TestIndexFileDeleterpublic class TestIndexFileDeleter extends TestCase
| Methods Summary |
|---|
| private void | addDoc(org.apache.lucene.index.IndexWriter writer, int id)
Document doc = new Document();
doc.add(new Field("content", "aaa", Field.Store.NO, Field.Index.TOKENIZED));
doc.add(new Field("id", Integer.toString(id), Field.Store.YES, Field.Index.UN_TOKENIZED));
writer.addDocument(doc);
| | private java.lang.String | asString(java.lang.String[] l)
String s = "";
for(int i=0;i<l.length;i++) {
if (i > 0) {
s += "\n ";
}
s += l[i];
}
return s;
| | public void | copyFile(org.apache.lucene.store.Directory dir, java.lang.String src, java.lang.String dest)
IndexInput in = dir.openInput(src);
IndexOutput out = dir.createOutput(dest);
byte[] b = new byte[1024];
long remainder = in.length();
while(remainder > 0) {
int len = (int) Math.min(b.length, remainder);
in.readBytes(b, 0, len);
out.writeBytes(b, len);
remainder -= len;
}
| | public void | testDeleteLeftoverFiles()
Directory dir = new RAMDirectory();
IndexWriter writer = new IndexWriter(dir, new WhitespaceAnalyzer(), true);
int i;
for(i=0;i<35;i++) {
addDoc(writer, i);
}
writer.setUseCompoundFile(false);
for(;i<45;i++) {
addDoc(writer, i);
}
writer.close();
// Delete one doc so we get a .del file:
IndexReader reader = IndexReader.open(dir);
Term searchTerm = new Term("id", "7");
int delCount = reader.deleteDocuments(searchTerm);
assertEquals("didn't delete the right number of documents", 1, delCount);
// Set one norm so we get a .s0 file:
reader.setNorm(21, "content", (float) 1.5);
reader.close();
// Now, artificially create an extra .del file & extra
// .s0 file:
String[] files = dir.list();
/*
for(int i=0;i<files.length;i++) {
System.out.println(i + ": " + files[i]);
}
*/
// The numbering of fields can vary depending on which
// JRE is in use. On some JREs we see content bound to
// field 0; on others, field 1. So, here we have to
// figure out which field number corresponds to
// "content", and then set our expected file names below
// accordingly:
CompoundFileReader cfsReader = new CompoundFileReader(dir, "_2.cfs");
FieldInfos fieldInfos = new FieldInfos(cfsReader, "_2.fnm");
int contentFieldIndex = -1;
for(i=0;i<fieldInfos.size();i++) {
FieldInfo fi = fieldInfos.fieldInfo(i);
if (fi.name.equals("content")) {
contentFieldIndex = i;
break;
}
}
cfsReader.close();
assertTrue("could not locate the 'content' field number in the _2.cfs segment", contentFieldIndex != -1);
String normSuffix = "s" + contentFieldIndex;
// Create a bogus separate norms file for a
// segment/field that actually has a separate norms file
// already:
copyFile(dir, "_2_1." + normSuffix, "_2_2." + normSuffix);
// Create a bogus separate norms file for a
// segment/field that actually has a separate norms file
// already, using the "not compound file" extension:
copyFile(dir, "_2_1." + normSuffix, "_2_2.f" + contentFieldIndex);
// Create a bogus separate norms file for a
// segment/field that does not have a separate norms
// file already:
copyFile(dir, "_2_1." + normSuffix, "_1_1." + normSuffix);
// Create a bogus separate norms file for a
// segment/field that does not have a separate norms
// file already using the "not compound file" extension:
copyFile(dir, "_2_1." + normSuffix, "_1_1.f" + contentFieldIndex);
// Create a bogus separate del file for a
// segment that already has a separate del file:
copyFile(dir, "_0_1.del", "_0_2.del");
// Create a bogus separate del file for a
// segment that does not yet have a separate del file:
copyFile(dir, "_0_1.del", "_1_1.del");
// Create a bogus separate del file for a
// non-existent segment:
copyFile(dir, "_0_1.del", "_188_1.del");
// Create a bogus segment file:
copyFile(dir, "_0.cfs", "_188.cfs");
// Create a bogus fnm file when the CFS already exists:
copyFile(dir, "_0.cfs", "_0.fnm");
// Create a deletable file:
copyFile(dir, "_0.cfs", "deletable");
// Create some old segments file:
copyFile(dir, "segments_a", "segments");
copyFile(dir, "segments_a", "segments_2");
// Create a bogus cfs file shadowing a non-cfs segment:
copyFile(dir, "_2.cfs", "_3.cfs");
String[] filesPre = dir.list();
// Open & close a writer: it should delete the above 4
// files and nothing more:
writer = new IndexWriter(dir, new WhitespaceAnalyzer(), false);
writer.close();
String[] files2 = dir.list();
dir.close();
Arrays.sort(files);
Arrays.sort(files2);
if (!Arrays.equals(files, files2)) {
fail("IndexFileDeleter failed to delete unreferenced extra files: should have deleted " + (filesPre.length-files.length) + " files but only deleted " + (filesPre.length - files2.length) + "; expected files:\n " + asString(files) + "\n actual files:\n " + asString(files2));
}
|
|
