mirror of https://github.com/apache/lucene.git
LUCENE-2691: move NRT calls to IR, make package local on IW
git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1006280 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Grant Ingersoll
parent
85efafdfa2
commit
82614b3e85
|
|
@ -147,6 +147,9 @@ API Changes
|
|||
you also override this method on upgrade. (Robert Muir, Mike
|
||||
McCandless)
|
||||
|
||||
* LUCENE-2691: IndexWriter.getReader() has been made package local and is now exposed via open and reopen methods on
|
||||
IndexReader. The semantics of the call is the same as it was prior to the API change. (Grant Ingersoll, Mike McCandless)
|
||||
|
||||
New features
|
||||
|
||||
* LUCENE-2604: Added RegexpQuery support to QueryParser. Regular expressions
|
||||
|
|
|
|||
|
|
@ -59,7 +59,7 @@ public class NearRealtimeReaderTask extends PerfTask {
|
|||
}
|
||||
|
||||
long t = System.currentTimeMillis();
|
||||
IndexReader r = w.getReader();
|
||||
IndexReader r = IndexReader.open(w);
|
||||
runData.setIndexReader(r);
|
||||
// Transfer our reference to runData
|
||||
r.decRef();
|
||||
|
|
|
|||
|
|
@ -1301,7 +1301,7 @@ public class TestQPHelper extends LuceneTestCase {
|
|||
Document doc = new Document();
|
||||
doc.add(newField("field", "", Field.Store.NO, Field.Index.ANALYZED));
|
||||
w.addDocument(doc);
|
||||
IndexReader r = w.getReader();
|
||||
IndexReader r = IndexReader.open(w);
|
||||
IndexSearcher s = new IndexSearcher(r);
|
||||
|
||||
Query q = new StandardQueryParser(new CannedAnalyzer()).parse("\"a\"", "field");
|
||||
|
|
|
|||
|
|
@ -96,7 +96,7 @@ public class TestDistance extends LuceneTestCase {
|
|||
|
||||
public void testLatLongFilterOnDeletedDocs() throws Exception {
|
||||
writer.deleteDocuments(new Term("name", "Potomac"));
|
||||
IndexReader r = writer.getReader();
|
||||
IndexReader r = IndexReader.open(writer);
|
||||
LatLongDistanceFilter f = new LatLongDistanceFilter(new QueryWrapperFilter(new MatchAllDocsQuery()),
|
||||
lat, lng, 1.0, latField, lngField);
|
||||
|
||||
|
|
|
|||
|
|
@ -233,6 +233,27 @@ public abstract class IndexReader implements Cloneable,Closeable {
|
|||
return open(directory, null, null, readOnly, DEFAULT_TERMS_INDEX_DIVISOR, null);
|
||||
}
|
||||
|
||||
/**
|
||||
* Open a near real time IndexReader from the {@link org.apache.lucene.index.IndexWriter}.
|
||||
*
|
||||
*
|
||||
* @param writer The IndexWriter to open from
|
||||
* @return The new IndexReader
|
||||
* @throws CorruptIndexException
|
||||
* @throws IOException if there is a low-level IO error
|
||||
*
|
||||
* @see #reopen(IndexWriter)
|
||||
*
|
||||
* @lucene.experimental
|
||||
*/
|
||||
public static IndexReader open(final IndexWriter writer) throws CorruptIndexException, IOException {
|
||||
return writer.getReader();
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
/** Expert: returns an IndexReader reading the index in the given
|
||||
* {@link IndexCommit}. You should pass readOnly=true, since it
|
||||
* gives much better concurrent performance, unless you
|
||||
|
|
@ -482,6 +503,70 @@ public abstract class IndexReader implements Cloneable,Closeable {
|
|||
throw new UnsupportedOperationException("This reader does not support reopen(IndexCommit).");
|
||||
}
|
||||
|
||||
/**
|
||||
* Expert: returns a readonly reader, covering all
|
||||
* committed as well as un-committed changes to the index.
|
||||
* This provides "near real-time" searching, in that
|
||||
* changes made during an IndexWriter session can be
|
||||
* quickly made available for searching without closing
|
||||
* the writer nor calling {@link #commit}.
