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FileDumper6.javaAPI DocExample4900Sun Mar 28 19:09:02 BST 1999None

FileDumper6

public class FileDumper6 extends Object

Fields Summary
public static final int
ASC
public static final int
DEC
public static final int
HEX
public static final int
SHORT
public static final int
INT
public static final int
LONG
public static final int
FLOAT
public static final int
DOUBLE
Constructors Summary
Methods Summary
public static voiddump(java.io.InputStream in, java.io.OutputStream out, int mode, boolean bigEndian, boolean deflated, boolean gzipped, java.lang.String password)


           
           
     
    
    // The reference variable in may point to several different objects
    // within the space of the next few lines. 
      
    if (password != null && !password.equals("")) {
      // create a key
      try {
        byte[] desKeyData = password.getBytes();
        DESKeySpec desKeySpec = new DESKeySpec(desKeyData);
        SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DES");
        SecretKey desKey = keyFactory.generateSecret(desKeySpec);

        // use Data Encryption Standard
        Cipher des = Cipher.getInstance("DES/ECB/PKCS5Padding");
        des.init(Cipher.DECRYPT_MODE, desKey);
        
        in = new CipherInputStream(in, des);
      }
      catch (GeneralSecurityException e) {
        throw new IOException(e.getMessage());
      }
    }
    
    if (deflated) {
      in = new InflaterInputStream(in);
    }
    else if (gzipped) {
      in = new GZIPInputStream(in);
    }

    // could really pass to FileDumper3 at this point
    if (bigEndian) {
      DataInputStream din = new DataInputStream(in);
      switch (mode) {
        case HEX: 
          in = new HexFilter(in);
          break;
        case DEC: 
          in = new DecimalFilter(in);
          break;
        case INT: 
          in = new IntFilter(din);
          break;
        case SHORT: 
          in = new ShortFilter(din);
          break;
        case LONG: 
          in = new LongFilter(din);
          break;
        case DOUBLE: 
          in = new DoubleFilter(din);
          break;
        case FLOAT: 
          in = new FloatFilter(din);
          break;
        default:
      }
    }
    else {
      LittleEndianInputStream lin = new LittleEndianInputStream(in);
      switch (mode) {
        case HEX: 
          in = new HexFilter(in);
          break;
        case DEC: 
          in = new DecimalFilter(in);
          break;
        case INT: 
          in = new LEIntFilter(lin);
          break;
        case SHORT: 
          in = new LEShortFilter(lin);
          break;
        case LONG: 
          in = new LELongFilter(lin);
          break;
        case DOUBLE: 
          in = new LEDoubleFilter(lin);
          break;
        case FLOAT: 
          in = new LEFloatFilter(lin);
          break;
        default:  
      }
      
    }   
    
    StreamCopier.copy(in, out);
    in.close();
public static voiddump(java.io.InputStream in, java.io.OutputStream out, java.lang.String inputEncoding, java.lang.String outputEncoding, boolean deflated, boolean gzipped, java.lang.String password)

    
    if (inputEncoding == null || inputEncoding.equals("")) {
      dump(in, out, ASC, true, deflated, gzipped, password);
      return;
    }
    
    if (outputEncoding == null || outputEncoding.equals("")) {
      outputEncoding = System.getProperty("file.encoding", "8859_1");
    }
    
    // Note that the reference variable in
    // may point to several different objects
    // within the space of the next few lines
        
    if (password != null && !password.equals("")) {
      try {
        // create a key
        byte[] desKeyData = password.getBytes();
        DESKeySpec desKeySpec = new DESKeySpec(desKeyData);
        SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DES");
        SecretKey desKey = keyFactory.generateSecret(desKeySpec);

        // use Data Encryption Standard
        Cipher des = Cipher.getInstance("DES/ECB/PKCS5Padding");
        des.init(Cipher.DECRYPT_MODE, desKey);
          
        in = new CipherInputStream(in, des);
      }
      catch (GeneralSecurityException e) {
        throw new IOException(e.getMessage());
      }
    }        
        
    if (deflated) {
      in = new InflaterInputStream(in);
    }
    else if (gzipped) {
      in = new GZIPInputStream(in);
    }
      
    InputStreamReader isr = new InputStreamReader(in, inputEncoding);
    OutputStreamWriter osw = new OutputStreamWriter(out, outputEncoding);  
        
    int c;
    while ((c = isr.read()) != -1) {
      osw.write(c);
    }
    isr.close();
    osw.close();