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    Simple Examples

    BACnet4J general discussion
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    • A
      apl
      last edited by

      Thank you, iI got it from CVS.

      so here is my next "streamlined" ex DiscoveryTest example

      It sends a WhoIs Request, waits for the first device to answer (in doDiscover()).
      And then it requests all available Properties with PropertyIdentifier.all.
      Then it prints the properties sorted by ObjectId.

      /*
 * ============================================================================
 * GNU Lesser General Public License
 * ============================================================================
 *
 * Copyright (C) 2006-2009 Serotonin Software Technologies Inc. http://serotoninsoftware.com
 * @author Matthew Lohbihler
 * 
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 * 
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307, USA.
 */
package com.serotonin.bacnet4j.test;

import com.serotonin.bacnet4j.RemoteObject;
import com.serotonin.bacnet4j.exception.BACnetException;
import com.serotonin.bacnet4j.obj.BACnetObject;
import com.serotonin.bacnet4j.type.Encodable;
import com.serotonin.bacnet4j.type.constructed.Choice;
import com.serotonin.bacnet4j.type.constructed.PropertyValue;
import com.serotonin.bacnet4j.type.constructed.TimeStamp;
import com.serotonin.bacnet4j.type.enumerated.EventState;
import com.serotonin.bacnet4j.type.enumerated.EventType;
import com.serotonin.bacnet4j.type.enumerated.MessagePriority;
import com.serotonin.bacnet4j.type.enumerated.NotifyType;
import com.serotonin.bacnet4j.type.notificationParameters.NotificationParameters;
import com.serotonin.bacnet4j.type.primitive.Boolean;
import com.serotonin.bacnet4j.type.primitive.CharacterString;
import java.io.IOException;
import java.util.List;

import com.serotonin.bacnet4j.LocalDevice;
import com.serotonin.bacnet4j.RemoteDevice;
import com.serotonin.bacnet4j.event.DeviceEventListener;
import com.serotonin.bacnet4j.service.unconfirmed.WhoIsRequest;
import com.serotonin.bacnet4j.type.constructed.ObjectPropertyReference;
import com.serotonin.bacnet4j.type.constructed.SequenceOf;
import com.serotonin.bacnet4j.type.enumerated.PropertyIdentifier;
import com.serotonin.bacnet4j.type.primitive.ObjectIdentifier;
import com.serotonin.bacnet4j.type.primitive.UnsignedInteger;
import com.serotonin.bacnet4j.util.PropertyReferences;
import com.serotonin.bacnet4j.util.PropertyValues;
import java.util.ArrayList;

/**
 * Discovers and devices and print all properties of all objects found.
 * this is done by using PropertyIdentifier.all so the Device will send all propertys that are set.
 * if you want poll all PropertyId {@link ReadPropertyRangeTest}.
 *
 * @author Matthew Lohbihler
 * @author Arne Plöse
 */
public class ReadAllAvailabeProperties {

    public static String BROADCAST_ADDRESS = "127.0.0.255";
    private LoopDevice loopDevice;
    private LocalDevice localDevice;
    // remote devices found
    private List<RemoteDevice> remoteDevices = new ArrayList<RemoteDevice>();

    public ReadAllAvailabeProperties(String broadcastAddress, int port) throws IOException {
        localDevice = new LocalDevice(1234, broadcastAddress);
        localDevice.setPort(port);
        localDevice.getEventHandler().addListener(new DeviceEventListener() {

            public void listenerException(Throwable e) {
                System.out.println("DiscoveryTest listenerException");
            }

            public void iAmReceived(RemoteDevice d) {
                System.out.println("DiscoveryTest iAmReceived");
                remoteDevices.add(d);
                synchronized (ReadAllAvailabeProperties.this) {
                    ReadAllAvailabeProperties.this.notifyAll();
                }
            }

            public boolean allowPropertyWrite(BACnetObject obj, PropertyValue pv) {
                System.out.println("DiscoveryTest allowPropertyWrite");
                return true;
            }

