root / branches / v2_0_0_prep / libraries / libFMap_dal / src / org / gvsig / fmap / dal / impl / DefaultDataManager.java @ 24496
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package org.gvsig.fmap.dal.impl; |
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import java.lang.reflect.InvocationTargetException; |
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import java.util.HashMap; |
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import java.util.List; |
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import java.util.Map; |
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import org.gvsig.fmap.dal.DALLocator; |
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import org.gvsig.fmap.dal.DataExplorer; |
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import org.gvsig.fmap.dal.DataExplorerParameters; |
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import org.gvsig.fmap.dal.DataManager; |
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import org.gvsig.fmap.dal.DataStore; |
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import org.gvsig.fmap.dal.DataStoreParameters; |
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import org.gvsig.fmap.dal.exceptions.InitializeException; |
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import org.gvsig.fmap.dal.exceptions.ProviderNotRegisteredException; |
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import org.gvsig.fmap.dal.feature.FeatureAttributeDescriptor; |
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import org.gvsig.fmap.dal.feature.FeatureStore; |
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import org.gvsig.fmap.dal.feature.FeatureType; |
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import org.gvsig.fmap.dal.feature.impl.DefaultFeatureIndex; |
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import org.gvsig.fmap.dal.feature.impl.DefaultFeatureStore; |
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import org.gvsig.fmap.dal.feature.spi.FeatureStoreProvider; |
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import org.gvsig.fmap.dal.feature.spi.FeatureStoreProviderServices; |
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import org.gvsig.fmap.dal.feature.spi.index.FeatureIndexProvider; |
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import org.gvsig.fmap.dal.feature.spi.index.FeatureIndexProviderServices; |
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import org.gvsig.fmap.dal.resource.ResourceManager; |
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import org.gvsig.fmap.dal.spi.DataManagerProviderServices; |
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import org.gvsig.fmap.dal.spi.DataStoreProvider; |
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import org.gvsig.tools.ToolsLocator; |
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import org.gvsig.tools.evaluator.Evaluator; |
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import org.gvsig.tools.operations.OperationManager; |
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public class DefaultDataManager implements DataManager, DataManagerProviderServices { |
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final static private String DATA_MANAGER_STORE = "Data.manager.stores"; |
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final static private String DATA_MANAGER_STORE_DESCRIPTION = "DAL stores providers"; |
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final static private String DATA_MANAGER_STORE_PARAMS = "Data.manager.stores.params"; |
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final static private String DATA_MANAGER_STORE_PARAMS_DESCRIPTION = "DAL stores providers parameters"; |
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final static private String DATA_MANAGER_EXPLORER = "Data.manager.explorers"; |
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final static private String DATA_MANAGER_EXPLORER_DESCRIPTION = "DAL explorers providers"; |
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final static private String DATA_MANAGER_EXPLORER_PARAMS = "Data.manager.explorers.params"; |
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final static private String DATA_MANAGER_EXPLORER_PARAMS_DESCRIPTION = "DAL explorer providers parameters"; |
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final static private String DATA_MANAGER_INDEX = "Data.manager.indexes"; |
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final static private String DATA_MANAGER_INDEX_DESCRIPTION = "DAL index providers"; |
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final static private String DATA_MANAGER_EXPRESION_EVALUATOR = "Data.manager.expresion.evaluator"; |
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final static private String DATA_MANAGER_EXPRESION_EVALUATOR_DEFAULT = "default"; |
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final static private String DATA_MANAGER_EXPRESION_EVALUATOR_DESCRIPTION = "DAL expresion evaluators."; |
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/** This map contains the name of the default provider for each data type */
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private Map defaultDataIndexProviders; |
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public DefaultDataManager() {
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/*
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* Create te extensions point in te registry.
