Jun 20

Making Web Space Server And Web Services Play Nicely In A Single Instance Of The Glassfish Application Server

By Michael Czapski Sun No Comments »

It is likely that, at some point or another, a SOA-based solution will require a graphical user interface. In a typical 4 layer SOA stack SOA 1, the Presentation Layer, is delivered as a series of Web Applications, by preferences through a Portal-based solution. Sun Web Space Server 10 is a Free and Open Source Portal solution that can be readily integrated into a SOA infrastructure, for example one based on the GlassFish ESB v2.1 – the Free and Open Source ESB. How Web Space Server can be added to the GlassFosh ESB v2.1 infrastructure is discussed in the blog entry “Adding Sun WebSpace Server 10 Portal Server functionality to the GlassFish ESB v2.1 Installation”.
Web Space Server takes over the web container, in a manner of speaking, causing all web references to be redirected through to the portal infrastructure. This makes it impossible to interact with web services deployed to the instance of GlassFish. Web Services and Web Space Server do not play nicely together when installed in the manner discussed in the Blog.

This document provides instructions which will allow Web Services and Web Space Server to play nicely in the same instance of GlassFish by changing the servlet context which the Web Space Server manages from / to a different one. This will allow all other servlet contexts to be treated qas though the Web Space Server was not installed and will allow the two sets of functionality to coexist.

The credit for this solution goes to users@webspace.dev.java.net, in particular Srikanth Konjarla, Deepak Gothe and Allan Foster.

Here is the document, MakingWebSpaceServerAndWebServicesPlayNicely.pdf.

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Jun 14

Adding Sun WebSpace Server 10 Portal Server functionality to the GlassFish ESB v2.1 Installation

By Michael Czapski Sun 5 Comments »

The GlassFish ESB Suite can be used to develop and deploy Composite Applications, a cornerstone of SOA. It has the integration, connectivity and management functionality necessary to develop artifacts in the lower 3 of the 4 SOA Layers. To complete the stack, and provide artifacts in the SOA 1 (Presentation Layer) requires additional technologies. One assumes that a web-based user interface is what one would choose to develop a presentation layer of the composite application. One assumes further that the Composite Applications with the Web-based User Interface will be exposed through a standards-compliant Portal infrastructure as standards-compliant portlets, rather then stand-alone web applications.

This document walks through the process of installing the Sun WebSpace Server 10 Portal to the GlassFish ESB v2.1 installation and addition of Portal Pack tooling to the NetBeans 6.5 tooling packaged with the GalssFish ESB v2.1.

Adding_WebSpaceSewrver10_to_GlassFishESB_v2.1.pdf

Note (April 2010): This also works for Java CAPS 6.2
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May 15

Java CAPS Book – a Kindle edition

By Michael Czapski Personal No Comments »

I am tickled pink 🙂 I just found out, in a very round-about way, that the Java CAPS Book is now available in a Kindle Edition. Check it out: http://www.amazon.com/Java-CAPS-Basics-Implementing-ebook/dp/B0015DYM3M.

May 08

Right tools for the job? – Interesting discoveries when processing large volume of data

By Michael Czapski Sun No Comments »

Just now I had an occasion to work with an integration solution intended to process lots of records. By lots I mean over 1 million smallish records. My customary platform to experiment on is Windows XP. Lots of reasons for that, most of them historical – I have tools I know and like and so on. While trying to work with such a volume of data I noticed a number of “interesting” things, which I thought I should share. These things are related to both the platforms (Windows vs. Linux), the tools and the architectural decisions.

I needed lots off data to test the solution I was contemplating, which involved XML processing, to see how constructing and parsing XML affects solution performance. To make it easier to compare timing differences I though I should use lots of records.

The discoveries are discussed in Right tools for the job.pdf.

