TestCompoundFilepublic class TestCompoundFile extends TestCase
| Fields Summary |
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| private Directory | dir |
| Methods Summary |
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| private void | assertEqualArrays(java.lang.String msg, byte[] expected, byte[] test, int start, int len)
assertNotNull(msg + " null expected", expected);
assertNotNull(msg + " null test", test);
for (int i=start; i<len; i++) {
assertEquals(msg + " " + i, expected[i], test[i]);
}
| | private void | assertSameSeekBehavior(java.lang.String msg, org.apache.lucene.store.IndexInput expected, org.apache.lucene.store.IndexInput actual)
// seek to 0
long point = 0;
assertSameStreams(msg + ", seek(0)", expected, actual, point);
// seek to middle
point = expected.length() / 2l;
assertSameStreams(msg + ", seek(mid)", expected, actual, point);
// seek to end - 2
point = expected.length() - 2;
assertSameStreams(msg + ", seek(end-2)", expected, actual, point);
// seek to end - 1
point = expected.length() - 1;
assertSameStreams(msg + ", seek(end-1)", expected, actual, point);
// seek to the end
point = expected.length();
assertSameStreams(msg + ", seek(end)", expected, actual, point);
// seek past end
point = expected.length() + 1;
assertSameStreams(msg + ", seek(end+1)", expected, actual, point);
| | private void | assertSameStreams(java.lang.String msg, org.apache.lucene.store.IndexInput expected, org.apache.lucene.store.IndexInput test)
assertNotNull(msg + " null expected", expected);
assertNotNull(msg + " null test", test);
assertEquals(msg + " length", expected.length(), test.length());
assertEquals(msg + " position", expected.getFilePointer(),
test.getFilePointer());
byte expectedBuffer[] = new byte[512];
byte testBuffer[] = new byte[expectedBuffer.length];
long remainder = expected.length() - expected.getFilePointer();
while(remainder > 0) {
int readLen = (int) Math.min(remainder, expectedBuffer.length);
expected.readBytes(expectedBuffer, 0, readLen);
test.readBytes(testBuffer, 0, readLen);
assertEqualArrays(msg + ", remainder " + remainder, expectedBuffer,
testBuffer, 0, readLen);
remainder -= readLen;
}
| | private void | assertSameStreams(java.lang.String msg, org.apache.lucene.store.IndexInput expected, org.apache.lucene.store.IndexInput actual, long seekTo)
if(seekTo >= 0 && seekTo < expected.length())
{
expected.seek(seekTo);
actual.seek(seekTo);
assertSameStreams(msg + ", seek(mid)", expected, actual);
}
| | private void | createRandomFile(org.apache.lucene.store.Directory dir, java.lang.String name, int size)Creates a file of the specified size with random data.
IndexOutput os = dir.createOutput(name);
for (int i=0; i<size; i++) {
byte b = (byte) (Math.random() * 256);
os.writeByte(b);
}
os.close();
| | private void | createSequenceFile(org.apache.lucene.store.Directory dir, java.lang.String name, byte start, int size)Creates a file of the specified size with sequential data. The first
byte is written as the start byte provided. All subsequent bytes are
computed as start + offset where offset is the number of the byte.
IndexOutput os = dir.createOutput(name);
for (int i=0; i < size; i++) {
os.writeByte(start);
start ++;
}
os.close();
| | private void | demo_FSIndexInputBug(org.apache.lucene.store.FSDirectory fsdir, java.lang.String file)
// Setup the test file - we need more than 1024 bytes
IndexOutput os = fsdir.createOutput(file);
for(int i=0; i<2000; i++) {
os.writeByte((byte) i);
}
os.close();
IndexInput in = fsdir.openInput(file);
// This read primes the buffer in IndexInput
byte b = in.readByte();
// Close the file
in.close();
// ERROR: this call should fail, but succeeds because the buffer
// is still filled
b = in.readByte();
// ERROR: this call should fail, but succeeds for some reason as well
in.seek(1099);
try {
// OK: this call correctly fails. We are now past the 1024 internal
// buffer, so an actual IO is attempted, which fails
b = in.readByte();
fail("expected readByte() to throw exception");
} catch (IOException e) {
// expected exception
}
| | static boolean | isCSIndexInput(org.apache.lucene.store.IndexInput is)
return is instanceof CompoundFileReader.CSIndexInput;
| | static boolean | isCSIndexInputOpen(org.apache.lucene.store.IndexInput is)
if (isCSIndexInput(is)) {
CompoundFileReader.CSIndexInput cis =
(CompoundFileReader.CSIndexInput) is;
return _TestHelper.isFSIndexInputOpen(cis.base);
} else {
return false;
}
| | public static void | main(java.lang.String[] args)Main for running test case by itself.
