Use Java 8 streams in RdeCounter

This also improves performance by calculating a set once rather than
on-demand every time it is used.

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=177471572
This commit is contained in:
mcilwain 2017-04-08 10:17:51 -04:00 committed by jianglai
parent 68768a561f
commit 087a500093

View file

@ -14,10 +14,8 @@
package google.registry.rde; package google.registry.rde;
import static com.google.common.base.Predicates.equalTo; import com.google.common.collect.ImmutableSet;
import static com.google.common.base.Predicates.not; import com.google.common.collect.Sets;
import static com.google.common.collect.Iterables.filter;
import google.registry.model.rde.RdeMode; import google.registry.model.rde.RdeMode;
import google.registry.xjc.rde.XjcRdeDepositTypeType; import google.registry.xjc.rde.XjcRdeDepositTypeType;
import google.registry.xjc.rdeheader.XjcRdeHeader; import google.registry.xjc.rdeheader.XjcRdeHeader;
@ -43,9 +41,7 @@ public final class RdeCounter {
@Inject @Inject
public RdeCounter() { public RdeCounter() {
for (RdeResourceType resourceType : getResourceTypesExcludingHeader()) { NON_HEADER_RDE_RESOURCE_TYPES.forEach(type -> counts.put(type, new AtomicLong()));
counts.put(resourceType, new AtomicLong());
}
} }
/** Increment the count on a given resource. */ /** Increment the count on a given resource. */
@ -57,11 +53,10 @@ public final class RdeCounter {
public XjcRdeHeader makeHeader(String tld, RdeMode mode) { public XjcRdeHeader makeHeader(String tld, RdeMode mode) {
XjcRdeHeader header = new XjcRdeHeader(); XjcRdeHeader header = new XjcRdeHeader();
header.setTld(tld); header.setTld(tld);
for (RdeResourceType resourceType : getResourceTypesExcludingHeader()) { NON_HEADER_RDE_RESOURCE_TYPES
if (resourceType.getModes().contains(mode)) { .stream()
header.getCounts().add(makeCount(resourceType.getUri(), counts.get(resourceType).get())); .filter(type -> type.getModes().contains(mode))
} .forEach(type -> header.getCounts().add(makeCount(type.getUri(), counts.get(type).get())));
}
return header; return header;
} }
@ -81,9 +76,9 @@ public final class RdeCounter {
return report; return report;
} }
private Iterable<RdeResourceType> getResourceTypesExcludingHeader() { private static final ImmutableSet<RdeResourceType> NON_HEADER_RDE_RESOURCE_TYPES =
return filter(EnumSet.allOf(RdeResourceType.class), not(equalTo(RdeResourceType.HEADER))); Sets.difference(EnumSet.allOf(RdeResourceType.class), ImmutableSet.of(RdeResourceType.HEADER))
} .immutableCopy();
private static XjcRdeHeaderCount makeCount(String uri, long count) { private static XjcRdeHeaderCount makeCount(String uri, long count) {
XjcRdeHeaderCount bean = new XjcRdeHeaderCount(); XjcRdeHeaderCount bean = new XjcRdeHeaderCount();