Revision 23860
branches/v2_0_0_prep/libraries/libFMap_data/src/org/gvsig/fmap/data/index/AbstractDataIndexProvider.java | ||
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/* gvSIG. Geographic Information System of the Valencian Government |
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* |
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* Copyright (C) 2007-2008 Infrastructures and Transports Department |
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* of the Valencian Government (CIT) |
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* |
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* This program is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU General Public License |
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* as published by the Free Software Foundation; either version 2 |
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* of the License, or (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, |
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* MA 02110-1301, USA. |
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* |
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*/ |
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|
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/* |
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* AUTHORS (In addition to CIT): |
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* 2008 {{Company}} {{Task}} |
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*/ |
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package org.gvsig.fmap.data.index; |
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import org.apache.log4j.Logger; |
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import org.gvsig.fmap.data.feature.FeatureAttributeDescriptor; |
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import org.gvsig.tools.extensionPoint.ExtensionPoint; |
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import org.gvsig.tools.extensionPoint.ExtensionPointsSingleton; |
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/** |
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* Abstract factory for registering and retrieving available indexing engines. |
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* You can force the use of a specific implementation by passing its key, or you can use the default |
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* implementation for a given data type by specifying the {@link AttributeDescriptor} of the column |
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* to be indexed. |
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* |
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* @author jyarza |
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* |
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*/ |
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public abstract class AbstractDataIndexProvider { |
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private static Logger logger = Logger.getLogger(AbstractDataIndexProvider.class); |
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/** |
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* Convenience constants to identify sets of implemented factories classified by supported data types. |
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* Using these from a client is not permitted as implementations are optional and not visible. |
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*/ |
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public interface Factories { |
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public interface GEOMETRY { |
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public static final String GT2_QUADTREE = "QuadTreeGt2Factory"; |
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public static final String JSI_RTREE = "RTreeJsiFactory"; |
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public static final String JTS_QUADTREE = "QuadTreeJtsFactory"; |
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public static final String SPATIALINDEX_RTREE = "RTreeSptLibFactory"; |
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public static final String DEFAULT = GT2_QUADTREE; |
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} |
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public interface DATE { |
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// added as example |
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} |
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public interface INTEGER { |
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// added as example |
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} |
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} |
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// Register extension point, all available factory implementations will hang off here. |
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public static final String EXTENSION_POINT_NAME = "IndexFactory"; |
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private static ExtensionPoint ep = new ExtensionPoint(EXTENSION_POINT_NAME, "Index Factory"); |
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static { |
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ExtensionPointsSingleton.getInstance().put(ep); |
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} |
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/** |
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* Returns the default index factory registered for the given data type. |
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* @param col |
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* @return |
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* @throws InstantiationException |
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* @throws IllegalAccessException |
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*/ |
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public static AbstractDataIndexProvider getDefaultFactory(FeatureAttributeDescriptor col) throws InstantiationException, IllegalAccessException { |
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int type = col.getDataType(); |
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if (type == FeatureAttributeDescriptor.GEOMETRY) { |
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return getFactory(Factories.GEOMETRY.DEFAULT); |
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} else { |
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throw new UnsupportedOperationException(type + " indexes are not supported."); |
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} |
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} |
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/** |
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* Returns a specific index factory by key. |
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* The argument implType must be one of the constants defined in {@link AbstractDataIndexProvider.Factories} |
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* @param implType |
