diff options
Diffstat (limited to 'bcprov/src/main/java/org/bouncycastle/util/encoders/BufferedEncoder.java')
-rw-r--r-- | bcprov/src/main/java/org/bouncycastle/util/encoders/BufferedEncoder.java | 96 |
1 files changed, 0 insertions, 96 deletions
diff --git a/bcprov/src/main/java/org/bouncycastle/util/encoders/BufferedEncoder.java b/bcprov/src/main/java/org/bouncycastle/util/encoders/BufferedEncoder.java deleted file mode 100644 index 60a098d..0000000 --- a/bcprov/src/main/java/org/bouncycastle/util/encoders/BufferedEncoder.java +++ /dev/null @@ -1,96 +0,0 @@ -package org.bouncycastle.util.encoders; - - -/** - * A buffering class to allow translation from one format to another to - * be done in discrete chunks. - */ -public class BufferedEncoder -{ - protected byte[] buf; - protected int bufOff; - - protected Translator translator; - - /** - * @param translator the translator to use. - * @param bufSize amount of input to buffer for each chunk. - */ - public BufferedEncoder( - Translator translator, - int bufSize) - { - this.translator = translator; - - if ((bufSize % translator.getEncodedBlockSize()) != 0) - { - throw new IllegalArgumentException("buffer size not multiple of input block size"); - } - - buf = new byte[bufSize]; - bufOff = 0; - } - - public int processByte( - byte in, - byte[] out, - int outOff) - { - int resultLen = 0; - - buf[bufOff++] = in; - - if (bufOff == buf.length) - { - resultLen = translator.encode(buf, 0, buf.length, out, outOff); - bufOff = 0; - } - - return resultLen; - } - - public int processBytes( - byte[] in, - int inOff, - int len, - byte[] out, - int outOff) - { - if (len < 0) - { - throw new IllegalArgumentException("Can't have a negative input length!"); - } - - int resultLen = 0; - int gapLen = buf.length - bufOff; - - if (len > gapLen) - { - System.arraycopy(in, inOff, buf, bufOff, gapLen); - - resultLen += translator.encode(buf, 0, buf.length, out, outOff); - - bufOff = 0; - - len -= gapLen; - inOff += gapLen; - outOff += resultLen; - - int chunkSize = len - (len % buf.length); - - resultLen += translator.encode(in, inOff, chunkSize, out, outOff); - - len -= chunkSize; - inOff += chunkSize; - } - - if (len != 0) - { - System.arraycopy(in, inOff, buf, bufOff, len); - - bufOff += len; - } - - return resultLen; - } -} |