How to process the custom file by descending order using file connector

Hi,

Have to process the custom file by ascending order.

The scenario is below

     properties/global.properties:
 
 file.name=Test_%y%y%y%y%M%M%d%d.txt
 
 The file name convention is  Test_yyyyMMdd.txt

The folder contains the list of files below

    Test_20180105.txt
     Test_20180104.txt
     Test_20180103.txt

 <file:connector name="File" autoDelete="true" streaming="true" validateConnections="true" doc:name="File">
         <service-overrides messageReceiver="com.boi.file.receiver.BOIFileMessageReceiver"/> 
      </file:connector>
      <flow name="sample-fileFlow">
          <<file:inbound-endpoint path="D:\temp\input" connector-ref="File" responseTimeout="10000" doc:name="File" comparator="com.boi.file.comparator.FileComparator" reverseOrder="false"/>     
          <logger message="#[groovy:message.getPayloadAsString()]" level="INFO" doc:name="Logger"/>
      </flow>



 public class BOIFileMessageReceiver extends FileMessageReceiver {
      
     public BOIFileMessageReceiver(Connector connector, FlowConstruct flowConstruct, InboundEndpoint endpoint,
             String readDir, String moveDir, String moveToPattern, long frequency) throws CreateException {
         super(connector, flowConstruct, endpoint, readDir, moveDir, moveToPattern, frequency);
     }
 
     protected void basicListFiles(File currentDirectory, List<File> discoveredFiles) {
         File[] files = currentDirectory.listFiles(new MyFileNameFilter());
 
         if (files == null) {
             return;
         }
 
         for (File file : files) {
             if (!file.isDirectory()) {
                 discoveredFiles.add(file);
             } else {
                 if (((FileConnector) connector).isRecursive()) {
                     this.basicListFiles(file, discoveredFiles);
                 }
             }
         }
     }


   

  public static class MyFileNameFilter implements FilenameFilter {       
         String l_sFilePattern = BOIUtils.getFileName();
         
         @Override
         public boolean accept(File dir, String name) { 
             
             return name.matches(l_sFilePattern);
         }
     }

}

 public class BOIUtils {
 
     /**
      * 
      * @return
      */
     public static String getFileName() {
         String l_sFileName = "";
         try {
             Object l_objObject = new Object();
             Properties l_objProperties = new Properties();
             InputStream l_objInputStream = IOUtils.getResourceAsStream("properties/global.properties",
                     l_objObject.getClass());
             l_objProperties.load(l_objInputStream);
             l_sFileName = (String) l_objProperties.get("file.name");
             l_sFileName = resolveFileName(l_sFileName);
         } catch (Exception e) {
             org.apache.log4j.Logger.getLogger("Vijaya Ragavan Sangili ").log(org.apache.log4j.Priority.INFO,
                     " Error Occured :::", e);
         }
         return l_sFileName;
     }
     
     
     /**
      * 
      * @param pFileName
      * @return
      */
     public static String resolveFileName(String pFileName) {
 
         java.util.Calendar l_Calender = Calendar.getInstance();
         l_Calender.setTime((new Date()));
 
         String l_sOrgFileName = pFileName;
         if (pFileName == null || pFileName.length() == 0) {
             return "";
         }
         try {
 
             String l_sDay = String.valueOf((l_Calender.get(Calendar.DAY_OF_MONTH)));
             String l_sMonth = String.valueOf((l_Calender.get(Calendar.MONTH) + 1));
             String l_sYear = String.valueOf((l_Calender.get(Calendar.YEAR)));
             if (l_sDay.trim().length() < 2) {
                 l_sDay = "0" + l_sDay;
             }
             if (l_sMonth.trim().length() < 2) {
                 l_sMonth = "0" + l_sMonth;
             }
 
             l_sOrgFileName = l_sOrgFileName.replaceAll("%d%d", l_sDay);
             l_sOrgFileName = l_sOrgFileName.replaceAll("%M%M", l_sMonth);
             l_sOrgFileName = l_sOrgFileName.replaceAll("%y%y%y%y", l_sYear);
             l_sOrgFileName = l_sOrgFileName.replaceAll("%y%y", l_sYear.substring(2, 4));
 
         } catch (Exception e) {
             org.apache.log4j.Logger.getLogger("Vijaya Ragavan Sangili ").log(org.apache.log4j.Priority.INFO,
                     " Error Occured :::", e);
             return pFileName;
         }
         return l_sOrgFileName;
     }
 
 }

When i use the below piece of configuration the inbound file connector only picks the current date file

 <service-overrides messageReceiver="com.boi.file.receiver.BOIFileMessageReceiver"/> 

 

In the same way incase if the folder contains previous day files it has to process the file by ascending order and the order is

1.Test_20180103.txt 2.Test_20180104.txt 3.Test_20180105.txt

For that used the file comparator and the code is

 public class FileComparator implements Comparator<Object> {
     @Override
     public int compare(Object o1, Object o2) {
         File file1 = (File) o1;
         File file2 = (File) o2;
         
         long index1 = file1.lastModified();
         long index2 = file2.lastModified();
        
         if (index1 == index2) {
             return 0;
         } else if (index1 > index2) {
             return 1;
         } else {
             return -1;
         }
     }
 }

 <file:inbound-endpoint path="D:\temp\input" connector-ref="File" responseTimeout="10000" doc:name="File" comparator="com.boi.file.comparator.FileComparator" reverseOrder="false"/>

The below two combinations is working

1.To process the current date file
Configuration is :

         2.To process the file ascending order
 configuration is :
     <file:inbound-endpoint path="D:\temp\input" connector-ref="File" responseTimeout="10000" doc:name="File" **comparator="com.boi.file.comparator.FileComparator" reverseOrder="false"**/>

 

In my requirement it has to process the file by current date and incase if the folder contains previous day file then it has to process the file by ascending oder

But here it is not working

Could please someone help to solve this