            public void propertyWritten(BACnetObject obj, PropertyValue pv) {
                System.out.println("DiscoveryTest propertyWritten");
            }

            public void iHaveReceived(RemoteDevice d, RemoteObject o) {
                System.out.println("DiscoveryTest iHaveReceived");
            }

            public void covNotificationReceived(UnsignedInteger subscriberProcessIdentifier, RemoteDevice initiatingDevice, ObjectIdentifier monitoredObjectIdentifier, UnsignedInteger timeRemaining, SequenceOf<PropertyValue> listOfValues) {
                System.out.println("DiscoveryTest covNotificationReceived");
            }

            public void eventNotificationReceived(UnsignedInteger processIdentifier, RemoteDevice initiatingDevice, ObjectIdentifier eventObjectIdentifier, TimeStamp timeStamp, UnsignedInteger notificationClass, UnsignedInteger priority, EventType eventType, CharacterString messageText, NotifyType notifyType, Boolean ackRequired, EventState fromState, EventState toState, NotificationParameters eventValues) {
                System.out.println("DiscoveryTest eventNotificationReceived");
            }

            public void textMessageReceived(RemoteDevice textMessageSourceDevice, Choice messageClass, MessagePriority messagePriority, CharacterString message) {
                System.out.println("DiscoveryTest textMessageReceived");
            }

            public void privateTransferReceived(UnsignedInteger vendorId, UnsignedInteger serviceNumber, Encodable serviceParameters) {
                System.out.println("DiscoveryTest privateTransferReceived");
            }
        });
        localDevice.initialize();

    }

    /**
     * Send a WhoIs request and wait for the first to answer
     * @throws java.lang.Exception
     */
    public void doDiscover() throws Exception {
        // Who is
        System.out.println("Send Broadcast WhoIsRequest() ");
        // Send the broadcast to the correct port of the LoopDevice !!!
        localDevice.sendBroadcast(loopDevice.getPort(), new WhoIsRequest(null, null));

        // wait for notification in iAmReceived() Timeout 2 sec
        synchronized (this) {
            final long start = System.currentTimeMillis();
            this.wait(2000);
            System.out.println(" waited for iAmReceived: " + (System.currentTimeMillis() - start) + " ms");
        }

        // An other way to get to the list of devices
        // return localDevice.getRemoteDevices();
    }

    private void printDevices() throws BACnetException {
        for (RemoteDevice d : remoteDevices) {

            localDevice.getExtendedDeviceInformation(d);

            List<ObjectIdentifier> oids = ((SequenceOf<ObjectIdentifier>) localDevice.sendReadPropertyAllowNull(
                    d, d.getObjectIdentifier(), PropertyIdentifier.objectList)).getValues();

            PropertyReferences refs = new PropertyReferences();
            // add the property references of the "device object" to the list
            refs.add(d.getObjectIdentifier(), PropertyIdentifier.all);

            // and now from all objects under the device object >> ai0, ai1,bi0,bi1...
            for (ObjectIdentifier oid : oids) {
                refs.add(oid, PropertyIdentifier.all);
            }

            System.out.println("Start read properties");
              final long start = System.currentTimeMillis();

            PropertyValues pvs = localDevice.readProperties(d, refs);
            System.out.println(String.format("Properties read done in %d ms", System.currentTimeMillis() - start));
            printObject(d.getObjectIdentifier(), pvs);
            for (ObjectIdentifier oid : oids) {
                printObject(oid, pvs);
            }


        }

        System.out.println("Remote devices done...");
    }

    private void printObject(ObjectIdentifier oid, PropertyValues pvs) {
        System.out.println(String.format("\t%s", oid));
        for (ObjectPropertyReference opr : pvs) {
            if (oid.equals(opr.getObjectIdentifier())) {
                System.out.println(String.format("\t\t%s = %s", opr.getPropertyIdentifier().toString(), pvs.getNoErrorCheck(opr)));
            }

