Fix NPE in registry_tool when creating or updating a TLD with a dns writer

I forgot to inject the CreateTldCommand/UpdateTldCommand commands, which now
need to be injected so that the list of available DnsWriter implementations is
instantiated. This CL also adds a new DI Set<String> with just the name of the
writer, so that the instantiated writer map (which may have many DI dependencies)
doesn't need to be pulled in.

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=130042215

java/google/registry/dns/writer/VoidDnsWriterModule.java

@@ -17,7 +17,9 @@ package google.registry.dns.writer;
 import dagger.Module;
 import dagger.Provides;
 import dagger.multibindings.IntoMap;
+import dagger.multibindings.IntoSet;
 import dagger.multibindings.StringKey;
+import javax.inject.Named;
 
 /** Dagger module that disables DNS updates. */
 @Module
@@ -26,7 +28,14 @@ public final class VoidDnsWriterModule {
   @Provides
   @IntoMap
   @StringKey(VoidDnsWriter.NAME)
-  static DnsWriter provideVoidDnsWriter(VoidDnsWriter writer) {
+  static DnsWriter provideWriter(VoidDnsWriter writer) {
     return writer;
   }
+
+  @Provides
+  @IntoSet
+  @Named("dnsWriterNames")
+  static String provideWriterName() {
+    return VoidDnsWriter.NAME;
+  }
 }

java/google/registry/dns/writer/clouddns/CloudDnsModule.java

@@ -23,10 +23,12 @@ import com.google.common.base.Function;
 import dagger.Module;
 import dagger.Provides;
 import dagger.multibindings.IntoMap;
+import dagger.multibindings.IntoSet;
 import dagger.multibindings.StringKey;
 import google.registry.config.ConfigModule.Config;
 import google.registry.dns.writer.DnsWriter;
 import java.util.Set;
+import javax.inject.Named;
 
 /** Dagger module for Google Cloud DNS service connection objects. */
 @Module
@@ -46,7 +48,14 @@ public final class CloudDnsModule {
   @Provides
   @IntoMap
   @StringKey(CloudDnsWriter.NAME)
-  static DnsWriter provideCloudDnsWriter(CloudDnsWriter writer) {
+  static DnsWriter provideWriter(CloudDnsWriter writer) {
     return writer;
   }
+
+  @Provides
+  @IntoSet
+  @Named("dnsWriterNames")
+  static String provideWriterName() {
+    return CloudDnsWriter.NAME;
+  }
 }

java/google/registry/dns/writer/dnsupdate/DnsUpdateWriterModule.java

@@ -17,8 +17,10 @@ package google.registry.dns.writer.dnsupdate;
 import dagger.Module;
 import dagger.Provides;
 import dagger.multibindings.IntoMap;
+import dagger.multibindings.IntoSet;
 import dagger.multibindings.StringKey;
 import google.registry.dns.writer.DnsWriter;
+import javax.inject.Named;
 import javax.net.SocketFactory;
 
 /** Dagger module that provides a DnsUpdateWriter. */
@@ -33,7 +35,14 @@ public abstract class DnsUpdateWriterModule {
   @Provides
   @IntoMap
   @StringKey(DnsUpdateWriter.NAME)
-  static DnsWriter provideDnsUpdateWriter(DnsUpdateWriter writer) {
+  static DnsWriter provideWriter(DnsUpdateWriter writer) {
     return writer;
   }
+
+  @Provides
+  @IntoSet
+  @Named("dnsWriterNames")
+  static String provideWriterName() {
+    return DnsUpdateWriter.NAME;
+  }
 }

java/google/registry/tools/BUILD

@@ -46,6 +46,8 @@ java_library(
         "//java/google/registry/bigquery",
         "//java/google/registry/config",
         "//java/google/registry/dns/writer",
+        "//java/google/registry/dns/writer/clouddns",
+        "//java/google/registry/dns/writer/dnsupdate",
         "//java/google/registry/export",
         "//java/google/registry/flows",
         "//java/google/registry/keyring/api",

