Java tutorial
/** * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you under the Apache License, Version 2.0 (the * "License"); you may not use this file except in compliance * with the License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, * software distributed under the License is distributed on an * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY * KIND, either express or implied. See the License for the * specific language governing permissions and limitations * under the License. */ package com.gst.organisation.staff.service; import java.sql.ResultSet; import java.sql.SQLException; import java.util.ArrayList; import java.util.Collection; import java.util.List; import java.util.Map; import org.apache.commons.lang.StringUtils; import com.gst.infrastructure.core.domain.JdbcSupport; import com.gst.infrastructure.core.exception.UnrecognizedQueryParamException; import com.gst.infrastructure.core.service.RoutingDataSource; import com.gst.infrastructure.security.service.PlatformSecurityContext; import com.gst.organisation.staff.data.StaffData; import com.gst.organisation.staff.exception.StaffNotFoundException; import com.gst.portfolio.client.domain.ClientStatus; import com.gst.portfolio.loanaccount.domain.LoanStatus; import com.gst.portfolio.savings.domain.SavingsAccountStatusType; import org.joda.time.LocalDate; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.dao.EmptyResultDataAccessException; import org.springframework.jdbc.core.JdbcTemplate; import org.springframework.jdbc.core.RowMapper; import org.springframework.stereotype.Service; @Service public class StaffReadPlatformServiceImpl implements StaffReadPlatformService { private final JdbcTemplate jdbcTemplate; private final PlatformSecurityContext context; private final StaffLookupMapper lookupMapper = new StaffLookupMapper(); private final StaffInOfficeHierarchyMapper staffInOfficeHierarchyMapper = new StaffInOfficeHierarchyMapper(); @Autowired public StaffReadPlatformServiceImpl(final PlatformSecurityContext context, final RoutingDataSource dataSource) { this.context = context; this.jdbcTemplate = new JdbcTemplate(dataSource); } private static final class StaffMapper implements RowMapper<StaffData> { public String schema() { return " s.id as id,s.office_id as officeId, o.name as officeName, s.firstname as firstname, s.lastname as lastname," + " s.display_name as displayName, s.is_loan_officer as isLoanOfficer, s.external_id as externalId, s.mobile_no as mobileNo," + " s.is_active as isActive, s.joining_date as joiningDate from m_staff s " + " join m_office o on o.id = s.office_id"; } @Override public StaffData mapRow(final ResultSet rs, @SuppressWarnings("unused") final int rowNum) throws SQLException { final Long id = rs.getLong("id"); final String firstname = rs.getString("firstname"); final String lastname = rs.getString("lastname"); final String displayName = rs.getString("displayName"); final Long officeId = rs.getLong("officeId"); final boolean isLoanOfficer = rs.getBoolean("isLoanOfficer"); final String officeName = rs.getString("officeName"); final String externalId = rs.getString("externalId"); final String mobileNo = rs.getString("mobileNo"); final boolean isActive = rs.getBoolean("isActive"); final LocalDate joiningDate = JdbcSupport.getLocalDate(rs, "joiningDate"); return StaffData.instance(id, firstname, lastname, displayName, officeId, officeName, isLoanOfficer, externalId, mobileNo, isActive, joiningDate); } } private static final class StaffInOfficeHierarchyMapper implements RowMapper<StaffData> { public String schema(final boolean loanOfficersOnly) { final StringBuilder sqlBuilder = new StringBuilder(200); sqlBuilder.append("s.id as id, s.office_id as officeId, ohierarchy.name as officeName,"); sqlBuilder.append("s.firstname as firstname, s.lastname as lastname,"); sqlBuilder.append( "s.display_name as displayName, s.is_loan_officer as isLoanOfficer, s.external_id as externalId, "); sqlBuilder.append("s.mobile_no as mobileNo, s.is_active as isActive, s.joining_date as joiningDate "); sqlBuilder.append("from m_office o "); sqlBuilder.append("join m_office ohierarchy on o.hierarchy like concat(ohierarchy.hierarchy, '%') "); sqlBuilder.append("join m_staff s on s.office_id = ohierarchy.id and s.is_active=1 "); if (loanOfficersOnly) { sqlBuilder.append("and s.is_loan_officer is true "); } sqlBuilder.append("where o.id = ? "); return sqlBuilder.toString(); } @Override public StaffData mapRow(final ResultSet rs, @SuppressWarnings("unused") final int rowNum) throws SQLException { final Long id = rs.getLong("id"); final String firstname = rs.getString("firstname"); final String lastname = rs.getString("lastname"); final String displayName = rs.getString("displayName"); final Long officeId = rs.getLong("officeId"); final String officeName = rs.getString("officeName"); final boolean isLoanOfficer = rs.getBoolean("isLoanOfficer"); final String externalId = rs.getString("externalId"); final String mobileNo = rs.getString("mobileNo"); final boolean isActive = rs.getBoolean("isActive"); final LocalDate joiningDate = JdbcSupport.getLocalDate(rs, "joiningDate"); return StaffData.instance(id, firstname, lastname, displayName, officeId, officeName, isLoanOfficer, externalId, mobileNo, isActive, joiningDate); } } private static final class StaffLookupMapper implements RowMapper<StaffData> { private final String schemaSql; public StaffLookupMapper() { final StringBuilder sqlBuilder = new StringBuilder(100); sqlBuilder.append("s.id as id, s.display_name as displayName "); sqlBuilder.append("from m_staff s "); sqlBuilder.append("join