com.hyron.poscafe.service.action.RecallAction.java Source code

Introduction

Here is the source code for com.hyron.poscafe.service.action.RecallAction.java

Source

/*
 * Copyright (C) 2018
 *
 * 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 3 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, see <http://www.gnu.org/licenses/>.
 */

/***********************************************************************
 * Module:  RecallAction.java
 * Author:  qianzheng_677
 * Purpose: Defines the Class RecallAction
 ***********************************************************************/

package com.hyron.poscafe.service.action;

import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.ResourceBundle;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

import com.hyron.poscafe.CashRegister;
import com.hyron.poscafe.SysConfigure;
import com.hyron.poscafe.dao.TransDao;
import com.hyron.poscafe.dao.TransDaoImpl;
import com.hyron.poscafe.hw.key.VirtualKey;
import com.hyron.poscafe.model.Trans;
import com.hyron.poscafe.model.TransId;
import com.hyron.poscafe.service.BaseService;
import com.hyron.poscafe.service.exception.OperationDeniedException;
import com.hyron.poscafe.service.exception.ServiceException;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.hibernate.HibernateException;

public class RecallAction extends BaseService implements Action {
    private static final Log log = LogFactory.getLog(LogInOutAction.class);
    private static final String regexp = "\\d+RECALL";
    private SysConfigure sysConfigure = SysConfigure.getInstance();
    private ResourceBundle bundle = ResourceBundle.getBundle(this.getClass().getPackage().getName() + ".Action",
            sysConfigure.getLocale());;
    private List<ActionObserver> observers = new ArrayList<ActionObserver>();
    private Trans trans;
    private long recallTransNo = 0;
    private TransDao transDao = new TransDaoImpl();

    @Override
    public void execute(List<VirtualKey> params) throws OperationDeniedException, ServiceException {
        try {
            super.beginTrans();
            trans = transDao.findById(new TransId(sysConfigure.getShopNo(), sysConfigure.getPosNo(), recallTransNo),
                    getSession());
            if (trans != null) {
                super.commitTrans();
                CashRegister.getInstance().setTrans(trans);
            } else {
                super.commitTrans();
                recallTransNo = 0;
                //TODO i18n
                throw new ServiceException("");
            }

        } catch (HibernateException e) {
            super.rollbackTrans();
        }

    }

    @Override
    public boolean parseParams(List<VirtualKey> params) {
        StringBuffer tmpBuf = new StringBuffer();
        for (VirtualKey vk : params) {
            tmpBuf.append(vk.getValue().isEmpty() ? vk.getKeyType().getType() : vk.getValue());
        }

        Pattern pattern = Pattern.compile(regexp);
        Matcher matcher = pattern.matcher(tmpBuf);
        if (!matcher.matches()) {
            return false;
        }

        int pos = tmpBuf.indexOf("RECALL");
        String tmpStr = tmpBuf.substring(0, pos);
        recallTransNo = Long.valueOf(tmpStr);
        return true;
    }

    @Override
    public void undo() throws OperationDeniedException, UnsupportedOperationException {
        // TODO Auto-generated method stub

    }

    @Override
    public void saveNVRam() throws IOException {
        // TODO Auto-generated method stub

    }

    public Trans getTrans() {
        return trans;
    }

    public void setTrans(Trans trans) {
        this.trans = trans;
    }

    @Override
    public void registerObserver(ActionObserver observer) {
        if (!observers.contains(observer))
            observers.add(observer);
    }

    @Override
    public void removeObserver(ActionObserver observer) {
        observers.remove(observer);
    }

    public void notifyObservers(Object arg) {
        for (ActionObserver observer : observers) {
            observer.update(this, arg);
        }
    }

    @Override
    public String getActionName() {
        return this.getClass().getName();
    }
}