Examples with PlcSubscriptionRequest org.apache.plc4x.java.api.messages.PlcSubscriptionRequest used on opensource projects

Example 6 with PlcSubscriptionRequest

use of org.apache.plc4x.java.api.messages.PlcSubscriptionRequest in project plc4x by apache.

the class HelloWebservice method run.

public void run() throws Exception {
    // Establish a connection to the plc.
    try (PlcConnection plcConnection = new PlcDriverManager().getConnection(options.getConnectionString())) {
        // Check if this connection support subscriptions.
        if (!plcConnection.getMetadata().canSubscribe()) {
            logger.error("This connection doesn't support subscriptions.");
            return;
        }
        // Create a new read request:
        // - Give the single item requested the alias name "value"
        final PlcSubscriptionRequest.Builder builder = plcConnection.subscriptionRequestBuilder();
        for (int i = 0; i < options.getFieldAddress().length; i++) {
            builder.addChangeOfStateField("value-" + i, options.getFieldAddress()[i]);
        }
        PlcSubscriptionRequest subscriptionRequest = builder.build();
        // Execute the subscription response.
        final PlcSubscriptionResponse subscriptionResponse = subscriptionRequest.execute().get();
        // Attach handlers for the incoming data.
        for (String subscriptionName : subscriptionResponse.getFieldNames()) {
            final PlcSubscriptionHandle subscriptionHandle = subscriptionResponse.getSubscriptionHandle(subscriptionName);
            subscriptionHandle.register(new ValueChangeHandler(options.getWebserviceUrl()));
        }
        // Wait for the user to press "Enter" to abort the program.
        Scanner scanner = new Scanner(System.in);
        try {
            logger.info("Please press Enter to exit program.");
            scanner.nextLine();
            logger.info("Finishing");
        } catch (IllegalStateException e) {
            // System.in has been closed
            logger.error("System.in was closed; exiting");
        }
    }
}

Example 7 with PlcSubscriptionRequest

use of org.apache.plc4x.java.api.messages.PlcSubscriptionRequest in project plc4x by apache.

the class HelloPlc4xSubscription method run.

public void run() throws Exception {
    // Establish a connection to the plc.
    try (PlcConnection plcConnection = new PlcDriverManager().getConnection(options.getConnectionString())) {
        // Check if this connection support subscriptions.
        if (!plcConnection.getMetadata().canSubscribe()) {
            logger.error("This connection doesn't support subscriptions.");
            return;
        }
        // Create a new read request:
        // - Give the single item requested the alias name "value"
        final PlcSubscriptionRequest.Builder builder = plcConnection.subscriptionRequestBuilder();
        for (int i = 0; i < options.getFieldAddress().length; i++) {
            builder.addChangeOfStateField("value-" + i, options.getFieldAddress()[i]);
        }
        PlcSubscriptionRequest subscriptionRequest = builder.build();
        // Execute the subscription response.
        final PlcSubscriptionResponse subscriptionResponse = subscriptionRequest.execute().get();
        // Attach handlers for the incoming data.
        for (String subscriptionName : subscriptionResponse.getFieldNames()) {
            final PlcSubscriptionHandle subscriptionHandle = subscriptionResponse.getSubscriptionHandle(subscriptionName);
            subscriptionHandle.register(new ValueChangeHandler());
        }
        // Wait for the user to press "Enter" to abort the program.
        Scanner scanner = new Scanner(System.in);
        try {
            logger.info("Please press Enter to exit program.");
            scanner.nextLine();
            logger.info("Finishing");
        } catch (IllegalStateException e) {
            // System.in has been closed
            logger.error("System.in was closed; exiting");
        }
    }
}

Example 8 with PlcSubscriptionRequest

use of org.apache.plc4x.java.api.messages.PlcSubscriptionRequest in project plc4x by apache.

the class HelloInflux method run.

public void run() {
    InfluxDBClient dbConnection = connectToDb();
    WriteApi writeApi = dbConnection.getWriteApi();
    try {
        PlcConnection plcConnection = connectToPlc();
        final PlcSubscriptionRequest subscriptionRequest = plcConnection.subscriptionRequestBuilder().addChangeOfStateField("query", configuration.getString("plc.query")).build();
        final PlcSubscriptionResponse subscriptionResponse = subscriptionRequest.execute().get(10, TimeUnit.SECONDS);
        subscriptionResponse.getSubscriptionHandle("query").register(plcSubscriptionEvent -> {
            DefaultPlcSubscriptionEvent internalEvent = (DefaultPlcSubscriptionEvent) plcSubscriptionEvent;
            final Point point = Point.measurement(configuration.getString("influx.measurement")).time(plcSubscriptionEvent.getTimestamp().toEpochMilli(), WritePrecision.MS);
            final Map<String, ResponseItem<PlcValue>> values = internalEvent.getValues();
            values.forEach((fieldName, fieldResponsePair) -> {
                final PlcResponseCode responseCode = fieldResponsePair.getCode();
                final PlcValue plcValue = fieldResponsePair.getValue();
                if (responseCode == PlcResponseCode.OK) {
                    PlcStruct structValue = (PlcStruct) plcValue;
                    for (String key : structValue.getKeys()) {
                        PlcValue subValue = structValue.getValue(key);
                        registerFields(point, key, subValue);
                    }
                }
            });
            writeApi.writePoint(configuration.getString("influx.bucket"), configuration.getString("influx.org"), point);
        });
    } catch (PlcException e) {
        logger.error("PLC Error", e);
    } catch (Exception e) {
        logger.error("General Error", e);
    }
}

