Examples with Database org.sirix.api.Database used on opensource projects

Example 11 with Database

use of org.sirix.api.Database in project sirix by sirixdb.

the class Databases method openDatabase.

/**
 * Open database. A database can be opened only once (even across JVMs). Afterwards a singleton
 * instance bound to the {@link File} is returned.
 *
 * @param file determines where the database is located sessionConf a
 *        {@link ResourceManagerConfiguration} object to set up the session
 * @return {@link Database} instance.
 * @throws SirixIOException if an I/O exception occurs
 * @throws SirixUsageException if Sirix is not used properly
 * @throws NullPointerException if {@code file} is {@code null}
 */
public static synchronized Database openDatabase(final Path file) throws SirixUsageException, SirixIOException {
    checkNotNull(file);
    if (!Files.exists(file)) {
        throw new SirixUsageException("DB could not be opened (since it was not created?) at location", file.toString());
    }
    final DatabaseConfiguration config = DatabaseConfiguration.deserialize(file);
    if (config == null) {
        throw new IllegalStateException("Configuration may not be null!");
    }
    final Database database = new DatabaseImpl(config);
    putDatabase(file, database);
    return database;
}

Example 12 with Database

use of org.sirix.api.Database in project sirix by sirixdb.

the class DBStore method create.

public TemporalCollection<?> create(final String collName, final Optional<String> optResName, final SubtreeParser parser) throws DocumentException {
    final DatabaseConfiguration dbConf = new DatabaseConfiguration(mLocation.resolve(collName));
    try {
        Databases.truncateDatabase(dbConf);
        Databases.createDatabase(dbConf);
        try (final Database database = Databases.openDatabase(dbConf.getFile())) {
            mDatabases.add(database);
            final String resName = optResName.isPresent() ? optResName.get() : new StringBuilder(3).append("resource").append(database.listResources().size() + 1).toString();
            database.createResource(ResourceConfiguration.newBuilder(resName, dbConf).useDeweyIDs(true).useTextCompression(true).buildPathSummary(true).storageType(mStorageType).build());
            final DBCollection collection = new DBCollection(collName, database);
            mCollections.put(database, collection);
            try (final ResourceManager resource = database.getResourceManager(new ResourceManagerConfiguration.Builder(resName).build());
                final XdmNodeWriteTrx wtx = resource.beginNodeWriteTrx()) {
                parser.parse(new SubtreeBuilder(collection, wtx, Insert.ASFIRSTCHILD, Collections.<SubtreeListener<? super AbstractTemporalNode<DBNode>>>emptyList()));
                wtx.commit();
            }
            return collection;
        }
    } catch (final SirixException e) {
        throw new DocumentException(e.getCause());
    }
}

Example 13 with Database

use of org.sirix.api.Database in project sirix by sirixdb.

the class DBStore method create.

@Override
public TemporalCollection<?> create(final String name) throws DocumentException {
    final DatabaseConfiguration dbConf = new DatabaseConfiguration(mLocation.resolve(name));
    try {
        if (Databases.createDatabase(dbConf)) {
            throw new DocumentException("Document with name %s exists!", name);
        }
        final Database database = Databases.openDatabase(dbConf.getFile());
        mDatabases.add(database);
        final DBCollection collection = new DBCollection(name, database);
        mCollections.put(database, collection);
        return collection;
    } catch (final SirixRuntimeException e) {
        throw new DocumentException(e.getCause());
    }
}

Example 14 with Database

use of org.sirix.api.Database in project sirix by sirixdb.

the class DBStore method lookup.

@Override
public TemporalCollection<?> lookup(final String name) throws DocumentException {
    final DatabaseConfiguration dbConf = new DatabaseConfiguration(mLocation.resolve(name));
    if (Databases.existsDatabase(dbConf)) {
        try {
            final Database database = Databases.openDatabase(dbConf.getFile());
            final Optional<Database> storedCollection = mDatabases.stream().findFirst().filter((Database db) -> db.equals(database));
            if (storedCollection.isPresent()) {
                return mCollections.get(storedCollection.get());
            }
            mDatabases.add(database);
            final DBCollection collection = new DBCollection(name, database);
            mCollections.put(database, collection);
            return collection;
        } catch (final SirixRuntimeException e) {
            throw new DocumentException(e.getCause());
        }
    }
    return null;
}

Example 15 with Database

use of org.sirix.api.Database in project sirix by sirixdb.

the class WorkerHelperTest method testClose.

/**
 * This method tests
 * {@link WorkerHelper#closeWTX(boolean, NodeWriteTrx, Session, Database)}
 */
@Test(expected = IllegalStateException.class)
public void testClose() throws SirixException {
    Database database = Databases.openDatabase(DBFILE.getParentFile());
    Session session = database.getSession(new SessionConfiguration.Builder(DBFILE.getName()).build());
    final NodeWriteTrx wtx = session.beginNodeWriteTrx();
    WorkerHelper.closeWTX(false, wtx, session, database);
    wtx.commit();
    database = Databases.openDatabase(DBFILE.getParentFile());
    session = database.getSession(new SessionConfiguration.Builder(DBFILE.getName()).build());
    final NodeReadTrx rtx = session.beginNodeReadTrx();
    WorkerHelper.closeRTX(rtx, session, database);
    rtx.moveTo(11);
}