        }
    }

    /**
     * Note same Bropadcast address, but different ports!!!
     * @param args
     * @throws java.lang.Exception
     */
    @SuppressWarnings("unchecked")
    public static void main(String[] args) throws Exception {
        ReadAllAvailabeProperties dt = new ReadAllAvailabeProperties(BROADCAST_ADDRESS, LocalDevice.DEFAULT_PORT);
        try {
            dt.setLoopDevice(new LoopDevice(BROADCAST_ADDRESS, LocalDevice.DEFAULT_PORT + 1));
        } catch (RuntimeException e) {
            dt.localDevice.terminate();
            throw e;
        }
        try {
            dt.doDiscover();
            dt.printDevices();
        } finally {
            dt.localDevice.terminate();
            System.out.println("Cleanup loopDevice");
            dt.getLoopDevice().doTerminate();
        }
    }

    /**
     * @return the loopDevice
     */
    public LoopDevice getLoopDevice() {
        return loopDevice;
    }

    /**
     * @param loopDevice the loopDevice to set
     */
    public void setLoopDevice(LoopDevice loopDevice) {
        this.loopDevice = loopDevice;
    }
}

      If you find this useful, you may add this to CVS.

      If you interested, I would write a read specific property the old DiscoveryTest and a writeProperty test.

      Arne

      1 Reply Last reply Reply Quote 0
      • M
        mlohbihler
        last edited by

        Hi Arne,

        This looks great. I will add it to the distribution, but a couple things:

        • I changed the class name from ReadAllAvailabeProperties to ReadAllAvailableProperties

        • You reference a class named LoopDevice for which i don't have the code. Can you provide it? (Is it just a RemoteObject?)

        Best regards,
        Matthew

        1 Reply Last reply Reply Quote 0
        • A
          apl
          last edited by

          Ok,

          here we go:

          /*
 * ============================================================================
 * GNU Lesser General Public License
 * ============================================================================
 *
 * Copyright (C) 2006-2009 Serotonin Software Technologies Inc. http://serotoninsoftware.com
 * @author Matthew Lohbihler
 * 
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 * 
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307, USA.
 */
package com.serotonin.bacnet4j.test;

import com.serotonin.bacnet4j.LocalDevice;
import com.serotonin.bacnet4j.RemoteDevice;
import com.serotonin.bacnet4j.RemoteObject;
import com.serotonin.bacnet4j.event.DeviceEventListener;
import com.serotonin.bacnet4j.exception.BACnetServiceException;
import com.serotonin.bacnet4j.obj.BACnetObject;
import com.serotonin.bacnet4j.type.Encodable;
import com.serotonin.bacnet4j.type.constructed.Choice;
import com.serotonin.bacnet4j.type.constructed.PropertyValue;
import com.serotonin.bacnet4j.type.constructed.SequenceOf;
import com.serotonin.bacnet4j.type.constructed.TimeStamp;
import com.serotonin.bacnet4j.type.enumerated.BinaryPV;
import com.serotonin.bacnet4j.type.enumerated.EngineeringUnits;
import com.serotonin.bacnet4j.type.enumerated.EventState;
import com.serotonin.bacnet4j.type.enumerated.EventType;
import com.serotonin.bacnet4j.type.enumerated.MessagePriority;
import com.serotonin.bacnet4j.type.enumerated.NotifyType;
import com.serotonin.bacnet4j.type.enumerated.ObjectType;
import com.serotonin.bacnet4j.type.enumerated.PropertyIdentifier;
import com.serotonin.bacnet4j.type.enumerated.Reliability;
import com.serotonin.bacnet4j.type.notificationParameters.NotificationParameters;
import com.serotonin.bacnet4j.type.primitive.Boolean;
import com.serotonin.bacnet4j.type.primitive.CharacterString;
import com.serotonin.bacnet4j.type.primitive.ObjectIdentifier;
import com.serotonin.bacnet4j.type.primitive.Real;
import com.serotonin.bacnet4j.type.primitive.UnsignedInteger;
import java.io.IOException;

