Compile Time Constant Injection - GoogleCloudPlatform/google-cloud-eclipse GitHub Wiki
We plug a few constants into code at compile-time. We do this to avoid hard-coding these values and hamper their public visibilty.
| Constant | Bundle | System Property |
|---|---|---|
| OAuth client ID | login | oauth.client.id |
| OAuth client secret | login | oauth.client.secret |
| Google Analytics Tracking ID | usagetracking | ga.tracking.id |
The Java classes that hold these constant values are auto-generated
from template Java source files, using the
templating-maven-plugin. The values are
populated from system properties in the auto-gen process. That is, for
example, mvn -Doauth.client.id=id1234 templating:filter-sources or
mvn -Doauth.client.id=id1234 package will result in injecting id1234
as an OAuth client ID.