hostile-healthcheck.groovy

import org.apache.sling.hc.api.HealthCheck

//-------------------------------------
// Hostile Health Check
//-------------------------------------

// !!! Be careful, this creates a long-running health check blocking one 
//  thread of the HC thread pool. Unregister the hostile health check by
// creating a file "hc-unregister" in the current working dir (usually the
// dir next to crx-quickstart folder) and running the HC one more time

import org.apache.sling.hc.api.Result
import org.apache.sling.hc.util.FormattingResultLog

File currentWorkingDir = new File(System.getProperty('user.dir'))

dynamicHealthCheck = new HealthCheck() {
    def serviceRegistration
    def repository
    
    Result execute() {
        FormattingResultLog log = new FormattingResultLog()
        log.info("Groovy Health Check")
        for(int i=1; i<10;i++) {
            def hcSession = null
            try {
                hcSession = repository.login(new SimpleCredentials("admin", "admin".toCharArray()));
                hcSession.getNode("/").recurse { node ->
                    log.debug("node: "+node.getPath())
                }
            } finally {
                if(hcSession!=null) {
                    hcSession.logout()
                }
            }
        }


        def markerFile = new File(currentWorkingDir, "hc-unregister")
        if(markerFile.exists()) {
            markerFile.renameTo(new File(currentWorkingDir, "hc-unregister-done"))
            serviceRegistration.unregister()
        }    

        return new Result(log)
            
    }

}

resourceChangeListenerReg = bundleContext.registerService(
    "org.apache.sling.hc.api.HealthCheck", 
    dynamicHealthCheck, 
    new Hashtable([(HealthCheck.NAME): "Hostile Health Check", (HealthCheck.TAGS): ["groovy","dashboard"]]))

dynamicHealthCheck.serviceRegistration = resourceChangeListenerReg
dynamicHealthCheck.repository = session.getRepository()