root / branches / v2_0_0_prep / libraries / libFMap_data / src / org / gvsig / fmap / data / index / spatial / SpatialIndexFactory.java @ 23285
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| 1 | 22609 | jiyarza | /* gvSIG. Geographic Information System of the Valencian Government
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| 2 | *
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| 3 | * Copyright (C) 2007-2008 Infrastructures and Transports Department
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| 4 | * of the Valencian Government (CIT)
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| 5 | *
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| 6 | * This program is free software; you can redistribute it and/or
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| 7 | * modify it under the terms of the GNU General Public License
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| 8 | * as published by the Free Software Foundation; either version 2
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| 9 | * of the License, or (at your option) any later version.
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| 10 | *
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| 11 | * This program is distributed in the hope that it will be useful,
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| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 14 | * GNU General Public License for more details.
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| 15 | *
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| 16 | * You should have received a copy of the GNU General Public License
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| 17 | * along with this program; if not, write to the Free Software
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| 18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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| 19 | * MA 02110-1301, USA.
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| 20 | *
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| 21 | */
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| 22 | |||
| 23 | /*
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| 24 | * AUTHORS (In addition to CIT):
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| 25 | * 2008 {{Company}} {{Task}}
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| 26 | */
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| 27 | |||
| 28 | 23285 | jiyarza | package org.gvsig.fmap.data.index.spatial; |
| 29 | 22609 | jiyarza | |
| 30 | import org.apache.log4j.Logger; |
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| 31 | |||
| 32 | 23285 | jiyarza | import org.gvsig.fmap.data.index.IndexException; |
| 33 | import org.gvsig.tools.extensionPoint.ExtensionPoint; |
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| 34 | import org.gvsig.tools.extensionPoint.ExtensionPointsSingleton; |
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| 35 | 22609 | jiyarza | |
| 36 | 23023 | jiyarza | |
| 37 | /**
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| 38 | *
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| 39 | * @author jyarza
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| 40 | *
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| 41 | */
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| 42 | 22609 | jiyarza | public abstract class SpatialIndexFactory { |
| 43 | |||
| 44 | private static Logger logger = Logger.getLogger(SpatialIndexFactory.class); |
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| 45 | |||
| 46 | |||
| 47 | public interface Factories { |
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| 48 | public static final String GT2_QUADTREE = "QuadTreeGt2Factory"; |
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| 49 | public static final String JSI_RTREE = "RTreeJsiFactory"; |
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| 50 | public static final String JTS_QUADTREE = "QuadTreeJtsFactory"; |
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| 51 | public static final String SPATIALINDEX_RTREE = "RTreeSptLibFactory"; |
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| 52 | public static final String DEFAULT = GT2_QUADTREE; |
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| 53 | } |
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| 54 | |||
| 55 | |||
| 56 | public static final String EXTENSION_POINT_NAME = "SpatialIndexFactory"; |
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| 57 | private static ExtensionPoint ep = new ExtensionPoint(EXTENSION_POINT_NAME, "Spatial Index Factory"); |
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| 58 | |||
| 59 | static {
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| 60 | ExtensionPointsSingleton.getInstance().put(ep); |
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| 61 | logger.debug("factory static code executed");
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| 62 | } |
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| 63 | |||
| 64 | public static SpatialIndexFactory getFactory(String type) throws InstantiationException, IllegalAccessException { |
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| 65 | if (type == null) type = Factories.DEFAULT; |
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| 66 | return (SpatialIndexFactory) ep.create(type);
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| 67 | } |
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| 68 | |||
| 69 | protected static void registerFactory(String key, String description, Class value) { |
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| 70 | ep.put(key, description, value); |
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| 71 | logger.debug(key + " registered.");
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| 72 | } |
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| 73 | |||
| 74 | |||
| 75 | public SpatialIndex createSpatialIndex() throws IndexException { |
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| 76 | return createSpatialIndex(null); |
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| 77 | } |
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| 78 | |||
| 79 | public abstract SpatialIndex createSpatialIndex(SpatialIndexParameters params) throws IndexException; |
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| 80 | } |