opendev/gerrit
Code Issues Proposed changes

Lucene: Use stored ChangedLines values

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This saves a persistent cache lookup per query result, which is
roughly equivalent to one database lookup if the in-memory cache is
cold.

Change-Id: Ic2d82a9635e16b205b3cc90c2d860b821c628cf5
This commit is contained in:
Dave Borowitz 2014-05-23 10:50:44 -07:00
parent 8c4f39b197
commit 160584cf1b
2 changed files with 24 additions and 5 deletions
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25
gerrit-lucene/src/main/java/com/google/gerrit/lucene/LuceneChangeIndex.java
View File

@ -72,6 +72,7 @@ import org.apache.lucene.document.TextField;
import org.apache.lucene.index.IndexWriter;
import org.apache.lucene.index.IndexWriterConfig;
import org.apache.lucene.index.IndexWriterConfig.OpenMode;
import org.apache.lucene.index.IndexableField;
import org.apache.lucene.index.Term;
import org.apache.lucene.search.IndexSearcher;
import org.apache.lucene.search.Query;
@ -113,9 +114,14 @@ public class LuceneChangeIndex implements ChangeIndex {
public static final String CHANGES_OPEN = "open";
public static final String CHANGES_CLOSED = "closed";
private static final String ID_FIELD = ChangeField.LEGACY_ID.getName();
private static final String CHANGE_FIELD = ChangeField.CHANGE.getName();
private static final String ADDED_FIELD = ChangeField.ADDED.getName();
private static final String APPROVAL_FIELD = ChangeField.APPROVAL.getName();
private static final String CHANGE_FIELD = ChangeField.CHANGE.getName();
private static final String DELETED_FIELD = ChangeField.DELETED.getName();
private static final String ID_FIELD = ChangeField.LEGACY_ID.getName();
private static final ImmutableSet<String> FIELDS = ImmutableSet.of(
ADDED_FIELD, APPROVAL_FIELD, CHANGE_FIELD, DELETED_FIELD, ID_FIELD);
private static final Map<Schema<ChangeData>, Version> LUCENE_VERSIONS;
static {
@ -352,9 +358,6 @@ public class LuceneChangeIndex implements ChangeIndex {
setReady(sitePaths, schema.getVersion(), ready);
}
private static final ImmutableSet<String> FIELDS =
ImmutableSet.of(ID_FIELD, CHANGE_FIELD, APPROVAL_FIELD);
@SuppressWarnings("deprecation")
private static Sort getSort(Schema<ChangeData> schema,
Predicate<ChangeData> p) {
@ -464,10 +467,12 @@ public class LuceneChangeIndex implements ChangeIndex {
return changeDataFactory.create(db.get(), new Change.Id(id));
}
// Change proto.
Change change = ChangeProtoField.CODEC.decode(
cb.bytes, cb.offset, cb.length);
ChangeData cd = changeDataFactory.create(db.get(), change);
// Approvals.
BytesRef[] approvalsBytes = doc.getBinaryValues(APPROVAL_FIELD);
if (approvalsBytes != null) {
List<PatchSetApproval> approvals =
@ -478,6 +483,16 @@ public class LuceneChangeIndex implements ChangeIndex {
}
cd.setCurrentApprovals(approvals);
}
// Changed lines.
IndexableField added = doc.getField(ADDED_FIELD);
IndexableField deleted = doc.getField(DELETED_FIELD);
if (added != null && deleted != null) {
cd.setChangedLines(
added.numericValue().intValue(),
deleted.numericValue().intValue());
}
return cd;
}

4
gerrit-server/src/main/java/com/google/gerrit/server/query/change/ChangeData.java
View File

@ -342,6 +342,10 @@ public class ChangeData {
return changedLines;
}
public void setChangedLines(int insertions, int deletions) {
changedLines = new ChangedLines(insertions, deletions);
}
public Change.Id getId() {
return legacyId;
}