Application testing¶

Application installation¶

First configure your Sandbox to use Java 7:

sudo yum install -y java-1.7.0-openjdk

Select Java 7

sudo /usr/sbin/alternatives --config java

This will show on the terminal window:

There are 3 programs which provide 'java'.

  Selection    Command
-----------------------------------------------
 + 1           /usr/java/jdk1.6.0_35/jre/bin/java
   2           /usr/lib/jvm/jre-1.5.0-gcj/bin/java
*  3           /usr/lib/jvm/jre-1.7.0-openjdk.x86_64/bin/java

Enter to keep the current selection[+], or type selection number:

Select java 1.7 out of the menu options by typing the correct number (here it’s 3).

All the application resources are available on the GitHub repository: https://github.com/Terradue/dcs-beam-flh-java

To install the application clone the repository on the sandbox in your home folder:

cd ~
git clone https://github.com/Terradue/dcs-beam-flh-java.git
cd dcs-beam-flh-java

Update the Application descriptor file to use the Sandbox catalogue with the data you’ve copied:

vi src/main/app-resources/application.xml

And change the source from:

<sources>
  <source refid="cas:series">http://catalogue.terradue.int/catalogue/search/MER_RR__1P/description</source>
</sources>

To:

<sources>
  <source refid="cas:series">http://localhost/catalogue/sandbox/MER_RR__1P/description</source>
</sources>

Then build the BEAM FLH Java processor and the application resources with:

mvn install

The maven command will:

• Copy the application resources files from ~/dcs-beam-flh-java/src/main/app-resources to /application
• Retrieve from BEAM website all the Java artifacts required to run BEAM
• Compile the FLH Operator Java files and resources and place the compiled libraries in the correct location

Application check¶

The Application Descriptor file can be checked against the schema with:

ciop-appcheck

If the Application Descriptor is valid, the output is:

/application/application.xml validates

Installing the required packages¶

The application requires ESA BEAM Toolbox to compile and run.

All dependencies are listed in the pom.xml and downloaded during the mvn install execution.

Simulating the application execution¶

There are two approaches to test an application:

• The first manually invokes each of the nodes,
• The second triggers the automatic execution of the workflow.

Both approaches use the command line utility ciop-run [1].

ciop-run -n

node_flh

ciop-run node_flh

ciop-run