Examples of sun.misc.BASE64Decoder

sun.misc.BASE64Decoder
This class implements a BASE64 Character decoder as specified in RFC1521. This RFC is part of the MIME specification which is published by the Internet Engineering Task Force (IETF). Unlike some other encoding schemes there is nothing in this encoding that tells the decoder where a buffer starts or stops, so to use it you will need to isolate your encoded data into a single chunk and then feed them this decoder. The simplest way to do that is to read all of the encoded data into a string and then use:
```
 byte    mydata[]; BASE64Decoder base64 = new BASE64Decoder(); mydata = base64.decodeBuffer(bufferString); 
```
This will decode the String in bufferString and give you an array of bytes in the array myData. On errors, this class throws a CEFormatException with the following detail strings:
```
 "BASE64Decoder: Not enough bytes for an atom." 
```
@author Chuck McManis @see CharacterEncoder @see BASE64Decoder

    }


    public String getAuthHeader (String token) throws IOException {
        byte[] input = null;
        if (token != null)
            input = (new BASE64Decoder()).decodeBuffer(token);
        byte[] b = getNextToken (crdHandle, input);
        if (b == null)
            throw new IOException ("Internal authentication error");
        return (new B64Encoder()).encode (b);
    }

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        if (infos == null) {
            throw new SecurityException("cannot verify signature block file " +
                                        name);
        }


        BASE64Decoder decoder = new BASE64Decoder();


        CodeSigner[] newSigners = getSigners(infos, block);


        // make sure we have something to do all this work for...
        if (newSigners == null)

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        is.skip(len);


        // Now, that data is supposed to be a single X.509 certificate or
        // X.509 CRL or PKCS#7 formatted data... Base64 encoded.
        // Decode into binary and return the result.
        BASE64Decoder decoder = new BASE64Decoder();
        return decoder.decodeBuffer(strBuf.toString());
    }

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    public ManifestEntryVerifier(Manifest man)
    {
        createdDigests = new HashMap<String, MessageDigest>(11);
        digests = new ArrayList<MessageDigest>();
        manifestHashes = new ArrayList<byte[]>();
        decoder = new BASE64Decoder();
        this.man = man;
    }

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        if ((attr = attrs.get(JAVA_ATTRIBUTES[REF_ADDR])) != null) {


            String val, posnStr, type;
            char separator;
            int start, sep, posn;
            BASE64Decoder decoder = null;


            ClassLoader cl = helper.getURLClassLoader(codebases);


            /*
             * Temporary Vector for decoded RefAddr addresses - used to ensure
             * unordered addresses are correctly re-ordered.
             */
            Vector refAddrList = new Vector();
            refAddrList.setSize(attr.size());


            for (NamingEnumeration vals = attr.getAll(); vals.hasMore(); ) {


                val = (String)vals.next();


                if (val.length() == 0) {
                    throw new InvalidAttributeValueException(
                        "malformed " + JAVA_ATTRIBUTES[REF_ADDR] + " attribute - "+
                        "empty attribute value");
                }
                // first character denotes encoding separator
                separator = val.charAt(0);
                start = 1;  // skip over separator


                // extract position within Reference
                if ((sep = val.indexOf(separator, start)) < 0) {
                    throw new InvalidAttributeValueException(
                        "malformed " + JAVA_ATTRIBUTES[REF_ADDR] + " attribute - " +
                        "separator '" + separator + "'" + "not found");
                }
                if ((posnStr = val.substring(start, sep)) == null) {
                    throw new InvalidAttributeValueException(
                        "malformed " + JAVA_ATTRIBUTES[REF_ADDR] + " attribute - " +
                        "empty RefAddr position");
                }
                try {
                    posn = Integer.parseInt(posnStr);
                } catch (NumberFormatException nfe) {
                    throw new InvalidAttributeValueException(
                        "malformed " + JAVA_ATTRIBUTES[REF_ADDR] + " attribute - " +
                        "RefAddr position not an integer");
                }
                start = sep + 1; // skip over position and trailing separator


                // extract type
                if ((sep = val.indexOf(separator, start)) < 0) {
                    throw new InvalidAttributeValueException(
                        "malformed " + JAVA_ATTRIBUTES[REF_ADDR] + " attribute - " +
                        "RefAddr type not found");
                }
                if ((type = val.substring(start, sep)) == null) {
                    throw new InvalidAttributeValueException(
                        "malformed " + JAVA_ATTRIBUTES[REF_ADDR] + " attribute - " +
                        "empty RefAddr type");
                }
                start = sep + 1; // skip over type and trailing separator


                // extract content
                if (start == val.length()) {
                    // Empty content
                    refAddrList.setElementAt(new StringRefAddr(type, null), posn);
                } else if (val.charAt(start) == separator) {
                    // Double separators indicate a non-StringRefAddr
                    // Content is a Base64-encoded serialized RefAddr


                    ++start;  // skip over consecutive separator
                    // %%% RL: exception if empty after double separator


                    if (decoder == null)
                        decoder = new BASE64Decoder();


                    RefAddr ra = (RefAddr)
                        deserializeObject(
                            decoder.decodeBuffer(val.substring(start)),
                            cl);


                    refAddrList.setElementAt(ra, posn);
                } else {
                    // Single separator indicates a StringRefAddr

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        try {
            String response;
            byte[] incoming = null;
            String[] parts = raw.split("\\s+");
            if (parts.length > 1) {
                incoming = new BASE64Decoder().decodeBuffer(parts[1]);
            }
            response = scheme + " " + new B64Encoder().encode(
                        incoming==null?firstToken():nextToken(incoming));


            conn.setAuthenticationProperty(getHeaderName(), response);

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            throw new IOException("Unable to read InputStream: " +
                                  ioe1.getMessage());
        }
        if (line.equals(X509Factory.BEGIN_CERT)) {
            /* stream appears to be hex-encoded bytes */
            BASE64Decoder         decoder   = new BASE64Decoder();
            ByteArrayOutputStream decstream = new ByteArrayOutputStream();
            try {
                while ((line = certBufferedReader.readLine()) != null) {
                    if (line.equals(X509Factory.END_CERT)) {
                        der = new DerValue(decstream.toByteArray());
                        break;
                    } else {
                        decstream.write(decoder.decodeBuffer(line));
                    }
                }
            } catch (IOException ioe2) {
                throw new IOException("Unable to read InputStream: "
                                      + ioe2.getMessage());

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        return new HexBinary(s);
    }


    public static byte[] convertTobase64Binary(String s) throws Exception{
        //using the Sun's base64 decoder that should come with the JRE
        return new BASE64Decoder().decodeBuffer(s);
    }

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    return DiscoInputReplicaProtocol.raw + DiscoInputReplicaProtocol.URL_SCHEME
            + removeNewlines((new BASE64Encoder()).encode(str.getBytes()));
  }


  public static String decodeRaw(final String str) throws IOException {
    return new String(new BASE64Decoder().decodeBuffer(str));
  }

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  public static String decodeRaw(final String str) throws IOException {
    return new String(new BASE64Decoder().decodeBuffer(str));
  }


  public static String decodeRaw(final ReadableByteChannel channel) throws IOException {
    return new String(new BASE64Decoder().decodeBuffer(Channels.newInputStream(channel)));
  }

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