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Rename Engine#seacher() into Engine#acquireSearcher() 

The name should reflect that the caller is responsible for
releaseing the searcher again.
This commit is contained in:
Simon Willnauer 2013-09-19 16:30:14 +02:00
parent 9fe99aa6e9
commit de3cde3e1e
4 changed files with 29 additions and 22 deletions
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9
src/main/java/org/elasticsearch/index/engine/Engine.java
View File

@ -81,7 +81,14 @@ public interface Engine extends IndexShardComponent, CloseableComponent {
GetResult get(Get get) throws EngineException;
Searcher searcher() throws EngineException;
/**
* Retruns a new searcher instance. The consumer of this
* API is responsible for releasing the returned seacher in a
* safe manner, preferrablly in a try/finally block.
*
* @see Searcher#release()
*/
Searcher acquireSearcher() throws EngineException;
List<Segment> segments();

10
src/main/java/org/elasticsearch/index/engine/robin/RobinEngine.java
View File

@ -337,7 +337,7 @@ public class RobinEngine extends AbstractIndexShardComponent implements Engine {
}
// no version, get the version from the index, we know that we refresh on flush
Searcher searcher = searcher();
Searcher searcher = acquireSearcher();
final Versions.DocIdAndVersion docIdAndVersion;
try {
docIdAndVersion = Versions.loadDocIdAndVersion(searcher.reader(), get.uid());
@ -676,7 +676,7 @@ public class RobinEngine extends AbstractIndexShardComponent implements Engine {
}
@Override
public final Searcher searcher() throws EngineException {
public final Searcher acquireSearcher() throws EngineException {
SearcherManager manager = this.searcherManager;
try {
IndexSearcher searcher = manager.acquire();
@ -1128,7 +1128,7 @@ public class RobinEngine extends AbstractIndexShardComponent implements Engine {
Map<String, Segment> segments = new HashMap<String, Segment>();
// first, go over and compute the search ones...
Searcher searcher = searcher();
Searcher searcher = acquireSearcher();
try {
for (AtomicReaderContext reader : searcher.reader().leaves()) {
assert reader.reader() instanceof SegmentReader;
@ -1279,7 +1279,7 @@ public class RobinEngine extends AbstractIndexShardComponent implements Engine {
}
private long loadCurrentVersionFromIndex(Term uid) throws IOException {
Searcher searcher = searcher();
Searcher searcher = acquireSearcher();
try {
return Versions.loadVersion(searcher.reader(), uid);
} finally {
@ -1478,7 +1478,7 @@ public class RobinEngine extends AbstractIndexShardComponent implements Engine {
// fresh index writer, just do on all of it
newSearcher = searcher;
} else {
currentSearcher = searcher();
currentSearcher = acquireSearcher();
// figure out the newSearcher, with only the new readers that are relevant for us
List<IndexReader> readers = Lists.newArrayList();
for (AtomicReaderContext newReaderContext : searcher.getIndexReader().leaves()) {

2
src/main/java/org/elasticsearch/index/shard/service/InternalIndexShard.java
View File

@ -593,7 +593,7 @@ public class InternalIndexShard extends AbstractIndexShardComponent implements I
@Override
public Engine.Searcher acquireSearcher() {
readAllowed();
return engine.searcher();
return engine.acquireSearcher();
}
public void close(String reason) {

30
src/test/java/org/elasticsearch/index/engine/robin/RobinEngineTests.java
View File