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* @return |
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* @throws InstantiationException |
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* @throws IllegalAccessException |
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*/ |
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public static AbstractDataIndexProvider getFactory(String key) throws InstantiationException, IllegalAccessException { |
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if (!ep.containsKey(key)) { |
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throw new IllegalArgumentException(key + " is not a valid factory."); |
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} |
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return (AbstractDataIndexProvider) ep.create(key); |
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} |
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/** |
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* Registers an index factory. |
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* @param key Name by which the factory will be identified |
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* @param description |
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* @param value |
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*/ |
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protected static void registerFactory(String key, String description, Class value) { |
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ep.put(key, description, value); |
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logger.debug(key + " registered."); |
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} |
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/** |
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* Creates and returns a new index using default parameters. |
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* @return |
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* @throws DataIndexException |
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*/ |
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public DataIndex createIndex() throws DataIndexException { |
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return createIndex(null); |
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} |
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/** |
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* Creates and returns a new index using the given parameters. |
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* @param params |
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* @return |
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* @throws DataIndexException |
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*/ |
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public abstract DataIndex createIndex(IndexParameters params) throws DataIndexException; |
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} |
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branches/v2_0_0_prep/libraries/libFMap_data/src/org/gvsig/fmap/data/index/DataIndexException.java | ||
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/* gvSIG. Geographic Information System of the Valencian Government |
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* |
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* Copyright (C) 2007-2008 Infrastructures and Transports Department |
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* of the Valencian Government (CIT) |
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* |
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* This program is free software; you can redistribute it and/or |
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* 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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* of the License, or (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* 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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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, |
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* MA 02110-1301, USA. |
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* |
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*/ |
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|
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/* |
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* AUTHORS (In addition to CIT): |
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* 2008 {{Company}} {{Task}} |
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*/ |
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package org.gvsig.fmap.data.index; |
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import java.util.HashMap; |
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import java.util.Map; |
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import org.gvsig.tools.exception.BaseException; |
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/** |
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* @author jiyarza |
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*/ |
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public class DataIndexException extends BaseException { |
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private static final long serialVersionUID = 932690269454242645L; |
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private static final String MESSAGE_KEY = "index_exception"; |
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private static final String FORMAT_STRING = |
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"Index Exception."; |
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/** |
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* Main constructor that provides a cause Exception |
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* @param e |
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*/ |
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public DataIndexException(Exception e) { |
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super(FORMAT_STRING, e, MESSAGE_KEY, serialVersionUID); |
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} |
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protected Map values() { |
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HashMap map = new HashMap(); |
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return map; |
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} |
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} |
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branches/v2_0_0_prep/libraries/libFMap_data/src/org/gvsig/fmap/data/index/DataIndex.java | ||
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/* 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 |
|
7 |
* modify it under the terms of the GNU General Public License |
|
8 |
* as published by the Free Software Foundation; either version 2 |
|
9 |
* of the License, or (at your option) any later version. |
|
10 |
* |
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11 |
