DAS Java Project : Apache Tuscany

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DAS Java

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RDB DAS
+XQuery DAS
+LDAP DAS

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DAS Projects

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This document provides information on DAS Java subproject of the Apache Tuscany incubator project.

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DAS Java Getting Started

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To get started with Java DAS, follow the downloads link and pick up either a binary or source distribution. If you are working from a source distribution, you can follow the general instructions for building the whole of the Tuscany java projects, or you can follow the intructions within the DAS Java overview to build and explore just DAS java.

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Build Environment Setup

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DAS is a subproject of the Tuscany Java project subtree. If you check out and build the whole Tuscany Java project, you will have also built the DAS subproject.
+[Note: Show how this can be done]

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Build DAS subproject

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Set up your environment using the instructions for building the whole of Tuscany, but only download and install Java 5, Maven and Svn

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Make sure 'mvn' and 'svn' commands are in your PATH environment variable.

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Check out the DAS open source projects from Apache.

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Commands:

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md <local tuscany dir>
+cd <local tuscany dir>
+svn co https://svn.apache.org/repos/asf/incubator/tuscany/java

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Run "mvn" under <local tuscany dir>/java directory to install POM files from the root project to the local repository

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cd <local tuscany dir>/java/das
+mvn

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If the mvn command completed successfully, you will see BUILD SUCCESSFUL in the output and tuscany-das-rdb-1.0-SNAPSHOP.jar is created under <local tuscany dir>/java/das/rdb/target directory.

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External resources are at times unavailable. It may be necessary to run "mvn" again at a later time
+Use of Firewall can cause time out. Set up the firewall to permit the action without prompting.

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Building Javadoc for DAS

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In order to build DAS Javadocs, you will need to build the a specific maven profile called "javadoc"

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cd <local tuscany dir>/java/das
+mvn -P javadoc

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Javadoc will become available at <local tuscany dir>/java/das/rdb/target/apidocs/index.html.

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Dependency Jars for DAS.RDB

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The DAS.RDB project has a dependency on SDO and requires the following SDO runtime jars to build

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sdo-api-r2.0.1-1.0-SNAPSHOT.jar - SDO 2.0 Interfaces
+tuscany-sdo-impl-1.0-SNAPSHOT.jar - SDO 2.0 implementation

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The SDO.IMPL project have dependencies on the following EMF (Eclipse Modeling Framework - www.eclipse.org/emf) runtime jars to build:

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common-2.2.1.jar - some common framework utility and base classes
+ecore-2.2.1.jar - the EMF core runtime implementation classes (the Ecore metamodel)
+ecore-change-2.2.1.jar - the EMF change recorder and framework
+ecore-xmi-2.2.1.jar - EMF's default XML (and XMI) serializer and loader
+xsd-2.2.1.jar - the XML Schema model
+log4j-1.2.12.jar - log4j logging framework

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Running DAS Samples

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DAS provide sample a CompanyWeb scenario where it exposes some of the DAS Features integrated in a J2EE webapp.
+Follow the steps below to be able to run the samples in a J2EE webserver (in our case Apache Tomcat)

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From the source repository

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checkout DAS Sample from SVN repository:
+md 'local tuscany dir'
+cd 'local tuscany dir'
+svn co https://svn.apache.org/repos/asf/incubator/tuscany/java/das das

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use maven to build the CompanyWeb war file:

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cd das\samples
+mvn

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use maven to deploy the CompanyWeb war file to Tomcat

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mvn tomcat:deploy

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There are also some sample applications that use a mix of SCA, SDO and DAS. See "Running the Samples" on the Java project page for details.
+[Note: Please check to make sure this is correct]

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From a DAS Sample distribution (starting with M2):

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Download a das-sample distribution from http://incubator.apache.org/tuscany/downloads.html

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Extract the companyweb war file and follow regular deployment procedures to deploy the war file

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Running Tuscany DAS Unit Tests

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DAS is currently providing two sets of unit tests

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JUnit tests for the core DAS code

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HTMLUnit tests integrated with Tomcat for DAS CompanyWeb sample application

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Please run unit tests as a good practice before submitting your contribution.

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Running DAS tests as part of the build

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-cd 'local tuscany dir'/java/das_
+mvn test

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-------------------------------------------------------
+T E S T S
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+Running org.apache.tuscany.das.rdb.test.suites.AllTestsDerby
+Setting up for Derby run
+Ending Derby run
+Tests run: 137, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 33.468 sec

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Results :

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Tests run: 137, Failures: 0, Errors: 0, Skipped: 0

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INFO ------------------------------------------------------------------------
+INFO BUILD SUCCESSFUL
+INFO ------------------------------------------------------------------------
+INFO Total time: 57 seconds
+INFO Finished at: Tue Oct 03 12:06:13 PDT 2006
+INFO Final Memory: 5M/10M
+INFO ------------------------------------------------------------------------

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Running DAS CompanyWeb tests in tomcat

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Download tomcat distribution into your local filesystem : http://tomcat.apache.org/

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Create a build.properties in your root directory (e.g. C:\Documents and Settings\lresende in Win2K systems) with the following contents

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tuscany.acceptance.tomcat.zipped='directory where tomcat was downloaded'
apache-tomcat-5.5.17-tuscany.zip

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checkout DAS Sample from SVN repository:

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md 'local tuscany dir'
+cd 'local tuscany dir'
+svn co https://svn.apache.org/repos/asf/incubator/tuscany/java/das das

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use maven run the DAS CompanyWeb tests in Tomcat:

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cd das/samples/testing/tomcat
+mvn

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-------------------------------------------------------
+T E S T S
+-------------------------------------------------------
+Running org.apache.tuscany.test.das.DasTestCase
+Running:HomePage SUCCESS!!!
+Running:AllCompanies SUCCESS!!!
+Running:AllCompaniesDepartments SUCCESS!!!
+Running:AddDepartmentToFirstCompany SUCCESS!!!
+Running:ChangeCompanyDepartmentNames SUCCESS!!!
+Running:DeleteCompanyOneDepartments SUCCESS!!!
+Tests run: 6, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 14.911 sec

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Results :

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Tests run: 6, Failures: 0, Errors: 0, Skipped: 0

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INFO
+INFO
+INFO ------------------------------------------------------------------------
+INFO Reactor Summary:
+INFO ------------------------------------------------------------------------
+INFO Tuscany Testing in Tomcat ............................. SUCCESS 0.251s
+INFO Tuscany Testing DAS Sample - Companyweb ............... SUCCESS [1:17.791s]
+INFO ------------------------------------------------------------------------
+INFO ------------------------------------------------------------------------
+INFO BUILD SUCCESSFUL
+INFO ------------------------------------------------------------------------
+INFO Total time: 1 minute 18 seconds
+INFO Finished at: Tue Oct 03 12:25:48 PDT 2006
+INFO Final Memory: 7M/15M
+INFO ------------------------------------------------------------------------

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Due to a current limitation, you must run mvn clean before you can run the tests a second time

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DAS RDB Code Structure

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Currently, the project's code base includes an implementation of a DAS RDB (relational database) and it is divided into three parts:

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1. das.rdb contains the DAS interfaces and the RDB (Relational Database) runtime implementation.

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2. samples.das provides sample applications based on DAS.

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3. distribution.das provides DAS binaries distribution with required dependencies.

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Please note that distribution.das-samples provides DAS samples distribution as a ready-to-deploy war file.

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Following diagram shows the high level class diagram for RDB DAS.
+[Note: Should the following be moved to architecture guide for RDB DAS\?]

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