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May 07

Getting Hundreds of Files using Batch Local File eWay in Java CAPS 6

By Michael Czapski Sun 4 Comments »

Occasionally one needs to pick up and process a large number of files, on the order of hundreds or thousands. With the Batch Inbound eWay/JCA Adapter it is not possible to pick up more then one file per poll. The Batch Local File, if triggered by some event other then an appearance of a file in a directory, perhaps a Scheduler trigger or a manual trigger, with correctly designed logic, can process many files in a single invocation.

The document, ProcessingHundredsOfFileWithBatchAdapter.pdf, discusses how Batch Local File-based solution can be constructed to effectively process hundreds of files in a single pass.

This article references a ZIP archive “ProcessingHundredsOfFileWithBatchAdapter.zip“.

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May 04

Sending Secure Electronic Mail (S/MIME) in Java (CAPS) the Easy Way

By Michael Czapski Sun No Comments »

Every now and then one needs to secure communications between parties. Some would say it is necessary to do that all the time and perhaps it is. The issues are the complexity and expense. The complexity comes from having to configure a bunch of tools to support things like encryption and digital signatures for more then a single party. The expense comes from typically having to purchase cryptographic instruments from well known Certification Authorities, and keep on purchasing them all over again every 1 or 2 years. This discussion introduces a class library that offers a set of simple methods for constructing and sending secure electronic mail using the Secure Multipurpose Internet Mail Extensions (S/MIME), the Bounce Castle Cryptographic Libraries and the Java programming language. The intent is to allow a Java CAPS developer, or a Java developer, to add Secure Electronic Mail functionality quickly and easily, and without having to make too much of a time investment learning about PKI-based security and related matters. This addresses the complexity issue. The expense issue is addressed in my Blog Entry, “Producing Free, Private X.509 Certificates for use with PKI-based Solutions”, at http://blogs.sun.com/javacapsfieldtech/entry/producing_free_private_x_509. That blog discusses how to roll out a private Certification Authority and obtain X.509 Certificates., and other cryptographic objects, for free.

This document discusses the use of cryptographic software and manipulation of cryptographic objects. Using or discussing cryptography software is illegal in some parts of the world. It is you responsibility to ensure that you comply with any import/export and use laws that apply to you.

SendingSecureEMailUsingJavaCAPS.pdf

The ZIP archive, referenced in the document, is SecMail_and_extra_libs.zip

Reference is also made to the article “Producing Free, Private X.509 Certificates for use with PKI-based Solutions”.

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May 03

Producing Free, Private X.509 Certificates for use with PKI-based Solutions

By Michael Czapski Sun 2 Comments »

When working with PKI-based security solutions one typically requires one or more X.509 Certificates and related private keys. X.509 Certificates are typically purchased from well known Certification Authorities, such Verisign, for a fair amount of money and are valid for 1 or 2 years. It is not perhaps widely known that one can create a perfectly functional X.509 Certificate and use it in PKI-based solutions by oneself, free of charge and valid for an arbitrary amount of time. While tools are available to both generate key pairs and create X.509 Certificates, the how of it is somewhat obscure.  This document discusses the use of the OpenSSL software in creation of private PKI objects such as Key Pairs and X.509 Certificates and PKCS#12 Keystores. It discusses the use of Windows-based scripts, developed by the author, that make the process painless and quick.

This document discusses the use of cryptographic software and manipulation of cryptographic objects.  Using or discussing cryptography software is illegal in some parts of the world. It is you responsibility to ensure that you comply with any import/export and use laws that apply to you.

SettingUpCryptoToolsAndObjects.pdf

The document references the artifact archive, “PKI_Scripts_Windows“.

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Mar 13

Use Subversion with GlassFishESB, OpenESB or Java CAPS 6 for version control

By Michael Czapski Sun No Comments »

Java CAPS 5.x came with its own, built-in version control system, which many people liked and many despised. Java CAPS 6 Repository still has that version control system. Unlike the repository-based components standard NetBeans components, EJBs, and the JBI-based components, developed through the OpenESB Project and supported, for a fee, in the GlassFishESB product, must use an external version control system, if they are to be placed under version control.

