root / branches / v2_0_0_prep / libraries / libFMap_data / src / org / gvsig / fmap / data / DataManager.java @ 23339
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package org.gvsig.fmap.data; |
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import java.util.ArrayList; |
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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.feature.expressionevaluator.ExpressionParser; |
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import org.gvsig.fmap.data.operation.DataStoreOperation; |
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import org.gvsig.fmap.data.operation.DataStoreOperationContext; |
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import org.gvsig.fmap.data.operation.DataStoreOperationException; |
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import org.gvsig.fmap.data.operation.DataStoreOperationNotSupportedException; |
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import com.iver.utiles.NotExistInXMLEntity; |
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import com.iver.utiles.XMLEntity; |
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import com.iver.utiles.XMLException; |
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public class DataManager { |
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private static ArrayList registers = new ArrayList(); |
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private static DataManager manager = null; |
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private ExpressionParser expressionParser = null; |
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public static DataManager getManager() { |
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if( manager == null ) { |
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manager = new DataManager();
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} |
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return manager;
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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 static ResourceManager getResourceManager() { |
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return ResourceManager.getResourceManager();
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} |
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private List dataStoreOperations = new ArrayList(); |
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public DataManager() {
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// org.gvsig.fmap.data.feature.driver.shp.Register.selfRegister();
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// org.gvsig.fmap.data.feature.driver.Register.selfRegister();
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// org.gvsig.fmap.data.gml.Register.selfRegister();
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} |
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public void registerGeometryHandler(String dataStoreID, Class geometryHandlerClass) { |
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} |
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/**
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*
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* @param String
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* name
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* @param Class
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* dataStoreClass
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* @param Class
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* parametersClass
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*/
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public void registerDataStore(String name, Class dataStoreClass, Class parametersClass) { |
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RegisterInfo register = new RegisterInfo(RegisterInfo.TYPE_STORE, name,
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dataStoreClass, parametersClass); |
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if (registers.contains(register)){
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return;
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} |
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registers.add(register); |
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} |
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/**
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* Levanta una instancia de los parametros solicitados inicializa el nombre
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* en la instancia y la devuelve.
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*
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* @throws InitializeException
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* TODO
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**/
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/**
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* Start a instance of the solicited parameters inicialize the instance name
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* and returns it.
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*
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* @param String
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* name
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* @throws InitializeException
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* TODO
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**/
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public DataStoreParameters createDataStoreParameters(String name) throws InitializeException{ |
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RegisterInfo registerInfo = this.getRegisterByName(name);
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if (registerInfo == null){ |
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throw new InitializeException("Not registered in manager",name); |
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} else if (registerInfo.type != RegisterInfo.TYPE_STORE) { |
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throw new InitializeException("Not register as Store", name); |
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} |
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try {
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return (DataStoreParameters)registerInfo.parametersClazz.newInstance();
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} catch (InstantiationException e) { |
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throw new InitializeException(name,e); |
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} catch (IllegalAccessException e) { |
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throw new InitializeException(name,e); |
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} |
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} |
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public DataStoreParameters createDataStoreParameters(XMLEntity xmlEntity)
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throws InitializeException {
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String name;
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try {
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name = xmlEntity.getStringProperty("dataStoreName");
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} catch (NotExistInXMLEntity e) {
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throw new InitializeException("dataStoreName property not set", |
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"DataManager");
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} |
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DataStoreParameters params = this.createDataStoreParameters(name);
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params.loadFromXMLEntity(xmlEntity); |
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return params;
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} |
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/**
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* Levanta la instancia del datasource,
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* levanta una instancia del driver que precisa el datasource
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* y por ultimo invoca al metodo init del datasource.
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* @throws InitializeException
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**/
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/**
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* Start a instance of datasource, start a instance of driver that
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* datasource needs at ends invoke datasource init method
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*
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* @params DataStoreParameters parameters
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* @throws InitializeException
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**/
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public DataStore createDataStore(DataStoreParameters parameters) throws InitializeException { |
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String name = parameters.getDataStoreName();
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RegisterInfo registerInfo = this.getRegisterByName(name);
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if (registerInfo == null){ |
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throw new InitializeException("Not registered in manager",name); |
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} |
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try {
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DataStore dataStore= (DataStore)registerInfo.clazz.newInstance(); |
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dataStore.init(parameters); |
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return dataStore;
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} catch (InstantiationException e) { |
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throw new InitializeException(name,e); |
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} catch (IllegalAccessException e) { |
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throw new InitializeException(name,e); |
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} |
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} |
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public DataStore createDataStore(XMLEntity xmlEntity)
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throws InitializeException {
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String name;
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try {
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name = xmlEntity.getStringProperty("dataStoreName");
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} catch (NotExistInXMLEntity e) {
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throw new InitializeException("dataStoreName property not set", |
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"DataManager");
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} |
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RegisterInfo registerInfo = this.getRegisterByName(name);
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if (registerInfo == null) { |
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throw new InitializeException("Not registered in manager", name); |
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} |
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try {
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DataStore dataStore = (DataStore) registerInfo.clazz.newInstance(); |
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dataStore.setXMLEntity(xmlEntity); |
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return dataStore;
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} catch (InstantiationException e) { |
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throw new InitializeException(name, e); |
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} catch (IllegalAccessException e) { |
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throw new InitializeException(name, e); |
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} catch (XMLException e) {
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throw new InitializeException(name, e); |
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} |
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} |
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/** Como conjunto de propiedades genericas a un tipo de DataStore
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* a las que se puede acceder sin tener que crear un DataStore/Driver.
