Examples with HistoryReadResult org.eclipse.milo.opcua.stack.core.types.structured.HistoryReadResult used on opensource projects

Example 1 with HistoryReadResult

use of org.eclipse.milo.opcua.stack.core.types.structured.HistoryReadResult in project milo by eclipse.

the class HistoryReadExampleProsys method run.

@Override
public void run(OpcUaClient client, CompletableFuture<OpcUaClient> future) throws Exception {
    client.connect().get();
    HistoryReadDetails historyReadDetails = new ReadRawModifiedDetails(false, DateTime.MIN_VALUE, DateTime.now(), uint(0), true);
    HistoryReadValueId historyReadValueId = new HistoryReadValueId(new NodeId(3, "Counter"), null, QualifiedName.NULL_VALUE, ByteString.NULL_VALUE);
    List<HistoryReadValueId> nodesToRead = new ArrayList<>();
    nodesToRead.add(historyReadValueId);
    HistoryReadResponse historyReadResponse = client.historyRead(historyReadDetails, TimestampsToReturn.Both, false, nodesToRead).get();
    HistoryReadResult[] historyReadResults = historyReadResponse.getResults();
    if (historyReadResults != null) {
        HistoryReadResult historyReadResult = historyReadResults[0];
        StatusCode statusCode = historyReadResult.getStatusCode();
        if (statusCode.isGood()) {
            HistoryData historyData = (HistoryData) historyReadResult.getHistoryData().decode(client.getStaticSerializationContext());
            List<DataValue> dataValues = l(historyData.getDataValues());
            dataValues.forEach(v -> System.out.println("value=" + v));
        } else {
            System.out.println("History read failed: " + statusCode);
        }
    }
    future.complete(client);
}

Example 2 with HistoryReadResult

use of org.eclipse.milo.opcua.stack.core.types.structured.HistoryReadResult in project milo by eclipse.

the class AttributeHistoryServices method historyRead.

/**
 * Read history values from nodes belonging to this {@link AttributeHistoryServices}.
 * <p>
 * Complete the operation with {@link HistoryReadContext#success(Object)}.
 *
 * @param context      the {@link HistoryReadContext}.
 * @param timestamps   requested timestamp values.
 * @param readValueIds the values to read.
 */
default void historyRead(HistoryReadContext context, HistoryReadDetails readDetails, TimestampsToReturn timestamps, List<HistoryReadValueId> readValueIds) {
    HistoryReadResult result = new HistoryReadResult(new StatusCode(StatusCodes.Bad_HistoryOperationUnsupported), null, null);
    context.success(Collections.nCopies(readValueIds.size(), result));
}

Example 3 with HistoryReadResult

use of org.eclipse.milo.opcua.stack.core.types.structured.HistoryReadResult 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();
    }
}

Example 4 with HistoryReadResult

use of org.eclipse.milo.opcua.stack.core.types.structured.HistoryReadResult in project tech-pdai-spring-demos by realpdai.

the class OpcUaClientServiceImpl method retrieveGenericHistoryData.

/**
 * retrieve history data.
 *
 * @param historyReadValueId historyReadValueId
 * @return history data value
 * @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 List<DataValue> retrieveGenericHistoryData(HistoryReadValueId historyReadValueId) throws UnrecoverableKeyException, UaException, CertificateException, IOException, KeyStoreException, NoSuchAlgorithmException, ExecutionException, InterruptedException {
    OpcUaClient opcClient = getOpcUaClient();
    try {
        HistoryReadResponse historyReadResponse = opcClient.historyRead(new ReadRawModifiedDetails(false, DateTime.MIN_VALUE, DateTime.now(), uint(0), true), TimestampsToReturn.Both, false, Collections.singletonList(historyReadValueId)).get();
        // parse result
        HistoryReadResult[] historyReadResults = historyReadResponse.getResults();
        if (historyReadResults != null) {
            HistoryReadResult historyReadResult = historyReadResults[0];
            StatusCode statusCode = historyReadResult.getStatusCode();
            if (statusCode.isGood()) {
                HistoryData historyData = (HistoryData) historyReadResult.getHistoryData().decode(opcClient.getStaticSerializationContext());
                return l(historyData.getDataValues());
            } else {
                log.error("History read failed: {}", statusCode);
            }
        }
        return new ArrayList<>();
    } finally {
        opcClient.disconnect();
    }
}