root / tags / v1_1_Build_1001 / libraries / libIverUtiles / src / com / iver / utiles / connections / ConnectionDB.java @ 11984
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/* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
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*
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* Copyright (C) 2004 IVER T.I. and Generalitat Valenciana.
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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., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
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*
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* For more information, contact:
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*
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* Generalitat Valenciana
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* Conselleria d'Infraestructures i Transport
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* Av. Blasco Ib??ez, 50
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* 46010 VALENCIA
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* SPAIN
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*
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* +34 963862235
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* gvsig@gva.es
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* www.gvsig.gva.es
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*
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* or
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*
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* IVER T.I. S.A
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* Salamanca 50
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* 46005 Valencia
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* Spain
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*
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* +34 963163400
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* dac@iver.es
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*/
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package com.iver.utiles.connections; |
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import java.io.File; |
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import java.io.FileInputStream; |
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import java.io.FileOutputStream; |
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import java.io.IOException; |
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import java.sql.Connection; |
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import java.sql.DatabaseMetaData; |
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import java.sql.DriverManager; |
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import java.sql.ResultSet; |
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import java.sql.SQLException; |
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import java.sql.Statement; |
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import java.util.ArrayList; |
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import java.util.Properties; |
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import org.apache.commons.dbcp.ConnectionFactory; |
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import org.apache.commons.dbcp.DriverManagerConnectionFactory; |
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import org.apache.commons.dbcp.PoolableConnectionFactory; |
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import org.apache.commons.dbcp.PoolingDriver; |
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import org.apache.commons.pool.ObjectPool; |
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import org.apache.commons.pool.impl.GenericObjectPool; |
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/**
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* Class responsible of the operations on the database.
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*
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* @author Vicente Caballero Navarro
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*/
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public class ConnectionDB { |
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public static ConnectionDB instance = new ConnectionDB(); |
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private ConnectionTrans[] connTrans; |
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/**
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* Creates a new one ConnectionDB.
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*/
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private ConnectionDB() {
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} |
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public void setConnTrans(ConnectionTrans[] ct){ |
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connTrans=ct; |
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} |
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/**
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* It returns a static instance of the class.
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*
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* @return instance
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*/
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public static ConnectionDB getInstance() { |
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return instance;
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} |
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/**
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* It verifies that the connection is correct
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*
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* @param ct Data of the connection
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* @param driver Driver
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*
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* @throws ConnectionException
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*/
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public boolean testDB(ConnectionTrans ct) |
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throws ConnectionException {
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/*try {
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Class.forName(driver.getDriverString());
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} catch (java.lang.ClassNotFoundException e) {
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throw new ConnectionException("Driver no encontrado", e);
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}
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*/
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String url = ct.getConnBeginning() + "//" + |
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ct.getHost() + ":" + ct.getPort() + "/" + ct.getDb(); |
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String user = ct.getUser();
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String password = ct.getPassword();
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ConnectionFactory connectionFactory = new DriverManagerConnectionFactory(url,
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user, password); |
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Connection connection = null; |
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try {
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connection = connectionFactory.createConnection(); |
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} catch (SQLException e) { |
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throw new ConnectionException(JDBCManager.getTranslation("fallo_crear_conexion"), e); |
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} catch (Exception e) { |
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throw new ConnectionException(JDBCManager.getTranslation("fallo_crear_conexion"), e); |
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} |
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try {
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connection.close(); |
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} catch (SQLException e) { |
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throw new ConnectionException(JDBCManager.getTranslation("fallo_crear_conexion"), e); |
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} |
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return true; |
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} |
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/**
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* Returns a connection by Name.
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*
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* @param url_name Name of connection
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*
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* @return Connection
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*
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* @throws ConnectionException
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*/
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public Connection getConnectionByName(String url_name) |
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throws ConnectionException {
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Connection conn = null; |
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try {
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conn = DriverManager.getConnection("jdbc:apache:commons:dbcp:" + |
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url_name); |
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} catch (SQLException e) { |
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throw new ConnectionException(JDBCManager.getTranslation("fallo_obtener_conexion_existente"), |
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e); |
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} |
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return conn;
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} |
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/**
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* Returns a connection from the data
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*
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* @param ct Data connection
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*
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* @return Connection
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*
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* @throws ConnectionException
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*/
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public Connection getConnection(ConnectionTrans ct) |
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throws ConnectionException {
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//VectorialJDBCDriver driver = getDriver(ct.getDriver());
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String name = ct.getHost() + "_" + ct.getName(); |
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Connection conn = null; |
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/* try {
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Class.forName(driver.getDriverString());
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} catch (ClassNotFoundException e) {
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throw new ConnectionException("Driver no encontrado", e);
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}
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*/
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setupDriver(ct); |
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conn = getConnectionByName(name); |
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return conn;
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} |
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/**
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* Returns a Driver by name.
