google-nomulus/java/google/registry/dns/PublishDnsUpdatesAction.java
shikhman 1c5b4e16c6 Add metrics to PublishDnsUpdatesAction
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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=131190862
2016-08-26 09:43:30 -04:00

100 lines
4.1 KiB
Java

// Copyright 2016 The Domain Registry Authors. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package google.registry.dns;
import static google.registry.model.server.Lock.executeWithLocks;
import static google.registry.request.Action.Method.POST;
import static google.registry.util.CollectionUtils.nullToEmpty;
import com.google.common.net.InternetDomainName;
import google.registry.config.ConfigModule.Config;
import google.registry.dns.DnsMetrics.Status;
import google.registry.dns.writer.DnsWriter;
import google.registry.request.Action;
import google.registry.request.HttpException.ServiceUnavailableException;
import google.registry.request.Parameter;
import google.registry.request.RequestParameters;
import google.registry.util.DomainNameUtils;
import google.registry.util.FormattingLogger;
import java.util.Set;
import java.util.concurrent.Callable;
import javax.inject.Inject;
import org.joda.time.Duration;
/** Task that sends domain and host updates to the DNS server. */
@Action(path = PublishDnsUpdatesAction.PATH, method = POST, automaticallyPrintOk = true)
public final class PublishDnsUpdatesAction implements Runnable, Callable<Void> {
public static final String PATH = "/_dr/task/publishDnsUpdates";
public static final String DOMAINS_PARAM = "domains";
public static final String HOSTS_PARAM = "hosts";
private static final FormattingLogger logger = FormattingLogger.getLoggerForCallerClass();
@Inject DnsQueue dnsQueue;
@Inject DnsWriterProxy dnsWriterProxy;
@Inject DnsMetrics dnsMetrics;
@Inject @Config("dnsWriteLockTimeout") Duration timeout;
@Inject @Parameter(RequestParameters.PARAM_TLD) String tld;
@Inject @Parameter(DOMAINS_PARAM) Set<String> domains;
@Inject @Parameter(HOSTS_PARAM) Set<String> hosts;
@Inject PublishDnsUpdatesAction() {}
/** Runs the task. */
@Override
public void run() {
String lockName = String.format("DNS zone %s", tld);
// If executeWithLocks fails to get the lock, it does not throw an exception, simply returns
// false. We need to make sure to take note of this error; otherwise, a failed lock might result
// in the update task being dequeued and dropped. A message will already have been logged
// to indicate the problem.
if (!executeWithLocks(this, getClass(), tld, timeout, lockName)) {
throw new ServiceUnavailableException("Lock failure");
}
}
/** Runs the task, with the lock. */
@Override
public Void call() {
processBatch();
return null;
}
/** Steps through the domain and host refreshes contained in the parameters and processes them. */
private void processBatch() {
try (DnsWriter writer = dnsWriterProxy.getForTld(tld)) {
for (String domain : nullToEmpty(domains)) {
if (!DomainNameUtils.isUnder(
InternetDomainName.from(domain), InternetDomainName.from(tld))) {
dnsMetrics.incrementPublishDomainRequests(tld, Status.REJECTED);
logger.severefmt("%s: skipping domain %s not under tld", tld, domain);
} else {
dnsMetrics.incrementPublishDomainRequests(tld, Status.ACCEPTED);
writer.publishDomain(domain);
}
}
for (String host : nullToEmpty(hosts)) {
if (!DomainNameUtils.isUnder(
InternetDomainName.from(host), InternetDomainName.from(tld))) {
dnsMetrics.incrementPublishHostRequests(tld, Status.REJECTED);
logger.severefmt("%s: skipping host %s not under tld", tld, host);
} else {
dnsMetrics.incrementPublishHostRequests(tld, Status.ACCEPTED);
writer.publishHost(host);
}
}
}
}
}