BACnetReader.java

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// Connect to BACnet and read data from a BACnet device.

/*
********************************************************************
Copyright Notice
----------------

Building Controls Virtual Test Bed (BCVTB) Copyright (c) 2008-2009, The
Regents of the University of California, through Lawrence Berkeley
National Laboratory (subject to receipt of any required approvals from
the U.S. Dept. of Energy). All rights reserved.

If you have questions about your rights to use or distribute this
software, please contact Berkeley Lab's Technology Transfer Department
at TTD@lbl.gov

NOTICE.  This software was developed under partial funding from the U.S.
Department of Energy.  As such, the U.S. Government has been granted for
itself and others acting on its behalf a paid-up, nonexclusive,
irrevocable, worldwide license in the Software to reproduce, prepare
derivative works, and perform publicly and display publicly.  Beginning
five (5) years after the date permission to assert copyright is obtained
from the U.S. Department of Energy, and subject to any subsequent five
(5) year renewals, the U.S. Government is granted for itself and others
acting on its behalf a paid-up, nonexclusive, irrevocable, worldwide
license in the Software to reproduce, prepare derivative works,
distribute copies to the public, perform publicly and display publicly,
and to permit others to do so.


Modified BSD License agreement
------------------------------

Building Controls Virtual Test Bed (BCVTB) Copyright (c) 2008-2009, The
Regents of the University of California, through Lawrence Berkeley
National Laboratory (subject to receipt of any required approvals from
the U.S. Dept. of Energy).  All rights reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:

   1. Redistributions of source code must retain the above copyright
      notice, this list of conditions and the following disclaimer.
   2. Redistributions in binary form must reproduce the above copyright
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      the documentation and/or other materials provided with the
      distribution.
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      Berkeley National Laboratory, U.S. Dept. of Energy nor the names
      of its contributors may be used to endorse or promote products
      derived from this software without specific prior written permission. 

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
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You are under no obligation whatsoever to provide any bug fixes,
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********************************************************************
*/
package bacnet.actor;
import bacnet.util.BACnetObjectType;
import bacnet.util.BACnet;
import bacnet.util.BACnetCompleteProperty;
import ptolemy.actor.TypedIOPort;
import ptolemy.data.ArrayToken;
import ptolemy.data.Token;
import ptolemy.data.IntToken;
import ptolemy.data.StringToken;
import ptolemy.data.BooleanToken;
import ptolemy.data.type.ArrayType;
import ptolemy.data.type.BaseType;
import ptolemy.kernel.CompositeEntity;
import ptolemy.kernel.util.IllegalActionException;
import ptolemy.kernel.util.InternalErrorException;
import ptolemy.kernel.util.NameDuplicationException;
import ptolemy.kernel.util.Workspace;
import ptolemy.kernel.util.StringAttribute;
import java.lang.Exception;
import java.util.ArrayList;
import java.io.IOException;
import java.io.File;
import java.io.StringWriter;
import java.io.PrintWriter;
import org.xml.sax.SAXParseException;
import org.xml.sax.SAXException;
import javax.xml.XMLConstants;
import javax.xml.validation.SchemaFactory;
import javax.xml.parsers.ParserConfigurationException;
import javax.naming.OperationNotSupportedException;
//BACnetReader

public class BACnetReader extends BACnet {

    public BACnetReader(CompositeEntity container, String name)
            throws IllegalActionException, NameDuplicationException {
        super(container, name);
    proValArr = new TypedIOPort(this,"propertyValueArray",false,true);   
    proValArr.setTypeEquals(new ArrayType(BaseType.STRING));

    /*Use trigger port to fire BACnetReader
     */
        trigger = new TypedIOPort(this, "trigger", true, false);
    trigger.setMultiport(true);
    }
  

    public TypedIOPort proValArr;

    public TypedIOPort trigger;

    public Object clone(Workspace workspace) throws CloneNotSupportedException {
        BACnetReader newObject = (BACnetReader) (super.clone(workspace));
        // set the type constraints
        newObject.proValArr.setTypeEquals(new ArrayType(BaseType.STRING));
        return newObject;
    }

    public void initialize() throws IllegalActionException
   {
      super.initialize();

       /*Preapre processes to be executed
    */
       proc_arr = bacDevMan.getProcesses(prop_arr);  
       /* Set trigger state to be true
    */
       fireReader = true;
    }


    public void sendToken() throws IllegalActionException
    {
    super.sendToken();
    proValArr.send(0,new ArrayToken(BaseType.STRING,propval_tok));
    }

    public void fire() throws IllegalActionException {
        super.fire();
    /*Set trigger state
     */
    setTriggerState();
    if(fireReader){
        /*Prepare the tokens to be sent to outlet port
         */
        prepareTokensToSend();
        /*Send tokens to outlet port
         */       
        sendToken();

        /*Remove token in last time step*/
        removeToken();
    }
    }

    protected void setSchemaFileName(){
    schemaFileName =
        bcvtbhome + FS + "lib" + FS + "ptII" + FS + "bacnet" + FS + "BACnetReader.xsd";
    }

    protected void setTriggerState() throws IllegalActionException
    {
      if(trigger.numberOfSources()>0)
          {
          fireReader = false;
          if(trigger.hasToken(0))
            {
            fireReader = true;
                    }
          }
    }

    protected boolean fireReader;


}