* This program is distributed in the hope that it will be useful, |
|
12 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
|
13 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
|
14 |
* GNU General Public License for more details. |
|
15 |
* |
|
16 |
* You should have received a copy of the GNU General Public License |
|
17 |
* along with this program; if not, write to the Free Software |
|
18 |
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, |
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19 |
* MA 02110-1301, USA. |
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* |
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*/ |
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22 |
|
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/* |
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* AUTHORS (In addition to CIT): |
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* 2008 {{Company}} {{Task}} |
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*/ |
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package org.gvsig.fmap.data.index; |
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import java.util.List; |
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import org.gvsig.fmap.data.feature.Feature; |
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import org.gvsig.fmap.data.feature.FeatureAttributeDescriptor; |
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import org.gvsig.fmap.data.feature.FeatureCollection; |
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import org.gvsig.fmap.data.feature.FeatureID; |
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import org.gvsig.fmap.data.feature.FeatureStore; |
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import org.gvsig.fmap.data.feature.FeatureType; |
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/** |
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* Interface for any Index. |
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* @author jyarza |
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* |
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*/ |
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public interface DataIndex { |
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/** Column to which belongs this index */ |
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public FeatureAttributeDescriptor getFeatureAttributeDescriptor(); |
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/** FeatureType to which belongs this index */ |
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public FeatureType getFeatureType(); |
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/** FeatureStore to which belongs this index */ |
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public FeatureStore getFeatureStore(); |
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/** Index name */ |
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public String getName(); |
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/** Indicates if this index should overwrite itself on creation, if it exists already */ |
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public boolean isOverwrite(); |
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/** |
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* This is the most basic insertion method. |
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* Inserts an object into the index, with the specified id. |
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*/ |
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public void insert(Object o, FeatureID fid); |
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/** |
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* Inserts a Feature in the index. |
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* The Feature must contain a column that matches this index's column (name and data type) |
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* @param feat |
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*/ |
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public void insert(Feature feat); |
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/** |
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* Inserts a FeatureCollection into this index |
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* FeatureType is not checked so it will accept any FeatureType |
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* as long as exists a column with a valid name |
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*/ |
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public void insert(FeatureCollection data); |
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/** |
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* This is the most basic deletion method. |
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* Deletes an object from the index, given its id |
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**/ |
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public void delete(Object o, FeatureID fid); |
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/** |
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* Deletes a Feature in the index. |
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* The Feature must contain a column that matches this index's column (name and data type) |
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* @param feat |
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*/ |
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public void delete(Feature feat); |
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/** |
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* Deletes a FeatureCollection from this index |
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* FeatureType is not checked so it will accept any FeatureType |
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* as long as exists a column with a valid name |
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*/ |
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public void delete(FeatureCollection data) throws DataIndexException; |
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/** Performs a search in the index that meet the given parameters */ |
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public List query(QueryParameters params) throws DataIndexException; |
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} |
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branches/v2_0_0_prep/libraries/libFMap_data/src/org/gvsig/fmap/data/index/AbstractDataIndex.java | ||
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/* gvSIG. Geographic Information System of the Valencian Government |
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* |
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* Copyright (C) 2007-2008 Infrastructures and Transports Department |
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4 |
* of the Valencian Government (CIT) |
|
5 |
* |
|
6 |
* This program is free software; you can redistribute it and/or |
|
7 |
* modify it under the terms of the GNU General Public License |
|
8 |
* as published by the Free Software Foundation; either version 2 |
