Package java.util.zip

Examples of java.util.zip.Adler32.update()

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                byte []data = new byte[pageSize];
                if( recoveryFile.read(data, 0, pageSize) != pageSize ) {
                    // Invalid recovery record, Could not fully read the data". Probably due to a partial write to the recovery buffer
                    return nextTxId;
                }
                checksum.update(data, 0, pageSize);
                batch.put(offset, data);
            }
        } catch (Exception e) {
            // If an error occurred it was cause the redo buffer was not full written out correctly.. so don't redo it.
            // as the pages should still be consistent.
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            byte data[] = new byte[size];
            reader.readFully(offset+BATCH_CONTROL_RECORD_SIZE, data);

            Checksum checksum = new Adler32();
            checksum.update(data, 0, data.length);

            if( expectedChecksum!=checksum.getValue() ) {
                return -1;
            }
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                buff.reset();
                buff.skip(5+Journal.BATCH_CONTROL_RECORD_MAGIC.length);
                buff.writeInt(sequence.getLength()-Journal.BATCH_CONTROL_RECORD_SIZE);
                if( journal.isChecksum() ) {
                  Checksum checksum = new Adler32();
                  checksum.update(sequence.getData(), sequence.getOffset()+Journal.BATCH_CONTROL_RECORD_SIZE, sequence.getLength()-Journal.BATCH_CONTROL_RECORD_SIZE);
                  buff.writeLong(checksum.getValue());
                }

                // Now do the 1 big write.
                file.seek(wb.offset);
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        header.putInt(blkId) ;
        header.flip() ;
        channel.write(header) ;
       
        Adler32 adler = new Adler32() ;
        adler.update(header.array()) ;

        if ( len > 0 )
        {
            // Make buffer include it's full length.
            // [TxDEV:TODO] This is the full buffer, junk and all.
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            for ( int i = len ; i < bufferCapacity ; i++ )
                buffer.put(i, (byte)0) ;
           
            // Write all bytes
            channel.write(buffer) ;
            adler.update(buffer.array()) ;
           
            buffer.position(bufferPosition) ;
            buffer.limit(bufferLimit) ;
        }
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        int len     = header.getInt() ;
        int ref     = header.getInt() ;
        int blockId = header.getInt() ;
       
        Adler32 adler = new Adler32() ;
        adler.update(header.array()) ;

        ByteBuffer bb = ByteBuffer.allocate(len) ;
        lenRead = channel.read(bb) ;
        if ( lenRead != len)
            throw new TDBTransactionException("Failed to read the journal entry: wanted "+len+" bytes, got "+lenRead) ;
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        ByteBuffer bb = ByteBuffer.allocate(len) ;
        lenRead = channel.read(bb) ;
        if ( lenRead != len)
            throw new TDBTransactionException("Failed to read the journal entry: wanted "+len+" bytes, got "+lenRead) ;
        adler.update(bb.array()) ;
        bb.rewind() ;
        // checksum
        crcTrailer.clear() ;
        lenRead = channel.read(crcTrailer) ;
        if ( lenRead != SizeofCRC )
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        long start = System.currentTimeMillis();
        Adler32 crc = new Adler32();
        byte[] data = new byte[BATCH_SIZE];
        long iter = dataSize / BATCH_SIZE;
        for (long i = 0; i < iter; i++) {
            crc.update(data);
        }
        crc.getValue();
        System.out.println("Adler took " + new TimeValue(System.currentTimeMillis() - start));
    }
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    SortedSet<JClassType> cssResourceSubtypes = computeOperableTypes(logger);

    if (classPrefix == null) {
      Adler32 checksum = new Adler32();
      for (JClassType type : cssResourceSubtypes) {
        checksum.update(Util.getBytes(type.getQualifiedSourceName()));
      }
      classPrefix = "G"
          + Long.toString(checksum.getValue(), Character.MAX_RADIX);
    }
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            byte data[] = new byte[size];
            reader.readFully(offset+BATCH_CONTROL_RECORD_SIZE, data);

            Checksum checksum = new Adler32();
            checksum.update(data, 0, data.length);

            if( expectedChecksum!=checksum.getValue() ) {
                return -1;
            }
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