svn-gvsig-desktop / trunk / libraries / libDataSource / src / org / gvsig / data / DataSourceManager.java @ 19442
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package org.gvsig.data; |
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import java.util.ArrayList; |
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import java.util.Iterator; |
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import org.gvsig.data.datastores.vectorial.driver.IDriver; |
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import org.gvsig.data.datastores.vectorial.driver.IDriverParameters; |
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import org.gvsig.data.exception.InitializeException; |
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public class DataSourceManager { |
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private static ArrayList registers = new ArrayList(); |
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private static DataSourceManager manager = null; |
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public static DataSourceManager getManager() { |
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if( manager == null ) { |
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manager = new DataSourceManager();
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} |
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return manager;
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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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public DataSourceManager() {
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// org.gvsig.data.datastores.vectorial.driver.shp.Register.selfRegister();
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// org.gvsig.data.datastores.vectorial.driver.Register.selfRegister();
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// org.gvsig.data.datastores.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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public void registerDataStore(String name, Class dataStoreClass, Class parametersClass) { |
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RegisterInfo register=new RegisterInfo(name,dataStoreClass,parametersClass);
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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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**/
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public IDataStoreParameters createDataStoreParameters(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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try {
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return (IDataStoreParameters)registerInfo.parametersClazz.newInstance();
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} catch (InstantiationException e) { |
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// TODO Auto-generated catch block
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e.printStackTrace(); |
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} catch (IllegalAccessException e) { |
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// TODO Auto-generated catch block
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e.printStackTrace(); |
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} |
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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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* 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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public IDataStore createDataStore(IDataStoreParameters parameters) throws InitializeException { |
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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 (registerInfo.parametersClazz.isAssignableFrom(parameters.getClass())){
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try {
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IDataStore dataStore= (IDataStore)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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// TODO Auto-generated catch block
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e.printStackTrace(); |
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} catch (IllegalAccessException e) { |
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// TODO Auto-generated catch block
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e.printStackTrace(); |
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} |
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} |
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} |
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return null; |
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} |
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public void registerDriver(String name, Class driverClass, Class parametersClass) { |
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RegisterInfo register=new RegisterInfo(name,driverClass,parametersClass);
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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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**/
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public IDriverParameters createDriverParameters(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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try {
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return (IDriverParameters)registerInfo.parametersClazz.newInstance();
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} catch (InstantiationException e) { |
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// TODO Auto-generated catch block
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e.printStackTrace(); |
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} catch (IllegalAccessException e) { |
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// TODO Auto-generated catch block
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e.printStackTrace(); |
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} |
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} |
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} |
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return null; |
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} |
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public IDriver createDriver(IDriverParameters parameters) throws InitializeException { |
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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 (registerInfo.parametersClazz.isAssignableFrom(parameters.getClass())){
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try {
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IDriver driver= (IDriver)registerInfo.clazz.newInstance(); |
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driver.init(parameters); |
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return driver;
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} catch (InstantiationException e) { |
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throw new InitializeException(parameters.getClass().getName(),e); |
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} catch (IllegalAccessException e) { |
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throw new InitializeException(parameters.getClass().getName(),e); |
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} |
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} |
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} |
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return null; |
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} |
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//FIXME: COncepto de DataSource
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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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public void registerDataSource(String name, Class dataSourceClass, Class parametersClass) { |
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RegisterInfo register=new RegisterInfo(name,dataSourceClass,parametersClass);
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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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**/
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public IDataSourceParameters createDataSourceParameters(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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try {
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return (IDataSourceParameters)registerInfo.parametersClazz.newInstance();
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} catch (InstantiationException e) { |
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// TODO Auto-generated catch block
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e.printStackTrace(); |
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} catch (IllegalAccessException e) { |
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// TODO Auto-generated catch block
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e.printStackTrace(); |
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} |
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} |
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} |
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return null; |
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} |
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public IDataSource createDataSource(IDataSourceParameters parameters) {
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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 (registerInfo.parametersClazz.isAssignableFrom(parameters.getClass())){
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try {
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IDataSource dataSource= (IDataSource)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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// TODO Auto-generated catch block
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e.printStackTrace(); |
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} catch (IllegalAccessException e) { |
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// TODO Auto-generated catch block
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e.printStackTrace(); |
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} |
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} |
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} |
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return null; |
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} |
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private class RegisterInfo{ |
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private String name; |
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private Class clazz; |
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private Class parametersClazz; |
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public RegisterInfo(String name, Class dsc, Class pc){ |
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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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} |