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Channel: Enterprise Integration Patterns: Gregor's Ramblings
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Eric Newcomer is on to me

You can only get away with joking about transactions for so long before the gods of transactions bring you to justice. So is was only a matter of time before Eric Newcomer would catch me waxing about...

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Google Developer Day

Last week Google held a developer day in 10 cities around the world. Here are my take-aways.

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API's are for Humans, too

When graphical user interfaces became popular thrifty people had the idea that they could generate them automatically. Well, that bubble burst pretty quickly. When people say nothing is new with Web...

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Users Like Events

Two weeks ago I presented a keynote at the DEBS (Distributed Event-based Systems) conference. The emphasis of the conference was on academic work in the field but event-based systems are rapidly...

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I Want My Events

Last time I claimed that users like events. This time I want to show how I fulfilled my personal desire for events off the Web. I built two solutions to alert me to new book reviews on Amazon, one...

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Mashup Camp

I attended the first day of Mashup Camp today. The event took place at the Computer History Museum, which is actually walking distance from my office. Ironically, the only day in the year when...

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Mashups == EAI 2.0?

Mashups pull data from different sources, aggregate and transform the data to be used in different contexts. EAI solutions pull data from different sources, aggregate and transform the data to be used...

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Mashups Tools Market

As I reported from Mashup Camp, an increasing number of vendors play in the mashup space. I am obviously not the only one who noticed. Dion Hincliffe recently discussed 17 different mashup tools. Maybe...

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Facebook Developer Garage

The Internet is cruel. So you finally made the leap from EAI stone age to become a hip mashup developer. Now it turns out you are once again behind the curve, Unless you've written your won Facebook...

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Enterprise Mashup Summit

I attended the Enterprise Mashup Summit last Friday. It was a small-ish event, with about 50 people attending. We saw about 10 presentations, mostly by vendors plus an open forum. None of the...

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Bubble 2.0

What’s wrong with this picture? I crash a stylish party at a pricey venue (SF Moma). I have no business being there, nor do I have the required invitation. I nonchalantly talk my way in, and hit the...

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Double-Dipping: OOPSLA and Colorado Software Summit

I am just returning from a trip to Montreal and Keystone, CO for the OOPSLA and Colorado Software Summit conferences. I spoke on SOA Patterns, workshopped my conversation pattern paper, and gave six...

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Google Gears Live From Japan

Since Google's Developer Day, I have been promising to speak more regularly about Google products. This is a bit of a balancing act for me, as I want to avoid the slippery slope of becoming a corporate...

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Reflecting on Enterprise Integration Patterns

The end of the year is always the time to reflect on the past happenings. My friends in Japan often send a New Year's card with 12 pictures, each showing the significant event during the month. I am...

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Design Patterns: More than meets the eye

Blogging about design patterns seems about as original as blogging about the Java (TM) Programming Language, except for the missing (TM). However, as I just attended a workshop on software service...

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Into the Clouds on New Acid

I have been speaking more frequently about cloud computing in recent days. As SOA is becoming a daily reality, I needed to advance to new, still slightly nebulous topic. What could be a better fit than...

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Google I/O

I guess I am the last person to blog about Google I/O. By now, everyone should have read about Wave and the free Android phone (with 30 day SIM!). I am just now getting to write this up on my flight...

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My First Google Wave Robot

By now everyone must have heard about Google Wave, the communication and collaboration platform announced at Google I/O. Google just announced that they are ramping up towards 20,000 developers on the...

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Clouds and Integration Patterns at JavaOne

I joined JavaOne this year as a panelist on Cloud Computing. Here my belated impressions on this year's JavaOne.

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EIP Visions

The beginning of a New Year is the time to reflect on the past and make resolutions for the future. It's become my tradition to kick off the year with some reflection on EIP, so here we go.

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A Chapter a Day...

My New Year's resolution was to write more, so here my thoughts on how to actually make that happen. In a sense it's a plan for myself to be more productive, but hopefully the ideas also work for other...

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What Does It Mean to Use Messaging?

I was recently asked to help a team decide whether they should use messaging. Of course, I have not forgotten what I learned during many years in consulting: the consultant always answers "it depends."...

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DDD - Diagram Driven Design

Drawing a picture turns out to be a useful system design technique.

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Explaining Stuff

At a recent presentation, Martin Fowler introduced himself as a guy "who is good at explaining things". While this certainly has a touch of British Understatementâ„¢, it also highlights a critically...

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Writing for Busy People

One advantage of working for a relatively large organization is that I get to do a little more writing again. Not because I have spare time, but because in times of rapid change, communication across a...

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The 3 Legs of an Architect

Defining what a software or IT architect is or does is no less challenging than defining software architecture itself. The SEI maintains a list of software architecture definitions, yet I have not seen...

