com.exp.tracker.services.impl.JpaPaymentService.java Source code

Introduction

Here is the source code for com.exp.tracker.services.impl.JpaPaymentService.java

Source

/*
 * Copyright 2013 the original author or authors.
 *
 * Licensed 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.exp.tracker.services.impl;

import java.util.ArrayList;
import java.util.Collection;
import java.util.Date;
import java.util.List;

import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;
import javax.persistence.Query;

import org.springframework.binding.message.MessageBuilder;
import org.springframework.stereotype.Repository;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.webflow.execution.RequestContext;

import com.exp.tracker.data.entities.UserSettlementEntity;
import com.exp.tracker.data.model.PaymentBean;
import com.exp.tracker.services.api.PaymentService;

@Service("paymentService")
@Repository
public class JpaPaymentService implements PaymentService {
    private EntityManager em;

    @PersistenceContext
    public void setEntityManager(EntityManager em) {
        this.em = em;
    }

    @SuppressWarnings("unchecked")
    @Transactional(readOnly = true)
    public List<PaymentBean> getPaymnentsForUser(String userName) {
        List<PaymentBean> paymentList = new ArrayList<PaymentBean>();
        Query queryGetPaymentsForUser = null;
        queryGetPaymentsForUser = em.createNamedQuery("paymentsForUser");
        queryGetPaymentsForUser.setParameter("userName", userName);
        // get a list of results
        Collection<Object[]> results = queryGetPaymentsForUser.getResultList();
        for (Object[] oa : results) {
            PaymentBean pb = new PaymentBean();
            // Each object is a list
            pb.setAmount(((Float) oa[0]).floatValue());
            pb.setSettledFlag(((Integer) oa[1]).intValue());
            pb.setStartDate(((Date) oa[2]));
            pb.setEndDate(((Date) oa[3]));
            pb.setSettlementId(((Long) oa[4]).longValue());
            pb.setUserName(((String) oa[5]));
            paymentList.add(pb);
        }
        return paymentList;

    }

    @SuppressWarnings("unchecked")
    @Transactional(readOnly = true)
    public List<PaymentBean> getAllPayments() {
        List<PaymentBean> paymentList = new ArrayList<PaymentBean>();
        Query queryGetAllPayments = null;
        queryGetAllPayments = em.createNamedQuery("allPayments");
        // get a list of results
        Collection<Object[]> results = queryGetAllPayments.getResultList();
        for (Object[] oa : results) {
            PaymentBean pb = new PaymentBean();
            // Each object is a list
            pb.setAmount(((Float) oa[0]).floatValue());
            pb.setSettledFlag(((Integer) oa[1]).intValue());
            pb.setStartDate(((Date) oa[2]));
            pb.setEndDate(((Date) oa[3]));
            pb.setSettlementId(((Long) oa[4]).longValue());
            pb.setUserName(((String) oa[5]));
            pb.setUserSettlementId(((Long) oa[6]).longValue());
            paymentList.add(pb);
        }
        return paymentList;
    }

    @Transactional
    public void applyUserPayment(Long usId, RequestContext ctx) {
        UserSettlementEntity use = new UserSettlementEntity();
        use = em.find(UserSettlementEntity.class, usId);
        use.setSettlementFlag(UserSettlementEntity.SETTLEMENT_COMPLETED);
        Date today = new Date();
        use.setSettledDate(today);
        em.merge(use);
        ctx.getMessageContext()
                .addMessage(new MessageBuilder().info().defaultText("Transaction processed successfuly.").build());
    }

}