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*/
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ToolsLocator.getExtensionPointManager().add(DATA_MANAGER_STORE, |
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DATA_MANAGER_STORE_DESCRIPTION); |
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ToolsLocator.getExtensionPointManager().add(DATA_MANAGER_STORE_PARAMS, |
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DATA_MANAGER_STORE_PARAMS_DESCRIPTION); |
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ToolsLocator.getExtensionPointManager().add(DATA_MANAGER_EXPLORER, |
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DATA_MANAGER_EXPLORER_DESCRIPTION); |
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ToolsLocator.getExtensionPointManager().add( |
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DATA_MANAGER_EXPLORER_PARAMS, |
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DATA_MANAGER_EXPLORER_PARAMS_DESCRIPTION); |
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ToolsLocator.getExtensionPointManager().add(DATA_MANAGER_INDEX, |
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DATA_MANAGER_INDEX_DESCRIPTION); |
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ToolsLocator.getExtensionPointManager().add( |
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DATA_MANAGER_EXPRESION_EVALUATOR, |
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DATA_MANAGER_EXPRESION_EVALUATOR_DESCRIPTION); |
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initializeIndexes(); |
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} |
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/**
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*
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* @return ResourceManager
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*/
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public ResourceManager getResourceManager() {
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return DALLocator.getResourceManager();
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} |
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public OperationManager getOperationManager() {
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return ToolsLocator.getOperationManager();
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} |
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public String getTemporaryDirectory() { |
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// FIXME Define a better tempdir solution
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String tmp = System.getenv("TMP"); |
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if (tmp == null) { |
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tmp = System.getenv("TEMP"); |
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} |
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if (tmp == null) { |
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tmp = System.getenv("HOME"); |
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} |
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return tmp;
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} |
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/*
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* ====================================================================
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*
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* Store related services
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*/
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public void registerStoreProvider(String name, |
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Class storeProviderClass,
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Class parametersClass) {
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ToolsLocator.getExtensionPointManager().add(DATA_MANAGER_STORE, |
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DATA_MANAGER_STORE_DESCRIPTION).append(name, null,
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storeProviderClass); |
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ToolsLocator.getExtensionPointManager().add(DATA_MANAGER_STORE_PARAMS, |
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DATA_MANAGER_STORE_PARAMS_DESCRIPTION).append(name, null,
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parametersClass); |
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} |
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public DataStoreParameters createStoreParameters(String name) |
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throws InitializeException, ProviderNotRegisteredException {
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try {
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DataStoreParameters params = (DataStoreParameters) ToolsLocator |
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.getExtensionPointManager().get(DATA_MANAGER_STORE_PARAMS) |
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.create(name); |
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if (params == null) { |
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throw new ProviderNotRegisteredException(name); |
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} |
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return params;
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} catch (InstantiationException e) { |
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throw new InitializeException(e); |
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} catch (IllegalAccessException e) { |
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throw new InitializeException(e); |
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} catch (SecurityException e) { |
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throw new InitializeException(e); |
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} catch (IllegalArgumentException e) { |
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throw new InitializeException(e); |
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} |
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} |
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public DataStore createStore(DataStoreParameters parameters)
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throws InitializeException, ProviderNotRegisteredException {
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String name = parameters.getDataStoreName();
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try {
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DataStoreProvider storeProvider = (DataStoreProvider) ToolsLocator |
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.getExtensionPointManager().get(DATA_MANAGER_STORE).create( |
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name, new Object[] { parameters }); |
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if (storeProvider == null) { |
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throw new ProviderNotRegisteredException(name); |
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} |
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return new DefaultFeatureStore(this, parameters, |
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(FeatureStoreProvider) storeProvider); |
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} catch (InstantiationException e) { |
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throw new InitializeException(e); |
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} catch (IllegalAccessException e) { |
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throw new InitializeException(e); |
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} catch (SecurityException e) { |
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throw new InitializeException(e); |
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} catch (IllegalArgumentException e) { |
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throw new InitializeException(e); |
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} catch (NoSuchMethodException e) { |
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throw new InitializeException(e); |
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} catch (InvocationTargetException e) { |
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throw new InitializeException(e); |
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} |
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} |
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public List getStoreProviders() { |
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return ToolsLocator.getExtensionPointManager().get(DATA_MANAGER_STORE)
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.getNames(); |
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} |
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/*
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* ====================================================================
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*
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* Explorer related services
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*/
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public void registerExplorerProvider(String name, Class explorerClass, |
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Class parametersClass) {
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ToolsLocator.getExtensionPointManager().add(DATA_MANAGER_EXPLORER, |
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DATA_MANAGER_EXPLORER_DESCRIPTION).append(name, null,
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explorerClass); |
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ToolsLocator.getExtensionPointManager().add( |
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DATA_MANAGER_EXPLORER_PARAMS, |
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DATA_MANAGER_EXPLORER_PARAMS_DESCRIPTION).append(name, null,
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parametersClass); |
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} |
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public DataExplorerParameters createExplorerParameters(String name) |
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throws InitializeException, ProviderNotRegisteredException {
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try {
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DataExplorerParameters params = (DataExplorerParameters) ToolsLocator |
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.getExtensionPointManager() |
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.get( |
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DATA_MANAGER_EXPLORER_PARAMS) |
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.create(name); |
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if (params == null) { |
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throw new ProviderNotRegisteredException(name); |
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} |
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return params;
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} catch (InstantiationException e) { |
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throw new InitializeException(e); |