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*
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* Por ejemplo para "DriverDataSource.shp" podria tener el
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* tamaño de identificador de campo.
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*
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* En "DriverDataSource.postgres" podria aportar informacion sobre
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* las tablas disponibles o cosas asi. Hay que ver que precisa
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* GeoDB y de donde lo puede obtener.
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*
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* Hay que pensarlo bien.
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*
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*/
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/**
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* Collection of generic properties of a DataStore type which can access
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* without create a DataStore/Driver.
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*
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* For example for "DriverDataSource.shp" could have the size of the data
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* identification.
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*
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* In "DriverDataSource.postgres" could add information about availables
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* tables or things like that. We`ll have to see what GeoDB needs and where
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* it can get.
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*
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* We have to think it good.
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*/
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/**
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* @param String name
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* @param Class dataSourceClass
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* @param Class parametersClass
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*/
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public void registerDataExplorer(String name, Class dataSourceClass, Class parametersClass) { |
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RegisterInfo register = new RegisterInfo(RegisterInfo.TYPE_EXPLORER,
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name, dataSourceClass, parametersClass); |
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if (registers.contains(register)){
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return;
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} |
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registers.add(register); |
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} |
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/**
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* Levanta una instancia de los parametros solicitados
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* inicializa el nombre en la instancia
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* y la devuelve.
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* @throws InitializeException TODO
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**/
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/**
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* Start a instance with solicited parameters starts name in the instance
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* and returns it.
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*
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* @param String
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* name
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* @throws InitializeException
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* TODO
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**/
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public DataExplorerParameters createDataExplorerParameters(String name) throws InitializeException { |
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RegisterInfo registerInfo = this.getRegisterByName(name);
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if (registerInfo == null){ |
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throw new InitializeException("Not registered in manager",name); |
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} else if (registerInfo.type != RegisterInfo.TYPE_EXPLORER) { |
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throw new InitializeException("Not register as Explorer", name); |
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} |
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try {
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return (DataExplorerParameters)registerInfo.parametersClazz.newInstance();
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} catch (InstantiationException e) { |
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throw new InitializeException(name,e); |
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} catch (IllegalAccessException e) { |
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throw new InitializeException(name,e); |
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} catch (Exception e) { |
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// TODO: de momento para los class en el caso de que no exista el explorer.
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throw new InitializeException(name, e); |
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} |
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} |
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/**
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*
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* @param DataExplorerParameters
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* parameters
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* @return DataExplorer
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* @throws InitializeException
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*/
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public DataExplorerParameters createDataExplorerParameters(
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XMLEntity xmlEntity) throws InitializeException {
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String name = null; |
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try {
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name = xmlEntity.getStringProperty("dataExplorerName");
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} catch (NotExistInXMLEntity e) {
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throw new InitializeException("dataExplorerName property not set", |
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"DataManager");
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} |
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DataExplorerParameters params = this.createDataExplorerParameters(name);
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params.loadFromXMLEntity(xmlEntity); |
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return params;
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} |
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public DataExplorer createDataExplorer(DataExplorerParameters parameters) throws InitializeException { |
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RegisterInfo registerInfo = this.getRegisterByName(parameters.getDataExplorerName());
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if (registerInfo == null){ |
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throw new InitializeException("Not registered in manager",parameters.getDataExplorerName()); |
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} |
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try {
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DataExplorer dataSource= (DataExplorer)registerInfo.clazz.newInstance(); |
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dataSource.init(parameters); |
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return dataSource;
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} catch (InstantiationException e) { |
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throw new InitializeException(parameters.getDataExplorerName(),e); |
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} catch (IllegalAccessException e) { |
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throw new InitializeException(parameters.getDataExplorerName(),e); |
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} |
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} |
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/**
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*
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* @param String
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* name
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* @return RegisterInfo
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*/
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public DataExplorer createDataExplorer(XMLEntity xmlEntity)
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throws InitializeException {
