Examples with DataRecord org.openmuc.jmbus.DataRecord used on opensource projects

Example 6 with DataRecord

use of org.openmuc.jmbus.DataRecord in project OpenMUC by isc-konstanz.

the class DriverConnection method read.

@Override
public Object read(List<ChannelRecordContainer> containers, Object containerListHandle, String samplingGroup) throws ConnectionException {
    synchronized (connectionInterface) {
        List<DataRecord> dataRecords = new ArrayList<>();
        if (!connectionInterface.isOpen()) {
            throw new ConnectionException("Connection " + connectionInterface.getInterfaceAddress() + " is closed.");
        }
        MBusConnection mBusConnection = connectionInterface.getMBusConnection();
        if (secondaryAddress != null) {
            try {
                mBusConnection.selectComponent(secondaryAddress);
                sleep(delay);
            } catch (IOException e) {
                for (ChannelRecordContainer container : containers) {
                    container.setRecord(new Record(Flag.DRIVER_ERROR_UNSPECIFIED));
                }
                connectionInterface.close();
                logger.error(e.getMessage());
                throw new ConnectionException(e);
            }
        }
        try {
            if (secondaryAddress == null) {
                if (resetLink) {
                    mBusConnection.linkReset(mBusAddress);
                    sleep(delay);
                }
                if (resetApplication) {
                    mBusConnection.resetReadout(mBusAddress);
                    sleep(delay);
                }
            }
            VariableDataStructure variableDataStructure = null;
            do {
                variableDataStructure = mBusConnection.read(mBusAddress);
                sleep(delay);
                dataRecords.addAll(variableDataStructure.getDataRecords());
            } while (variableDataStructure.moreRecordsFollow());
        } catch (IOException e) {
            for (ChannelRecordContainer container : containers) {
                container.setRecord(new Record(Flag.DRIVER_ERROR_UNSPECIFIED));
            }
            connectionInterface.close();
            logger.error(e.getMessage());
            throw new ConnectionException(e);
        }
        long timestamp = System.currentTimeMillis();
        String[] dibvibs = new String[dataRecords.size()];
        setDibVibs(dataRecords, dibvibs);
        boolean selectForReadoutSet = setRecords(containers, mBusConnection, timestamp, dataRecords, dibvibs);
        if (selectForReadoutSet) {
            try {
                mBusConnection.resetReadout(mBusAddress);
                sleep(delay);
            } catch (IOException e) {
                try {
                    mBusConnection.linkReset(mBusAddress);
                    sleep(delay);
                } catch (IOException e1) {
                    for (ChannelRecordContainer container : containers) {
                        container.setRecord(new Record(Flag.CONNECTION_EXCEPTION));
                    }
                    connectionInterface.close();
                    logger.error("{}\n{}", e.getMessage(), e1.getMessage());
                    throw new ConnectionException(e);
                }
            }
        }
        return null;
    }
}