|
9 |
* of the License, or (at your option) any later version. |
|
10 |
* |
|
11 |
* This program is distributed in the hope that it will be useful, |
|
12 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
|
13 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
|
14 |
* GNU General Public License for more details. |
|
15 |
* |
|
16 |
* You should have received a copy of the GNU General Public License |
|
17 |
* along with this program; if not, write to the Free Software |
|
18 |
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, |
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19 |
* MA 02110-1301, USA. |
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* |
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*/ |
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|
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/* |
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* AUTHORS (In addition to CIT): |
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* 2008 {{Company}} {{Task}} |
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*/ |
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package org.gvsig.fmap.data.index; |
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import java.util.Iterator; |
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import java.util.List; |
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import org.gvsig.fmap.data.exceptions.DataException; |
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import org.gvsig.fmap.data.feature.Feature; |
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import org.gvsig.fmap.data.feature.FeatureAttributeDescriptor; |
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import org.gvsig.fmap.data.feature.FeatureCollection; |
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import org.gvsig.fmap.data.feature.FeatureStore; |
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import org.gvsig.fmap.data.feature.FeatureType; |
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public abstract class AbstractDataIndex implements DataIndex { |
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private final IndexParameters params; |
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public AbstractDataIndex(IndexParameters params) throws DataIndexException { |
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if (params == null) { |
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throw new IllegalArgumentException("params cannot be null."); |
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} |
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this.params = params; |
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} |
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public final FeatureAttributeDescriptor getFeatureAttributeDescriptor() { |
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return params.getFeatureAttributeDescriptor(); |
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} |
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public final FeatureStore getFeatureStore() { |
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return params.getFeatureStore(); |
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} |
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public final FeatureType getFeatureType() { |
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return params.getFeatureType(); |
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} |
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public final String getName() { |
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return params.getName(); |
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} |
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public final boolean isOverwrite() { |
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return params.isOverwrite(); |
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} |
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/** |
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* Fills this index with all the data in its FeatureStore |
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*/ |
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public final void fill() throws DataIndexException { |
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try { |
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insert(getFeatureStore().getFeatureCollection()); |
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} catch (DataException e) { |
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throw new DataIndexException(e); |
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} |
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} |
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public final void insert(FeatureCollection data) { |
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Iterator it = data.iterator(); |
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while (it.hasNext()) { |
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Feature feat = (Feature) it.next(); |
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insert(feat); |
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} |
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} |
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public void insert(Feature feat) { |
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try { |
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insert(feat.get(getFeatureAttributeDescriptor().getName()), feat.getID()); |
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} catch (NullPointerException e) { |
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throw new IllegalArgumentException("Feature does not contain a column with name " + getFeatureAttributeDescriptor().getName()); |
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} catch (ClassCastException e) { |
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throw new IllegalArgumentException("Column data type is not valid."); |
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} |
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} |
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public abstract List query(QueryParameters params) throws DataIndexException; |
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} |
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branches/v2_0_0_prep/libraries/libFMap_data/src/org/gvsig/fmap/data/index/DataIndexes.java | ||
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/* gvSIG. Geographic Information System of the Valencian Government |
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2 |
* |
|
3 |
* Copyright (C) 2007-2008 Infrastructures and Transports Department |
|
4 |
* of the Valencian Government (CIT) |
|
5 |
* |
|
6 |
* This program is free software; you can redistribute it and/or |
|
7 |
* modify it under the terms of the GNU General Public License |
|
8 |
* as published by the Free Software Foundation; either version 2 |
|
9 |
* of the License, or (at your option) any later version. |
|
10 |
* |
|
11 |
* This program is distributed in the hope that it will be useful, |
|