TestRunner.run (new TestSuite(TestCompoundFile.class));
// TestRunner.run (new TestCompoundFile("testSingleFile"));
// TestRunner.run (new TestCompoundFile("testTwoFiles"));
// TestRunner.run (new TestCompoundFile("testRandomFiles"));
// TestRunner.run (new TestCompoundFile("testClonedStreamsClosing"));
// TestRunner.run (new TestCompoundFile("testReadAfterClose"));
// TestRunner.run (new TestCompoundFile("testRandomAccess"));
// TestRunner.run (new TestCompoundFile("testRandomAccessClones"));
// TestRunner.run (new TestCompoundFile("testFileNotFound"));
// TestRunner.run (new TestCompoundFile("testReadPastEOF"));
// TestRunner.run (new TestCompoundFile("testIWCreate"));
| | public void | setUp()
//dir = new RAMDirectory();
dir = FSDirectory.getDirectory(new File(System.getProperty("tempDir"), "testIndex"), true);
| | private void | setUp_2()Setup a larger compound file with a number of components, each of
which is a sequential file (so that we can easily tell that we are
reading in the right byte). The methods sets up 20 files - f0 to f19,
the size of each file is 1000 bytes.
CompoundFileWriter cw = new CompoundFileWriter(dir, "f.comp");
for (int i=0; i<20; i++) {
createSequenceFile(dir, "f" + i, (byte) 0, 2000);
cw.addFile("f" + i);
}
cw.close();
| | public void | testClonedStreamsClosing()
setUp_2();
CompoundFileReader cr = new CompoundFileReader(dir, "f.comp");
// basic clone
IndexInput expected = dir.openInput("f11");
// this test only works for FSIndexInput
if (_TestHelper.isFSIndexInput(expected)) {
assertTrue(_TestHelper.isFSIndexInputOpen(expected));
IndexInput one = cr.openInput("f11");
assertTrue(isCSIndexInputOpen(one));
IndexInput two = (IndexInput) one.clone();
assertTrue(isCSIndexInputOpen(two));
assertSameStreams("basic clone one", expected, one);
expected.seek(0);
assertSameStreams("basic clone two", expected, two);
// Now close the first stream
one.close();
assertTrue("Only close when cr is closed", isCSIndexInputOpen(one));
// The following should really fail since we couldn't expect to
// access a file once close has been called on it (regardless of
// buffering and/or clone magic)
expected.seek(0);
two.seek(0);
assertSameStreams("basic clone two/2", expected, two);
// Now close the compound reader
cr.close();
assertFalse("Now closed one", isCSIndexInputOpen(one));
assertFalse("Now closed two", isCSIndexInputOpen(two));
// The following may also fail since the compound stream is closed
expected.seek(0);
two.seek(0);
//assertSameStreams("basic clone two/3", expected, two);
// Now close the second clone
two.close();
expected.seek(0);
two.seek(0);
//assertSameStreams("basic clone two/4", expected, two);
}
expected.close();
| | public void | testFileNotFound()
setUp_2();
CompoundFileReader cr = new CompoundFileReader(dir, "f.comp");
// Open two files
try {
IndexInput e1 = cr.openInput("bogus");
fail("File not found");
} catch (IOException e) {
/* success */
//System.out.println("SUCCESS: File Not Found: " + e);
}
cr.close();
| | public void | testLargeWrites()This test that writes larger than the size of the buffer output
will correctly increment the file pointer.
IndexOutput os = dir.createOutput("testBufferStart.txt");
byte[] largeBuf = new byte[2048];
for (int i=0; i<largeBuf.length; i++) {
largeBuf[i] = (byte) (Math.random() * 256);
}
long currentPos = os.getFilePointer();
os.writeBytes(largeBuf, largeBuf.length);
try {
assertEquals(currentPos + largeBuf.length, os.getFilePointer());
} finally {
os.close();
}
| | public void | testRandomAccess()This test opens two files from a compound stream and verifies that
their file positions are independent of each other.