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String name;
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try {
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name = xmlEntity.getStringProperty("dataExplorerName");
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} catch (NotExistInXMLEntity e) {
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throw new InitializeException("dataExplorerName property not set", |
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"DataManager");
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} |
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RegisterInfo registerInfo = this.getRegisterByName(name);
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if (registerInfo == null) { |
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throw new InitializeException("Not registered in manager", |
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name); |
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} |
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try {
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DataExplorer dataSource = (DataExplorer) registerInfo.clazz |
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.newInstance(); |
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dataSource.init(xmlEntity); |
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return dataSource;
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} catch (InstantiationException e) { |
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throw new InitializeException(name, e); |
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} catch (IllegalAccessException e) { |
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throw new InitializeException(name, e); |
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} |
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} |
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private RegisterInfo getRegisterByName(String name){ |
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Iterator iterator=registers.iterator();
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while (iterator.hasNext()) {
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RegisterInfo registerInfo = (RegisterInfo) iterator.next(); |
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if (name.equals(registerInfo.name)){
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return registerInfo;
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} |
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} |
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return null; |
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} |
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/**
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*
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* @param String
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* storeName
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* @param String
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* operationName
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* @param DataStoreOperation
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* operation
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* @return int index
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* @throws IllegalArgumentException
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*/
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public int registerDataStoreOperation(String storeName, String operationName, DataStoreOperation operation) { |
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if (operationName == null){ |
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throw new IllegalArgumentException("operationName cannot be null."); |
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} |
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if (operation == null){ |
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throw new IllegalArgumentException("operation cannot be null."); |
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} |
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RegisterInfo register = this.getRegisterByName(storeName);
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if (register == null){ |
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throw new IllegalArgumentException(storeName + " not registered"); |
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} |
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int index = registerGeometryOperationName(operationName);
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register.registerOperation(index, operation); |
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return index;
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} |
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/**
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*
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* @param String
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* operationName
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* @return int index
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* @throws IllegalArgumentException
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*/
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private int registerGeometryOperationName(String operationName) { |
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if (operationName == null) { |
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throw new IllegalArgumentException("operationName cannot be null."); |
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} |
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int index = dataStoreOperations .indexOf(operationName);
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if (index == -1) { |
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dataStoreOperations.add(operationName); |
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index = dataStoreOperations.indexOf(operationName); |
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} |
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return index;
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} |
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/**
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*
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* @param String
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* operationName
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* @return int index
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*/
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private int getOperationIndex(String operationName) { |
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return dataStoreOperations .indexOf(operationName);
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} |
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/**
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*
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* @param DataStore
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* store
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* @param int code
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* @param DataStoreOperationContext
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* context
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* @return Object
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* @throws DataStoreOperationException
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* @throws DataStoreOperationNotSupportedException
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*/
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public Object invokeDataStoreOperation(DataStore store,int code,DataStoreOperationContext context) throws DataStoreOperationException, DataStoreOperationNotSupportedException{ |
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if (code < 0 || code >= dataStoreOperations.size()){ |
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throw new DataStoreOperationNotSupportedException(code,"{not registered}",store.getName()); |
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} |
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RegisterInfo register = this.getRegisterByName(store.getName());
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DataStoreOperation operation = register.getOperation(code); |
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if (operation == null){ |
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throw new DataStoreOperationNotSupportedException(code,(String)this.dataStoreOperations.get(code),store.getName()); |
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} |
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return operation.invoke(store, context);
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|
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} |
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|
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/**
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*
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* @param DataStore
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* store
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* @param String
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* operationName
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* @param DataStoreOperationContext