|
||||
*
|
||||
* <p>Note that this is functionally equivalent to calling
|
||||
* {#flush} (an internal IndexWriter operation) and then using {@link IndexReader#open} to
|
||||
* open a new reader. But the turnaround time of this
|
||||
* method should be faster since it avoids the potentially
|
||||
* costly {@link #commit}.</p>
|
||||
*
|
||||
* <p>You must close the {@link IndexReader} returned by
|
||||
* this method once you are done using it.</p>
|
||||
*
|
||||
* <p>It's <i>near</i> real-time because there is no hard
|
||||
* guarantee on how quickly you can get a new reader after
|
||||
* making changes with IndexWriter. You'll have to
|
||||
* experiment in your situation to determine if it's
|
||||
* fast enough. As this is a new and experimental
|
||||
* feature, please report back on your findings so we can
|
||||
* learn, improve and iterate.</p>
|
||||
*
|
||||
* <p>The resulting reader supports {@link
|
||||
* IndexReader#reopen}, but that call will simply forward
|
||||
* back to this method (though this may change in the
|
||||
* future).</p>
|
||||
*
|
||||
* <p>The very first time this method is called, this
|
||||
* writer instance will make every effort to pool the
|
||||
* readers that it opens for doing merges, applying
|
||||
* deletes, etc. This means additional resources (RAM,
|
||||
* file descriptors, CPU time) will be consumed.</p>
|
||||
*
|
||||
* <p>For lower latency on reopening a reader, you should
|
||||
* call {@link #setMergedSegmentWarmer} to
|
||||
* pre-warm a newly merged segment before it's committed
|
||||
* to the index. This is important for minimizing
|
||||
* index-to-search delay after a large merge. </p>
|
||||
*
|
||||
* <p>If an addIndexes* call is running in another thread,
|
||||
* then this reader will only search those segments from
|
||||
* the foreign index that have been successfully copied
|
||||
* over, so far</p>.
|
||||
*
|
||||
* <p><b>NOTE</b>: Once the writer is closed, any
|
||||
* outstanding readers may continue to be used. However,
|
||||
* if you attempt to reopen any of those readers, you'll
|
||||
* hit an {@link AlreadyClosedException}.</p>
|
||||
*
|
||||
* @lucene.experimental
|
||||
*
|
||||
* @return IndexReader that covers entire index plus all
|
||||
* changes made so far by this IndexWriter instance
|
||||
*
|
||||
* @throws IOException
|
||||
*/
|
||||
public IndexReader reopen(IndexWriter writer) throws CorruptIndexException, IOException {
|
||||
return writer.getReader();
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* Efficiently clones the IndexReader (sharing most
|
||||
* internal state).
|
||||
|
|
|
|||
|
|
@ -339,7 +339,7 @@ public class IndexWriter implements Closeable {
|
|||
* the writer nor calling {@link #commit}.
|
||||
*
|
||||
* <p>Note that this is functionally equivalent to calling
|
||||
* {#commit} and then using {@link IndexReader#open} to
|
||||
* {#flush} and then using {@link IndexReader#open} to
|
||||
* open a new reader. But the turnaround time of this
|
||||
* method should be faster since it avoids the potentially
|
||||
* costly {@link #commit}.</p>
|
||||
|
|
@ -389,24 +389,7 @@ public class IndexWriter implements Closeable {
|
|||
*
|
||||
* @throws IOException
|
||||
*/
|
||||
public IndexReader getReader() throws IOException {
|
||||
return getReader(config.getReaderTermsIndexDivisor());
|
||||
}
|
||||
|
||||
/** Expert: like {@link #getReader}, except you can
|
||||
* specify which termInfosIndexDivisor should be used for
|
||||
* any newly opened readers.