setUp_2();
CompoundFileReader cr = new CompoundFileReader(dir, "f.comp");
// Open two files
IndexInput e1 = dir.openInput("f11");
IndexInput e2 = dir.openInput("f3");
IndexInput a1 = cr.openInput("f11");
IndexInput a2 = dir.openInput("f3");
// Seek the first pair
e1.seek(100);
a1.seek(100);
assertEquals(100, e1.getFilePointer());
assertEquals(100, a1.getFilePointer());
byte be1 = e1.readByte();
byte ba1 = a1.readByte();
assertEquals(be1, ba1);
// Now seek the second pair
e2.seek(1027);
a2.seek(1027);
assertEquals(1027, e2.getFilePointer());
assertEquals(1027, a2.getFilePointer());
byte be2 = e2.readByte();
byte ba2 = a2.readByte();
assertEquals(be2, ba2);
// Now make sure the first one didn't move
assertEquals(101, e1.getFilePointer());
assertEquals(101, a1.getFilePointer());
be1 = e1.readByte();
ba1 = a1.readByte();
assertEquals(be1, ba1);
// Now more the first one again, past the buffer length
e1.seek(1910);
a1.seek(1910);
assertEquals(1910, e1.getFilePointer());
assertEquals(1910, a1.getFilePointer());
be1 = e1.readByte();
ba1 = a1.readByte();
assertEquals(be1, ba1);
// Now make sure the second set didn't move
assertEquals(1028, e2.getFilePointer());
assertEquals(1028, a2.getFilePointer());
be2 = e2.readByte();
ba2 = a2.readByte();
assertEquals(be2, ba2);
// Move the second set back, again cross the buffer size
e2.seek(17);
a2.seek(17);
assertEquals(17, e2.getFilePointer());
assertEquals(17, a2.getFilePointer());
be2 = e2.readByte();
ba2 = a2.readByte();
assertEquals(be2, ba2);
// Finally, make sure the first set didn't move
// Now make sure the first one didn't move
assertEquals(1911, e1.getFilePointer());
assertEquals(1911, a1.getFilePointer());
be1 = e1.readByte();
ba1 = a1.readByte();
assertEquals(be1, ba1);
e1.close();
e2.close();
a1.close();
a2.close();
cr.close();
| | public void | testRandomAccessClones()This test opens two files from a compound stream and verifies that
their file positions are independent of each other.
setUp_2();
CompoundFileReader cr = new CompoundFileReader(dir, "f.comp");
// Open two files
IndexInput e1 = cr.openInput("f11");
IndexInput e2 = cr.openInput("f3");
IndexInput a1 = (IndexInput) e1.clone();
IndexInput a2 = (IndexInput) e2.clone();
// Seek the first pair
e1.seek(100);
a1.seek(100);
assertEquals(100, e1.getFilePointer());
assertEquals(100, a1.getFilePointer());
byte be1 = e1.readByte();
byte ba1 = a1.readByte();
assertEquals(be1, ba1);
// Now seek the second pair
e2.seek(1027);
a2.seek(1027);
assertEquals(1027, e2.getFilePointer());
assertEquals(1027, a2.getFilePointer());
byte be2 = e2.readByte();
byte ba2 = a2.readByte();
assertEquals(be2, ba2);
// Now make sure the first one didn't move
assertEquals(101, e1.getFilePointer());
assertEquals(101, a1.getFilePointer());
be1 = e1.readByte();
ba1 = a1.readByte();
assertEquals(be1, ba1);
// Now more the first one again, past the buffer length
e1.seek(1910);
a1.seek(1910);
assertEquals(1910, e1.getFilePointer());
assertEquals(1910, a1.getFilePointer());
be1 = e1.readByte();
ba1 = a1.readByte();
assertEquals(be1, ba1);
// Now make sure the second set didn't move
assertEquals(1028, e2.getFilePointer());
assertEquals(1028, a2.getFilePointer());
be2 = e2.readByte();
ba2 = a2.readByte();
assertEquals(be2, ba2);
// Move the second set back, again cross the buffer size
e2.seek(17);
a2.seek(17);
assertEquals(17, e2.getFilePointer());
assertEquals(17, a2.getFilePointer());
be2 = e2.readByte();
ba2 = a2.readByte();
assertEquals(be2, ba2);
// Finally, make sure the first set didn't move
// Now make sure the first one didn't move
assertEquals(1911, e1.getFilePointer());
assertEquals(1911, a1.getFilePointer());
be1 = e1.readByte();
ba1 = a1.readByte();
assertEquals(be1, ba1);
e1.close();
e2.close();
a1.close();
a2.close();
cr.close();
| | public void | testRandomFiles()This test creates a compound file based on a large number of files of
various length. The file content is generated randomly. The sizes range
from 0 to 1Mb. Some of the sizes are selected to test the buffering
logic in the file reading code. For this the chunk variable is set to
the length of the buffer used internally by the compound file logic.