/**
 *
 * software only device default local loop ;-)
 *
 * @author mlohbihler
 * @author aploese
 */
public class LoopDevice implements Runnable {

    public static void main(String[] args) throws Exception {
        LoopDevice ld = new LoopDevice("127.0.0.255", LocalDevice.DEFAULT_PORT + 1);
        Thread.sleep(12000); // wait 2 min
        ld.doTerminate();
    }
    private boolean terminate;
    private LocalDevice localDevice;
    private BACnetObject ai0;
    private BACnetObject ai1;
    private BACnetObject bi0;
    private BACnetObject bi1;
    private BACnetObject mso0;
    private BACnetObject ao0;

    public LoopDevice(String broadcastAddress, int port) throws BACnetServiceException, IOException {
        localDevice = new LocalDevice(1968, broadcastAddress);
        try {
            localDevice.setPort(port);
            localDevice.getEventHandler().addListener(new DeviceEventListener() {

                public void listenerException(Throwable e) {
                    System.out.println("loopDevice listenerException");
                }

                public void iAmReceived(RemoteDevice d) {
                    System.out.println("loopDevice iAmReceived");
                }

                public boolean allowPropertyWrite(BACnetObject obj, PropertyValue pv) {
                    System.out.println("loopDevice allowPropertyWrite");
                    return true;
                }

                public void propertyWritten(BACnetObject obj, PropertyValue pv) {
                    System.out.println("loopDevice propertyWritten");
                }

                public void iHaveReceived(RemoteDevice d, RemoteObject o) {
                    System.out.println("loopDevice iHaveReceived");
                }

                public void covNotificationReceived(UnsignedInteger subscriberProcessIdentifier, RemoteDevice initiatingDevice, ObjectIdentifier monitoredObjectIdentifier, UnsignedInteger timeRemaining, SequenceOf<PropertyValue> listOfValues) {
                    System.out.println("loopDevice covNotificationReceived");
                }

                public void eventNotificationReceived(UnsignedInteger processIdentifier, RemoteDevice initiatingDevice, ObjectIdentifier eventObjectIdentifier, TimeStamp timeStamp, UnsignedInteger notificationClass, UnsignedInteger priority, EventType eventType, CharacterString messageText, NotifyType notifyType, Boolean ackRequired, EventState fromState, EventState toState, NotificationParameters eventValues) {
                    System.out.println("loopDevice eventNotificationReceived");
                }

                public void textMessageReceived(RemoteDevice textMessageSourceDevice, Choice messageClass, MessagePriority messagePriority, CharacterString message) {
                    System.out.println("loopDevice textMessageReceived");
                }

                public void privateTransferReceived(UnsignedInteger vendorId, UnsignedInteger serviceNumber, Encodable serviceParameters) {
                    System.out.println("loopDevice privateTransferReceived");
                }
            });

            // for valid property values with valid datatypes see com.serotonin.bacnet4j.obj.ObjectProperties and ther look for the big static block at the end;
            // properties of device object
            localDevice.getConfiguration().setProperty(PropertyIdentifier.modelName, new CharacterString("BACnet4J LoopDevice"));

            // Set up a few objects.
            ai0 = new BACnetObject(localDevice, localDevice.getNextInstanceObjectIdentifier(ObjectType.analogInput));

            //mandatory properties
            ai0.setProperty(PropertyIdentifier.objectName, new CharacterString("G1-RLT03-TM-01")); // this is a cryptic encoded name of a temp sensor from a drawing... (ahm. actually taken from a book ;-))
            ai0.setProperty(PropertyIdentifier.presentValue, new Real((float)11));
            ai0.setProperty(PropertyIdentifier.outOfService, new Boolean(false));
            ai0.setProperty(PropertyIdentifier.units, EngineeringUnits.degreesCelsius);