12 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
|
13 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
|
14 |
* GNU General Public License for more details. |
|
15 |
* |
|
16 |
* You should have received a copy of the GNU General Public License |
|
17 |
* along with this program; if not, write to the Free Software |
|
18 |
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, |
|
19 |
* MA 02110-1301, USA. |
|
20 |
* |
|
21 |
*/ |
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22 |
|
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23 |
/* |
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24 |
* AUTHORS (In addition to CIT): |
|
25 |
* 2008 {{Company}} {{Task}} |
|
26 |
*/ |
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27 |
|
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28 |
package org.gvsig.fmap.data.index; |
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|
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import java.util.HashMap; |
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31 |
import java.util.Iterator; |
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32 |
import java.util.Map; |
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33 |
|
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34 |
import org.gvsig.fmap.data.exceptions.DataException; |
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35 |
import org.gvsig.fmap.data.feature.FeatureStore; |
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36 |
import org.gvsig.fmap.data.feature.FeatureType; |
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/** |
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* Renombrar a Indexes-- |
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40 |
* |
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41 |
* |
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42 |
* API - Index |
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43 |
* AbstractIndex |
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44 |
* Impl ^ |
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45 |
* SPI - IndexProvider (initialize) |
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46 |
* AbstractIndexProvider |
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47 |
* |
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48 |
* Eliminar factorias (logica de create index pasa a initialize()) |
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49 |
* Eliminar abstractFactory (l?gica pasa a DataManager). |
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50 |
* |
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51 |
* |
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52 |
* // DATAMANAGER |
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53 |
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54 |
public List getIndexProviders(int dataType); (of names) |
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55 |
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56 |
public registerIndexProvider(IndexProvider); |
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57 |
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58 |
public IndexProvider createIndexProvider(store, ftype, att, [names]); |
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59 |
* |
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60 |
* public setDefaultIndexProvider(int dataType, String name); |
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61 |
* |
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62 |
* public File getTemporaryDirectory(); |
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63 |
* |
|
64 |
* INDEXES |
|
65 |
* ------- |
|
66 |
* |
|
67 |
* Lista plana por nombre. |
|
68 |
* Quitar IndexParameters |
|
69 |
* |
|
70 |
* |
|
71 |
* |
|
72 |
* This class provides access to a FeatureStore local indexes. |
|
73 |
* This class holds the correspondence (FeatureType, columName) -> Index |
|
74 |
* TODO there is not persistence and works only in memory |
|
75 |
* @author jyarza |
|
76 |
*/ |
|
77 |
public class DataIndexes { |
|
78 |
|
|
79 |
private Map featureTypes = new HashMap(); |
|
80 |
|
|
81 |
/** |
|
82 |
* Creates an empty IndexRegistry for the given FeatureStore |
|
83 |
* |
|
84 |
* @param store |
|
85 |
* FeatureStore to whom this IndexRegistry belongs |
|
86 |
* @throws DataException |
|
87 |
*/ |
|
88 |
public DataIndexes(FeatureStore store) throws DataException { |
|
89 |
Iterator it = store.getFeatureTypes().iterator(); |
|
90 |
while (it.hasNext()) { |
|
91 |
FeatureType type = (FeatureType) it.next(); |
|
92 |
featureTypes.put(type, new HashMap()); |
|
93 |
} |
|
94 |
} |
|
95 |
|
|
96 |
/** |
|
97 |
* Returns an Index given the FeatureType and the name of the column. |
|
98 |
* If the column has no index then this method returns <code>null</code>. |
|
99 |
* @param fType FeatureType to which belongs the index |
|
100 |
* @param colName name of the column |
|
101 |
* @return if the index exists then this method returns the index, otherwise it returns null. |
|
102 |
*/ |
|
103 |
public DataIndex getIndex(FeatureType fType, String colName) { |
|
104 |
Map indexes = (Map) featureTypes.get(fType); |
|
105 |
if (indexes != null) { |
|
106 |
return (DataIndex) (featureTypes.get(fType)); |
|
107 |
} |
|
108 |
return null; |
|
109 |
} |
|
110 |
|
|
111 |
/** |
|
112 |
* Adds an index to the registry, given its FeatureType and column name |
|
113 |
* @param fType |
|
114 |
* @param colName |
|
115 |
* @param index |
|
116 |
*/ |
|
117 |
public void addIndex(FeatureType fType, String colName, DataIndex index) { |
|
118 |
Map indexes = (Map) featureTypes.get(fType); |
|
119 |
if (indexes == null) { |
|
120 |
// A new feature type has been added to the FeatureStore since this IndexStore was created |
|
121 |
indexes = new HashMap(); |
|
122 |
featureTypes.put(fType, indexes); |
|
123 |
} |
|
124 |
indexes.put(colName, index); |
|
125 |
} |
|
126 |
|
|
127 |
/** |
|
128 |
* Returns true if this registry contains an index for the given FeatureType and column name, otherwise |
|
129 |
* it returns false. |
|
130 |
* @param fType |
|
131 |
* @param colName |
|
132 |
* @return <code>true</code> if the index exists, <code>false</code> if it does not. |
|
133 |
*/ |
|
134 |
public boolean contains(FeatureType fType, String colName) { |
|
135 |
Map map = (Map) featureTypes.get(fType); |
|
136 |
return map == null ? false : map.containsKey(colName); |
|
137 |
} |
|
138 |
} |
branches/v2_0_0_prep/libraries/libFMap_data/src/org/gvsig/fmap/data/index/QueryParameters.java | ||
---|---|---|
28 | 28 |
|
29 | 29 |
package org.gvsig.fmap.data.index; |
30 | 30 |
|
31 |
|
|
31 |
/** |
|
32 |
* Parameters for index querying. |
|
33 |
* |
|
34 |
* Typically will hold a range, for example: |
|
35 |
* |
|
36 |
* - If the index is of type geometry (spatial) it will hold an envelope |
|
37 |
* - If the index is of type integer it will hold an interval [min, max] |
|
38 |
* @author jyarza |
|
39 |
* |
|
40 |
*/ |
|
32 | 41 |
public class QueryParameters extends BaseParameters { |
33 | 42 |
|
34 | 43 |
public void setDefaultValues() { |
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