws Exception{
  
  FileSearchDTO fileSearchDTO = new FileSearchDTO();
  FileSearchDAO fileSearchDAO = new FileSearchDAO();
  BufferedReader br           = new BufferedReader(new InputStreamReader(System.in));
  
  System.out.println("Enter the fileName to be searched : ");
  fileSearchDTO.setFileNameToSearch(br.readLine());
  
  System.out.println("Enter the directory to which search : ");
  fileSearchDAO.search(new File(br.readLine()), fileSearchDTO , new ArrayList<String>());
  
  if(fileSearchDTO.getResultFileList()!=null && !fileSearchDTO.getResultFileList().isEmpty()){
   
   System.out.println("\n\nFile Founded At : ");
   
   for(String files : fileSearchDTO.getResultFileList()){

    System.out.println(" "+files);

   }
  } else{
   System.out.println("Error : "+fileSearchDTO.getStatusString());
  }
  
 }
 
}


Supporting Classes : 
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package com.rakesh.codetalk.fileSearch;

import java.io.File;
import java.util.List;

/**
 * @author Rakesh KR
 * @since  December 2K14
 */
public class FileSearchDAO {
 
 public void search(File searchFile, FileSearchDTO fileSearchDTO , List<String> resultFileList){
  
  try{
      
   if(searchFile!=null){
    
    if(searchFile.isDirectory()){
     
     if(searchFile.canRead()){
      
      for(File file : searchFile.listFiles()){
       
       System.out.println(file);
       
       if(file.isDirectory()){
        search(file, fileSearchDTO, resultFileList);
       } else{
        if(fileSearchDTO.getFileNameToSearch().equalsIgnoreCase(file.getName())){
         resultFileList.add(file.getAbsolutePath());
        }
       }
       
      }
      
     } else{
      fileSearchDTO.setStatusString("No Permission to Read !!! File : "+searchFile.getAbsoluteFile());
     }
     
    } else{
     fileSearchDTO.setStatusString("Not a Directory !!! File : "+searchFile.getAbsoluteFile());
    }
    
   } else{
    fileSearchDTO.setStatusString("No such File !!! ");
   }
   
   if(resultFileList!=null && !resultFileList.isEmpty()){
    fileSearchDTO.setResultFileList(resultFileList);
    fileSearchDTO.setStatusString("File Searching Success !!! ");
   }
   
  } catch(Exception e){
   fileSearchDTO.setStatusString("Error in File Searching !!! ");
   e.printStackTrace();
  } finally{
   
   resultFileList = null;
   
  }
  
 }

}




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package com.rakesh.codetalk.fileSearch;

import java.io.File;
import java.util.List;

/**
 * @author Rakesh KR
 * @since  December 2K14
 */
public class FileSearchDTO {
 
 private File file;
 
 private String statusString;
 
 private String fileNameToSearch;
 
 private List<String> resultFileList;
 
 
 /**
  * @return the file
  */
 public File getFile() {
  return file;
 }

 /**
  * @param file the file to set
  */
 public void setFile(File file) {
  this.file = file;
 }

 /**
  * @return the statusString
  */
 public String getStatusString() {
  return statusString;
 }

 /**
  * @param statusString the statusString to set
  */
 public void setStatusString(String statusString) {
  this.statusString = statusString;
 }

 /**
  * @return the fileNameToSearch
  */
 public String getFileNameToSearch() {
  return fileNameToSearch;
 }

 /**
  * @param fileNameToSearch the fileNameToSearch to set
  */
 public void setFileNameToSearch(String fileNameToSearch) {
  this.fileNameToSearch = fileNameToSearch;
 }

 /**
  * @return the resultFileList
  */
 public List<String> getResultFileList() {
  return resultFileList;
 }

 /**
  * @param resultFileList the resultFileList to set
  */
 public void setResultFileList(List<String> resultFileList) {
  this.resultFileList = resultFileList;
 } 
  
}


Output Sample : 
Enter the fileName to be searched : 
Rakesh.txt
Enter the directory to which search : 
/media/rakesh/WorkZ/WorkZ/CodeTalk/

/media/rakesh/WorkZ/WorkZ/CodeTalk/Short URL
/media/rakesh/WorkZ/WorkZ/CodeTalk/JAVA
/media/rakesh/WorkZ/WorkZ/CodeTalk/JAVA/What is the difference between JVM, JDK & JRE
/media/rakesh/WorkZ/WorkZ/CodeTalk/JAVA/Why we Pass String array as argument to main method [JAVA]
/media/rakesh/WorkZ/WorkZ/CodeTalk/JAVA/Rakesh.txt
/media/rakesh/WorkZ/WorkZ/CodeTalk/Linux
/media/rakesh/WorkZ/WorkZ/CodeTalk/Linux/Installing Java 7 on Ubuntu .txt
/media/rakesh/WorkZ/WorkZ/CodeTalk/Linux/Install Google Chrome.txt
/media/rakesh/WorkZ/WorkZ/CodeTalk/Linux/Rakesh.txt
/media/rakesh/WorkZ/WorkZ/CodeTalk/Images
/media/rakesh/WorkZ/WorkZ/CodeTalk/Images/copy of Ct-logo-small.png
/media/rakesh/WorkZ/WorkZ/CodeTalk/Images/Ct-logo-small.png
/media/rakesh/WorkZ/WorkZ/CodeTalk/Images/CodeTalk2.png
/media/rakesh/WorkZ/WorkZ/CodeTalk/Images/jvm_jre_jdk.jpg
/media/rakesh/WorkZ/WorkZ/CodeTalk/Images/CCCCCCCCC.jpg
/media/rakesh/WorkZ/WorkZ/CodeTalk/Images/CodeTalk.jpg
/media/rakesh/WorkZ/WorkZ/CodeTalk/Images/Ct-logo-big.png


File Founded At : 
 /media/rakesh/WorkZ/WorkZ/CodeTalk/JAVA/Rakesh.txt
 /media/rakesh/WorkZ/WorkZ/CodeTalk/Linux/Rakesh.txt
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