@ -299,7 +299,7 @@ public class RobinEngineTests extends ElasticsearchTestCase {
@Test
public void testSimpleOperations() throws Exception {
Engine.Searcher searchResult = engine.searcher();
Engine.Searcher searchResult = engine.acquireSearcher();
MatcherAssert.assertThat(searchResult, EngineSearcherTotalHitsMatcher.engineSearcherTotalHits(0));
searchResult.release();
@ -310,7 +310,7 @@ public class RobinEngineTests extends ElasticsearchTestCase {
engine.create(new Engine.Create(null, newUid("1"), doc));
// its not there...
searchResult = engine.searcher();
searchResult = engine.acquireSearcher();
MatcherAssert.assertThat(searchResult, EngineSearcherTotalHitsMatcher.engineSearcherTotalHits(0));
MatcherAssert.assertThat(searchResult, EngineSearcherTotalHitsMatcher.engineSearcherTotalHits(new TermQuery(new Term("value", "test")), 0));
searchResult.release();
@ -330,7 +330,7 @@ public class RobinEngineTests extends ElasticsearchTestCase {
engine.refresh(new Engine.Refresh().force(false));
// now its there...
searchResult = engine.searcher();
searchResult = engine.acquireSearcher();
MatcherAssert.assertThat(searchResult, EngineSearcherTotalHitsMatcher.engineSearcherTotalHits(1));
MatcherAssert.assertThat(searchResult, EngineSearcherTotalHitsMatcher.engineSearcherTotalHits(new TermQuery(new Term("value", "test")), 1));
searchResult.release();
@ -349,7 +349,7 @@ public class RobinEngineTests extends ElasticsearchTestCase {
engine.index(new Engine.Index(null, newUid("1"), doc));
// its not updated yet...
searchResult = engine.searcher();
searchResult = engine.acquireSearcher();
MatcherAssert.assertThat(searchResult, EngineSearcherTotalHitsMatcher.engineSearcherTotalHits(1));
MatcherAssert.assertThat(searchResult, EngineSearcherTotalHitsMatcher.engineSearcherTotalHits(new TermQuery(new Term("value", "test")), 1));
MatcherAssert.assertThat(searchResult, EngineSearcherTotalHitsMatcher.engineSearcherTotalHits(new TermQuery(new Term("value", "test1")), 0));
@ -365,7 +365,7 @@ public class RobinEngineTests extends ElasticsearchTestCase {
// refresh and it should be updated
engine.refresh(new Engine.Refresh().force(false));
searchResult = engine.searcher();
searchResult = engine.acquireSearcher();
MatcherAssert.assertThat(searchResult, EngineSearcherTotalHitsMatcher.engineSearcherTotalHits(1));
MatcherAssert.assertThat(searchResult, EngineSearcherTotalHitsMatcher.engineSearcherTotalHits(new TermQuery(new Term("value", "test")), 0));
MatcherAssert.assertThat(searchResult, EngineSearcherTotalHitsMatcher.engineSearcherTotalHits(new TermQuery(new Term("value", "test1")), 1));
@ -375,7 +375,7 @@ public class RobinEngineTests extends ElasticsearchTestCase {
engine.delete(new Engine.Delete("test", "1", newUid("1")));
// its not deleted yet
searchResult = engine.searcher();
searchResult = engine.acquireSearcher();
MatcherAssert.assertThat(searchResult, EngineSearcherTotalHitsMatcher.engineSearcherTotalHits(1));
MatcherAssert.assertThat(searchResult, EngineSearcherTotalHitsMatcher.engineSearcherTotalHits(new TermQuery(new Term("value", "test")), 0));
MatcherAssert.assertThat(searchResult, EngineSearcherTotalHitsMatcher.engineSearcherTotalHits(new TermQuery(new Term("value", "test1")), 1));
@ -389,7 +389,7 @@ public class RobinEngineTests extends ElasticsearchTestCase {
// refresh and it should be deleted
engine.refresh(new Engine.Refresh().force(false));
searchResult = engine.searcher();
searchResult = engine.acquireSearcher();
MatcherAssert.assertThat(searchResult, EngineSearcherTotalHitsMatcher.engineSearcherTotalHits(0));
MatcherAssert.assertThat(searchResult, EngineSearcherTotalHitsMatcher.engineSearcherTotalHits(new TermQuery(new Term("value", "test")), 0));
MatcherAssert.assertThat(searchResult, EngineSearcherTotalHitsMatcher.engineSearcherTotalHits(new TermQuery(new Term("value", "test1")), 0));
@ -402,7 +402,7 @@ public class RobinEngineTests extends ElasticsearchTestCase {
engine.create(new Engine.Create(null, newUid("1"), doc));
// its not there...
searchResult = engine.searcher();
searchResult = engine.acquireSearcher();