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} catch (IllegalAccessException e) { |
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throw new InitializeException(e); |
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} catch (SecurityException e) { |
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throw new InitializeException(e); |
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} catch (IllegalArgumentException e) { |
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throw new InitializeException(e); |
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} |
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} |
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public DataExplorer createExplorer(DataExplorerParameters parameters)
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throws InitializeException, ProviderNotRegisteredException {
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String name = parameters.getType().getName();
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try {
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DataExplorer explorer = (DataExplorer) ToolsLocator |
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.getExtensionPointManager().get(DATA_MANAGER_STORE).create( |
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name, new Object[] { parameters }); |
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if (explorer == null) { |
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throw new ProviderNotRegisteredException(name); |
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} |
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return explorer;
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} catch (InstantiationException e) { |
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throw new InitializeException(e); |
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} catch (IllegalAccessException e) { |
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throw new InitializeException(e); |
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} catch (SecurityException e) { |
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throw new InitializeException(e); |
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} catch (IllegalArgumentException e) { |
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throw new InitializeException(e); |
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} catch (NoSuchMethodException e) { |
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throw new InitializeException(e); |
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} catch (InvocationTargetException e) { |
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throw new InitializeException(e); |
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} |
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} |
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public List getExplorerProviders() { |
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return ToolsLocator.getExtensionPointManager().get(
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DATA_MANAGER_EXPLORER).getNames(); |
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} |
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/*
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* ====================================================================
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*
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* Expresion evaluation related services
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*/
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public Evaluator createExpresion(String expresion) |
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throws InitializeException {
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try {
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return (Evaluator) ToolsLocator.getExtensionPointManager().get(
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DATA_MANAGER_EXPRESION_EVALUATOR).create( |
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DATA_MANAGER_EXPRESION_EVALUATOR_DEFAULT, |
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new Object[] { expresion }); |
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} catch (SecurityException e) { |
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throw new InitializeException(e); |
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} catch (IllegalArgumentException e) { |
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throw new InitializeException(e); |
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} catch (NoSuchMethodException e) { |
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throw new InitializeException(e); |
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} catch (InstantiationException e) { |
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throw new InitializeException(e); |
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} catch (IllegalAccessException e) { |
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throw new InitializeException(e); |
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} catch (InvocationTargetException e) { |
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throw new InitializeException(e); |
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} |
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} |
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public void registerDefaultEvaluator(Class evaluatorClass) { |
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if (!evaluatorClass.isInstance(Evaluator.class)) {
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throw new ClassCastException(); |
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} |
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ToolsLocator.getExtensionPointManager().add( |
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DATA_MANAGER_EXPRESION_EVALUATOR, |
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DATA_MANAGER_EXPRESION_EVALUATOR_DESCRIPTION).append( |
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DATA_MANAGER_EXPRESION_EVALUATOR_DEFAULT, |
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"Default expresion evaluator for use in DAL", evaluatorClass);
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} |
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/*
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* ====================================================================
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*
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* Index related services
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*/
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public List getFeatureIndexProviders() { |
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return ToolsLocator.getExtensionPointManager().get(DATA_MANAGER_INDEX)
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.getNames(); |
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} |
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public void setDefaultFeatureIndexProviderName(int dataType, String name) { |
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defaultDataIndexProviders.put(new Integer(dataType), name); |
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} |
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public String getDefaultFeatureIndexProviderName(int dataType) { |
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return (String) defaultDataIndexProviders.get(new Integer(dataType)); |
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} |
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public FeatureIndexProviderServices createFeatureIndexProvider(
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String name, FeatureStore store, FeatureType type, String indexName, |
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FeatureAttributeDescriptor attr) |
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throws InitializeException, ProviderNotRegisteredException {
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if (name == null) { |
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name = getDefaultFeatureIndexProviderName(attr.getDataType()); |
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} |
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try {
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FeatureIndexProvider provider = (FeatureIndexProvider) ToolsLocator |
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.getExtensionPointManager() |
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.get( |
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DATA_MANAGER_INDEX) |
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.create(name); |
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if (provider == null) { |
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throw new ProviderNotRegisteredException(name); |
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} |
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FeatureIndexProviderServices services = new DefaultFeatureIndex((FeatureStoreProviderServices) store, type, provider, attr.getName(), indexName);
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services.initialize(); |
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return services;
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} catch (InstantiationException e) { |
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throw new InitializeException(e); |
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} catch (IllegalAccessException e) { |
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throw new InitializeException(e); |
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} catch (SecurityException e) { |
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throw new InitializeException(e); |
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} catch (IllegalArgumentException e) { |
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throw new InitializeException(e); |
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} |
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} |
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public void registerFeatureIndexProvider(String name, String description, |
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Class clazz, int dataType) { |
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ToolsLocator.getExtensionPointManager().add(DATA_MANAGER_INDEX, |
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DATA_MANAGER_INDEX_DESCRIPTION).append(name, null,
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clazz); |
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if (getDefaultFeatureIndexProviderName(dataType) == null) { |
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setDefaultFeatureIndexProviderName(dataType, name); |
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} |
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} |
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private void initializeIndexes() { |
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this.defaultDataIndexProviders = new HashMap(); |
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} |
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} |