Java tutorial
/* * Copyright (C) July 2014 Rafael Aznar * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version 2 * of the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ package com.goplace.service.generic.implementation; import com.goplace.service.publicinterface.ViewServiceInterface; import com.goplace.service.publicinterface.MetaServiceInterface; import com.google.gson.Gson; import com.google.gson.GsonBuilder; import java.lang.reflect.Constructor; import java.sql.Connection; import java.util.ArrayList; import java.util.HashMap; import java.util.List; import com.goplace.bean.generic.implementation.BeanGenImpl; import com.goplace.bean.publicinterface.BeanInterface; import com.goplace.dao.generic.implementation.TableDaoGenImpl; import com.goplace.helper.AppConfigurationHelper; import com.goplace.helper.ExceptionBooster; import com.goplace.helper.FilterBeanHelper; public abstract class ViewServiceGenImpl extends MetaServiceGenImpl implements ViewServiceInterface, MetaServiceInterface { public ViewServiceGenImpl(String ob, String pojo, Connection con) { super(ob, pojo, con); } @Override public String get(Integer id) throws Exception { String data = null; try { oConnection.setAutoCommit(false); BeanGenImpl oGenericBean = (BeanGenImpl) Class .forName("com.goplace.bean.generic.specific.implementation." + strPojo + "BeanGenSpImpl") .newInstance(); Constructor c = Class .forName("com.goplace.dao.generic.specific.implementation." + strPojo + "DaoGenSpImpl") .getConstructor(String.class, Connection.class); TableDaoGenImpl oGenericDao = (TableDaoGenImpl) c.newInstance(strObjectName, oConnection); oGenericBean.setId(id); oGenericBean = (BeanGenImpl) (BeanInterface) oGenericDao.get(oGenericBean, AppConfigurationHelper.getJsonDepth()); GsonBuilder gsonBuilder = new GsonBuilder(); gsonBuilder.setDateFormat("dd/MM/yyyy"); Gson gson = gsonBuilder.excludeFieldsWithoutExposeAnnotation().create(); data = gson.toJson(oGenericBean); } catch (Exception ex) { oConnection.rollback(); ExceptionBooster.boost(new Exception(this.getClass().getName() + ":get ERROR: " + ex.getMessage())); } finally { oConnection.commit(); } return data; } @Override public String getPage(int intRegsPerPag, int intPage, ArrayList<FilterBeanHelper> alFilter, HashMap<String, String> hmOrder) throws Exception { String data = null; try { oConnection.setAutoCommit(false); BeanGenImpl oGenericBean = (BeanGenImpl) Class .forName("com.goplace.bean.generic.specific.implementation." + strPojo + "BeanGenSpImpl") .newInstance(); Constructor c = Class .forName("com.goplace.dao.generic.specific.implementation." + strPojo + "DaoGenSpImpl") .getConstructor(String.class, Connection.class); TableDaoGenImpl oGenericDao = (TableDaoGenImpl) c.newInstance(strObjectName, oConnection); List<BeanInterface> loGenericBean = oGenericDao.getPage(intRegsPerPag, intPage, alFilter, hmOrder); GsonBuilder gsonBuilder = new GsonBuilder(); gsonBuilder.setDateFormat("dd/MM/yyyy"); Gson gson = gsonBuilder.excludeFieldsWithoutExposeAnnotation().create(); data = gson.toJson(loGenericBean); data = "{\"list\":" + data + "}"; } catch (Exception ex) { oConnection.rollback(); ExceptionBooster.boost(new Exception(this.getClass().getName() + ":getPage ERROR: " + ex.getMessage())); } finally { oConnection.commit(); } return data; } @Override public String getPages(int intRegsPerPag, ArrayList<FilterBeanHelper> alFilter) throws Exception { String data = null; try { oConnection.setAutoCommit(false); Constructor c = Class .forName("com.goplace.dao.generic.specific.implementation." + strPojo + "DaoGenSpImpl") .getConstructor(String.class, Connection.class); TableDaoGenImpl oGenericDao = (TableDaoGenImpl) c.newInstance(strObjectName, oConnection); int pages = oGenericDao.getPages(intRegsPerPag, alFilter); data = "{\"data\":\"" + Integer.toString(pages) + "\"}"; } catch (Exception ex) { oConnection.rollback(); ExceptionBooster .boost(new Exception(this.getClass().getName() + ":getPages ERROR: " + ex.getMessage())); } finally { oConnection.commit(); } return data; } @Override public String getCount(ArrayList<FilterBeanHelper> alFilter) throws Exception { String data = null; try { oConnection.setAutoCommit(false); Constructor c = Class .forName("com.goplace.dao.generic.specific.implementation." + strPojo + "DaoGenSpImpl") .getConstructor(String.class, Connection.class); TableDaoGenImpl oGenericDao = (TableDaoGenImpl) c.newInstance(strObjectName, oConnection); int registers = oGenericDao.getCount(alFilter); data = "{\"data\":\"" + Integer.toString(registers) + "\"}"; return data; } catch (Exception ex) { oConnection.rollback(); ExceptionBooster .boost(new Exception(this.getClass().getName() + ":getCount ERROR: " + ex.getMessage())); } finally { oConnection.commit(); } return data; } @Override //no se utiliza por ahora public String getAggregateViewSome(int intRegsPerPag, int intPage, ArrayList<FilterBeanHelper> alFilter, HashMap<String, String> hmOrder) throws Exception { String data = null; try { //falta controlar la transaccin a esta altura String columns = this.getColumns(); String prettyColumns = this.getPrettyColumns(); //String types = this.getTypes(); String page = this.getPage(intRegsPerPag, intPage, alFilter, hmOrder); String pages = this.getPages(intRegsPerPag, alFilter); String registers = this.getCount(alFilter); data = "{\"data\":{" + "\"columns\":" + columns + ",\"prettyColumns\":" + prettyColumns // + ",\"types\":" + types + ",\"page\":" + page + ",\"pages\":" + pages + ",\"registers\":" + registers + "}}"; } catch (Exception ex) { ExceptionBooster.boost( new Exception(this.getClass().getName() + ":getAggregateViewSome ERROR: " + ex.getMessage())); } return data; } @Override public String getAggregateViewOne(Integer id) throws Exception { String data = null; try { //falta controlar la transaccin a esta altura String columns = this.getColumns(); String prettyColumns = this.getPrettyColumns(); //String types = this.getTypes(); String one = this.get(id); data = "{\"data\":{" + "\"columns\":" + columns + ",\"prettyColumns\":" + prettyColumns // + ",\"types\":" + types + ",\"data\":" + one + "}}"; return data; } catch (Exception ex) { ExceptionBooster.boost( new Exception(this.getClass().getName() + ":getAggregateViewOne ERROR: " + ex.getMessage())); } return data; } }