|
||||
* @param termInfosIndexDivisor Subsamples which indexed
|
||||
* terms are loaded into RAM. This has the same effect as {@link
|
||||
* IndexWriter#setTermIndexInterval} except that setting
|
||||
* must be done at indexing time while this setting can be
|
||||
* set per reader. When set to N, then one in every
|
||||
* N*termIndexInterval terms in the index is loaded into
|
||||
* memory. By setting this to a value > 1 you can reduce
|
||||
* memory usage, at the expense of higher latency when
|
||||
* loading a TermInfo. The default value is 1. Set this
|
||||
* to -1 to skip loading the terms index entirely. */
|
||||
public IndexReader getReader(int termInfosIndexDivisor) throws IOException {
|
||||
IndexReader getReader() throws IOException {
|
||||
|
||||
ensureOpen();
|
||||
|
||||
|
|
@ -426,12 +409,13 @@ public class IndexWriter implements Closeable {
|
|||
// just like we do when loading segments_N
|
||||
synchronized(this) {
|
||||
applyDeletes();
|
||||
final IndexReader r = new DirectoryReader(this, segmentInfos, termInfosIndexDivisor, codecs);
|
||||
final IndexReader r = new DirectoryReader(this, segmentInfos, config.getReaderTermsIndexDivisor(), codecs);
|
||||
if (infoStream != null) {
|
||||
message("return reader version=" + r.getVersion() + " reader=" + r);
|
||||
}
|
||||
return r;
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
/** Holds shared SegmentReader instances. IndexWriter uses
|
||||
|
|
|
|||
|
|
@ -634,7 +634,7 @@ public class TestExternalCodecs extends LuceneTestCase {
|
|||
}
|
||||
w.deleteDocuments(new Term("id", "77"));
|
||||
|
||||
IndexReader r = w.getReader();
|
||||
IndexReader r = IndexReader.open(w);
|
||||
IndexReader[] subs = r.getSequentialSubReaders();
|
||||
assertTrue(subs.length > 1);
|
||||
// test each segment
|
||||
|
|
@ -654,7 +654,7 @@ public class TestExternalCodecs extends LuceneTestCase {
|
|||
|
||||
w.deleteDocuments(new Term("id", "44"));
|
||||
w.optimize();
|
||||
r = w.getReader();
|
||||
r = IndexReader.open(w);
|
||||
assertEquals(NUM_DOCS-2, r.maxDoc());
|
||||
assertEquals(NUM_DOCS-2, r.numDocs());
|
||||
s = new IndexSearcher(r);
|
||||
|
|
|
|||
|
|
@ -73,6 +73,7 @@ import org.apache.lucene.store.MockDirectoryWrapper;
|
|||
import org.apache.lucene.store.RAMDirectory;
|
||||
import org.apache.lucene.store.SingleInstanceLockFactory;
|
||||
import org.apache.lucene.util.UnicodeUtil;
|
||||
import org.apache.lucene.util.Version;
|
||||
import org.apache.lucene.util._TestUtil;
|
||||
import org.apache.lucene.util.ThreadInterruptedException;
|
||||
import org.apache.lucene.util.BytesRef;
|
||||
|
|
@ -4825,17 +4826,20 @@ public class TestIndexWriter extends LuceneTestCase {
|
|||
|
||||
public void testIndexDivisor() throws Exception {
|
||||
Directory dir = newDirectory();
|
||||
IndexWriter w = new IndexWriter(dir, new MockAnalyzer(), IndexWriter.MaxFieldLength.UNLIMITED);
|
||||
IndexWriterConfig config = new IndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer());
|
||||
config.setTermIndexInterval(2);
|
||||
IndexWriter w = new IndexWriter(dir, config);
|
||||
StringBuilder s = new StringBuilder();
|
||||
// must be > 256
|
||||
for(int i=0;i<300;i++) {
|
||||
s.append(' ').append(""+i);
|
||||
s.append(' ').append(i);
|
||||
}
|
||||
Document d = new Document();
|
||||
Field f = newField("field", s.toString(), Field.Store.NO, Field.Index.ANALYZED);
|
||||
d.add(f);
|
||||
w.addDocument(d);
|
||||
IndexReader r = w.getReader(2).getSequentialSubReaders()[0];
|
||||
|
||||
IndexReader r = w.getReader().getSequentialSubReaders()[0];
|
||||
TermsEnum t = r.fields().terms("field").iterator();
|
||||
int count = 0;
|
||||
while(t.next() != null) {
|
||||
|
|
|
|||
|
|
@ -1151,7 +1151,7 @@ public class TestQueryParser extends LuceneTestCase {
|
|||
Document doc = new Document();
|
||||
doc.add(newField("f", "the wizard of ozzy", Field.Store.NO, Field.Index.ANALYZED));
|
||||
w.addDocument(doc);
|
||||
IndexReader r = w.getReader();
|
||||
IndexReader r = IndexReader.open(w);
|
||||
