Jun 27

Healthcare Facility Mashup Portlet with Google Map – GlassFish v 2.1, Web Space 10, Web Service and REST Service

By Michael Czapski Sun No Comments »

The Portlet developed in the previous blog gives plain facility details. A richer Portlet could use the facility address to show the facility location on a Map.

Here I will walk through development of a Visual Web JSF Mashup Portlet, which will use a Web Service as a data provider to get facility details and a Google Maps REST Service to get the Google map displaying facility location. I use the NetBeans 6.5.1 IDE, part of the GlassFish ESB v2.1 installation, the Portal Pack 3.0.1 NetBeans Plugin and the JSF Portal Bridge provided by the Web Space Server 10. The Portlet will use JSF components provided by Project Woodstock. The Google Map service is integrated into NetBeans IDE. Technologies will be introduced in a practical manner.

It took me some effort to work out how to add a Google Map to a Portlet so I though I will share the experience.

This is not a tutorial on JavaServer Faces, Visual Web JSF, Project Woodstock, Portlet development or Google Maps usage.

Here is the document: 01_FacilityService_WebSpacePortletWithGoogleMap.pdf

Here is an archive containing all the projects developed in this and the last 3 blog entries: 01_FacilityService_all_project.zip

As provided, the ui_facility table has a bunch of addresses which are fairly silly and will never get a proper map. This MySQL script has a bunch of SQL update statements to replace these addresses with real addresses that are mappable.

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Jun 24

NetBeans 6.5.1, GlassFish v 2.1, Web Space Server 10 – Creating a Healthcare Facility JSR286-compliant Portlet

By Michael Czapski Sun No Comments »

In some views SOA is represented as a series of 4 layers: Presentation Layer (SOA 1), Business Process Layer (SOA 2), Business Service Layer (SOA 3) and Technical Layer (SOA 4). Typically each layer higher up in the hierarchy consumes services exposed by the layer under it. So the Presentation Layer would consume services provided by the Business Process or Business Service Layers. Service interfaces are described using Web Services Description Language (WSDL), sheltering service consumers from details of service implementation. Web Services are seen as the technical means to implement the decoupled functional layers in a SOA development. Decoupling allows implementations of business functionality at different layers to be swapped in and out without disturbing other layers in the stack. The SOA 1, Presentation Layer, is often implemented as JSR-168-compliant or JSR-286-complaint Portlets, exposed through a standards-based Portal.

The business idea is that patients are looked after in various healthcare facilities. Applications need to allow selection of a facility and to access facility details for display to human operators. A relational holds details of facilities which are a part of the healthcare enterprise. Facility list and details are available through a web service. This web service will be used to construct the JSR-286-comliant Portlet that provides a user view into the facilities and facility details. This Portlet will be deployed to the Sun FOSS Web Space Server 10 Portal.

Previous documents in this series, “GlassFish ESB v 2.1   Creating a Healthcare Facility Web Service Provider” and “NetBeans 6.5.1 and GlassFish v 2.1 – Creating a Healthcare Facility Visual Web Application”, walked the reader through the process of implementing a GlassFish ESB v2.1-based web service which returns facility list and facility details, and a Visual Web JSF Web Application which used that Web Service to display facility list and details.
In this document I will walk through the process of developing a JSR-286-compliant Visual Web JSF Portlet, deployed to the Sun Web Space Server 10 Portal, which will use the Web Service as a data provider. We will use the NetBeans 6.5.1 IDE, which comes as part of the GlassFish ESB v2.1 installation, the Portal Pack 3.0.1 NetBeans Plugin and the JSF Portal Bridge infrastructure provided by the Web Space Server 10. The Portlet will be implemented as a Visual Web JavaServer Faces Portlet using JSF components provided by Project Woodstock. The Portlet will introduce the technology in a practical manner and will show how a web service can be used as a data provider, decoupling the web application from the data stores and specifics of data provision.

Note that this document is not a tutorial on JavaServer Faces, Visual Web JSF, Project Woodstock components or Portlet development. Note also that all the components and technologies used are either distributed as part of the NetBeans 6.5, as part of the GalssFish ESB v2.1, as part of the Web Space Server 10 or are readily pluggable into the NetBeans IDE. All are free and open source.

Here is the document: 01_FacilityService_WebSpacePortlet.pdf

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Jun 23

NetBeans 6.5.1 and GlassFish v 2.1 – Creating a Healthcare Facility Visual Web Application

By Michael Czapski Sun No Comments »

In some views SOA is represented as a series of 4 layers: Presentation Layer (SOA 1), Business Process Layer (SOA 2), Business Service Layer (SOA 3) and Technical Layer (SOA 4). Typically each layer higher up in the hierarchy consumes services exposed by the layer under it. So the Presentation Layer would consume services provided by the Business Process or Business Service Layers. Service interfaces are described using Web Services Description Language (WSDL), sheltering service consumers from details of service implementation. Web Services are seen as the technical means to implement the decoupled functional layers in a SOA development. Decoupling allows implementations of business functionality at different layers to be swapped in and out without disturbing other layers in the stack.

