359 * @param binaryData Array containing binaryData
360 * @return Encoded Base64 array
361 */
362 /**
363 * Encode a byte array in Base64 format and return an optionally
364 * wrapped line.
365 *
366 * @param binaryData <code>byte[]</code> data to be encoded
367 * @param length <code>int<code> length of wrapped lines; No wrapping if less than 4.
368 * @return a <code>String</code> with encoded data
369 */
370 public static final String encode(byte[] binaryData,int length) {
371 if (length < 4) {
372 length = Integer.MAX_VALUE;
373 }
374
375 if (binaryData == null) {
376 return null;
377 }
378
379 int lengthDataBits = binaryData.length * EIGHTBIT;
380 if (lengthDataBits == 0) {
381 return "";
382 }
383
384 int fewerThan24bits = lengthDataBits % TWENTYFOURBITGROUP;
385 int numberTriplets = lengthDataBits / TWENTYFOURBITGROUP;
386 int numberQuartet = fewerThan24bits != 0 ? numberTriplets + 1 : numberTriplets;
387 int quartesPerLine = length / 4;
388 int numberLines = (numberQuartet - 1) / quartesPerLine;
389 char encodedData[] = null;
390
391 encodedData = new char[numberQuartet * 4 + numberLines];
392
393 byte k = 0, l = 0, b1 = 0, b2 = 0, b3 = 0;
394 int encodedIndex = 0;
395 int dataIndex = 0;
396 int i = 0;
397
398 for (int line = 0; line < numberLines; line++) {
399 for (int quartet = 0; quartet < 19; quartet++) {
400 b1 = binaryData[dataIndex++];
401 b2 = binaryData[dataIndex++];
402 b3 = binaryData[dataIndex++];
403
404 l = (byte)(b2 & 0x0f);
405 k = (byte)(b1 & 0x03);
406
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359 * @param binaryData Array containing binaryData
360 * @return Encoded Base64 array
361 */
362 /**
363 * Encode a byte array in Base64 format and return an optionally
364 * wrapped line.
365 *
366 * @param binaryData <code>byte[]</code> data to be encoded
367 * @param length <code>int<code> length of wrapped lines; No wrapping if less than 4.
368 * @return a <code>String</code> with encoded data
369 */
370 public static final String encode(byte[] binaryData,int length) {
371 if (length < 4) {
372 length = Integer.MAX_VALUE;
373 }
374
375 if (binaryData == null) {
376 return null;
377 }
378
379 long lengthDataBits = ((long) binaryData.length) * ((long) EIGHTBIT);
380 if (lengthDataBits == 0L) {
381 return "";
382 }
383
384 long fewerThan24bits = lengthDataBits % ((long) TWENTYFOURBITGROUP);
385 int numberTriplets = (int) (lengthDataBits / TWENTYFOURBITGROUP);
386 int numberQuartet = fewerThan24bits != 0L ? numberTriplets + 1 : numberTriplets;
387 int quartesPerLine = length / 4;
388 int numberLines = (numberQuartet - 1) / quartesPerLine;
389 char encodedData[] = null;
390
391 encodedData = new char[numberQuartet * 4 + numberLines];
392
393 byte k = 0, l = 0, b1 = 0, b2 = 0, b3 = 0;
394 int encodedIndex = 0;
395 int dataIndex = 0;
396 int i = 0;
397
398 for (int line = 0; line < numberLines; line++) {
399 for (int quartet = 0; quartet < 19; quartet++) {
400 b1 = binaryData[dataIndex++];
401 b2 = binaryData[dataIndex++];
402 b3 = binaryData[dataIndex++];
403
404 l = (byte)(b2 & 0x0f);
405 k = (byte)(b1 & 0x03);
406
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