container/src/main/java/com/streamsets/datacollector/creation/ConfigInjector.java
public void injectStage(Object stage, StageDefinition stageDef, StageConfiguration stageConf, Map<String, Object> constants, List<Issue> issues) {
    injectConfigsToObject(stage, new StageInjectorContext(stageDef, stageConf, constants, issues));
  }
public void injectStage(Object stage, StageDefinition stageDef, StageConfiguration stageConf, Map<String, Object> constants, List<Issue> issues) {
    injectConfigsToObject(stage, new StageInjectorContext(stageDef, stageConf, constants, issues));
  }
Inject config values to given Stage.

@param stage Stage instance
@param stageDef Definition for given stage
@param stageConf Actual configuration values
@param constants Pipeline constants (parameters)
@param issues List into which issues will be added