The business idea is that patients are looked after in various healthcare facilities. Frequently applications need to allow selection of a facility and to access facility details for display to human operators. A relational database is used to hold the details of facilities which are a part of the healthcare enterprise. To shelter application developers from the details of the data store facility list and details are made available as a multi-operation web service. This web service will be used to construct the web application that provides a user view into the facilities and facility details.

The previous document in this series, “GlassFish ESB v 2.1   Creating a Healthcare Facility Web Service Provider”, walked the reader through the process of implementing a GlassFish ESB v2.1-based, multi-operation web service which returns facility list and facility details. In this document I will walk through the process of developing a Visual Web Application which will use the Web Service as a data provider. We will use the NetBeans 6.5.1 IDE, which comes as part of the GlassFish ESB v2.1 installation. The application will be implemented as a Visual Web JavaServer Faces Application using JSF component provided by Project Woodstock. This application will introduce the technology in a practical manner and show how a multi-operation web service can be used as a data provider, decoupling the web application from the data stores and specifics of data provision.

Note that this document is not a tutorial on JavaServer Faces, Visual Web JSF, Project Woodstock components or Web Application development. Note also that all the components and technologies used are either distributed as part of the NetBeans 6.5, as part of the GalssFish ESB v2.1 or are readily pluggable into the NetBeans IDE. All are free and open source.

It is assumed that a GlassFish ESB v2.1-based infrastructure, supplemented by the Sun WebSpace Server 10 Portal functionality and a MySQL RDBMS instance, are available for development and deployment of the web application discussed in this paper. It is further assumed that the web service, developed using instructions in “GlassFish ESB v 2.1 – Creating a Healthcare Facility Web Service Provider”, is available and deployed to the infrastructure. The instructions necessary to install this infrastructure are discussed in the blog entry “Adding Sun WebSpace Server 10 Portal Server functionality to the GlassFish ESB v2.1 Installation”, supplemented by the material in blog entry “Making Web Space Server And Web Services Play Nicely In A Single Instance Of The Glassfish Application Server”.

Here is the document – 01_FacilityService_WebApplication.pdf

While I am migrating my blog to blogs.czapski.id.au some links in older posys may be broken. For as long as it works, go to the http://blogs.sun.com/javacapsfieldtech/ find the post with the identical title.
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Jun 22

GlassFish ESB v 2.1 – Creating a Healthcare Facility Web Service Provider

By Michael Czapski Sun 6 Comments »

In some views SOA is represented as a series of 4 layers: Presentation Layer (SOA 1), Business Process Layer (SOA 2), Business Service Layer (SOA 3) and Technical Layer (SOA 4). Typically each layer higher up in the hierarchy consumes services exposed by the layer under it. So the Presentation Layer would consume services provided by the Business Process or Business Service Layers. Service interfaces are described using Web Services Description Language (WSDL), sheltering service consumers from details of service implementation. Web Services are seen as the technical means to implement the decoupled functional layers in a SOA development. Decoupling allows implementations of business functionality at different layers to be swapped in and out without disturbing other layers in the stack.
In this document I will walk through the process of developing a SOA Composite Application, exposed as a Web Service, which will make available simple business functionality using a multi-operation service. We will use the GalssFish ESB v2.1 infrastructure. The service will use the SOAP/HTTP Binding Component, the Database Binding Component and the BPEL 2.0 Service Engine. This simple service will introduce the components and discuss how a multi-operation web service can be constructed using the GalssFish ESB.
The business idea is that patients are looked after in various healthcare facilities. Frequently applications need to allow selection of a facility and to access facility details for display to human operators. A relational database is used to hold the details of facilities which are a part of the healthcare enterprise. To shelter application developers from the details of the data store facility list and details will be made available as a multi-operation web service. This web service will be used elsewhere to construct a portlet that can be used in an enterprise portal.

The document is available as 01_FacilityService_GFESBv21.pdf

Late breaking news: The MySQL JDBC Driver, which I used in the example, mysql-connector-java-5.1.7-bin.jar, and which is distributed with the GlassFish ESB v2.1, causes connection pool exhaustion and other issues with the example. If you experience these issues pleases download the latest MySQL JDBC Driver, mysql-connector-java-5.1.11-bin.jar as at now, from http://dev.mysql.com/downloads/connector/j/5.1.html and replace the original in domains/domain1/lib/ext.

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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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