Example 9 with PlcSubscriptionRequest

use of org.apache.plc4x.java.api.messages.PlcSubscriptionRequest in project plc4x by apache.

the class ManualKnxNetIp method main.

// Addresses:
// */*/10: Temperature
// */*/12: Heating
// */*/60: Primary Window
// */*/64: Second Window
// */*/101: Power Line 1
public static void main(String[] args) throws Exception {
    // final PlcConnection connection = new PlcDriverManager().getConnection("knxnet-ip://192.168.42.11?knxproj-file-path=/Users/christofer.dutz/Projects/Apache/PLC4X-Documents/KNX/Stettiner%20Str.%2013/StettinerStr-Soll-Ist-Temperatur.knxproj");
    final PlcConnection connection = new PlcDriverManager().getConnection("knxnet-ip:pcap:///Users/christofer.dutz/Projects/Apache/PLC4X-Documents/KNX/Recording-01.03.2020-2.pcapng?knxproj-file-path=/Users/christofer.dutz/Projects/Apache/PLC4X-Documents/KNX/Stettiner%20Str.%2013/StettinerStr-Soll-Ist-Temperatur.knxproj");
    // Make sure we hang up correctly when terminating.
    Runtime.getRuntime().addShutdownHook(new Thread(() -> {
        try {
            connection.close();
        } catch (Exception e) {
            throw new PlcRuntimeException("Error closing connection", e);
        }
    }));
    // Create a new subscription request.
    // The address and the name is just bogus as we're always returning everything.
    // We will probably refactor the API in the near future.
    final PlcSubscriptionRequest subscriptionRequest = connection.subscriptionRequestBuilder().addEventField("knxData", "*/*/*").build();
    // Register the subscription
    // The timeout is also just a bogus value as the data is coming in actively
    // We will probably refactor the API in the near future.
    final PlcSubscriptionResponse subscriptionResponse = subscriptionRequest.execute().get(1000, TimeUnit.MILLISECONDS);
    // Register a callback which is called on new data being available.
    final PlcSubscriptionHandle subscriptionHandle = subscriptionResponse.getSubscriptionHandle("knxData");
    subscriptionHandle.register(knxData -> {
        System.out.println(knxData.getTimestamp().toString() + " - " + ((DefaultPlcSubscriptionEvent) knxData).getValues().get("knxData"));
    });
}

Example 10 with PlcSubscriptionRequest

use of org.apache.plc4x.java.api.messages.PlcSubscriptionRequest in project plc4x by apache.

the class OpcuaSubscriptionHandleTest method subscribeMultiple.

@Test
public void subscribeMultiple() throws Exception {
    String field1 = "UInteger";
    String identifier1 = UINTEGER_IDENTIFIER_READ_WRITE;
    String field2 = "Integer";
    String identifier2 = INTEGER_IDENTIFIER_READ_WRITE;
    LOGGER.info("Starting subscription {}  and {} test", field1, field2);
    // Create Subscription
    PlcSubscriptionRequest.Builder builder = opcuaConnection.subscriptionRequestBuilder();
    builder.addChangeOfStateField(field1, identifier1);
    builder.addChangeOfStateField(field2, identifier2);
    PlcSubscriptionRequest request = builder.build();
    // Get result of creating subscription
    PlcSubscriptionResponse response = request.execute().get();
    final OpcuaSubscriptionHandle subscriptionHandle = (OpcuaSubscriptionHandle) response.getSubscriptionHandle(field1);
    // Create handler for returned value
    subscriptionHandle.register(plcSubscriptionEvent -> {
        assert plcSubscriptionEvent.getResponseCode(field1).equals(PlcResponseCode.OK);
        assert plcSubscriptionEvent.getResponseCode(field2).equals(PlcResponseCode.OK);
    });
    // Wait for value to be returned from server
    Thread.sleep(1200);
    subscriptionHandle.stopSubscriber();
}