w.close();
|
||||
IndexSearcher s = new IndexSearcher(r);
|
||||
QueryParser qp = new QueryParser(TEST_VERSION_CURRENT, "f", a);
|
||||
|
|
|
|||
|
|
@ -41,7 +41,7 @@ public class TestCachingSpanFilter extends LuceneTestCase {
|
|||
// flipping a coin) may give us a newly opened reader,
|
||||
// but we use .reopen on this reader below and expect to
|
||||
// (must) get an NRT reader:
|
||||
IndexReader reader = writer.w.getReader();
|
||||
IndexReader reader = IndexReader.open(writer.w);
|
||||
IndexSearcher searcher = new IndexSearcher(reader);
|
||||
|
||||
// add a doc, refresh the reader, and check that its there
|
||||
|
|
|
|||
|
|
@ -159,7 +159,7 @@ public class TestCachingWrapperFilter extends LuceneTestCase {
|
|||
// flipping a coin) may give us a newly opened reader,
|
||||
// but we use .reopen on this reader below and expect to
|
||||
// (must) get an NRT reader:
|
||||
IndexReader reader = writer.w.getReader();
|
||||
IndexReader reader = IndexReader.open(writer.w);
|
||||
IndexSearcher searcher = new IndexSearcher(reader);
|
||||
|
||||
// add a doc, refresh the reader, and check that its there
|
||||
|
|
|
|||
|
|
@ -45,7 +45,7 @@ public class TestElevationComparator extends LuceneTestCase {
|
|||
writer.addDocument(adoc(new String[] {"id", "y", "title", "boosted boosted", "str_s","y"}));
|
||||
writer.addDocument(adoc(new String[] {"id", "z", "title", "boosted boosted boosted","str_s", "z"}));
|
||||
|
||||
IndexReader r = writer.getReader();
|
||||
IndexReader r = IndexReader.open(writer);
|
||||
writer.close();
|
||||
|
||||
IndexSearcher searcher = new IndexSearcher(r);
|
||||
|
|
|
|||
|
|
@ -203,7 +203,7 @@ public class TestFieldCache extends LuceneTestCase {
|
|||
public void testEmptyIndex() throws Exception {
|
||||
Directory dir = newDirectory();
|
||||
IndexWriter writer= new IndexWriter(dir, newIndexWriterConfig( TEST_VERSION_CURRENT, new MockAnalyzer()).setMaxBufferedDocs(500));
|
||||
IndexReader r = writer.getReader();
|
||||
IndexReader r = IndexReader.open(writer);
|
||||
FieldCache.DocTerms terms = FieldCache.DEFAULT.getTerms(r, "foobar");
|
||||
FieldCache.DocTermsIndex termsIndex = FieldCache.DEFAULT.getTermsIndex(r, "foobar");
|
||||
r.close();
|
||||
|
|
|
|||
|
|
@ -1160,7 +1160,7 @@ public class TestSort extends LuceneTestCase implements Serializable {
|
|||
doc.add(newField("t", "1", Field.Store.NO, Field.Index.NOT_ANALYZED));
|
||||
w.addDocument(doc);
|
||||
|
||||
IndexReader r = w.getReader();
|
||||
IndexReader r = IndexReader.open(w);
|
||||
w.close();
|
||||
IndexSearcher s = new IndexSearcher(r);
|
||||
TopDocs hits = s.search(new TermQuery(new Term("t", "1")), null, 10, new Sort(new SortField("f", SortField.STRING)));
|
||||
|
|
|
|||
|
|
@ -39,7 +39,7 @@ public class TestValueSource extends LuceneTestCase {
|
|||
w.commit();
|
||||
}
|
||||
|
||||
IndexReader r = w.getReader();
|
||||
IndexReader r = IndexReader.open(w);
|
||||
w.close();
|
||||
|
||||
assertTrue(r.getSequentialSubReaders().length > 1);
|
||||
|
|
|
|||
|
|
@ -126,7 +126,7 @@ public class PayloadHelper {
|
|||
doc.add(new Field(NO_PAYLOAD_FIELD, English.intToEnglish(i), Field.Store.YES, Field.Index.ANALYZED));
|
||||
writer.addDocument(doc);
|
||||
}
|
||||
reader = writer.getReader();
|
||||
reader = IndexReader.open(writer);
|
||||
writer.close();
|
||||
|
||||
IndexSearcher searcher = new IndexSearcher(SlowMultiReaderWrapper.wrap(reader));
|
||||
|
|
|
|||
|
|
@ -48,7 +48,7 @@ public class TestFileSwitchDirectory extends LuceneTestCase {
|
|||
((LogMergePolicy) writer.getConfig().getMergePolicy()).setUseCompoundFile(false);
|
||||
((LogMergePolicy) writer.getConfig().getMergePolicy()).setUseCompoundDocStore(false);
|
||||
TestIndexWriterReader.createIndexNoClose(true, "ram", writer);
|
||||
IndexReader reader = writer.getReader();
|
||||
IndexReader reader = IndexReader.open(writer);
|
||||
assertEquals(100, reader.maxDoc());
|
||||
writer.commit();
|
||||
// we should see only fdx,fdt files here
|
||||
|
|
|
|||
Loading…
Reference in New Issue