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The Architect Elevator

Architects frequently play a critical role as connecting and communicating element between multiple parties. Especially in large organizations such communication is an important factor: too many...

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Sync or Swim

We were tempted multiple times to extend the EIP icon language, but always felt that simplicity should win over precision. However, seeing the visual vocabulary that my former Google colleague Ivan...

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RESTful Conversations

As indicated a good while ago I spent some time thinking about patterns that instead of following a message through multiple systems, looks at the message exchange over time between a (mostly) fixed...

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Google Cloud Pub/Sub

Google released the beta version of their publish-subscribe API just a few weeks ago. I show how to build a very simple demo app using the Java API and map the functionality to integration patterns to...

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Free Gift with Subscription (Pattern)

Discussing the Google cloud Pub/Sub system in the last rambling reminded me that the Publish-subscribe Channel pattern makes for a good example of the subtle but important difference between Messaging...

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SATURN Conference 2015

I have not blogged about events in a while, but SATURN 2015 has been an amazing event that's well worth rambling about.

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Same Old Architecture - Best of Ramblings

Architects can often be found commenting or complaining that many things in IT are the same old stuff in new packaging, created by marketing departments who were in need of a new buzzword. For example,...

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Is This Architecture? Look for Decisions!

Part of my job is to review system architectures. So I frequently ask teams to show me "their architecture", but almost as frequently I don't consider what I receive an architecture document. The...

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Virtualization Matryoshka

IT loves virtualizing stuff, following the old rule that in computer science every problem can be solved by just one more level of indirection. Cloud computing is based on virtualization of compute...

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Movie Star Architects

I recently wrote about architects and the role they play in large organizations. Still, the question often remains what an architect should be doing besides "riding the elevator". Let's try another...

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If you never kill anything, you will live among zombies. And they will eat...

Corporate IT lives among zombies: old systems that are half alive and have everyone in fear of going anywhere near them. They are also tough to kill completely. Worse yet, they eat IT staff's brains....

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If software eats the world, you better use version control!

As I recently observed, Corporate IT tends to be afraid of code: code is where all the pesky bugs come from, which have to be fixed by quirky, expensive, and unreliable developers or external...

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The Architect’s Penthouse Bookshelf

When you hitchhike through the galaxy, a towel will generally do. To ride the you need to be a bit better equipped. Riding the elevator up and down is exciting and provides tremendous value to the...

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How to Scale an Organization? The same way you scale a system!

The digital world is all about scalability: millions of web sites, billions of hits per month, more data, more tweets, more images uploaded. To make this work, architects have learned a ton about...

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25 Years of OOP

OOP is one of the conferences that originated in the "OO" era of the early to mid-nineties. While most of these events have shed the double "O" -- OOPSLA has become SPLASH and JAOO has become GOTO, OOP...

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37 Things or "Where have all my ramblings gone?"

About two years ago, I revived the ramblings from a four-year hibernation. Upon resurrection, the ramblings started to take a broader scope, including not only messaging, conversations, and patterns,...

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Modern Examples for Enterprise Integration Patterns

Enterprise Integration Patterns are timeless as underlined by the fact that the book keeps selling well over 13 years after its publication in 2003. However, the code examples haven't aged quite as...

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Serverless Integration Patterns on Google Cloud Functions

After examining which patterns are embedded in Google Cloud Pub/Sub in an earlier post, I implemented a few common patterns on top of Google Cloud Functions, Google's serverless implementation. It's...

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Loan Broker Implementation with AWS Step Functions

A lot has happened since we implemented the Loan Broker Example in EIP: we have the cloud, serverless computing, machine learning, service meshes and all sorts of other bells and whistles....

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Loan Broker @AWS, Part 2: Recipient List

In part 2 of this blog series I implement the Loan Broker Example using a Recipient List pattern, implemented in DynamoDB, Step Functions, and Lambda.

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Serverless Loan Broker @AWS, Part 3: Publish-Subscribe with SNS

Part 3 of the mini-series on implementing the EIP Loan Broker as a serverless solution with AWS Step Functions uses a Publish-Subscribe Channel and a stand-alone Aggregator to request and process loan...

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Serverless Loan Broker @ AWS, Part 4: Automation

Infrastructure as Code (IaC) has a whole new meaning for serverless applications. Rather than provision resources (the serverless frameworks do that for us), automation determines the system...

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Serverless Loan Broker @ AWS, Part 5: Integration Patterns with CDK

Infrastructure as Code (IaC) brings repeatability into the provisioning and deployment of cloud applications. However, the vocabulary used by most automation tools describes cloud platform resources as...

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Serverless Loan Broker @ GCP

Do serverless solutions lock you in? Let's find out by porting / rebuilding the Serverless Loan Broker on top of Google's Cloud Platform (GCP).

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