Examples with MutableMetaSnapshot com.torodb.core.transaction.metainf.MutableMetaSnapshot used on opensource projects

Example 1 with MutableMetaSnapshot

use of com.torodb.core.transaction.metainf.MutableMetaSnapshot in project torodb by torodb.

the class SqlWriteTorodTransaction method getOrCreateMetaDatabase.

@Nonnull
protected MutableMetaDatabase getOrCreateMetaDatabase(String dbName) {
    MutableMetaSnapshot metaSnapshot = getInternalTransaction().getMetaSnapshot();
    MutableMetaDatabase metaDb = metaSnapshot.getMetaDatabaseByName(dbName);
    if (metaDb == null) {
        metaDb = createMetaDatabase(dbName);
    }
    return metaDb;
}

Example 2 with MutableMetaSnapshot

use of com.torodb.core.transaction.metainf.MutableMetaSnapshot in project torodb by torodb.

the class SqlWriteTorodTransaction method getMetaDatabaseOrThrowException.

@Nonnull
protected MutableMetaDatabase getMetaDatabaseOrThrowException(@Nonnull String dbName) throws DatabaseNotFoundException {
    MutableMetaSnapshot metaSnapshot = getInternalTransaction().getMetaSnapshot();
    MutableMetaDatabase metaDb = metaSnapshot.getMetaDatabaseByName(dbName);
    if (metaDb == null) {
        throw new DatabaseNotFoundException(dbName);
    }
    return metaDb;
}

Example 3 with MutableMetaSnapshot

use of com.torodb.core.transaction.metainf.MutableMetaSnapshot in project torodb by torodb.

the class SqlWriteTorodTransaction method createMetaDatabase.

private MutableMetaDatabase createMetaDatabase(String dbName) {
    Preconditions.checkState(!isClosed());
    MutableMetaSnapshot metaSnapshot = getInternalTransaction().getMetaSnapshot();
    MutableMetaDatabase metaDb = metaSnapshot.addMetaDatabase(dbName, getConnection().getServer().getIdentifierFactory().toDatabaseIdentifier(metaSnapshot, dbName));
    getInternalTransaction().getBackendTransaction().addDatabase(metaDb);
    return metaDb;
}

Example 4 with MutableMetaSnapshot

use of com.torodb.core.transaction.metainf.MutableMetaSnapshot in project torodb by torodb.

the class SnapshotUpdaterImpl method updateSnapshot.

@Override
public void updateSnapshot(MetainfoRepository metainfoRepository) throws InvalidDatabaseException {
    MutableMetaSnapshot mutableSnapshot;
    try (SnapshotStage stage = metainfoRepository.startSnapshotStage()) {
        mutableSnapshot = stage.createMutableSnapshot();
    }
    if (mutableSnapshot.streamMetaDatabases().anyMatch((o) -> true)) {
        LOGGER.warn("Trying to update a not empty metainfo repository with information from " + "the database");
    }
    try (Connection connection = sqlInterface.getDbBackend().createSystemConnection()) {
        DSLContext dsl = sqlInterface.getDslContextFactory().createDslContext(connection);
        Updater updater = new Updater(dsl, tableRefFactory, sqlInterface);
        updater.loadMetaSnapshot(mutableSnapshot);
        connection.commit();
    } catch (SQLException sqlException) {
        throw sqlInterface.getErrorHandler().handleException(Context.UNKNOWN, sqlException);
    }
    try (MergerStage merge = metainfoRepository.startMerge(mutableSnapshot)) {
        merge.commit();
    }
}

Example 5 with MutableMetaSnapshot

use of com.torodb.core.transaction.metainf.MutableMetaSnapshot in project torodb by torodb.

the class SnapshotMergerForIndexTest method testNewIndexMultiField.

/**
   * Test a new index with multiple fields Case [1&1.OK1|1&2.OK1].2
   *
   * @throws Exception
   */
@Test
public void testNewIndexMultiField() throws Exception {
    MutableMetaSnapshot currentModifiedSnapshot = new WrapperMutableMetaSnapshot(currentSnapshot);
    ImmutableMetaSnapshot currentSnapshot = currentModifiedSnapshot.immutableCopy();
    MutableMetaSnapshot changedSnapshot = new WrapperMutableMetaSnapshot(currentSnapshot);
    changedSnapshot.getMetaDatabaseByName("dbName1").getMetaCollectionByName("colName1").addMetaIndex("idxName2", false).addMetaIndexField(tableRefFactory.createRoot(), "fieldName2", FieldIndexOrdering.ASC);
    changedSnapshot.getMetaDatabaseByName("dbName1").getMetaCollectionByName("colName1").getMetaIndexByName("idxName2").addMetaIndexField(tableRefFactory.createRoot(), "fieldName3", FieldIndexOrdering.ASC);
    changedSnapshot.getMetaDatabaseByName("dbName1").getMetaCollectionByName("colName1").getMetaIndexByName("idxName2").addMetaIndexField(tableRefFactory.createRoot(), "fieldName4", FieldIndexOrdering.ASC);
    changedSnapshot.getMetaDatabaseByName("dbName1").getMetaCollectionByName("colName1").getMetaIndexByName("idxName2").addMetaIndexField(tableRefFactory.createRoot(), "fieldName5", FieldIndexOrdering.ASC);
    new SnapshotMerger(currentSnapshot, changedSnapshot).merge();
}