MatcherAssert.assertThat(searchResult, EngineSearcherTotalHitsMatcher.engineSearcherTotalHits(0));
MatcherAssert.assertThat(searchResult, EngineSearcherTotalHitsMatcher.engineSearcherTotalHits(new TermQuery(new Term("value", "test")), 0));
MatcherAssert.assertThat(searchResult, EngineSearcherTotalHitsMatcher.engineSearcherTotalHits(new TermQuery(new Term("value", "test1")), 0));
@ -412,7 +412,7 @@ public class RobinEngineTests extends ElasticsearchTestCase {
engine.refresh(new Engine.Refresh().force(false));
// now its there...
searchResult = engine.searcher();
searchResult = engine.acquireSearcher();
MatcherAssert.assertThat(searchResult, EngineSearcherTotalHitsMatcher.engineSearcherTotalHits(1));
MatcherAssert.assertThat(searchResult, EngineSearcherTotalHitsMatcher.engineSearcherTotalHits(new TermQuery(new Term("value", "test")), 1));
MatcherAssert.assertThat(searchResult, EngineSearcherTotalHitsMatcher.engineSearcherTotalHits(new TermQuery(new Term("value", "test1")), 0));
@ -436,7 +436,7 @@ public class RobinEngineTests extends ElasticsearchTestCase {
engine.index(new Engine.Index(null, newUid("1"), doc));
// its not updated yet...
searchResult = engine.searcher();
searchResult = engine.acquireSearcher();
MatcherAssert.assertThat(searchResult, EngineSearcherTotalHitsMatcher.engineSearcherTotalHits(1));
MatcherAssert.assertThat(searchResult, EngineSearcherTotalHitsMatcher.engineSearcherTotalHits(new TermQuery(new Term("value", "test")), 1));
MatcherAssert.assertThat(searchResult, EngineSearcherTotalHitsMatcher.engineSearcherTotalHits(new TermQuery(new Term("value", "test1")), 0));
@ -445,7 +445,7 @@ public class RobinEngineTests extends ElasticsearchTestCase {
// refresh and it should be updated
engine.refresh(new Engine.Refresh().force(false));
searchResult = engine.searcher();
searchResult = engine.acquireSearcher();
MatcherAssert.assertThat(searchResult, EngineSearcherTotalHitsMatcher.engineSearcherTotalHits(1));
MatcherAssert.assertThat(searchResult, EngineSearcherTotalHitsMatcher.engineSearcherTotalHits(new TermQuery(new Term("value", "test")), 0));
MatcherAssert.assertThat(searchResult, EngineSearcherTotalHitsMatcher.engineSearcherTotalHits(new TermQuery(new Term("value", "test1")), 1));
@ -456,7 +456,7 @@ public class RobinEngineTests extends ElasticsearchTestCase {
@Test
public void testSearchResultRelease() throws Exception {
Engine.Searcher searchResult = engine.searcher();
Engine.Searcher searchResult = engine.acquireSearcher();
MatcherAssert.assertThat(searchResult, EngineSearcherTotalHitsMatcher.engineSearcherTotalHits(0));
searchResult.release();
@ -465,7 +465,7 @@ public class RobinEngineTests extends ElasticsearchTestCase {
engine.create(new Engine.Create(null, newUid("1"), doc));
// its not there...
searchResult = engine.searcher();
searchResult = engine.acquireSearcher();
MatcherAssert.assertThat(searchResult, EngineSearcherTotalHitsMatcher.engineSearcherTotalHits(0));
MatcherAssert.assertThat(searchResult, EngineSearcherTotalHitsMatcher.engineSearcherTotalHits(new TermQuery(new Term("value", "test")), 0));
searchResult.release();
@ -474,7 +474,7 @@ public class RobinEngineTests extends ElasticsearchTestCase {
engine.refresh(new Engine.Refresh().force(false));
// now its there...
searchResult = engine.searcher();
searchResult = engine.acquireSearcher();
MatcherAssert.assertThat(searchResult, EngineSearcherTotalHitsMatcher.engineSearcherTotalHits(1));
MatcherAssert.assertThat(searchResult, EngineSearcherTotalHitsMatcher.engineSearcherTotalHits(new TermQuery(new Term("value", "test")), 1));
// don't release the search result yet...
@ -482,7 +482,7 @@ public class RobinEngineTests extends ElasticsearchTestCase {
// delete, refresh and do a new search, it should not be there
engine.delete(new Engine.Delete("test", "1", newUid("1")));
engine.refresh(new Engine.Refresh().force(false));
Engine.Searcher updateSearchResult = engine.searcher();
Engine.Searcher updateSearchResult = engine.acquireSearcher();
MatcherAssert.assertThat(updateSearchResult, EngineSearcherTotalHitsMatcher.engineSearcherTotalHits(0));
updateSearchResult.release();