Java tutorial
/* * Copyright (C) 2011 - 2016 DVCONSULTORES Este programa es software libre: usted puede redistribuirlo y/o modificarlo bajo los terminos de la Licencia Pblica General GNU publicada por la Fundacion para el Software Libre, ya sea la version 3 de la Licencia, o (a su eleccion) cualquier version posterior. Este programa se distribuye con la esperanza de que sea til, pero SIN GARANTiA ALGUNA; ni siquiera la garantia implicita MERCANTIL o de APTITUD PARA UN PROPoSITO DETERMINADO. Consulte los detalles de la Licencia Pblica General GNU para obtener una informacion mas detallada. Deberia haber recibido una copia de la Licencia Pblica General GNU junto a este programa. En caso contrario, consulte <http://www.gnu.org/licenses/>. */ package org.openbizview.util; /* * To change this template, choose Tools | Templates * and open the template in the editor. */ import java.io.IOException; import java.io.Serializable; import java.sql.*; import java.util.ArrayList; import java.util.Iterator; import java.util.List; import java.util.Map; import javax.annotation.PostConstruct; import javax.faces.application.FacesMessage; import javax.faces.bean.ManagedBean; import javax.faces.bean.ViewScoped; import javax.faces.context.FacesContext; import javax.naming.Context; import javax.naming.InitialContext; import javax.naming.NamingException; import javax.servlet.http.HttpServletRequest; import javax.sql.DataSource; import org.apache.commons.lang3.StringUtils; import org.primefaces.context.RequestContext; import org.primefaces.model.LazyDataModel; import org.primefaces.model.SortOrder; /** * * @author Andres */ @ManagedBean @ViewScoped public class Bvtcat3 extends Bd implements Serializable { /** * */ private static final long serialVersionUID = 1L; private LazyDataModel<Bvtcat3> lazyModel; /** * @return the lazyModel */ public LazyDataModel<Bvtcat3> getLazyModel() { return lazyModel; } @PostConstruct public void init() { if (instancia == null) { instancia = "99999"; } //Si no tiene acceso al mdulo no puede ingresar if (new SeguridadMenuBean().opcmnu("M03") == "false") { RequestContext.getCurrentInstance().execute("PF('idleDialogNP').show()"); } lazyModel = new LazyDataModel<Bvtcat3>() { /** * */ private static final long serialVersionUID = 7217573531435419432L; @Override public List<Bvtcat3> load(int first, int pageSize, String sortField, SortOrder sortOrder, Map<String, Object> filters) { //Filtro if (filters != null) { for (Iterator<String> it = filters.keySet().iterator(); it.hasNext();) { String filterProperty = it.next(); // table column name = field name filterValue = filters.get(filterProperty); } } try { //Consulta select(first, pageSize, sortField, filterValue); //Counter counter(filterValue); //Contador lazy lazyModel.setRowCount(rows); //Necesario para crear la paginacin } catch (SQLException | NamingException | ClassNotFoundException e) { e.printStackTrace(); } return list; } //Arregla bug de primefaces @Override /** * Arregla el Issue 1544 de primefaces lazy loading porge generaba un error * de divisor equal a cero, es solamente un override */ public void setRowIndex(int rowIndex) { /* * The following is in ancestor (LazyDataModel): * this.rowIndex = rowIndex == -1 ? rowIndex : (rowIndex % pageSize); */ if (rowIndex == -1 || getPageSize() == 0) { super.setRowIndex(-1); } else super.setRowIndex(rowIndex % getPageSize()); } }; } private String b_codcat1 = (String) FacesContext.getCurrentInstance().getExternalContext().getSessionMap() .get("cat1"); private String codcatdescat1 = ""; private String b_codcat2 = (String) FacesContext.getCurrentInstance().getExternalContext().getSessionMap() .get("cat2"); private String codcatdescat2 = ""; private String codcat3 = ""; private String descat3 = ""; private Object filterValue = ""; private List<Bvtcat3> list = new ArrayList<Bvtcat3>(); private int validarOperacion = 0; private String instancia = (String) FacesContext.getCurrentInstance().getExternalContext().getSessionMap() .get("instancia"); //Usuario logeado /** * @return the codcat3 */ public String