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Reload resources before saving in ReloadAllEppResourcesAction

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This prevents a potential blind write scenario in which something else has concurrently modified the EppResource in between load and save, and those changes then get overwritten.

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=138911873
This commit is contained in:
mcilwain 2016-11-11 13:26:39 -08:00 • committed by Ben McIlwain
parent fab8ca8414
commit 7ed02f4612
1 changed files with 8 additions and 7 deletions
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15
java/google/registry/tools/server/ResaveAllEppResourcesAction.java
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@ -14,14 +14,15 @@
package google.registry.tools.server;
import static google.registry.mapreduce.inputs.EppResourceInputs.createEntityInput;
import static google.registry.model.ofy.ObjectifyService.ofy;
import static google.registry.util.PipelineUtils.createJobPath;
import com.google.appengine.tools.mapreduce.Mapper;
import com.google.common.collect.ImmutableList;
import com.googlecode.objectify.Key;
import com.googlecode.objectify.VoidWork;
import google.registry.mapreduce.MapreduceRunner;
import google.registry.mapreduce.inputs.EppResourceInputs;
import google.registry.model.EppResource;
import google.registry.request.Action;
import google.registry.request.Response;
@ -49,24 +50,24 @@ public class ResaveAllEppResourcesAction implements Runnable {
.setModuleName("tools")
.runMapOnly(
new ResaveAllEppResourcesActionMapper(),
ImmutableList.of(createEntityInput(EppResource.class)))));
ImmutableList.of(EppResourceInputs.createKeyInput(EppResource.class)))));
}
/** Mapper to re-save all EPP resources. */
public static class ResaveAllEppResourcesActionMapper extends Mapper<EppResource, Void, Void> {
public static class ResaveAllEppResourcesActionMapper
extends Mapper<Key<EppResource>, Void, Void> {
private static final long serialVersionUID = -7721628665138087001L;
public ResaveAllEppResourcesActionMapper() {}
@Override
public final void map(final EppResource resource) {
public final void map(final Key<EppResource> resourceKey) {
ofy().transact(new VoidWork() {
@Override
public void vrun() {
ofy().save().entity(resource).now();
ofy().save().entity(ofy().load().key(resourceKey).now()).now();
}});
getContext().incrementCounter(
String.format("%s entities re-saved", resource.getClass().getSimpleName()));
getContext().incrementCounter(String.format("%s entities re-saved", resourceKey.getKind()));
}
}
}