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*
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* @param name Driver?s name
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*
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* @return Driver
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*
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* @throws ConnectionException
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*/
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/* public VectorialJDBCDriver getDriver(String name)
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throws ConnectionException {
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VectorialJDBCDriver driver = null;
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String[] drivers = LayerFactory.getDM().getDriverNames();
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for (int i = 0; i < drivers.length; i++) {
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try {
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if (LayerFactory.getDM().getDriver(drivers[i]) instanceof VectorialJDBCDriver) {
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VectorialJDBCDriver d = (VectorialJDBCDriver) LayerFactory.getDM()
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.getDriver(drivers[i]);
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if (d.getName().equals(name)) {
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driver = d;
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}
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}
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} catch (DriverLoadException e) {
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throw new ConnectionException("Driver no encontrado", e);
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}
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}
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return driver;
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}
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*/
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/**
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* Registers in the driverpool a new connection
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*
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* @param ct Data connection
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* @param driver Driver
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*
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* @throws ConnectionException
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*/
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public void setupDriver(ConnectionTrans ct) |
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throws ConnectionException {
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String url = ct.getConnBeginning() + "//" + |
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ct.getHost() + ":" + ct.getPort() + "/" + ct.getDb(); |
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String user = ct.getUser();
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String password = ct.getPassword();
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String name = ct.getHost() + "_" + ct.getName(); |
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ObjectPool connectionPool = new GenericObjectPool();
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ConnectionFactory connectionFactory = new DriverManagerConnectionFactory(url,
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user, password); |
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try {
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PoolableConnectionFactory poolableConnectionFactory = new PoolableConnectionFactory(connectionFactory,
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connectionPool, null, null, false, true); |
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} catch (Exception e) { |
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throw new ConnectionException(JDBCManager.getTranslation("fallo_crear_pool"), |
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e); |
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} |
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try {
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Class.forName("org.apache.commons.dbcp.PoolingDriver"); |
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} catch (ClassNotFoundException e) { |
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throw new ConnectionException("Clase : " + |
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"org.apache.commons.dbcp.PoolingDriver", e);
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} |
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PoolingDriver driverPool; |
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try {
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driverPool = (PoolingDriver) DriverManager.getDriver(
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"jdbc:apache:commons:dbcp:");
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} catch (SQLException e) { |
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throw new ConnectionException(JDBCManager.getTranslation("fallo_registrar_conexion"), e); |
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} |
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driverPool.registerPool(name, connectionPool); |
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ct.setConnected(true);
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} |
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/**
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* Executes a query
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*
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* @param SQL query
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* @param name Driver?s name
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*
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* @throws ConnectionException
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*/
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public void ejecutaSQLnors(String SQL, String name) |
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throws ConnectionException {
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Connection conn = null; |
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Statement s = null; |
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try {
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try {
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conn = DriverManager.getConnection("jdbc:apache:commons:dbcp:" + |
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name); |
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s = conn.createStatement(); |
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s.execute(SQL); |
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} catch (SQLException e) { |
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throw new ConnectionException(JDBCManager.getTranslation("fallo_realizar_consulta"), |
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e); |
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} |
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} finally {
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try {
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s.close(); |
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} catch (Exception e) { |
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} |
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try {
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conn.close(); |
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} catch (Exception e) { |
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} |
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} |
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} |
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/**
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* Returns the names of the tables
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*
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* @param conn Connection
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*
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* @return Array of string with the names of the tables.
