GeoWebCache distribution for geOrchestra

This is a geOrchestra specific re-packaging of GeoWebcache with customized extensions to

• Handle authentication through geOrchestra's authentication HTTP request headers
• Use a custom URL "mangler" for GWC to return URL's based on geOrchestra's public URL

Build

mvn clean install

Docker

make docker-build

Integration approach

Vanilla GWC gwc-web maven published artifact is actually a .war file packaged as .jar, containing all the web application libraries and resources, which turns it into a useless dependency as a jar.

In order not to include this jar that adds nothing but doubling the size of the re-packaged application, gwc-web is not referenced directly. Instead, we include the required gwc-* transitive dependencies from gwc-web directly in our pom.xml.

Spring configuration

Geowebcache loads its main configuration from WEB-INF/lib/geowebcache-servlet.xml, which in turn imports a bunch of other geowebcache-*.xml spring beans configuration files at the same location.

geowebcache-servlet.xml is configured in web.xml to be loaded by both DispatcherServlet and ContextLoaderListener, which results in double initialization of singleton beans.

For this reason, we instead make ContextLoaderListener load from applicationContext.xml, which in turn includes geowebcache-georchestra.xml, which allows to add new bean definitions as well as to override any previously defined bean by name; and let DispatcherServlet load from an empty geowebcache-servlet.xml.