Examples with FileSystemAbstraction org.neo4j.io.fs.FileSystemAbstraction used on opensource projects

Example 91 with FileSystemAbstraction

use of org.neo4j.io.fs.FileSystemAbstraction in project neo4j by neo4j.

the class PhysicalLogFileTest method shouldWriteSomeDataIntoTheLog.

@Test
public void shouldWriteSomeDataIntoTheLog() throws Exception {
    // GIVEN
    String name = "log";
    LifeSupport life = new LifeSupport();
    FileSystemAbstraction fs = fileSystemRule.get();
    PhysicalLogFiles logFiles = new PhysicalLogFiles(directory.directory(), name, fs);
    Monitor monitor = mock(Monitor.class);
    LogFile logFile = life.add(new PhysicalLogFile(fs, logFiles, 1000, transactionIdStore::getLastCommittedTransactionId, logVersionRepository, monitor, new LogHeaderCache(10)));
    // WHEN
    try {
        life.start();
        FlushablePositionAwareChannel writer = logFile.getWriter();
        LogPositionMarker positionMarker = new LogPositionMarker();
        writer.getCurrentPosition(positionMarker);
        int intValue = 45;
        long longValue = 4854587;
        writer.putInt(intValue);
        writer.putLong(longValue);
        writer.prepareForFlush().flush();
        // THEN
        try (ReadableClosableChannel reader = logFile.getReader(positionMarker.newPosition())) {
            assertEquals(intValue, reader.getInt());
            assertEquals(longValue, reader.getLong());
        }
    } finally {
        life.shutdown();
    }
}

Example 92 with FileSystemAbstraction

use of org.neo4j.io.fs.FileSystemAbstraction in project neo4j by neo4j.

the class PhysicalLogFileTest method shouldReadOlderLogs.

@Test
public void shouldReadOlderLogs() throws Exception {
    // GIVEN
    String name = "log";
    LifeSupport life = new LifeSupport();
    FileSystemAbstraction fs = fileSystemRule.get();
    PhysicalLogFiles logFiles = new PhysicalLogFiles(directory.directory(), name, fs);
    LogFile logFile = life.add(new PhysicalLogFile(fs, logFiles, 50, transactionIdStore::getLastCommittedTransactionId, logVersionRepository, mock(Monitor.class), new LogHeaderCache(10)));
    // WHEN
    life.start();
    try {
        FlushablePositionAwareChannel writer = logFile.getWriter();
        LogPositionMarker positionMarker = new LogPositionMarker();
        writer.getCurrentPosition(positionMarker);
        LogPosition position1 = positionMarker.newPosition();
        int intValue = 45;
        long longValue = 4854587;
        byte[] someBytes = someBytes(40);
        writer.putInt(intValue);
        writer.putLong(longValue);
        writer.put(someBytes, someBytes.length);
        writer.prepareForFlush().flush();
        writer.getCurrentPosition(positionMarker);
        LogPosition position2 = positionMarker.newPosition();
        long longValue2 = 123456789L;
        writer.putLong(longValue2);
        writer.put(someBytes, someBytes.length);
        writer.prepareForFlush().flush();
        // THEN
        try (ReadableClosableChannel reader = logFile.getReader(position1)) {
            assertEquals(intValue, reader.getInt());
            assertEquals(longValue, reader.getLong());
            assertArrayEquals(someBytes, readBytes(reader, 40));
        }
        try (ReadableClosableChannel reader = logFile.getReader(position2)) {
            assertEquals(longValue2, reader.getLong());
            assertArrayEquals(someBytes, readBytes(reader, 40));
        }
    } finally {
        life.shutdown();
    }
}

Example 93 with FileSystemAbstraction

use of org.neo4j.io.fs.FileSystemAbstraction in project neo4j by neo4j.

the class PhysicalLogFileTest method shouldVisitLogFile.

@Test
public void shouldVisitLogFile() throws Exception {
    // GIVEN
    String name = "log";
    LifeSupport life = new LifeSupport();
    FileSystemAbstraction fs = fileSystemRule.get();
    PhysicalLogFiles logFiles = new PhysicalLogFiles(directory.directory(), name, fs);
    LogFile logFile = life.add(new PhysicalLogFile(fs, logFiles, 50, transactionIdStore::getLastCommittedTransactionId, logVersionRepository, mock(Monitor.class), new LogHeaderCache(10)));
    life.start();
    FlushablePositionAwareChannel writer = logFile.getWriter();
    LogPositionMarker mark = new LogPositionMarker();
    writer.getCurrentPosition(mark);
    for (int i = 0; i < 5; i++) {
        writer.put((byte) i);
    }
    writer.prepareForFlush();
    // WHEN/THEN
    final AtomicBoolean called = new AtomicBoolean();
    logFile.accept((position, channel) -> {
        for (int i = 0; i < 5; i++) {
            assertEquals((byte) i, channel.get());
        }
        called.set(true);
        return true;
    }, mark.newPosition());
    assertTrue(called.get());
    life.shutdown();
}

Example 94 with FileSystemAbstraction

use of org.neo4j.io.fs.FileSystemAbstraction in project neo4j by neo4j.

the class ApplyRecoveredTransactionsTest method before.

@Before
public void before() {
    FileSystemAbstraction fs = fsr.get();
    File storeDir = new File("dir");
    StoreFactory storeFactory = new StoreFactory(storeDir, Config.empty(), new DefaultIdGeneratorFactory(fs), pageCacheRule.getPageCache(fs), fs, NullLogProvider.getInstance());
    neoStores = storeFactory.openAllNeoStores(true);
}

Example 95 with FileSystemAbstraction

use of org.neo4j.io.fs.FileSystemAbstraction in project neo4j by neo4j.

the class StoreLockerTest method shouldNotObtainLockWhenStoreAlreadyInUse.

@Test
public void shouldNotObtainLockWhenStoreAlreadyInUse() throws Exception {
    FileSystemAbstraction fileSystemAbstraction = new DelegatingFileSystemAbstraction(fileSystemRule.get()) {

        @Override
        public boolean fileExists(File fileName) {
            return false;
        }

        @Override
        public StoreChannel open(File fileName, String mode) throws IOException {
            return new DelegatingStoreChannel(super.open(fileName, mode)) {

                @Override
                public FileLock tryLock() throws IOException {
                    // 'null' implies that the file has been externally locked
                    return null;
                }
            };
        }
    };
    try (StoreLocker storeLocker = new StoreLocker(fileSystemAbstraction)) {
        storeLocker.checkLock(target.directory("unused"));
        fail();
    } catch (StoreLockException e) {
        assertThat(e.getMessage(), containsString("Store and its lock file has been locked by another process"));
    }
}