| /******************************************************************************* |
| * Copyright (C) 2007 The University of Manchester |
| * |
| * Modifications to the initial code base are copyright of their |
| * respective authors, or their employers as appropriate. |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Lesser General Public License |
| * as published by the Free Software Foundation; either version 2.1 of |
| * the License, or (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, but |
| * WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General Public |
| * License along with this program; if not, write to the Free Software |
| * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 |
| ******************************************************************************/ |
| package net.sf.taverna.t2.provenance; |
| |
| import net.sf.taverna.t2.provenance.connector.ProvenanceConnector; |
| import net.sf.taverna.t2.spi.SPIRegistry; |
| |
| /** |
| * Get all the instances of {@link ProvenanceConnector} that are available using |
| * this SPI Registry. Loads instances by looking at all files in |
| * META-INF/services/net.sf.taverna.t2.provenance.connector.ProvenanceConnector |
| * |
| * @author Ian Dunlop |
| * |
| */ |
| public class ProvenanceConnectorRegistry extends |
| SPIRegistry<ProvenanceConnector> { |
| |
| private static ProvenanceConnectorRegistry instance; |
| |
| protected ProvenanceConnectorRegistry() { |
| super(ProvenanceConnector.class); |
| } |
| |
| /** |
| * Get an instance of the registry that you can then get all the available |
| * {@link ProvenanceConnector} instances from |
| * |
| * @return |
| */ |
| public static synchronized ProvenanceConnectorRegistry getInstance() { |
| |
| if (instance == null) { |
| instance = new ProvenanceConnectorRegistry(); |
| } |
| return instance; |
| } |
| |
| } |