use of tech.pdai.opcua.milo.client.entity.CustomStructType in project tech-pdai-spring-demos by realpdai.
the class OpcUaClientServiceImpl method retrieveCustomHistoryData.
/**
* retrieve custom type history data.
*
* @param historyReadValueId node id
* @return data
* @throws java.security.UnrecoverableKeyException UnrecoverableKey Exception
* @throws org.eclipse.milo.opcua.stack.core.UaException Ua Exception
* @throws java.security.cert.CertificateException Certificate Exception
* @throws java.io.IOException IO Exception
* @throws java.security.KeyStoreException KeyStore Exception
* @throws java.security.NoSuchAlgorithmException NoSuchAlgorithm Exception
* @throws java.util.concurrent.ExecutionException Execution Exception
* @throws InterruptedException Interrupted Exception
*/
@Override
public List<CustomStructType> retrieveCustomHistoryData(HistoryReadValueId historyReadValueId) throws UnrecoverableKeyException, UaException, CertificateException, IOException, KeyStoreException, NoSuchAlgorithmException, ExecutionException, InterruptedException {
log.info("trying to get custom data from node {}", historyReadValueId);
OpcUaClient opcClient = getOpcUaClient();
try {
// connect
log.info("connect to opc server");
opcClient.addSessionInitializer(new DataTypeDictionarySessionInitializer(new GenericBsdParser()));
opcClient.connect().get();
// read history
HistoryReadResponse historyReadResponse = opcClient.historyRead(new ReadRawModifiedDetails(false, DateTime.MIN_VALUE, DateTime.now(), uint(0), true), TimestampsToReturn.Both, false, Collections.singletonList(historyReadValueId)).get();
// register custom codec
log.info("register custom codec");
registerCustomCodec(opcClient);
// parse result
log.info("parse history data result");
HistoryReadResult[] historyReadResults = historyReadResponse.getResults();
if (historyReadResults != null) {
HistoryReadResult historyReadResult = historyReadResults[0];
StatusCode statusCode = historyReadResult.getStatusCode();
// check if status code is good
if (statusCode.isGood()) {
HistoryData historyData = (HistoryData) historyReadResult.getHistoryData().decode(opcClient.getStaticSerializationContext());
// parse node value to custom type
return l(historyData.getDataValues()).stream().map(value -> {
log.info("Value={}", value);
Variant variant = value.getValue();
ExtensionObject xo = (ExtensionObject) variant.getValue();
// decode value
CustomStructType decoded = (CustomStructType) xo.decode(opcClient.getStaticSerializationContext());
log.info("Decoded={}", decoded);
return decoded;
}).collect(Collectors.toList());
} else {
log.error("History read failed: {}", statusCode);
}
}
return new ArrayList<>();
} finally {
opcClient.disconnect();
}
}
use of tech.pdai.opcua.milo.client.entity.CustomStructType in project tech-pdai-spring-demos by realpdai.
the class OpcUaClientServiceImpl method retrieveCustomData.
/**
* retrieve custom type data.
*
* @param nodeId node id
* @return data
* @throws java.security.UnrecoverableKeyException UnrecoverableKey Exception
* @throws UaException Ua Exception
* @throws java.security.cert.CertificateException Certificate Exception
* @throws java.io.IOException IO Exception
* @throws java.security.KeyStoreException KeyStore Exception
* @throws java.security.NoSuchAlgorithmException NoSuchAlgorithm Exception
* @throws java.util.concurrent.ExecutionException Execution Exception
* @throws InterruptedException Interrupted Exception
*/
@Override
public CustomStructType retrieveCustomData(NodeId nodeId) throws UnrecoverableKeyException, UaException, CertificateException, IOException, KeyStoreException, NoSuchAlgorithmException, ExecutionException, InterruptedException {
log.info("trying to get custom data from node {}", nodeId);
OpcUaClient opcClient = getOpcUaClient();
try {
// connect
log.info("connect to opc server");
opcClient.addSessionInitializer(new DataTypeDictionarySessionInitializer(new GenericBsdParser()));
opcClient.connect().get();
// register custom codec
log.info("register custom codec");
registerCustomCodec(opcClient);
// synchronous read request via VariableNode
UaVariableNode node = opcClient.getAddressSpace().getVariableNode(nodeId);
log.info("DataType={}", node.getDataType());
// Read the current value
log.info("trying to read value form NodeId");
DataValue value = node.readValue();
log.info("Value={}", value);
Variant variant = value.getValue();
ExtensionObject xo = (ExtensionObject) variant.getValue();
// decode value
CustomStructType decoded = (CustomStructType) xo.decode(opcClient.getStaticSerializationContext());
log.info("Decoded={}", decoded);
return decoded;
} finally {
opcClient.disconnect();
}
}
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