Tutorial Open Source TestDriven Development Environment

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Tutorial Open Source Test-Driven
DevelopmentEnvironment

• Geoffrey Kneller CD, P.Eng, MBA
• Precision Geomatics Inc.

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Agenda

• Strategy and GIS Technology
• Looking for GIS work
• Applying Open Source GIS Concepts
• Project Planning
• Project Execution
• Customer Service
• The Future

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GIS Server Software

• Initial Server Software
• Imagery serving / WMS UMN MapServer
• Data storage PostgreSQL / PostGIS
• Web Server Apache
• Operating System Slackware Linux
• All packaged together in the HostGIS Linux
  distribution (http//www.hostgis.com)

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GIS Open Standards

• Open Standards
• Open Geospatial Consortium (OGC)
• Web Map Service raster maps
• Web Feature Service vector data
• Web Coverage Service coverage
• Geographic Markup Language
• Open Source software is usually the first / best
  implementation of open standards
• Proprietary software follows along

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GIS Web-Based User Interface

• Web-based user interface
• AJAX / Web 2.0
• Google Web Toolkit
• Write code in Java Compile to JavaScript
• Runs in web browser
• No ActiveX control / plug-in
• Wraps existing JavaScript Controls
• Cross-browser support
• OpenLayers
• Display a variety of sources, including WMS

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JUnit for Writing Tests

• GWT includes JUnit classes for writing automated
  tests
• GWT JUnitCreator command prepares the test
  structure

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GIS Development Environment

• GWT code can be written and compiled with any
  text editor
• But
• A modern Integrated Development Environment
  supports software engineering practices like
  test-driven development and has a high impact on
  productivity

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GIS Development Environment

• Eclipse is a Java-based IDE that runs
  cross-platform and has a number of desirable
  features
• Project Workspaces created through GWT
• Code Completion
• Integration with source control
• Running of JUnit tests
• Requires a Java Runtime Environment (JRE) to run

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Source Code Management

• Integrated source code management allows
  developers to work as a team on a project
• Management can track progress and churn of the
  source code
• Should be integrated in the IDE for maximum
  effect
• We use CVS open source, free, well-supported

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Issue Tracking

• Issue Tracking provides a way for users /
  customers to track the status of issues they find
  and their resolution
• BugZilla open source and free
• Provides a web-based interface for users to enter
  issues and generate reports very easy for them
  to access
• Integrates in the Eclipse IDE for developers
  through Mylyn plugin very easy for them to
  access
• Becomes the focus of status meetings and is a
  planning tool for setting priorities

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Automated Build / Deployment

• Automated Build build whatever has been checked
  into CVS
• Automated Deployment move the latest build and
  all associated dependencies into production
• Apache Ant an automated build tool for Java
• Apache Maven similar, uses a project model
• Both very command-line, use XML for configuration

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Continuous Integration

• A Continuous integration package is used to
  manage builds across projects and to report on
  the results of automated tests
• Hudson works with Maven for Java-based projects
• Runs JUnit tests
• Removes the command line from automated builds
• Provides a dashboard for project build and test
  results

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Continuous Integration Example
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Sources

• HostGIS http//www.hostgis.com
• Google Web Toolkit - http//code.google.com/webtoo
  lkit/
• OpenLayers - http//openlayers.org/
• Eclipse - http//www.eclipse.org/
• CVS - http//www.nongnu.org/cvs/
• BugZilla - http//www.bugzilla.org/
• Mylyn - http//www.eclipse.org/mylyn/
• Maven - http//maven.apache.org/
• Hudson - https//hudson.dev.java.net/

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For More Information

• For more information
• Geoffs GIS Blog http//geoffsgis.blogspot.com
• Precison Geomatics http//www.precisiongeo.ca