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* context
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* @return Object
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* @throws DataStoreOperationException
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* @throws DataStoreOperationNotSupportedException
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*/
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public Object invokeDataStoreOperation(DataStore store,String operationName,DataStoreOperationContext context) throws DataStoreOperationException, DataStoreOperationNotSupportedException{ |
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return this.invokeDataStoreOperation(store, this.getOperationIndex(operationName), context); |
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} |
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|
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private class RegisterInfo{ |
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public static final String TYPE_STORE = "store"; |
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public static final String TYPE_EXPLORER = "explorer"; |
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|
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private String name; |
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private String type; |
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private Class clazz; |
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private Class parametersClazz; |
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private List operations = new ArrayList(); |
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|
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/**
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*
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* @param String
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* type
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* @param String
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* name
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* @param Class
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* dsc
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* @param Class
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* pc
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*/
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|
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public RegisterInfo(String type, String name, Class dsc, Class pc) { |
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this.type = type;
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this.name=name;
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this.clazz=dsc;
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this.parametersClazz=pc;
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} |
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|
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/*
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* (non-Javadoc)
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* @see java.lang.Object#equals(java.lang.Object)
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*/
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public boolean equals(Object obj) { |
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if (obj instanceof RegisterInfo){ |
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RegisterInfo ri = (RegisterInfo)obj; |
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return ri.name.equals(this.name) && |
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ri.clazz.equals(this.clazz) &&
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ri.parametersClazz.equals(this.parametersClazz);
|
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} |
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return super.equals(obj); |
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} |
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|
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/**
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*
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* @param int index
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* @param DataStoreOperation
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* operation
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*/
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public void registerOperation(int index, DataStoreOperation operation){ |
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|
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while (index > operations.size()) {
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operations.add(null);
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} |
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|
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if (index == operations.size()) {
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operations.add(operation); |
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} else {
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operations.set(index, operation); |
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} |
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} |
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|
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/**
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*
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* @param int index
|
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* @return DataStoreOperation
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*/
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|
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public DataStoreOperation getOperation(int index){ |
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try{
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return (DataStoreOperation) this.operations.get(index); |
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}catch (IndexOutOfBoundsException e) { |
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return null; |
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} |
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} |
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|
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|
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} |
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|
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/**
|
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*
|
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* @param String
|
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* toreName
|
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* @param String
|
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* operationName
|
| 548 |
* @return boolean
|
| 549 |
*/
|
| 550 |
|
| 551 |
public boolean implementsDataStoreOperation( |
| 552 |
String storeName, String operationName) { |
| 553 |
return this.implementsDataStoreOperation(storeName, this.getOperationIndex(operationName)); |
| 554 |
} |
| 555 |
|
| 556 |
/**
|
| 557 |
*
|
| 558 |
* @param String
|
| 559 |
* storeName
|
| 560 |
* @param int operationCode
|
| 561 |
* @return boolean
|
| 562 |
*/
|
| 563 |
|
| 564 |
public boolean implementsDataStoreOperation( |
| 565 |
String storeName, int operationCode) { |
| 566 |
RegisterInfo register = this.getRegisterByName(storeName);
|
| 567 |
DataStoreOperation operation = register.getOperation(operationCode); |
| 568 |
if (operation == null){ |
| 569 |
return false; |
| 570 |
} |
| 571 |
return true; |
| 572 |
} |
| 573 |
|
| 574 |
/**
|
| 575 |
*
|
| 576 |
* @return String[] reg
|
| 577 |
*/
|
| 578 |
|
| 579 |
public String[] getRegisters() { |
| 580 |
String[] reg=new String[registers.size()]; |
| 581 |
for (int i = 0; i < registers.size(); i++) { |
| 582 |
reg[i]=((RegisterInfo)registers.get(i)).name; |
| 583 |
} |
| 584 |
return reg;
|
| 585 |
} |
| 586 |
|
| 587 |
/**
|
| 588 |
*
|
| 589 |
* @return String[] TYPE_STORE
|
| 590 |
*/
|
| 591 |
|
| 592 |
public String[] getRegistersStores() { |
| 593 |
return this.getRegisterOfType(RegisterInfo.TYPE_STORE); |
| 594 |
} |
| 595 |
|
| 596 |
/**
|
| 597 |
*
|
| 598 |
* @return String[] TYPE_EXPLORER
|
| 599 |
*/
|
| 600 |
|
| 601 |
public String[] getRegistersExplorers() { |
| 602 |
return this.getRegisterOfType(RegisterInfo.TYPE_EXPLORER); |
| 603 |
} |
| 604 |
|
| 605 |
/**
|
| 606 |
*
|
| 607 |
* @param String
|
| 608 |
* type
|
| 609 |
* @return String[]
|
| 610 |
*/
|
| 611 |
|
| 612 |
private String[] getRegisterOfType(String type) { |
| 613 |
List reg = new ArrayList(); |
| 614 |
RegisterInfo info = null;
|
| 615 |
for (int i = 0; i < registers.size(); i++) { |
| 616 |
info =(RegisterInfo) registers.get(i); |
| 617 |
if (info.type == type) {
|
| 618 |
reg.add(info.name); |
| 619 |
} |
| 620 |
} |
| 621 |
return (String[]) reg.toArray(new String[0]); |
| 622 |
|
| 623 |
} |
| 624 |
|
| 625 |
|
| 626 |
/**
|
| 627 |
* @param expressionParser the expressionParser to set
|
| 628 |
*/
|
| 629 |
public void setExpressionParser(ExpressionParser expressionParser) { |
| 630 |
this.expressionParser = expressionParser;
|
| 631 |
} |
| 632 |
|
| 633 |
/**
|
| 634 |
* @return the expressionParser
|
| 635 |
*/
|
| 636 |
public ExpressionParser getExpressionParser() {
|
| 637 |
return expressionParser;
|
| 638 |
} |
| 639 |
|
| 640 |
|
| 641 |
|
| 642 |
|
| 643 |
} |