This note discusses how a Subversion VCS can be installed on a Windows platform and used to provide version control for non-Repository components in Java CAPS 6 product and for projects in the GlassFishESB product and OpenESB project.

Clearly, non-Windows platforms can be similarly configured to support Subversion.

This Note, Subversion_with_OpenESB_GlassFishESB_or_JavaCAPS6, is a step-by-step guide to getting Subversion installed and configured to work with NetBeans 6.1. It is not a tutorial on version control.

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Feb 28

Java CAPS Quick Note 002 – JCA Transform HL7 Delimited to Custom XML

By Michael Czapski Sun 8 Comments »

This Quick Note discusses a solution to the use case provided by Marcus Davies.

I am trying to read HL7 from JMS (preferably stcms) and populate an outbound XML data structure (different to the XML generated by the decoder).
I have been thinking of doing one of the following […]:
1.    Use a Concrete JMS WS using the HL7 encoders to unmarshal the HL7 and use JAXB to populate the outbound XML.  Unfortunately this does not appear to connect to the stcms queue as I can not see any receivers
2.    Use a JCA MDB to read from the stcms JMS queue – this works but I don’t think I can use the HL7 encoder like this
3.    Use and MDB to read from JMS, manually unmarshal the HL7 and use JAXB to populate the data structure
Ideally I would like to use the HL7 encoders.  Do you think the first approach should work?

Number 1 will not work as at end of February 2009 because the JMS BC does not properly decode the HL7 delimited message. This is a know issue. I don’t know what the status of this is. The only BCs that know how to deal with HL7 delimited, that I know of, are the File BC and the HL7 BC.

Number 2 should work. I did not personally try it. You can invoke an encoder library from Java. Have a look at http://wiki.open-esb.java.net/Wiki.jsp?page=UseEncodersInJavaSE.

Number 3 should work but it will be very laborious.

I have a Number 4, which uses a HL7 OTD and a custom XSD-based OTD in a JCA EJB. You may or may not like it but it’s the best thing to do if you can not use BPEL 2.0 to do the mapping and you don’t want to build a repository-based solution (which would be the best for your case anyway).

The solution involves the use of:
1.    HL7 2.3.1 OTD Library (Java CAPS 6 Repository)
2.    JMS JCA to trigger a MDB with a HL7 Delimited message
3.    JMS JCA to write result message out
4.    JCA MDB to do the processing
5.    OTDImporter to provide HL7 2.3.1 OTD and custom XSD-based OTD to the EJB for “convenient” mapping

Brief steps to implement this solution are given in Quick Note 002 at QuickNote002_For_Marcus_Davies.pdf. Archive containing project exports and sample data is provided at QuickNote002.zip. The code will work in Java CAPS 6 Update 1.

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Feb 27

Java CAPS Quick Note 001 – Split file into multiple files

By Michael Czapski Sun 2 Comments »

This Quick Note discusses a solution to the use case provided by Richard Kuiter.

An input file contains the following records:

H100000000000014099120ASN00507
L1140991200000008261850826185738
L1140991200000008261850826185738
L1140991200000008261850826185738
L1140991200000008261850826185738
L1140991200000008261850826185738
L1140991200000008261850826185738
H100000000000014099126ASN00531
L1140991260000008262690826269662
L1140991260000008262690826269662
L1140991260000008262690826269662
L1140991260000008262690826269662
L1140991260000008262690826269662

It is required that each block of records starting with the H1 (header) record and containing all the following L1 (line) records, be written to a different file.

The solution involves the use of:
1.    Batch Inbound eWay to locate the input file and provide its name and location to a Java Collaboration Definition
2.    Batch Local File eWay to provide an Input Stream to the Batch Record eWay
3.    Batch Record eWay to break up the input stream into records delimited by carriage return+new line
4.    Batch Local File eWay to write each block of records to a file with a distinct name

Brief steps to implement this solution are given in the full Quick Note as QuickNote_001. The collaboration code will work in Java CAPS 5 and 6 Repository.

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