LexEVS CTS2 Service

A CTS2 Framework Service Plugin based on LexEVS.

Installation (Non-OSGi)

Clone the LexEVS Service Plugin: git clone https://github.com/cts2/lexevs-service.git

Set MAVEN_OPTS to insure there are no out of memory errors: export MAVEN_OPTS="-Xmx1000m -XX:MaxPermSize=500m"

Build the Plugin: mvn clean install

Create a $USER_HOME/.cts2/[context]/config directory. The context should be the name of your WAR file.

For example, if you install the Plugin into Tomcat as lexevs.war, the configuration directory for that service will be $USER_HOME/.cts2/lexevs/config.

Configuration Files

There are several configuration files used to customize the service. These will all be placed in the $USER_HOME/.cts2/[context]/config directory.

cts2-deployment.properties (Required)

Parameters:

• osgi.suppress - (true/false) Whether or not to suppress the the OSGi framework. Must be true.

Example - cts2-deployment.properties

osgi.suppress=true

lexevs.properties (Required)

Parameters:

• service.pid - The identifier of the LexEVS Service Plugin. Must be edu.mayo.cts2.framework.plugin.service.lexevs
• LG_CONFIG_FILE - The path to the LexEVS lbconfig.props file to use when running against a local LexEVS installation
• uriResolutionServiceUrl - The URL to the URI Resolution Service, must be https://informatics.mayo.edu/cts2/services/uriresolver/

Example - lexevs.properties

service.pid=edu.mayo.cts2.framework.plugin.service.lexevs
LG_CONFIG_FILE=/Applications/LexEVS/resources/config/lbconfig.props
uriResolutionServiceUrl=https://informatics.mayo.edu/cts2/services/uriresolver/

webapp-config.properties (Optional)

• service.pid - Must be edu.mayo.cts2.framework.webapp.rest.config
• allowHtmlRendering - (true/false) Allow an HTML rendering of content.
• showStackTrace - (true/false) Show the Java Stack Trace in the browser on Exception. This should be false, unless during development.
• showHomePage - (true/false) Show a Home/Welcome page at the root context ("/").
• allowSoap - (true/false) Turn on/off the SOAP API.
• supportEmail - The email address to direct unexpected user encountered errors.
• alternateHomePage - Home page URL to use instead of the standard framework home page.
• maxToReturn - Number of entries to return for each call. This includes, calls to entities, value sets, associations, etc. If not specified, the internal default is 50.

Example - webapp-config.properties

service.pid=edu.mayo.cts2.framework.webapp.rest.config
allowHtmlRendering=false
showStackTrace=false
showHomePage=false
allowSoap=false
[email protected]
alternateHomePage=http://alternateHomepage.com
maxToReturn=100

server-context.properties (Optional)

• service.pid - Must be ServerContext
• server.root - The base URL of the service as deployed (defaults to http://localhost/8080.

Example - server-context.properties

service.pid=ServerContext
server.root=http://myservice.org/lexevs

The resulting directory structure should resemble:

$USER_HOME
  |_ .cts2
       |_ [context]
              |_ config
                    |_ cts2-deployment.properties (required)
                    |_ lexevs.properties (required)
                    |_ webapp-config.properties (optional)
                    |_ server-context.properties (optional)

Install the resulting WAR file in target/ to the webapps/ directory of a Tomcat installation.

Normally Tomcat will need to be started with JVM options set for increased heap size and permgen size: CATALINA_OPTS="-Xmx2048m -XX:MaxPermSize=128m

You will find more details in the following links:

• LexEVS Home
• LexEVS Servers and API's
• Source Code

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