java/google/registry/tools/CreateOrUpdateTldCommand.java

@@ -15,7 +15,6 @@
 package google.registry.tools;
 
 import static com.google.common.base.Preconditions.checkArgument;
-import static com.google.common.base.Preconditions.checkNotNull;
 import static google.registry.model.RoidSuffixes.isRoidSuffixUsed;
 import static google.registry.util.CollectionUtils.findDuplicates;
 import static google.registry.util.DomainNameUtils.canonicalizeDomainName;
@@ -27,7 +26,6 @@ import com.google.common.base.Optional;
 import com.google.common.collect.ImmutableList;
 import com.google.common.collect.ImmutableSet;
 import com.google.common.collect.ImmutableSortedMap;
-import google.registry.dns.writer.DnsWriter;
 import google.registry.model.pricing.StaticPremiumListPricingEngine;
 import google.registry.model.registry.Registries;
 import google.registry.model.registry.Registry;
@@ -43,6 +41,7 @@ import java.util.Map;
 import java.util.Set;
 import javax.annotation.Nullable;
 import javax.inject.Inject;
+import javax.inject.Named;
 import org.joda.money.Money;
 import org.joda.time.DateTime;
 import org.joda.time.Duration;
@@ -50,11 +49,11 @@ import org.joda.time.Duration;
 /** Shared base class for commands to create or update a TLD. */
 abstract class CreateOrUpdateTldCommand extends MutatingCommand {
 
-  @Inject Map<String, DnsWriter> dnsWriters;
+  @Inject
+  @Named("dnsWriterNames")
+  Set<String> dnsWriterNames;
 
-  @Parameter(
-      description = "Names of the TLDs",
-      required = true)
+  @Parameter(description = "Names of the TLDs", required = true)
   List<String> mainParameters;
 
   @Parameter(
@@ -384,8 +383,8 @@ abstract class CreateOrUpdateTldCommand extends MutatingCommand {
 
       if (dnsWriter != null) {
         if (dnsWriter.isPresent()) {
-          checkNotNull(
-              dnsWriters.get(dnsWriter.get()),
+          checkArgument(
+              dnsWriterNames.contains(dnsWriter.get()),
               "The DNS writer '%s' doesn't exist",
               dnsWriter.get());
           builder.setDnsWriter(dnsWriter.get());

java/google/registry/tools/RegistryToolComponent.java

@@ -16,6 +16,9 @@ package google.registry.tools;
 
 import dagger.Component;
 import google.registry.config.ConfigModule;
+import google.registry.dns.writer.VoidDnsWriterModule;
+import google.registry.dns.writer.clouddns.CloudDnsModule;
+import google.registry.dns.writer.dnsupdate.DnsUpdateWriterModule;
 import google.registry.keyring.api.KeyModule;
 import google.registry.keyring.api.VoidKeyringModule;
 import google.registry.request.Modules.DatastoreServiceModule;
@@ -33,16 +36,21 @@ import google.registry.util.SystemClock.SystemClockModule;
   modules = {
     ConfigModule.class,
     DatastoreServiceModule.class,
+    CloudDnsModule.class,
+    DnsUpdateWriterModule.class,
     Jackson2Module.class,
     KeyModule.class,
     RegistryToolModule.class,
     SystemClockModule.class,
     URLFetchServiceModule.class,
+    VoidDnsWriterModule.class,
     VoidKeyringModule.class,
-    })
+  }
+)
 interface RegistryToolComponent {
   void inject(CreateAnchorTenantCommand command);
   void inject(CreateContactCommand command);
+  void inject(CreateTldCommand command);
   void inject(EncryptEscrowDepositCommand command);
   void inject(GenerateApplicationsReportCommand command);
   void inject(GenerateDnsReportCommand command);
@@ -53,6 +61,7 @@ interface RegistryToolComponent {
   void inject(SendEscrowReportToIcannCommand command);
   void inject(SetupOteCommand command);
   void inject(UpdateCursorsCommand command);
+  void inject(UpdateTldCommand command);
   void inject(ValidateEscrowDepositCommand command);
   void inject(WhoisQueryCommand command);
 }