            //some optional properties
            ai0.setProperty(PropertyIdentifier.description, new CharacterString("temperature"));
            ai0.setProperty(PropertyIdentifier.deviceType, new CharacterString("random values"));
            ai0.setProperty(PropertyIdentifier.reliability, Reliability.noFaultDetected);
            ai0.setProperty(PropertyIdentifier.updateInterval, new UnsignedInteger(10));

            ai0.setProperty(PropertyIdentifier.minPresValue, new Real(-70));
            ai0.setProperty(PropertyIdentifier.maxPresValue, new Real(120));
            ai0.setProperty(PropertyIdentifier.resolution, new Real((float)0.1));
            ai0.setProperty(PropertyIdentifier.profileName, new CharacterString("funny reader"));

            localDevice.addObject(ai0);

            ai1 = new BACnetObject(
                    localDevice, localDevice.getNextInstanceObjectIdentifier(ObjectType.analogInput));
            ai1.setProperty(PropertyIdentifier.units, EngineeringUnits.percentObscurationPerFoot);
            localDevice.addObject(ai1);

            bi0 = new BACnetObject(
                    localDevice, localDevice.getNextInstanceObjectIdentifier(ObjectType.binaryInput));
            localDevice.addObject(bi0);
            bi0.setProperty(PropertyIdentifier.objectName, new CharacterString("Off and on"));
            bi0.setProperty(PropertyIdentifier.inactiveText, new CharacterString("Off"));
            bi0.setProperty(PropertyIdentifier.activeText, new CharacterString("On"));

            bi1 = new BACnetObject(
                    localDevice, localDevice.getNextInstanceObjectIdentifier(ObjectType.binaryInput));
            localDevice.addObject(bi1);
            bi1.setProperty(PropertyIdentifier.objectName, new CharacterString("Good and bad"));
            bi1.setProperty(PropertyIdentifier.inactiveText, new CharacterString("Bad"));
            bi1.setProperty(PropertyIdentifier.activeText, new CharacterString("Good"));

            mso0 = new BACnetObject(
                    localDevice, localDevice.getNextInstanceObjectIdentifier(ObjectType.multiStateOutput));
            mso0.setProperty(PropertyIdentifier.objectName, new CharacterString("Vegetable"));
            mso0.setProperty(PropertyIdentifier.numberOfStates, new UnsignedInteger(4));
            mso0.setProperty(PropertyIdentifier.stateText, 1, new CharacterString("Tomato"));
            mso0.setProperty(PropertyIdentifier.stateText, 2, new CharacterString("Potato"));
            mso0.setProperty(PropertyIdentifier.stateText, 3, new CharacterString("Onion"));
            mso0.setProperty(PropertyIdentifier.stateText, 4, new CharacterString("Broccoli"));
            mso0.setProperty(PropertyIdentifier.presentValue, new UnsignedInteger(1));
            localDevice.addObject(mso0);

            ao0 = new BACnetObject(
                    localDevice, localDevice.getNextInstanceObjectIdentifier(ObjectType.analogOutput));
            ao0.setProperty(PropertyIdentifier.objectName, new CharacterString("Settable analog"));
            localDevice.addObject(ao0);


            // Start the local device.
            localDevice.initialize();
            new Thread(this).start();
        } catch (RuntimeException e) {
            System.out.println("Ex in LoopDevice() ");
            e.printStackTrace();
            localDevice.terminate();
            localDevice = null;
            throw e;
        }
    }

    public void run() {
        try {
            System.out.println("LoopDevice start changing values" + this);

            // Let it go...
            float ai0value = 0;
            float ai1value = 0;
            boolean bi0value = false;
            boolean bi1value = false;

            getMso0().setProperty(PropertyIdentifier.presentValue, new UnsignedInteger(2));
            while (!isTerminate()) {
                System.out.print("Change values of LoopDevice " + this);


                // Update the values in the objects.
                ai0.setProperty(PropertyIdentifier.presentValue, new Real(ai0value));
                ai1.setProperty(PropertyIdentifier.presentValue, new Real(ai1value));
                bi0.setProperty(PropertyIdentifier.presentValue, bi0value ? BinaryPV.active : BinaryPV.inactive);
                bi1.setProperty(PropertyIdentifier.presentValue, bi1value ? BinaryPV.active : BinaryPV.inactive);

                synchronized (this) {
                    wait(1000); // 1 second or notified (faster exit then stupid wait for 1 second)
                }
            }
            System.out.println("Close LoopDevive " + this);
        } catch (Exception ex) {
        }
        localDevice.terminate();
        localDevice = null;
    }

