(random) Sanitize random search results with DOMAIN_AVAILABILITY_INFORMATION join

code/features-search/random-websites/java/nu/marginalia/browse/DbBrowseDomainsRandom.java

@@ -27,10 +27,12 @@ public class DbBrowseDomainsRandom {
     public List<BrowseResult> getRandomDomains(int count, DomainBlacklist blacklist, int set) {
 
         final String q = """
-                SELECT DOMAIN_ID, DOMAIN_NAME, INDEXED
+                SELECT EC_RANDOM_DOMAINS.DOMAIN_ID, DOMAIN_NAME, INDEXED
                 FROM EC_RANDOM_DOMAINS
                 INNER JOIN EC_DOMAIN ON EC_DOMAIN.ID=DOMAIN_ID
+                LEFT JOIN DOMAIN_AVAILABILITY_INFORMATION DAI ON DAI.DOMAIN_ID=EC_RANDOM_DOMAINS.DOMAIN_ID
                 WHERE STATE<2
+                AND SERVER_AVAILABLE
                 AND DOMAIN_SET=?
                 AND DOMAIN_ALIAS IS NULL
                 ORDER BY RAND()

code/processes/ping-process/java/nu/marginalia/ping/PingJobScheduler.java

@@ -7,6 +7,7 @@ import nu.marginalia.ping.svc.HttpPingService;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
+import javax.annotation.Nullable;
 import java.time.Duration;
 import java.time.Instant;
 import java.util.ArrayList;
@@ -194,8 +195,8 @@ public class PingJobScheduler {
                             yield dnsPingService.pingDomain(oldRecord.rootDomainName(), oldRecord);
                         }
                         case RootDomainReference.ByName(String name) -> {
-                            var oldRecord = pingDao.getDomainDnsRecord(name);
-                            yield dnsPingService.pingDomain(oldRecord.rootDomainName(), oldRecord);
+                            @Nullable var oldRecord = pingDao.getDomainDnsRecord(name);
+                            yield dnsPingService.pingDomain(name, oldRecord);
                         }
                     };