Examples with EphemeralFileSystemAbstraction org.neo4j.graphdb.mockfs.EphemeralFileSystemAbstraction used on opensource projects

Example 16 with EphemeralFileSystemAbstraction

use of org.neo4j.graphdb.mockfs.EphemeralFileSystemAbstraction in project neo4j by neo4j.

the class NodeStoreTest method shouldTellNodeInUse.

@Test
public void shouldTellNodeInUse() throws Exception {
    // Given
    EphemeralFileSystemAbstraction fs = efs.get();
    NodeStore store = newNodeStore(fs);
    long exists = store.nextId();
    store.updateRecord(new NodeRecord(exists, false, 10, 20, true));
    long deleted = store.nextId();
    store.updateRecord(new NodeRecord(deleted, false, 10, 20, true));
    store.updateRecord(new NodeRecord(deleted, false, 10, 20, false));
    // When & then
    assertTrue(store.isInUse(exists));
    assertFalse(store.isInUse(deleted));
    assertFalse(store.isInUse(nodeStore.recordFormat.getMaxId()));
}

Example 17 with EphemeralFileSystemAbstraction

use of org.neo4j.graphdb.mockfs.EphemeralFileSystemAbstraction in project neo4j by neo4j.

the class LegacyBatchIndexApplierTest method newIndexConfigStore.

private IndexConfigStore newIndexConfigStore(Map<String, Integer> names, String providerName) {
    File dir = new File("conf");
    EphemeralFileSystemAbstraction fileSystem = fs.get();
    fileSystem.mkdirs(dir);
    IndexConfigStore store = life.add(new IndexConfigStore(dir, fileSystem));
    for (Map.Entry<String, Integer> name : names.entrySet()) {
        store.set(Node.class, name.getKey(), stringMap(IndexManager.PROVIDER, providerName));
        store.set(Relationship.class, name.getKey(), stringMap(IndexManager.PROVIDER, providerName));
    }
    return store;
}

Example 18 with EphemeralFileSystemAbstraction

use of org.neo4j.graphdb.mockfs.EphemeralFileSystemAbstraction in project neo4j by neo4j.

the class StateRecoveryManagerTest method shouldRecoverFromPartiallyWrittenEntriesInBothFiles.

@Test
public void shouldRecoverFromPartiallyWrittenEntriesInBothFiles() throws Exception {
    // given
    EphemeralFileSystemAbstraction fsa = fileSystemRule.get();
    fsa.mkdir(testDir.directory());
    StateRecoveryManager<Long> manager = new StateRecoveryManager<>(fsa, new LongMarshal());
    writeSomeLongsIn(fsa, fileA(), 3, 4);
    writeSomeLongsIn(fsa, fileB(), 5, 6);
    writeSomeGarbage(fsa, fileA());
    writeSomeGarbage(fsa, fileB());
    // when
    final StateRecoveryManager.RecoveryStatus recovered = manager.recover(fileA(), fileB());
    // then
    assertEquals(fileA(), recovered.activeFile());
    assertEquals(6L, recovered.recoveredState());
}

Example 19 with EphemeralFileSystemAbstraction

use of org.neo4j.graphdb.mockfs.EphemeralFileSystemAbstraction in project neo4j by neo4j.

the class StateRecoveryManagerTest method shouldReturnPreviouslyInactiveWhenOneFileFullAndOneEmpty.

@Test
public void shouldReturnPreviouslyInactiveWhenOneFileFullAndOneEmpty() throws Exception {
    // given
    EphemeralFileSystemAbstraction fsa = fileSystemRule.get();
    fsa.mkdir(testDir.directory());
    File fileA = fileA();
    StoreChannel channel = fsa.create(fileA);
    fillUpAndForce(channel);
    File fileB = fileB();
    fsa.create(fileB);
    StateRecoveryManager<Long> manager = new StateRecoveryManager<>(fsa, new LongMarshal());
    // when
    final StateRecoveryManager.RecoveryStatus recoveryStatus = manager.recover(fileA, fileB);
    // then
    assertEquals(fileB, recoveryStatus.activeFile());
}

Example 20 with EphemeralFileSystemAbstraction

use of org.neo4j.graphdb.mockfs.EphemeralFileSystemAbstraction in project neo4j by neo4j.

the class DurableStateStorageIT method shouldProperlyRecoveryAfterCloseOnActiveFileDuringRotation.

@Test
public void shouldProperlyRecoveryAfterCloseOnActiveFileDuringRotation() throws Exception {
    EphemeralFileSystemAbstraction normalFSA = fileSystemRule.get();
    AdversarialFileSystemAbstraction breakingFSA = new AdversarialFileSystemAbstraction(new MethodGuardedAdversary(new CountingAdversary(5, true), StoreChannel.class.getMethod("close")), normalFSA);
    SelectiveFileSystemAbstraction combinedFSA = new SelectiveFileSystemAbstraction(new File(new File(testDir.directory(), "long-state"), "long.a"), breakingFSA, normalFSA);
    long lastValue = 0;
    try (LongState persistedState = new LongState(combinedFSA, testDir.directory(), 14)) {
        while (// it will break from the Exception that AFS will throw
        true) {
            long tempValue = lastValue + 1;
            persistedState.setTheState(tempValue);
            lastValue = tempValue;
        }
    } catch (Exception expected) {
        // this stack trace should contain close()
        ensureStackTraceContainsExpectedMethod(expected.getStackTrace(), "close");
    }
    try (LongState restoredState = new LongState(normalFSA, testDir.directory(), 14)) {
        assertThat(restoredState.getTheState(), greaterThanOrEqualTo(lastValue));
    }
}