byte[] writtenBytes() {
if (writtenForm == null) {
ByteArrayOutputStream out = new ByteArrayOutputStream();
try {
IoUtils.writeInt(out, statementId);
out.write((byte) 0); // flags: 0: CURSOR_TYPE_NO_CURSOR
IoUtils.writeInt(out, 1); // reserved for future use. Currently always 1.
out.write(IoUtils.nullMask(data)); // null_bit_map
out.write(1); // new_parameter_bound_flag
for (MysqlType type : types) {
IoUtils.writeShort(out, type.getId());
}
writeParameters(out);
} catch (IOException e) {
throw new RuntimeException("Unexpected IO Exception: " + e.getMessage(), e);
}
writtenForm = out.toByteArray();
}
return writtenForm;
}
private void writeParameters(ByteArrayOutputStream out) throws IOException {
if (types.size() != data.length) {
throw new IllegalStateException(
"Expect type and data length to match. Type length: "
+ types.size()
+ " data length "
+ data.length);
}
for (int i = 0; i < data.length; i++) {
Object param = data[i];
MysqlType type = types.get(i);
if (null != param) {
if (MysqlType.VARCHAR == type) {
IoUtils.writeLengthCodedString(out, param.toString(), "UTF-8");
}
if (MysqlType.VAR_STRING == type) {
IoUtils.writeLengthCodedString(out, param.toString(), "UTF-8");
} else {
throw new UnsupportedOperationException("Not yet implemented:" + type);
}
}
}
}