Package com.jalios.io

Class NIOUtil

  • public class NIOUtil
extends java.lang.Object
    This class provides a set of static methods which perform various i/o operations based on the java.nio package.
    Since:
    jcms-5.0.0
    Author:
    Olivier Dedieu

    • Constructor Summary

      Constructors 
      Constructor Description
      NIOUtil()  

    • Method Summary

      All Methods Static Methods Concrete Methods 
      Modifier and Type Method Description
      static void clean​(java.nio.MappedByteBuffer buffer)  
      static void copyFile​(java.io.File f1, java.io.File f2)
      Copy f1 into f2 (mkdirs for f2).
      static void copyFile​(java.lang.String filename1, java.lang.String filename2)
      Copy filename1 into filename2 (mkdirs for filename2)
      static long countLines​(java.io.File file)
      Counts the line of the given file
      static boolean goToLine​(java.nio.ByteBuffer buffer, long line)
      Move the position of the given ByteBuffer to the given line.

      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    • Constructor Detail

      • NIOUtil

        public NIOUtil()

    • Method Detail

      • copyFile

        public static void copyFile​(java.lang.String filename1,
                            java.lang.String filename2)
                     throws java.io.IOException
        Copy filename1 into filename2 (mkdirs for filename2)
        Parameters:
        filename1 - the source file
        filename2 - the target file
        Throws:
        java.io.IOException - if an exception occurs
        Since:
        jcms-5.0.5

      • copyFile

        public static void copyFile​(java.io.File f1,
                            java.io.File f2)
                     throws java.io.IOException
        Copy f1 into f2 (mkdirs for f2). This method is about 25% faster than IOUtil.copyFile()
        Parameters:
        f1 - the source file
        f2 - the target file
        Throws:
        java.io.IOException - if an exception occurs
        Since:
        jcms-5.0.5

      • goToLine

        public static boolean goToLine​(java.nio.ByteBuffer buffer,
                               long line)
        Move the position of the given ByteBuffer to the given line.
        Parameters:
        buffer - the buffer to move the position.
        line - the line to be reached
        Returns:
        true if the line has been reached, false otherwite (line out of buffer size)
        Since:
        jcms-5.0.0

      • clean

        public static void clean​(java.nio.MappedByteBuffer buffer)
                  throws java.lang.Exception
        Throws:
        java.lang.Exception

      • countLines

        public static long countLines​(java.io.File file)
                       throws java.io.IOException
        Counts the line of the given file
        Parameters:
        file - the file
        Returns:
        the line count.
        Throws:
        java.io.IOException - if an exception occurs
        Since:
        jcms-10.0.8