// case 3: tail segments, invariants hold, copy, invariants hold
public void testNoMergeAfterCopy() throws IOException {
// main directory
Directory dir = newDirectory();
// auxiliary directory
Directory aux = newDirectory();
setUpDirs(dir, aux);
IndexWriter writer =
newWriter(
dir,
newIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(random()))
.setOpenMode(OpenMode.APPEND)
.setMaxBufferedDocs(10)
.setMergePolicy(newLogMergePolicy(4)));
writer.addIndexes(
aux, new MockDirectoryWrapper(random(), new RAMDirectory(aux, newIOContext(random()))));
assertEquals(1060, writer.maxDoc());
assertEquals(1000, writer.getDocCount(0));
writer.close();
// make sure the index is correct
verifyNumDocs(dir, 1060);
dir.close();
aux.close();
}
// case 4: tail segments, invariants hold, copy, invariants not hold
public void testMergeAfterCopy() throws IOException {
// main directory
Directory dir = newDirectory();
// auxiliary directory
Directory aux = newDirectory();
setUpDirs(dir, aux, true);
IndexWriterConfig dontMergeConfig =
new IndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(random()))
.setMergePolicy(NoMergePolicy.COMPOUND_FILES);
@SuppressWarnings("resource")
IndexWriter writer = new IndexWriter(aux, dontMergeConfig);
for (int i = 0; i < 20; i++) {
writer.deleteDocuments(new Term("id", "" + i));
}
writer.close();
IndexReader reader = DirectoryReader.open(aux);
assertEquals(10, reader.numDocs());
reader.close();
writer =
newWriter(
dir,
newIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(random()))
.setOpenMode(OpenMode.APPEND)
.setMaxBufferedDocs(4)
.setMergePolicy(newLogMergePolicy(4)));
if (VERBOSE) {
System.out.println("\nTEST: now addIndexes");
}
writer.addIndexes(
aux, new MockDirectoryWrapper(random(), new RAMDirectory(aux, newIOContext(random()))));
assertEquals(1020, writer.maxDoc());
assertEquals(1000, writer.getDocCount(0));
writer.close();
dir.close();
aux.close();
}
// case 5: tail segments, invariants not hold
public void testMoreMerges() throws IOException {
// main directory
Directory dir = newDirectory();
// auxiliary directory
Directory aux = newDirectory();
Directory aux2 = newDirectory();
setUpDirs(dir, aux, true);
IndexWriter writer =
newWriter(
aux2,
newIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(random()))
.setOpenMode(OpenMode.CREATE)
.setMaxBufferedDocs(100)
.setMergePolicy(newLogMergePolicy(10)));
writer.addIndexes(aux);
assertEquals(30, writer.maxDoc());
assertEquals(3, writer.getSegmentCount());
writer.close();
IndexWriterConfig dontMergeConfig =
new IndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(random()))
.setMergePolicy(NoMergePolicy.COMPOUND_FILES);
writer = new IndexWriter(aux, dontMergeConfig);
for (int i = 0; i < 27; i++) {
writer.deleteDocuments(new Term("id", "" + i));
}
writer.close();
IndexReader reader = DirectoryReader.open(aux);
assertEquals(3, reader.numDocs());
reader.close();
dontMergeConfig =
new IndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(random()))
.setMergePolicy(NoMergePolicy.COMPOUND_FILES);
writer = new IndexWriter(aux2, dontMergeConfig);
for (int i = 0; i < 8; i++) {
writer.deleteDocuments(new Term("id", "" + i));
}
writer.close();
reader = DirectoryReader.open(aux2);
assertEquals(22, reader.numDocs());
reader.close();
writer =
newWriter(
dir,
newIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(random()))
.setOpenMode(OpenMode.APPEND)
.setMaxBufferedDocs(6)
.setMergePolicy(newLogMergePolicy(4)));
writer.addIndexes(aux, aux2);
assertEquals(1040, writer.maxDoc());
assertEquals(1000, writer.getDocCount(0));
writer.close();
dir.close();
aux.close();
aux2.close();
}
