Examples with DatabaseConfiguration org.sirix.access.conf.DatabaseConfiguration used on opensource projects

Example 6 with DatabaseConfiguration

use of org.sirix.access.conf.DatabaseConfiguration 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 7 with DatabaseConfiguration

use of org.sirix.access.conf.DatabaseConfiguration 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 8 with DatabaseConfiguration

use of org.sirix.access.conf.DatabaseConfiguration 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 9 with DatabaseConfiguration

use of org.sirix.access.conf.DatabaseConfiguration 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 10 with DatabaseConfiguration

use of org.sirix.access.conf.DatabaseConfiguration in project sirix by sirixdb.

the class WikipediaImportTest method testWikipediaImport.

@Test
public void testWikipediaImport() throws Exception {
    Databases.truncateDatabase(new DatabaseConfiguration(PATHS.PATH2.getFile()));
    // Create necessary element nodes.
    final String NSP_URI = "";
    final XMLEventFactory eventFactory = XMLEventFactory.newInstance();
    final StartElement timestamp = eventFactory.createStartElement(new QName(NSP_URI, "timestamp", XMLConstants.DEFAULT_NS_PREFIX), null, null);
    final StartElement page = eventFactory.createStartElement(new QName(NSP_URI, "page", XMLConstants.DEFAULT_NS_PREFIX), null, null);
    final StartElement rev = eventFactory.createStartElement(new QName(NSP_URI, "revision", XMLConstants.DEFAULT_NS_PREFIX), null, null);
    final StartElement id = eventFactory.createStartElement(new QName(NSP_URI, "id", XMLConstants.DEFAULT_NS_PREFIX), null, null);
    final StartElement text = eventFactory.createStartElement(new QName(NSP_URI, "text", XMLConstants.DEFAULT_NS_PREFIX), null, null);
    // Create list.
    final List<StartElement> list = new LinkedList<StartElement>();
    list.add(timestamp);
    list.add(page);
    list.add(rev);
    list.add(id);
    list.add(text);
    // Invoke import.
    new WikipediaImport(WIKIPEDIA, PATHS.PATH2.getFile()).importData(DateBy.HOURS, list);
    XMLSerializer.main(PATHS.PATH2.getFile().toAbsolutePath().toString(), PATHS.PATH3.getFile().toAbsolutePath().toString());
    final StringBuilder actual = TestHelper.readFile(PATHS.PATH3.getFile().toAbsolutePath(), false);
    final StringBuilder expected = TestHelper.readFile(EXPECTED, false);
    assertEquals("XML files match", expected.toString(), actual.toString());
}