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Date: Tue, 12 Jul 2011 11:54:17 -0400
Message-ID: 
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Subject: Re: Encryption and Decryption
From: Saibabu Vallurupalli <saibabu.vallurupalli@gmail.com>
To: dev@openjpa.apache.org
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Hi Rick,

Yesterday I completed the development and spent lot of time in deploying to
run the tests. I did this fix in Apache James Mailbox/JPA environment.
Was not able to fix the other issue with runtime, after deploying and
starting James server it comes up well. During runtime when I am sending an
email IMAP Server fails throwing error as below:
***************
DEBUG 13:57:43,019 | james.imapserver | ID=171407124 Error while processing
imap request
java.lang.NoSuchMethodError: org.apache.james.mailbox.jpa.
mail.model.openjpa.JPAMessage.<init>(Ljava/io/InputStream;JILjava/util/List;Lorg/apache/james/mailbox/store/mail/model/PropertyBuilder;)V
    at
org.apache.james.mailbox.jpa.mail.model.openjpa.JPAMailboxMembership.<init>(JPAMailboxMembership.java:59)
***************

I am wondering if this has something to do with OpenJPA version I am using
as part of Apache James.
When I went and looked under James/lib folder I see "openjpa-2.0.1.jar". Is
this is correct JAR supporting the @Externalizer and @Factory
implementations?

Please advise.

Thank you,
Sai


On Mon, Jul 11, 2011 at 11:41 AM, Rick Curtis <curtisr7@gmail.com> wrote:

> Great! Let us know how it goes.
>
> On Mon, Jul 11, 2011 at 10:31 AM, Saibabu Vallurupalli <
> saibabu.vallurupalli@gmail.com> wrote:
>
> > Hi Rick,
> > After running into the issue I mentioned above. I read the documentation
> of
> > using @Externalizer / @Factory annotations and tried something below:
> >
> > Modified org.apache.james.mailbox.jpa.mail.model.openjpa.JPAMessage.java
> by
> > adding the lines below:
> > *************
> > /** The value for the body field. Lazy loaded */
> >    /** We use a max length to represent 1gb data. Thats prolly overkill,
> > but who knows */
> >     @Basic(optional = false, fetch = FetchType.LAZY)
> >    @Column(name = "MAIL_BYTES", length = 1048576000, nullable = false)
> >    * @Externalizer("CustomJPAMessage.getEncryptedMessage")
> >    @Factory("CustomJPAMessage.getDecryptedMessage")*
> >    @Lob private byte[] body;
> > *************
> >
> > Created CustomerJPAMessage java class and added the methods like below:
> > *************
> > package org.apache.james.mailbox.jpa.mail.model.openjpa;
> >
> > public class CustomJPAMessage
> > {
> >
> >    public static byte[] getEncryptedMessage(byte[] body)
> >    {
> >        return body;
> >    }
> >
> >    public static byte[] getDecryptedMessage(byte[] body)
> >    {
> >        return body;
> >    }
> > }
> > *************
> >
> > Everything worked great. Now, I understood how to use these annotations.
> >
> > Working on using JASYPT API.
> >
> > Thank you all so much for putting me in right direction.
> >
> > Thanks,
> > Sai
> >
> >
> > On Mon, Jul 11, 2011 at 10:27 AM, Rick Curtis <curtisr7@gmail.com>
> wrote:
> >
> > > Saibabu -
> > >
> > > I'll put together a small example of how to use @Externalizer /
> @Factory
> > > with JASYPT sometime here this morning.
> > >
> > > Thanks,
> > > Rick
> > >
> > > On Mon, Jul 11, 2011 at 7:58 AM, Saibabu Vallurupalli <
> > > saibabu.vallurupalli@gmail.com> wrote:
> > >
> > > > Hi Pinaki,
> > > >
> > > > Good morning.
> > > > I tried the approach of using @Externalizer annotation as below and
> got
> > > an
> > > > error says @Externalizer can be only used for methods not for fields.
> > > Then
> > > > I
> > > > have gone through the documentation and found I should be using
> > > > @ExternalValues and after using I started getting error as below:
> > > >
> > > > ***********
> > > > Caused by: <openjpa-2.1.0-r422266:1071316 fatal user error>
> > > > org.apache.openjpa.p
> > > > ersistence.ArgumentException: The field
> > > > "org.apache.james.mailbox.jpa.mail.model
> > > > .openjpa.JPAMessage.body" cannot use the external-values property.
> > > External
> > > > valu
> > > > es can only be declared for fields of primitives, primitive wrappers,
> > or
> > > > strings
> > > > .
> > > >        at
> > > > org.apache.openjpa.meta.FieldMetaData.transform(FieldMetaData.java:15
> > > > 38)
> > > > **********
> > > >
> > > > Can you please advise me where I am going wrong.
> > > >
> > > > Thank you,
> > > > Sai
> > > >
> > > > On Fri, Jul 8, 2011 at 4:57 PM, pvalluri <
> > saibabu.vallurupalli@gmail.com
> > > > >wrote:
> > > >
> > > > > Hi Pinaki,
> > > > >
> > > > > Yes, This is really easy and cool. I am still in process of setting
> > up
> > > my
> > > > > development environment for James to add this annotation in my
> class
> > > and
> > > > a
> > > > > question popped up in my mind.
> > > > > Just adding annotation will take care of both
> Encryption/Decryption.
> > I
> > > > > don't
> > > > > have to do anything else :-)
> > > > > Can't believe, Thanks so much for suggesting this solution.
> > > > >
> > > > > I have a class with filed declared as shown below:
> > > > > *********
> > > > > public class JPAMessage extends AbstractJPAMessage {
> > > > >
> > > > >    /** The value for the body field. Lazy loaded */
> > > > >    /** We use a max length to represent 1gb data. Thats prolly
> > > overkill,
> > > > > but who knows */
> > > > >     @Externalizer
> > > > >     @Basic(optional = false, fetch = FetchType.LAZY)
> > > > >    @Column(name = "MAIL_BYTES", length = 1048576000, nullable =
> > false)
> > > > >    @Lob private byte[] body;
> > > > >
> > > > > // methods related to this class getter and creator...here...
> > > > > }
> > > > > ********
> > > > > Is this the correct way of doing it. Sorry for asking the same
> > question
> > > > > again. I am very new to OpenJPA and this has become real critical
> for
> > > us.
> > > > >
> > > > > Thank you very much in advance.
> > > > >
> > > > > Thanks, Sai.
> > > > >
> > > > >
> > > >
> > >
> > >
> > >
> > > --
> > > *Rick Curtis*
> > >
> >
>
>
>
> --
> *Rick Curtis*
>

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