getCodcat3() { return codcat3; } /** * @param codcat3 the codcat3 to set */ public void setCodcat3(String codcat3) { this.codcat3 = codcat3; } /** * @return the descat4 */ public String getDescat3() { return descat3; } /** * @param descat4 the descat4 to set */ public void setDescat3(String descat3) { this.descat3 = descat3; } /** * @return the validarOperacion */ public int getValidarOperacion() { return validarOperacion; } /** * @param validarOperacion the validarOperacion to set */ public void setValidarOperacion(int validarOperacion) { this.validarOperacion = validarOperacion; } /** * @param rows the rows to set */ public void setRows(int rows) { this.rows = rows; } /** * @return the b_codcat1 */ public String getB_codcat1() { return b_codcat1; } /** * @param b_codcat1 the b_codcat1 to set */ public void setB_codcat1(String b_codcat1) { this.b_codcat1 = b_codcat1; } /** * @return the b_codcat2 */ public String getB_codcat2() { return b_codcat2; } /** * @param b_codcat2 the b_codcat2 to set */ public void setB_codcat2(String b_codcat2) { this.b_codcat2 = b_codcat2; } /** * @return the codcatdescat1 */ public String getCodcatdescat1() { return codcatdescat1; } /** * @param codcatdescat1 the codcatdescat1 to set */ public void setCodcatdescat1(String codcatdescat1) { this.codcatdescat1 = codcatdescat1; } /** * @return the codcatdescat2 */ public String getCodcatdescat2() { return codcatdescat2; } /** * @param codcatdescat2 the codcatdescat2 to set */ public void setCodcatdescat2(String codcatdescat2) { this.codcatdescat2 = codcatdescat2; } /////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// //Variables seran utilizadas para capturar mensajes de errores de Oracle y parametros de metodos FacesMessage msj = null; PntGenerica consulta = new PntGenerica(); boolean vGacc; //Validador de opciones del men private int rows; //Registros de tabla private String login = (String) FacesContext.getCurrentInstance().getExternalContext().getSessionMap() .get("usuario"); //Usuario logeado /////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// //Coneccion a base de datos //Pool de conecciones JNDI Connection con; PreparedStatement pstmt = null; ResultSet r; /** * Inserta categoria3. * <p> * <b>Parametros del Metodo:<b> String b_codcat1, String b_codcat2 ,String codcat3, String descat3 unidos como un solo string.<br> * String pool, String login.<br><br> **/ public void insert() throws NamingException { //Valida que los campos no sean nulos String[] veccodcat1 = b_codcat1.split("\\ - ", -1); String[] veccodcat2 = b_codcat2.split("\\ - ", -1); try { Context initContext = new InitialContext(); DataSource ds = (DataSource) initContext.lookup(JNDI); con = ds.getConnection(); String query = "INSERT INTO Bvtcat3 VALUES (?,?,?,?,?,'" + getFecha() + "',?,'" + getFecha() + "',?)"; pstmt = con.prepareStatement(query); pstmt.setString(1, veccodcat1[0].toUpperCase()); pstmt.setString(2, veccodcat2[0].toUpperCase()); pstmt.setString(3, codcat3.toUpperCase()); pstmt.setString(4, descat3.toUpperCase()); pstmt.setString(5, login); pstmt.setString(6, login); pstmt.setInt(7, Integer.parseInt(instancia)); ////System.out.println(query); try { //Avisando pstmt.executeUpdate(); msj = new FacesMessage(FacesMessage.SEVERITY_INFO, getMessage("msnInsert"), ""); limpiarValores(); } catch (SQLException e) { msj = new FacesMessage(FacesMessage.SEVERITY_FATAL, e.getMessage(), ""); } pstmt.close(); con.close(); } catch (Exception e) { e.printStackTrace(); } FacesContext.getCurrentInstance().addMessage(null, msj); } public void delete() throws NamingException { HttpServletRequest request = (HttpServletRequest) FacesContext.getCurrentInstance().getExternalContext() .getRequest(); String[] chkbox = request.getParameterValues("toDelete"); if (chkbox == null) { msj = new FacesMessage(FacesMessage.SEVERITY_WARN, getMessage("del"), ""); } else { try { Context initContext = new InitialContext(); DataSource ds = (DataSource) initContext.lookup(JNDI); con = ds.getConnection(); String param = "'" + StringUtils.join(chkbox, "','") + "'"; String query = "DELETE