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From "Howard W. Smith, Jr." <smithh032...@gmail.com>
Subject Re: @Singleton @Lock(READ) to resolve, Could not instantiate converter ...
Date Sun, 14 Apr 2013 01:37:11 GMT
It would be nice if TomEE 'logs' the JNDI lookup path as the Reference
Implementation (Glassfish) does! I had to say that. :)


On Sat, Apr 13, 2013 at 9:34 PM, José Luis Cetina <maxtorzito@gmail.com>wrote:

> Congrats. Howard. Just FYI tomee logs the ejb "path" of all yours ejbs
> deployed and is not necesary to implement an interface for use jndi.
>
> Good to see that you got a solution.
>
> Regards.
> El 13/04/2013 19:58, "Howard W. Smith, Jr." <smithh032772@gmail.com>
> escribió:
>
> > On Sat, Apr 13, 2013 at 1:00 PM, José Luis Cetina <maxtorzito@gmail.com
> > >wrote:
> >
> > > When i dont want to use codi I use jndi lookup, it is to easy to use
> and
> > > portable. I create a simple method for retrive my ejbs without using
> codi
> > > instead i use jndi using only the name of the ejb class.
> > > El 13/04/2013 11:45, "Howard W. Smith, Jr." <smithh032772@gmail.com>
> > > escribió:
> > >
> > >
> > José,
> >
> > JNDI works, thank you!  This was the first time I 'ever' had to use JNDI
> > lookup. I had to research it (search google, look at TomEE examples - ejb
> > reference[1][2][3], surely did not want to create an 'interface', kept
> > looking, looked at tomee log, as i know it lists all @EJBs at startup in
> > the log, didn't see what i was looking for, so i looked at RI/Glassfish
> > log, since i 'remembered' that RI/Glassfish mentions the JNDI lookup path
> > for all my @EJB's in the glassfish log at 'startup' of my app)...
> >
> > So, per an oracle blog[4][5] about JNDI lookup and what i saw in
> glassfish
> > log (12/9/2012 was last time i used glassfish to start my app...smile), I
> > modified the @Singleton @Lock(READ) bean, accordingly (see code below),
> > tested it, and voila, it works!!!! :)
> >
> >
> > /*
> >  * To change this template, choose Tools | Templates
> >  * and open the template in the editor.
> >  */
> > package converter;
> >
> > import java.util.concurrent.TimeUnit;
> >
> > import javax.ejb.AccessTimeout;
> > import javax.ejb.Lock;
> > import javax.ejb.LockType;
> > import javax.ejb.Singleton;
> >
> > import javax.faces.component.UIComponent;
> > import javax.faces.context.FacesContext;
> > import javax.faces.convert.Converter;
> > import javax.faces.convert.FacesConverter;
> >
> > import javax.naming.InitialContext;
> >
> > import jpa.entities.Customer;
> > import jpa.session.CustomerFacade;
> >
> >
> > @Singleton
> > @Lock(LockType.READ)
> > @AccessTimeout(value = 1, unit = TimeUnit.MINUTES)
> > @FacesConverter(forClass = Customer.class)
> > public class CustomerConverter implements Converter {
> >
> >     public CustomerConverter() {
> >
> >     }
> >
> >     public Object getAsObject(FacesContext facesContext, UIComponent
> > component, String value) {
> >         if (value == null || value.length() == 0) {
> >             return null;
> >         }
> >         /*
> >          * 2012-07-10 when user enters invalid/incomplete value (e.g.
> > "irene", see below) in AutoComplete
> >          *
> >         WARNING: For input string: "irene"
> >         java.lang.NumberFormatException: For input string: "irene"
> >                 at
> >
> >
> java.lang.NumberFormatException.forInputString(NumberFormatException.java:65)
> >                 at java.lang.Integer.parseInt(Integer.java:492)
> >                 at java.lang.Integer.valueOf(Integer.java:582)
> >                 ...
> >                 ...
> >                 at
> >
> >
> org.primefaces.component.autocomplete.AutoCompleteRenderer.getConvertedValue(AutoCompleteRenderer.java:529)
> >                 at
> > javax.faces.component.UIInput.getConvertedValue(UIInput.java:1030)
> >                 at
> javax.faces.component.UIInput.validate(UIInput.java:960)
> >          *
> >          */
> >         try {
> >             Integer test = getKey(value);
> >         } catch (java.lang.NumberFormatException e) {
> >             return null;
> >         }
> >         Object object = null;
> >         CustomerFacade ejbFacade;
> >         try {
> >             InitialContext ic = new InitialContext();
> >             ejbFacade = (CustomerFacade)
> > ic.lookup("java:global/mcmsweb/CustomerFacade");
> >             if (ejbFacade == null) {
> >                 System.err.println("CustomerConverter.getAsObject():
> > ejbFacade = null)");
> >                 return null;
> >             }
> >         } catch (Exception e) {
> >             System.err.println("CustomerConverter.getAsObject(): error on
> > JNDI lookup of CustomerFacade");
> >             e.printStackTrace();
> >             return null;
> >         }
> >         try {
> >             object = ejbFacade.find(getKey(value));
> >         } catch (Exception e) {
> >             System.err.println("CustomerConverter.getAsObject(): error on
> > ejbFacade.find(getKey(value))");
> >             e.printStackTrace();
> >             return null;
> >         }
> >         return object;
> >     }
> >
> >     java.lang.Integer getKey(String value) {
> >         java.lang.Integer key;
> >         key = Integer.valueOf(value);
> >         return key;
> >     }
> >
> >     String getStringKey(java.lang.Integer value) {
> >         StringBuffer sb = new StringBuffer();
> >         sb.append(value);
> >         return sb.toString();
> >     }
> >
> >     public String getAsString(FacesContext facesContext, UIComponent
> > component, Object object) {
> >         if (object == null) {
> >             return null;
> >         }
> >         if (object instanceof Customer) {
> >             Customer o = (Customer) object;
> >             return getStringKey(o.getCustomerId());
> >         } else {
> >             throw new IllegalArgumentException("object " + object + " is
> of
> > type " + object.getClass().getName() + "; expected type: " +
> > Customer.class.getName());
> >         }
> >     }
> > }
> >
> >
> > tomee examples - ejb reference
> > [1] http://tomee.apache.org/examples-trunk/injection-of-ejbs/README.html
> > [2]
> >
> >
> http://tomee.apache.org/examples-trunk/lookup-of-ejbs-with-descriptor/README.html
> > [3] http://tomee.apache.org/examples-trunk/lookup-of-ejbs/README.html
> >
> > oracle blogs
> > [4]
> >
> >
> https://blogs.oracle.com/kensaks/entry/application_specified_portable_jndi_names
> >
> > which references the following, but needed to replace 'sun' with 'oracle'
> > in the URL
> >
> > [5] https://blogs.oracle.com/kensaks/entry/portable_global_jndi_names
> >
>

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