packetcable-driver/src/main/java/org/pcmm/utils/PCMMUtils.java

   1 /**
   2  @header@
   3  */
   4 package org.pcmm.utils;
   5
   6 import java.io.FileInputStream;
   7 import java.io.FileNotFoundException;
   8 import java.io.FileOutputStream;
   9 import java.io.IOException;
  10
  11 public class PCMMUtils {
  12
  13     public static void WriteBinaryDump(String rootFileName, byte[] buffer) {
  14         // Make this Unique
  15         String fileName = "/tmp/" + rootFileName + "-" + java.util.UUID.randomUUID() + ".bin";
  16         try {
  17
  18             System.out.println("Open fileName " + fileName);
  19             FileOutputStream outputStream = new FileOutputStream(fileName);
  20
  21             // write() writes as many bytes from the buffer
  22             // as the length of the buffer. You can also
  23             // use
  24             // write(buffer, offset, length)
  25             // if you want to write a specific number of
  26             // bytes, or only part of the buffer.
  27             outputStream.write(buffer);
  28
  29             // Always close files.
  30             outputStream.close();
  31
  32             System.out.println("Wrote " + buffer.length + " bytes");
  33         } catch (IOException ex) {
  34             System.out.println("Error writing file '" + fileName + "'");
  35             // Or we could just do this:
  36             // ex.printStackTrace();
  37         }
  38     }
  39
  40     public static byte[] ReadBinaryDump(String fileName) {
  41         // The name of the file to open.
  42         // String fileName = "COPSReportMessage.txt";
  43         try {
  44             FileInputStream inputStream = new FileInputStream(fileName);
  45             // Use this for reading the data.
  46             byte[] buffer = new byte[inputStream.available()];
  47             // read fills buffer with data and returns
  48             // the number of bytes read (which of course
  49             // may be less than the buffer size, but
  50             // it will never be more).
  51             int total = inputStream.read(buffer);
  52
  53             // Always close files.
  54             inputStream.close();
  55
  56             System.out.println("Read " + total + " bytes");
  57             return buffer;
  58         } catch (FileNotFoundException ex) {
  59             System.out.println("Unable to open file '" + fileName + "'");
  60         } catch (IOException ex) {
  61             System.out.println("Error reading file '" + fileName + "'");
  62             // Or we could just do this:
  63             // ex.printStackTrace();
  64         }
  65         return null;
  66     }
  67 }