/**
* Write an archive record to the archive, where the record may be inside of a larger array
* buffer. The buffer must be "offset plus record size" long.
*
* @param buf The buffer containing the record data to write.
* @param offset The offset of the record data within buf.
* @throws IOException on error
*/
public void writeRecord(byte[] buf, int offset) throws IOException {
if (outStream == null) {
if (inStream == null) {
throw new IOException("Output buffer is closed");
}
throw new IOException("writing to an input buffer");
}
if ((offset + recordSize) > buf.length) {
throw new IOException(
"record has length '"
+ buf.length
+ "' with offset '"
+ offset
+ "' which is less than the record size of '"
+ recordSize
+ "'");
}
if (currRecIdx >= recsPerBlock) {
writeBlock();
}
System.arraycopy(buf, offset, blockBuffer, (currRecIdx * recordSize), recordSize);
currRecIdx++;
}
/**
* Write an archive record to the archive.
*
* @param record The record data to write to the archive.
* @throws IOException on error
*/
public void writeRecord(byte[] record) throws IOException {
if (outStream == null) {
if (inStream == null) {
throw new IOException("Output buffer is closed");
}
throw new IOException("writing to an input buffer");
}
if (record.length != recordSize) {
throw new IOException(
"record to write has length '"
+ record.length
+ "' which is not the record size of '"
+ recordSize
+ "'");
}
if (currRecIdx >= recsPerBlock) {
writeBlock();
}
System.arraycopy(record, 0, blockBuffer, (currRecIdx * recordSize), recordSize);
currRecIdx++;
}
/** Flush the current data block if it has any data in it. */
private void flushBlock() throws IOException {
if (outStream == null) {
throw new IOException("writing to an input buffer");
}
if (currRecIdx > 0) {
writeBlock();
}
}