pointbasecatalogdao.java

ejb克斯人随风俗

/* Copyright 2004 Sun Microsystems, Inc. All rights reserved.
 
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 $Id: PointbaseCatalogDAO.java,v 1.1 2004/04/09 00:42:31 yutayoshida Exp $ */

package com.sun.j2ee.blueprints.catalog.dao;

import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import javax.sql.DataSource;
import java.util.Locale;
import java.util.ArrayList;


import com.sun.j2ee.blueprints.util.tracer.Debug;
import com.sun.j2ee.blueprints.util.dao.*;
import com.sun.j2ee.blueprints.catalog.*;


/**
 * This class implements CatalogDAO for Pointbase database.
 * This class encapsulates all the JDBC calls .
 * The logic of inserting/fetching/updating/deleting  the data in
 * relational database tables is implemented here.
 */
public class PointbaseCatalogDAO implements CatalogDAO {
    
    private final static String SELECT_LODGINGS_QUERY_STR = "SELECT "+
    "lodgingid, name, description, price, location" +"  FROM "+ DatabaseNames.LODGING_TABLE +
    " WHERE location = ? AND locale = ?";
    private final static String SELECT_LODGING_QUERY_STR = "SELECT "+
    "lodgingid, name, description, price, location" +"  FROM "+ DatabaseNames.LODGING_TABLE +
    " WHERE lodgingid = ? AND locale = ?";
    private final static String SELECT_TRANSPORTATIONS_QUERY_STR = "SELECT "+
    "transportationid, name, description, imageuri, price, origin, destination,carrier,departuretime, arrivaltime, class"+" FROM " + DatabaseNames.TRANSPORTATION_TABLE +
    " WHERE origin = ? AND destination = ? AND locale = ?";
    private final static String SELECT_TRANSPORTATION_QUERY_STR = "SELECT "+
    "transportationid, name, description, imageuri, price, origin, destination,carrier,departuretime, arrivaltime, class"+" FROM " + DatabaseNames.TRANSPORTATION_TABLE +
    " WHERE transportationid = ? AND locale = ?";
    private final static String SELECT_ACTIVITIES_QUERY_STR = "SELECT "+
    "activityid, name, description, price, location "+" FROM " + DatabaseNames.ACTIVITY_TABLE +
    " WHERE location = ? AND locale = ?";
    private final static String SELECT_ACTIVITY_QUERY_STR = "SELECT "+
    "activityid, name, description, price, location "+" FROM " + DatabaseNames.ACTIVITY_TABLE +
    " WHERE activityid = ? AND locale = ?";
    private final static String SELECT_ADVENTURE_PACKAGE_QUERY_STR = "SELECT "+
    "name, description, price, location, lodgingid  "+" FROM " + DatabaseNames.PACKAGE_TABLE +
    " WHERE packageid = ? AND locale = ?";
    private final static String SELECT_ACTIVITYLIST_QUERY_STR = "SELECT "+
    "activityid"+" FROM " + DatabaseNames.ACTIVITYLIST_TABLE +
    " WHERE packageid = ? AND locale = ?";
    
    public PointbaseCatalogDAO() {
    }
    
    public ArrayList getLodgings(String location, Locale locale)
    throws CatalogDAOException, DAOSystemException {

        PreparedStatement stmt = null;
        ResultSet result = null;
        Connection dbConnection = null;
        
        ArrayList lodgings = new ArrayList();
        try {
            dbConnection = DAOUtils.getDBConnection(JNDINames.CATALOG_DATASOURCE);
            stmt = dbConnection.prepareStatement(SELECT_LODGINGS_QUERY_STR);
            stmt.setString(1, location.trim());
            stmt.setString(2, locale.toString().trim());
            result = stmt.executeQuery();
            if ( !result.next() )
                throw new CatalogDAOException(
                "No data found for  " + location +" , "+locale.toString());
            do {
                int i = 1;
                String lodgingId = result.getString(i++);
                String name = result.getString(i++);
                String description = result.getString(i++);
                double price = result.getDouble(i++);
                location = result.getString(i++);
                lodgings.add(new Lodging(lodgingId , name, description, price, location));
            }
            while(result.next());
            
            return(lodgings );
        } catch(SQLException se) {
            throw new DAOSystemException("SQLException while getting " +
            "lodging details; location = " + location +" and locale = "+locale.toString()+" \n", se);
        } finally {
            DAOUtils.closeResultSet(result);
            DAOUtils.closeStatement(stmt);
            DAOUtils.closeConnection(dbConnection);
        }
    }
    
    
    
    public Lodging getLodging(String id, Locale locale)
    throws CatalogDAOException, DAOSystemException {

        PreparedStatement stmt = null;
        ResultSet result = null;
        Connection dbConnection = null;
        
        try {
            dbConnection = DAOUtils.getDBConnection(JNDINames.CATALOG_DATASOURCE);
            stmt = dbConnection.prepareStatement(SELECT_LODGING_QUERY_STR);
            stmt.setString(1, id.trim());
            stmt.setString(2, locale.toString().trim());
            result = stmt.executeQuery();
            if ( !result.next() )
                throw new CatalogDAOException(
                "No data found for  " + id +" , "+locale.toString());
            int i = 1;
            String lodgingId = result.getString(i++);
            String name = result.getString(i++);
            String description = result.getString(i++);
            double price = result.getDouble(i++);
            String location = result.getString(i++);
            return new Lodging(lodgingId , name, description, price, location);
        } catch(SQLException se) {
            throw new DAOSystemException("SQLException while getting " +
            "lodging details; id = " + id +" and locale = "+locale.toString()+" \n", se);
        } finally {
            DAOUtils.closeResultSet(result);
            DAOUtils.closeStatement(stmt);
            DAOUtils.closeConnection(dbConnection);
        }
    }
    
    public AdventurePackage getAdventurePackage(String packageId, Locale locale)
    throws CatalogDAOException, DAOSystemException {

        PreparedStatement stmt = null;
        PreparedStatement stmt2 = null;
        ResultSet result = null;
        ResultSet result2 = null;
        Connection dbConnection = null;
        
        ArrayList transportations = new ArrayList();
        try {
            dbConnection = DAOUtils.getDBConnection(JNDINames.CATALOG_DATASOURCE);
            stmt = dbConnection.prepareStatement(SELECT_ADVENTURE_PACKAGE_QUERY_STR);
            stmt.setString(1, packageId.trim());
            stmt.setString(2, locale.toString().trim());
            result = stmt.executeQuery();
            if ( !result.next() )
                throw new CatalogDAOException(
                "No data found for  " + packageId +" , "+locale.toString());
            int i = 1;
            String name = result.getString(i++).trim();
            String description = result.getString(i++).trim();
            double price = result.getDouble(i++);
            String location = result.getString(i++).trim();
            String lodgingId = result.getString(i++).trim();