CollegeServiceSpringImpl.java

Source Code‎ > ‎src‎ > ‎in.co.sunrays.proj1‎ > ‎service‎ > ‎

package in.co.sunrays.proj1.service;

import in.co.sunrays.proj1.dao.CollegeDAOInt;
import in.co.sunrays.proj1.dto.CollegeDTO;
import in.co.sunrays.proj1.exception.ApplicationException;
import in.co.sunrays.proj1.exception.DatabaseException;
import in.co.sunrays.proj1.exception.DuplicateRecordException;

import java.util.List;

import org.apache.log4j.Logger;

/**
* Spring Implementation of College Service
*
* @author SUNRAYS Technologies
* @version 1.0
* @Copyright (c) SUNRAYS Technologies
*/
public class CollegeServiceSpringImpl implements CollegeServiceInt {

    /**
    * Logger
    */
    private static Logger log = Logger
            .getLogger(CollegeServiceSpringImpl.class);
    /**
    * Get CollegeDAO Instance from Factory of DAO
    */
    private CollegeDAOInt dao;

    /**
    * Injects DAO object
    *
    * @param dao
    */
    public void setDao(CollegeDAOInt dao) {
        this.dao = dao;
    }

    /**
    * Add a College
    *
    * @param dto
    * @throws ApplicationException
    * @throws DuplicateRecordException
    *             : throws when College is already exists
    */
    @Override
    public long add(CollegeDTO dto) throws ApplicationException,
            DuplicateRecordException {
        log.debug("Service add Started");
        long pk = 0;
        try {
            CollegeDTO dtoExist = dao.findByName(dto.getName());
            if (dtoExist != null) {
                throw new DuplicateRecordException("Name already exists");
            }
            pk = dao.add(dto);
        } catch (DatabaseException e) {
            log.error("Application Exception..", e);
            throw new ApplicationException("Database Exception");
        }
        log.debug("Service add End");
        return pk;
    }

    /**
    * Update a College
    *
    * @param dto
    * @throws ApplicationException
    * @throws DuplicateRecordException
    *             : throws when updated College is already exists
    */
    @Override
    public void update(CollegeDTO dto) throws ApplicationException,
            DuplicateRecordException {
        log.debug("Service update Started");
        try {
            CollegeDTO dtoExist = dao.findByName(dto.getName());
            // Check if updated College is already exists
            if (dtoExist != null && dtoExist.getId() != dto.getId()) {
                throw new DuplicateRecordException("Duplicate Roll Number");
            }
            dao.update(dto);
        } catch (DatabaseException e) {
            log.error("Application Exception..", e);
            throw new ApplicationException("Database Exception");
        }
        log.debug("Service update End");
    }

    /**
    * Delete a College
    *
    * @param dto
    * @throws ApplicationException
    */
    @Override
    public void delete(CollegeDTO dto) throws ApplicationException {
        log.debug("Service delete Started");
        try {
            CollegeDTO dtoExist = findByPK(dto.getId());
            if (dtoExist == null) {
                throw new ApplicationException("College does not exist");
            }
            dao.delete(dto);
        } catch (DatabaseException e) {
            log.error("Application Exception..", e);
            throw new ApplicationException("Database Exception");
        }
        log.debug("Service delete End");
    }

    /**
    * Find College by Name
    *
    * @param name
    *            : get parameter
    * @return dto
    * @throws ApplicationException
    */
    @Override
    public CollegeDTO findByName(String name) throws ApplicationException {
        log.debug("Service findByName Started");
        CollegeDTO dto;
        try {
            dto = dao.findByName(name);
        } catch (DatabaseException e) {
            log.error("Application Exception..", e);
            throw new ApplicationException("Database Exception");
        }
        log.debug("Service findByName End");
        return dto;
    }

    /**
    * Find College by PK
    *
    * @param pk
    *            : get parameter
    * @return dto
    * @throws ApplicationException
    */
    @Override
    public CollegeDTO findByPK(long pk) throws ApplicationException {
        log.debug("Service findByPK Started");
        CollegeDTO dto;
        try {
            dto = dao.findByPK(pk);
        } catch (DatabaseException e) {
            log.error("Application Exception..", e);
            throw new ApplicationException("Database Exception");
        }
        log.debug("Service findByPK End");
        return dto;
    }

    /**
    * Search Colleges with pagination
    *
    * @return list : List of Colleges
    * @param dto
    *            : Search Parameters
    * @param pageNo
    *            : Current Page No.
    * @param pageSize
    *            : Size of Page
    * @throws ApplicationException
    */
    @Override
    public List search(CollegeDTO dto, int pageNo, int pageSize)
            throws ApplicationException {
        log.debug("Service search Started");
        List list;
        try {
            list = dao.search(dto, pageNo, pageSize);
        } catch (DatabaseException e) {
            log.error("Application Exception..", e);
            throw new ApplicationException("Database Exception");
        }
        log.debug("Service search End");
        return list;
    }

    /**
    * Search Colleges
    *
    * @return list : List of Colleges
    * @param dto
    *            : Search Parameters
    * @throws ApplicationException
    */
    @Override
    public List search(CollegeDTO dto) throws ApplicationException {
        log.debug("Service search Started");
        List list;
        try {
            list = dao.search(dto);
        } catch (DatabaseException e) {
            log.error("Application Exception..", e);
            throw new ApplicationException("Database Exception");
        }
        log.debug("Service search End");
        return list;
    }

    /**
    * Get List of Colleges
    *
    * @return list : List of Colleges
    * @throws ApplicationException
    */
    public List list() throws ApplicationException {
        log.debug("Service list Started");
        List list;
        try {
            list = dao.list();
        } catch (DatabaseException e) {
            log.error("Application Exception..", e);
            throw new ApplicationException("Database Exception");
        }
        log.debug("Service list End");
        return list;
    }

    /**
    * Get List of Colleges with pagination
    *
    * @return list : List of Colleges
    * @param pageNo
    *            : Current Page No.
    * @param pageSize
    *            : Size of Page
    * @throws ApplicationException
    */
    public List list(int pageNo, int pageSize) throws ApplicationException {
        log.debug("Service list Started");
        List list;
        try {
            list = dao.list(pageNo, pageSize);
        } catch (DatabaseException e) {
            log.error("Application Exception..", e);
            throw new ApplicationException("Database Exception");
        }
        log.debug("Service list End");
        return list;
    }

}

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