Examples with OIdentifiableStorage com.orientechnologies.orient.core.storage.OIdentifiableStorage used on opensource projects

Example 1 with OIdentifiableStorage

use of com.orientechnologies.orient.core.storage.OIdentifiableStorage in project orientdb by orientechnologies.

the class Orient method loadStorage.

public OStorage loadStorage(String iURL) {
    if (iURL == null || iURL.length() == 0)
        throw new IllegalArgumentException("URL missed");
    if (iURL.endsWith("/"))
        iURL = iURL.substring(0, iURL.length() - 1);
    // SEARCH FOR ENGINE
    int pos = iURL.indexOf(':');
    if (pos <= 0)
        throw new OConfigurationException("Error in database URL: the engine was not specified. Syntax is: " + URL_SYNTAX + ". URL was: " + iURL);
    final String engineName = iURL.substring(0, pos);
    engineLock.readLock().lock();
    try {
        final OEngine engine = engines.get(engineName.toLowerCase());
        if (engine == null)
            throw new OConfigurationException("Error on opening database: the engine '" + engineName + "' was not found. URL was: " + iURL + ". Registered engines are: " + engines.keySet());
        if (!engine.isRunning()) {
            final List<String> knownEngines = new ArrayList<String>(engines.keySet());
            if (!startEngine(engine))
                throw new OConfigurationException("Error on opening database: the engine '" + engineName + "' was unable to start. URL was: " + iURL + ". Registered engines was: " + knownEngines);
        }
        // SEARCH FOR DB-NAME
        iURL = iURL.substring(pos + 1);
        if (isWindowsOS()) {
            // WINDOWS ONLY: REMOVE DOUBLE SLASHES NOT AS PREFIX (WINDOWS PATH COULD NEED STARTING FOR "\\". EXAMPLE: "\\mydrive\db").
            // AT
            // THIS LEVEL BACKSLASHES ARRIVES AS SLASHES
            iURL = iURL.charAt(0) + iURL.substring(1).replace("//", "/");
        } else
            // REMOVE ANY //
            iURL = iURL.replace("//", "/");
        pos = iURL.indexOf('?');
        Map<String, String> parameters = null;
        String dbPath;
        if (pos > 0) {
            dbPath = iURL.substring(0, pos);
            iURL = iURL.substring(pos + 1);
            // PARSE PARAMETERS
            parameters = new HashMap<String, String>();
            String[] pairs = iURL.split("&");
            String[] kv;
            for (String pair : pairs) {
                kv = pair.split("=");
                if (kv.length < 2)
                    throw new OConfigurationException("Error on opening database: parameter has no value. Syntax is: " + URL_SYNTAX + ". URL was: " + iURL);
                parameters.put(kv[0], kv[1]);
            }
        } else
            dbPath = iURL;
        if (registerDatabaseByPath) {
            try {
                dbPath = new File(dbPath).getCanonicalPath();
            } catch (IOException e) {
            // IGNORE IT
            }
        }
        final String dbName = registerDatabaseByPath ? dbPath : engine.getNameFromPath(dbPath);
        OStorage storage;
        // SEARCH IF ALREADY USED
        storage = storages.get(dbName);
        if (storage == null) {
            do {
                storage = engine.createStorage(dbPath, parameters);
            } while ((storage instanceof OIdentifiableStorage) && storageIds.putIfAbsent(((OIdentifiableStorage) storage).getId(), Boolean.TRUE) != null);
            final OStorage oldStorage = storages.putIfAbsent(dbName, storage);
            if (oldStorage != null)
                storage = oldStorage;
            for (OOrientListener l : browseListeners()) l.onStorageRegistered(storage);
        }
        return storage;
    } finally {
        engineLock.readLock().unlock();
    }
}