@Override
public Memory unconvert(Environment env, TraceInfo trace, Number arg) throws Throwable {
if (arg instanceof Double || arg instanceof Float) {
return DoubleMemory.valueOf(arg.doubleValue());
} else {
return LongMemory.valueOf(arg.longValue());
}
}
@Signature
public static Memory findAvailableLocalPort(Environment env, Memory... args) {
try {
ServerSocket serverSocket = new ServerSocket(0);
serverSocket.close();
return LongMemory.valueOf(serverSocket.getLocalPort());
} catch (IOException e) {
return Memory.FALSE;
}
}
@Override
public Memory write(Environment env, Memory... args) throws IOException {
int len = args[1].toInteger();
byte[] bytes = args[0].getBinaryBytes();
len = len == 0 || len > bytes.length ? bytes.length : len;
getOutputStream().write(bytes, 0, len);
return LongMemory.valueOf(len);
}
@Signature
public PSqlStatement query(Environment env, String sql, @Nullable ArrayMemory args)
throws Throwable {
PreparedStatement statement = connection.prepareStatement(sql);
PSqlStatement sqlStatement = new PSqlStatement(env, statement);
if (args != null) {
int index = 0;
for (ReferenceMemory arg : args) {
env.invokeMethod(sqlStatement, "bind", LongMemory.valueOf(index), arg.value);
index += 1;
}
}
return sqlStatement;
}
@Override
public Memory getPosition(Environment env, Memory... args) {
return LongMemory.valueOf(position);
}