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*
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* @throws ConnectionException
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*/
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public String[] getTableNames(Connection conn) throws ConnectionException { |
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//Connection conn=getConnectionByName(name);
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ArrayList tableNames = new ArrayList(); |
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String nombreTablas = "%"; // Listamos todas las tablas |
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String[] tipos = new String[1]; // Listamos s?lo tablas |
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tipos[0] = "TABLE"; |
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try {
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DatabaseMetaData dbmd = conn.getMetaData();
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ResultSet tablas = dbmd.getTables(null, null, nombreTablas, tipos); |
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boolean seguir = tablas.next();
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while (seguir) {
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// Mostramos s?lo el nombre de las tablas, guardado
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// en la columna "TABLE_NAME"
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System.out.println(tablas.getString(tablas.findColumn(
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"TABLE_NAME")));
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tableNames.add(tablas.getString(tablas.findColumn("TABLE_NAME")));
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seguir = tablas.next(); |
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} |
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} catch (SQLException e) { |
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throw new ConnectionException(JDBCManager.getTranslation("fallo_obtener_tablas"), |
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e); |
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} |
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return (String[]) tableNames.toArray(new String[0]); |
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} |
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/**
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* Keeps in disk the data of the connection
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*
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* @param ct Data connection
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*
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* @throws IOException
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*/
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public void setPersistence(ConnectionTrans ct) throws IOException { |
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String name = ct.getHost() + "_" + ct.getName(); |
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Properties properties = new Properties(); |
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properties.put("jdbc.drivers", ct.getDriver());
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properties.put("jdbc.name", ct.getName());
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properties.put("jdbc.host", ct.getHost());
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properties.put("jdbc.port", ct.getPort());
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properties.put("jdbc.username", ct.getUser());
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properties.put("jdbc.savepassword", String.valueOf(ct.isSavePassword())); |
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if (ct.isSavePassword()) {
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properties.put("jdbc.password", ct.getPassword());
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} |
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properties.put("jdbc.database", ct.getDb());
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properties.put("jdbc.connBeginning",ct.getConnBeginning());
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boolean success = true; |
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File file = null; |
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/*
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* TODO LWS: esto tiene pinta de no ser portable (case, en linux). Ahora
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* en el Launcher de Andami hay un appHome, pero si lo pongo aqui ya estamos metiendo
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* dependencias circulares ...
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*/
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String directory = System.getProperty("user.home") + "\\" + "gvsig" + |
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"\\" + "connections"; |
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if (!new File(directory).exists()) { |
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file = new File(directory); |
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success = file.mkdirs(); |
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} |
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if (success) {
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File f = new File(directory + "/" + name + ".properties"); |
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f.createNewFile(); |
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FileOutputStream out = new FileOutputStream(f); |
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properties.store(out, name); |
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out.close(); |
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} |
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} |
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public void delPersistence(String name){ |
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String directory = System.getProperty("user.home") + "\\" + "gvsig" + |
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"\\" + "connections"; |
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File dir = new File(directory); |
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File[] files = dir.listFiles(); |
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for (int i = 0; i < files.length; i++) { |
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if (files[i].getName().substring(0,files[i].getName().length()-11).equals(name)){ |
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files[i].delete(); |
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} |
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} |
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} |
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/**
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* Returns the data of the connection
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*
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* @return Array of data connections
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*
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* @throws IOException
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*/
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public ConnectionTrans[] getPersistence() throws IOException { |
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ArrayList conns = new ArrayList(); |
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String directory = System.getProperty("user.home") + "\\" + "gvsig" + |
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"\\" + "connections"; |
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File dir = new File(directory); |
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File[] files = dir.listFiles(); |
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if (files == null) |
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return null; |
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for (int i = 0; i < files.length; i++) { |
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Properties properties = new Properties(); |
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FileInputStream in = new FileInputStream(files[i]); |
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properties.load(in); |
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in.close(); |
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ConnectionTrans ct = new ConnectionTrans();
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ct.setDriver(properties.get("jdbc.drivers").toString());
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ct.setName(properties.get("jdbc.name").toString());
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ct.setHost(properties.get("jdbc.host").toString());
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ct.setPort(properties.get("jdbc.port").toString());
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ct.setUser(properties.get("jdbc.username").toString());
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boolean isSave = Boolean.valueOf(properties.get("jdbc.savepassword") |
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.toString()) |
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.booleanValue(); |
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ct.setSavePassword(isSave); |
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if (isSave) {
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ct.setPassword(properties.get("jdbc.password").toString());
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} |
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ct.setDb(properties.get("jdbc.database").toString());
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ct.setConnBegining(properties.get("jdbc.connBeginning").toString());
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conns.add(ct); |
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} |
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return (ConnectionTrans[]) conns.toArray(new ConnectionTrans[0]); |
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} |
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public ConnectionTrans[] getDefaultTrans() { |
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return connTrans;
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} |
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} |