// Setup the test segment
String segment = "test";
int chunk = 1024; // internal buffer size used by the stream
createRandomFile(dir, segment + ".zero", 0);
createRandomFile(dir, segment + ".one", 1);
createRandomFile(dir, segment + ".ten", 10);
createRandomFile(dir, segment + ".hundred", 100);
createRandomFile(dir, segment + ".big1", chunk);
createRandomFile(dir, segment + ".big2", chunk - 1);
createRandomFile(dir, segment + ".big3", chunk + 1);
createRandomFile(dir, segment + ".big4", 3 * chunk);
createRandomFile(dir, segment + ".big5", 3 * chunk - 1);
createRandomFile(dir, segment + ".big6", 3 * chunk + 1);
createRandomFile(dir, segment + ".big7", 1000 * chunk);
// Setup extraneous files
createRandomFile(dir, "onetwothree", 100);
createRandomFile(dir, segment + ".notIn", 50);
createRandomFile(dir, segment + ".notIn2", 51);
// Now test
CompoundFileWriter csw = new CompoundFileWriter(dir, "test.cfs");
final String data[] = new String[] {
".zero", ".one", ".ten", ".hundred", ".big1", ".big2", ".big3",
".big4", ".big5", ".big6", ".big7"
};
for (int i=0; i<data.length; i++) {
csw.addFile(segment + data[i]);
}
csw.close();
CompoundFileReader csr = new CompoundFileReader(dir, "test.cfs");
for (int i=0; i<data.length; i++) {
IndexInput check = dir.openInput(segment + data[i]);
IndexInput test = csr.openInput(segment + data[i]);
assertSameStreams(data[i], check, test);
assertSameSeekBehavior(data[i], check, test);
test.close();
check.close();
}
csr.close();
| | public void | testReadAfterClose()
demo_FSIndexInputBug((FSDirectory) dir, "test");
| | public void | testReadPastEOF()
setUp_2();
CompoundFileReader cr = new CompoundFileReader(dir, "f.comp");
IndexInput is = cr.openInput("f2");
is.seek(is.length() - 10);
byte b[] = new byte[100];
is.readBytes(b, 0, 10);
try {
byte test = is.readByte();
fail("Single byte read past end of file");
} catch (IOException e) {
/* success */
//System.out.println("SUCCESS: single byte read past end of file: " + e);
}
is.seek(is.length() - 10);
try {
is.readBytes(b, 0, 50);
fail("Block read past end of file");
} catch (IOException e) {
/* success */
//System.out.println("SUCCESS: block read past end of file: " + e);
}
is.close();
cr.close();
| | public void | testSingleFile()This test creates compound file based on a single file.
Files of different sizes are tested: 0, 1, 10, 100 bytes.
int data[] = new int[] { 0, 1, 10, 100 };
for (int i=0; i<data.length; i++) {
String name = "t" + data[i];
createSequenceFile(dir, name, (byte) 0, data[i]);
CompoundFileWriter csw = new CompoundFileWriter(dir, name + ".cfs");
csw.addFile(name);
csw.close();
CompoundFileReader csr = new CompoundFileReader(dir, name + ".cfs");
IndexInput expected = dir.openInput(name);
IndexInput actual = csr.openInput(name);
assertSameStreams(name, expected, actual);
assertSameSeekBehavior(name, expected, actual);
expected.close();
actual.close();
csr.close();
}
| | public void | testTwoFiles()This test creates compound file based on two files.
createSequenceFile(dir, "d1", (byte) 0, 15);
createSequenceFile(dir, "d2", (byte) 0, 114);
CompoundFileWriter csw = new CompoundFileWriter(dir, "d.csf");
csw.addFile("d1");
csw.addFile("d2");
csw.close();
CompoundFileReader csr = new CompoundFileReader(dir, "d.csf");
IndexInput expected = dir.openInput("d1");
IndexInput actual = csr.openInput("d1");
assertSameStreams("d1", expected, actual);
assertSameSeekBehavior("d1", expected, actual);
expected.close();
actual.close();
expected = dir.openInput("d2");
actual = csr.openInput("d2");
assertSameStreams("d2", expected, actual);
assertSameSeekBehavior("d2", expected, actual);
expected.close();
actual.close();
csr.close();
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