    @Override
    protected void finalize() throws Throwable {
        if (localDevice != null) {
            localDevice.terminate();
            localDevice = null;
        }
    }

    /**
     * @return the terminate
     */
    public boolean isTerminate() {
        return terminate;
    }

    /**
     * @param terminate the terminate to set
     */
    public void doTerminate() {
        this.terminate = true;
        synchronized (this) {
            this.notifyAll(); // we may wait for this in run() ...
        }
    }

    /**
     * @return the broadcastAddress
     */
    public String getBroadcastAddress() {
        return localDevice.getBroadcastAddress();
    }

    /**
     * @return the port
     */
    public int getPort() {
        return localDevice.getPort();
    }

    /**
     * @return the localDevice
     */
    public LocalDevice getLocalDevice() {
        return localDevice;
    }

    /**
     * @return the ai0
     */
    public BACnetObject getAi0() {
        return ai0;
    }

    /**
     * @return the ai1
     */
    public BACnetObject getAi1() {
        return ai1;
    }

    /**
     * @return the bi0
     */
    public BACnetObject getBi0() {
        return bi0;
    }

    /**
     * @return the bi1
     */
    public BACnetObject getBi1() {
        return bi1;
    }

    /**
     * @return the mso0
     */
    public BACnetObject getMso0() {
        return mso0;
    }

    /**
     * @return the ao0
     */
    public BACnetObject getAo0() {
        return ao0;
    }
}

          the classname was a typo, thank you.

          You (or probably me) can improve it to pass a broadcastaddress and timeout via main().

          Arne

          1 Reply Last reply Reply Quote 0
          • M
            mlohbihler
            last edited by

            Ok, this has been added with one other change. In ReadAllAvailableProperties at line 220:

                    loopDevice = loopDevice;

            ... changed to:

                    this.loopDevice = loopDevice;

            Best regards,
            Matthew

            1 Reply Last reply Reply Quote 0
            • A
              akc
              last edited by

              Hi,
              I am also having problems running discovery test.
              Here is my error message:

              Exception in thread "main" java.lang.Error: Unresolved compilation problems:
              The import com.serotonin.util cannot be resolved
              ObjectUtils cannot be resolved

              at com.serotonin.bacnet4j.LocalDevice.<init>(LocalDevice.java:96)
at DiscoveryTest.main(DiscoveryTest.java:22)

              I am missing the com.serotonin.util directory. Where do I get this file? I only have com.serotonin.bacnet4j.

              Thanks,
              -Andrew

              1 Reply Last reply Reply Quote 0
              • M
                mlohbihler
                last edited by

                You should have downloaded the seroUtils.jar file as well. This needs to be included in your classpath.

                Best regards,
                Matthew

                1 Reply Last reply Reply Quote 0
                • A
                  akc
                  last edited by

                  Thanks mlohbihler. sorry for my novice question.
                  -andrew

                  1 Reply Last reply Reply Quote 0
                  • D
                    drubin
                    last edited by

                    To prevent hair loss for anyone who stumbles upon this thread looking for somewhere to start with bacnet4j... I could not find this code anywhere in the bacnet4j Java package. I created ReadAllAvailabeProperties and LoopDevice classes in my own package. In order for this code to work with the newer versions of bacnet4j I had to replace all occurrences of DeviceEventListener with DefaultDeviceEventListener in both classes. This was just guess but it apparently worked.

                    1 Reply Last reply Reply Quote 0
                    • D
                      drubin
                      last edited by

                      Nevermind on that last post... all the test classes which compile correctly can be found in the source archive: bacnet4J-src.zip which can be found here: http://sourceforge.net/projects/bacnet4j/files/bacnet4j/1.2/

                      The are not in bacnet4j.jar or seroUtils.jar

                      I would still love to know the basic design of this package or a good description of the LocalDevice and RemoteDevice classes...

                      1 Reply Last reply Reply Quote 0
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