from Bvtcat3 WHERE b_codcat1||b_codcat2||codcat3 in (" + param + ") and instancia = '" + instancia + "'"; pstmt = con.prepareStatement(query); ////System.out.println(query); try { //Avisando pstmt.executeUpdate(); msj = new FacesMessage(FacesMessage.SEVERITY_INFO, getMessage("msnDelete"), ""); limpiarValores(); } catch (SQLException e) { e.printStackTrace(); msj = new FacesMessage(FacesMessage.SEVERITY_FATAL, e.getMessage(), ""); } pstmt.close(); con.close(); } catch (Exception e) { e.printStackTrace(); } } FacesContext.getCurrentInstance().addMessage(null, msj); } /** * Actualiza categoria3 * <b>Parametros del Metodo:<b> String b_codcat1, String b_codcat2, String codcat3, String descat3 unidos como un solo string.<br> * String pool, String login.<br><br> **/ public void update() throws NamingException { String[] veccodcat1 = b_codcat1.split("\\ - ", -1); String[] veccodcat2 = b_codcat2.split("\\ - ", -1); try { Context initContext = new InitialContext(); DataSource ds = (DataSource) initContext.lookup(JNDI); con = ds.getConnection(); String query = "UPDATE Bvtcat3"; query += " SET descat3 = ?, usract = ?, fecact='" + getFecha() + "'"; query += " WHERE b_codcat1 = ? and b_codcat2 = ? and codcat3 = ? and instancia = '" + instancia + "'"; ////System.out.println(query); pstmt = con.prepareStatement(query); pstmt.setString(1, descat3.toUpperCase()); pstmt.setString(2, login); pstmt.setString(3, veccodcat1[0].toUpperCase()); pstmt.setString(4, veccodcat2[0].toUpperCase()); pstmt.setString(5, codcat3.toUpperCase()); try { //Avisando pstmt.executeUpdate(); if (pstmt.getUpdateCount() == 0) { msj = new FacesMessage(FacesMessage.SEVERITY_ERROR, getMessage("msnNoUpdate"), ""); } else { msj = new FacesMessage(FacesMessage.SEVERITY_INFO, getMessage("msnUpdate"), ""); } descat3 = ""; validarOperacion = 0; } catch (SQLException e) { msj = new FacesMessage(FacesMessage.SEVERITY_INFO, e.getMessage(), ""); } pstmt.close(); con.close(); } catch (Exception e) { } FacesContext.getCurrentInstance().addMessage(null, msj); } public void guardar() throws NamingException, SQLException { if (validarOperacion == 0) { ////System.out.println("Insertar"); insert(); } else { ////System.out.println("Guardar"); update(); } } /** * Leer Datos de categoria2 * @throws NamingException * @throws IOException **/ public void select(int first, int pageSize, String sortField, Object filterValue) throws SQLException, ClassNotFoundException, NamingException { Context initContext = new InitialContext(); DataSource ds = (DataSource) initContext.lookup(JNDI); con = ds.getConnection(); //Reconoce la base de datos de coneccin para ejecutar el query correspondiente a cada uno DatabaseMetaData databaseMetaData = con.getMetaData(); productName = databaseMetaData.getDatabaseProductName();//Identifica la base de datos de coneccin if (b_codcat1 == null) { b_codcat1 = " - "; } if (b_codcat1 == "") { b_codcat1 = " - "; } if (b_codcat2 == null) { b_codcat2 = " - "; } if (b_codcat2 == "") { b_codcat2 = " - "; } String[] veccodcat1 = b_codcat1.split("\\ - ", -1); String[] veccodcat2 = b_codcat2.split("\\ - ", -1); String query = ""; switch (productName) { case "Oracle": query += " select * from "; query += " ( select query.*, rownum as rn from"; query += " (SELECT trim(A.codcat3), trim(A.descat3), trim(A.B_CODCAT1), trim(B.DESCAT1), trim(A.B_CODCAT2), trim(C.DESCAT2) "; query += " FROM BVTCAT3 A, BVTCAT1 B, BVTCAT2 C"; query += " WHERE A.B_CODCAT1=B.CODCAT1"; query += " AND A.B_CODCAT1=C.B_CODCAT1"; query += " AND A.B_CODCAT2=C.CODCAT2"; query += " and A.instancia=B.instancia"; query += " and A.instancia=c.instancia"; query += " and A.b_codcat1 like '" + veccodcat1[0].toUpperCase() + "%'"; query += " and A.b_codcat2 like '" + veccodcat2[0].toUpperCase() + "%'"; query += " and A.codcat3 ||a.descat3 like '%" + ((String) filterValue).toUpperCase() + "%'"; query += " AND a.instancia = '" + instancia + "'"; query += " order by a." + sortField + ") query"; query += " ) where rownum <= " + pageSize; query += " and rn > (" + first + ")"; break; case "PostgreSQL": query += " SELECT trim(A.codcat3), trim(A.descat3), trim(A.B_CODCAT1), trim(B.DESCAT1), trim(A.B_CODCAT2), trim(C.DESCAT2) "; query += " FROM BVTCAT3 A, BVTCAT1 B, BVTCAT2 C"; query += " WHERE A.B_CODCAT1=B.CODCAT1"; query += " AND A.B_CODCAT1=C.B_CODCAT1"; query += " AND A.B_CODCAT2=C.CODCAT2"; query += " and A.instancia=B.instancia"; query += " and A.instancia=c.instancia"; query += " and A.b_codcat1 like '" + veccodcat1[0].toUpperCase() + "%'"; query += " and A.b_codcat2 like '" + veccodcat2[0].toUpperCase() + "%'"; query += " AND a.instancia = '" + instancia + "'"; query += " and A.codcat3 ||a.descat3 like '%" + ((String) filterValue).toUpperCase() + "%'"; query += " order by a." + sortField; query += " LIMIT " + pageSize; query += " OFFSET " + first; break; case "Microsoft SQL Server": query += " SELECT * "; query += " FROM (SELECT "; query += " ROW_NUMBER() OVER (ORDER BY A.CODCAT3 ASC) AS ROW_NUM, "; query += " A.CODCAT3, "; query += " A.DESCAT3, "; query += " A.B_CODCAT1, "; query += " B.DESCAT1, "; query += " A.B_CODCAT2, "; query += " C.DESCAT2 "; query += " FROM BVTCAT3 A, BVTCAT1 B, BVTCAT2 C "; query += " WHERE A.B_CODCAT1=B.CODCAT1 "; query += " AND A.B_CODCAT1=C.B_CODCAT1 "; query += " AND A.B_CODCAT2=C.CODCAT2) TOT "; query += " WHERE "; query += " TOT.B_CODCAT1 LIKE '" + veccodcat1[0].toUpperCase() + "%'"; query += " AND TOT.B_CODCAT2 LIKE '" + veccodcat2[0].toUpperCase() + "%'"; query += " AND TOT.CODCAT3 + TOT.DESCAT3 LIKE '%" + ((String) filterValue).toUpperCase() + "%'"; query += " AND tot.instancia = '" + instancia + "'"; query += " AND TOT.ROW_NUM <= " + pageSize; query += " AND TOT.ROW_NUM > " + first; query += " ORDER BY " + sortField; break; } pstmt = con.prepareStatement(query); r = pstmt.executeQuery(); while (r.next()) { Bvtcat3 select = new Bvtcat3(); select.setCodcat3(r.getString(1)); select.setDescat3(r.getString(2)); select.setB_codcat1(r.getString(3)); select.setCodcatdescat1(r.getString(3) + " - " + r.getString(4)); select.setB_codcat2(r.getString(5)); select.setCodcatdescat2(r.getString(5) + " - " + r.getString(6)); //Agrega la lista list.add(select); } //Cierra las conecciones pstmt.close(); con.close(); } /** * Leer registros en la tabla * @throws NamingException * @throws IOException **/ public void counter(Object filterValue) throws SQLException, NamingException { try { Context initContext = new InitialContext(); DataSource ds = (DataSource) initContext.lookup(JNDI); con = ds.getConnection(); //Reconoce la base de datos de coneccin para ejecutar el query correspondiente a cada uno DatabaseMetaData databaseMetaData = con.getMetaData(); productName = databaseMetaData.getDatabaseProductName();//Identifica la base de datos de coneccin String query = ""; if (b_codcat1 == null) { b_codcat1 = " - "; } if (b_codcat1 == "") { b_codcat1 = " - "; } if (b_codcat2 == null) { b_codcat2 = " - "; } if (b_codcat2 == "") { b_codcat2 = " - "; } String[] veccodcat1 = b_codcat1.split("\\ - ", -1); String[] veccodcat2 = b_codcat2.split("\\ - ", -1); switch (productName) { case "Oracle": query = "SELECT count_bvtcat3('" + ((String) filterValue).toUpperCase() + "','" + veccodcat1[0] + "','" + veccodcat2[0] + "','" + instancia + "') from dual"; break; case "PostgreSQL": query = "SELECT count_bvtcat3('" + ((String) filterValue).toUpperCase() + "','" + veccodcat1[0] + "','" + veccodcat2[0] + "','" + instancia + "')"; break; case "Microsoft SQL Server": query = "SELECT DBO.count_bvtcat3('" + ((String) filterValue).toUpperCase() + "','" + veccodcat1[0] + "','" + veccodcat2[0] + "','" + instancia + "')"; break; } pstmt = con.prepareStatement(query); //System.out.println(query); r = pstmt.executeQuery(); while (r.next()) { rows = r.getInt(1); } } catch (SQLException e) { e.printStackTrace(); } //Cierra las conecciones pstmt.close(); con.close(); r.close(); } /** * @return the rows */ public int getRows() { return rows; } private void limpiarValores() { // TODO Auto-generated method stub codcat3 = ""; descat3 = ""; validarOperacion = 0; } public void reset() { b_codcat1 = null; b_codcat2 = null; } }