m_office o on o.id = s.office_id "); this.schemaSql = sqlBuilder.toString(); } public String schema() { return this.schemaSql; } @Override public StaffData mapRow(final ResultSet rs, @SuppressWarnings("unused") final int rowNum) throws SQLException { final Long id = rs.getLong("id"); final String displayName = rs.getString("displayName"); return StaffData.lookup(id, displayName); } } @Override public Collection<StaffData> retrieveAllLoanOfficersInOfficeById(final Long officeId) { return retrieveAllStaff(" office_id=" + officeId + " and is_loan_officer=1"); } @Override public Collection<StaffData> retrieveAllStaffForDropdown(final Long officeId) { //adding the Authorization criteria so that a user cannot see an employee who does not belong to his office or a sub office for his office. final String hierarchy = this.context.authenticatedUser().getOffice().getHierarchy(); final Long defaultOfficeId = defaultToUsersOfficeIfNull(officeId); final String sql = "select " + this.lookupMapper.schema() + " where s.office_id = ? and s.is_active=1 and o.hierarchy like '" + hierarchy + "%'"; return this.jdbcTemplate.query(sql, this.lookupMapper, new Object[] { defaultOfficeId }); } private Long defaultToUsersOfficeIfNull(final Long officeId) { Long defaultOfficeId = officeId; if (defaultOfficeId == null) { defaultOfficeId = this.context.authenticatedUser().getOffice().getId(); } return defaultOfficeId; } @Override public StaffData retrieveStaff(final Long staffId) { //adding the Authorization criteria so that a user cannot see an employee who does not belong to his office or a sub office for his office. final String hierarchy = this.context.authenticatedUser().getOffice().getHierarchy(); try { final StaffMapper rm = new StaffMapper(); final String sql = "select " + rm.schema() + " where s.id = ? and o.hierarchy like '" + hierarchy + "%'"; return this.jdbcTemplate.queryForObject(sql, rm, new Object[] { staffId }); } catch (final EmptyResultDataAccessException e) { throw new StaffNotFoundException(staffId); } } @Override public Collection<StaffData> retrieveAllStaff(final String sqlSearch, final Long officeId, final boolean loanOfficersOnly, final String status) { final String extraCriteria = getStaffCriteria(sqlSearch, officeId, loanOfficersOnly, status); return retrieveAllStaff(extraCriteria); } private Collection<StaffData> retrieveAllStaff(final String extraCriteria) { final StaffMapper rm = new StaffMapper(); String sql = "select " + rm.schema(); if (StringUtils.isNotBlank(extraCriteria)) { sql += " where " + extraCriteria; } sql = sql + " order by s.lastname"; return this.jdbcTemplate.query(sql, rm, new Object[] {}); } private String getStaffCriteria(final String sqlSearch, final Long officeId, final boolean loanOfficersOnly, final String status) { final StringBuffer extraCriteria = new StringBuffer(200); if (sqlSearch != null) { extraCriteria.append(" and (").append(sqlSearch).append(")"); } if (officeId != null) { extraCriteria.append(" and office_id = ").append(officeId).append(" "); } if (loanOfficersOnly) { extraCriteria.append(" and s.is_loan_officer is true "); } // Passing status parameter to get ACTIVE (By Default), INACTIVE or ALL // (Both active and Inactive) employees if (status.equalsIgnoreCase("active")) { extraCriteria.append(" and is_active = 1 "); } else if (status.equalsIgnoreCase("inActive")) { extraCriteria.append(" and is_active = 0 "); } else if (status.equalsIgnoreCase("all")) { } else { throw new UnrecognizedQueryParamException("status", status, new Object[] { "all", "active", "inactive" }); } //adding the Authorization criteria so that a user cannot see an employee who does not belong to his office or a sub office for his office. final String hierarchy = this.context.authenticatedUser().getOffice().getHierarchy(); extraCriteria.append(" and o.hierarchy like '" + hierarchy + "%' "); if (StringUtils.isNotBlank(extraCriteria.toString())) { extraCriteria.delete(0, 4); } // remove begin four letter including a space from the string. return extraCriteria.toString(); } @Override public Collection<StaffData> retrieveAllStaffInOfficeAndItsParentOfficeHierarchy(final Long officeId, final boolean loanOfficersOnly) { String sql = "select " + this.staffInOfficeHierarchyMapper.schema(loanOfficersOnly); sql = sql + " order by s.lastname"; return this.jdbcTemplate.query(sql, this.staffInOfficeHierarchyMapper, new Object[] { officeId }); } @Override public Object[] hasAssociatedItems(final Long staffId) { ArrayList<String> params = new ArrayList<String>(); String sql = "select c.display_name as client, g.display_name as grp,l.loan_officer_id as loan, s.field_officer_id as sav" + " from m_staff staff " + " left outer join m_client c on staff.id = c.staff_id AND c.status_enum < " + ClientStatus.CLOSED.getValue() + " left outer join m_group g on staff.id = g.staff_id " + " left outer join m_loan l on staff.id = l.loan_officer_id and l.loan_status_id < " + LoanStatus.WITHDRAWN_BY_CLIENT.getValue() + " left outer join m_savings_account s on c.staff_id = s.field_officer_id and s.status_enum < " + SavingsAccountStatusType.WITHDRAWN_BY_APPLICANT.getValue() + " where staff.id = " + staffId + " group by staff.id"; List<Map<String, Object>> result = this.jdbcTemplate.queryForList(sql); if (result != null) { for (Map<String, Object> map : result) { if (map.get("client") != null) { params.add("client"); } if (map.get("grp") != null) { params.add("group"); } if (map.get("loan") != null) { params.add("loan"); } if (map.get("sav") != null) { params.add("savings account"); } } } return params.toArray(); } }