Custom OIR Rule Algorithm

[pwilliams-3]

Has anyone implemented a custom OIR rule algorithm that implements the RuleAlgorithm interface? If so then is it possible to pass a handle to the object being created to the RuleAlgorithm.calculate() method? For example pass a handle to an EPMDocument in the Object[] array?

public Object calculate(Object[] paramArrayOfObject, WTContainerRef paramWTContainerRef)

Patrick Williams | Engineering Systems | c: 616.947.2110
[cid:image001.jpg@01CD807F.0A867BC0]

[ddemay]

Patrick,



As the object is not persisted yet, it would not be for any current
document/object, you could pass in some type of metadata in the XML that
allows the algorithm to query for something? Typically paramArrayOfObject[0]
is actually a String. The array is formed from the <arg></arg> tags defined
in the XML file for that algorithm.





Regards,

David DeMay

[Cat]

1. 1.     Implement Java code of custom RuleAlgorithm by implementing interface wt.rule.algorithm.RuleAlgorithm

• Create java code, see below for sample:

For Scenario 1A:

package ext.mytest;

/**
* <p>Title: </p>
* <p>Description: </p>
* <p>Copyright: </p>
* <p>Company: </p>
*
* @author not attributable
* @version 1.0
*/
import wt.rule.algorithm.RuleAlgorithm;
import wt.enterprise.EnterpriseHelper;
import wt.util.WTException;
import wt.inf.container.WTContainerRef;
import java.util.TimeZone;
import java.text.*;
import java.util.*;

public class customNumberRule implements RuleAlgorithm {

public Object calculate(Object args[], WTContainerRef container) throws //
WTException {

// Add current date to the end of the generated number
String num = EnterpriseHelper.getNumber(args);  //This is OOTB
Calendar gmtlocal = new GregorianCalendar(TimeZone.getTimeZone("GMT+8"));
SimpleDateFormat sf = new SimpleDateFormat("yyyyMMdd");
sf.setTimeZone(TimeZone.getTimeZone("GMT+8"));
num =  sf.format(gmtlocal.getTime())+"-" + num;

return num;

}

}

For Scenario 1B:

1. 1. Need to handle Date type attribute(IBA) by removing time and only keep date:

public class customNumberRule implements RuleAlgorithm {

public Object calculate(Object args[], WTContainerRef container) throws WTException {
String num= "";
if (args!=null && args.length>0) {
for (int i=0; i<args.length; i++) {
if (args[i] instanceof java.sql.Timestamp) {
  Date date = new Date(((java.sql.Timestamp)args[i]).getTime());
  num += wt.util.WTStandardDateFormat.format(date, "yyyyMMdd");
}
  else
  num += args[i].toString();
}
}
         return num;
}

1. 2. Create the file in $WT_HOME/src/ext/VariableCNNumberPrefix.java, and then compile it into $WT_HOME/codebase/ext/ and update the OIR

package ext;

import wt.enterprise.EnterpriseHelper;
import wt.inf.container.WTContainerRef;
import wt.rule.algorithm.RuleAlgorithm;
import wt.util.WTException;
import wt.util.WTProperties;

public class VariableCNNumberPrefix implements RuleAlgorithm {

public Object calculate(Object args[], WTContainerRef container) throws WTException {

// Determine the server hostname
String serverHostName = "";
try {

serverHostName = WTProperties.getLocalProperties().getProperty("wt.rmi.server.hostname");

} catch (Throwable t) {

1. t.printStackTrace();

}
// OOTB code to get the next number in the sequence
String num = EnterpriseHelper.getNumber(args);

// Set the default prefix, and change it if we're on a different server
String prefix = "ECN";

if (serverHostName.equals("<enter_test_server_name_here>")) {

prefix = "TST";

}
// Concantentate the prefix with the number from the ECO number.
num = prefix + num;
return num;

}

}

1. 2.     Update OIR file by changing the algorithm used from

         <AttrValue id="number" algorithm="com.ptc.windchill.enterprise.revisionControlled.server.impl.NumberGenerator">
<Arg>{GEN:wt.enterprise.SequenceGenerator:WTPARTID_seq:10:0}</Arg>
</AttrValue>

To (scenario 1A):

         <AttrValue id="number" algorithm="ext.mytest.customNumberRule">
<Arg>{GEN:wt.enterprise.SequenceGenerator:WTPARTID_seq:10:0}</Arg>
</AttrValue>

OR (scenario 1B):

         <AttrValue id="number" algorithm="ext.mytest.customNumberRule">
<Arg>{GEN:wt.enterprise.SequenceGenerator:WTPARTID_seq:10:0}</Arg>
<Attr id="<dateTypeAttribute>"/>
</AttrValue>