mssqlcategorydao.java

一个免费wap站

package com.eline.wap.resource.dao;

import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.List;

import com.eline.wap.common.jdbc.DBCommonUtils;
import com.eline.wap.common.jdbc.DBSqlManager;
import com.eline.wap.common.model.Page;
import com.eline.wap.common.util.AppLogger;
import com.eline.wap.common.util.SerializeData;
import com.eline.wap.common.util.StringUtils;
import com.eline.wap.resource.exceptions.ResourceDAOSysException;
import com.eline.wap.resource.model.Category;
import com.eline.wap.resource.model.CategoryCondition;

/**
 * 
 * @author Lucifer
 *
 */
public class MSSqlCategoryDAO extends DBSqlManager implements CategoryDAO {
	static private final int TYPE_ADD		= 0;
	static private final int TYPE_UPDATE	= 1;

	public Page getCategories(int parentId, int type, int start, int count) throws ResourceDAOSysException {
		// TODO Auto-generated method stub
		return null;
	}

	public Category getCategory(int categoryId) throws ResourceDAOSysException {
		Connection conn = null;
		PreparedStatement stmt = null;
		ResultSet rst = null;
		Category item = null;
		
		String sql = "SELECT IndexID, Type, ParentID, SortOrder, DateCreated, LastUpdate, IsActive, IsSearchable, SearchKeywords, PropertyNames, PropertyValues FROM TAB_CATEGORY "
			+ "WHERE IndexId = ?";
		System.out.println("getCategory().sql=" + sql);
		System.out.println("getCategory().categoryId=" + categoryId);
		try {
			conn = super.getDBConnection();
			stmt = conn.prepareStatement(sql);
			stmt.setInt(1, categoryId);
			
			rst = stmt.executeQuery();
			
			if (rst.next())
				item = populateCategoryFormResultSet(rst);

		} catch (Exception e) {
			AppLogger.debug("MSSqlCategoryDAO.getCategory().e.getMessage()=" + e.getMessage());
			throw new ResourceDAOSysException(e.getMessage());
		} finally {
			try {
				super.closeResultSet(rst);
				super.closeStatement(stmt);
				super.closeConnection(conn);
			} catch (Exception e) {
				throw new ResourceDAOSysException(e.getMessage());
			}
		}
		return item;
	}

	protected static String[] SEARCH_CATEGORIES_STATEMENT_FRAGMENTS = {
		"SELECT IndexID, Type, ParentID, SortOrder, DateCreated, LastUpdate, IsActive, IsSearchable, SearchKeywords, PropertyNames, PropertyValues FROM TAB_CATEGORY WHERE Deleted <> 1 ",
		"AND ParentID = ? ",
		"AND Type = ? ",
		"AND SearchKeywords = ? ",
		"AND IsSearchable = 1 ",
		"AND IsActive = 1 ",
		"AND DateCreated >= ? ",
		"AND DateCreated < ? "
	};
	
	public Page searchCategories(CategoryCondition condition, int start, int count) throws ResourceDAOSysException {
		Connection conn = null;
		PreparedStatement stmt = null;
		ResultSet rst = null;
		Page page = new Page();

		String sql = SEARCH_CATEGORIES_STATEMENT_FRAGMENTS[0];
		if (condition != null) {
			if (condition.getParentId() != -1)
				sql += SEARCH_CATEGORIES_STATEMENT_FRAGMENTS[1];
			if (condition.getType() != -1)
				sql += SEARCH_CATEGORIES_STATEMENT_FRAGMENTS[2];
			// 注意: SearchKeywords == null的情况下就不需要判断是否ForceToSearch了
			if (condition.getSearchKeywords() != null) {
				sql += SEARCH_CATEGORIES_STATEMENT_FRAGMENTS[3];
				if (!condition.isForceToSearch())
					sql += SEARCH_CATEGORIES_STATEMENT_FRAGMENTS[4];
			}
			if (condition.isActiveOnly())
				sql += SEARCH_CATEGORIES_STATEMENT_FRAGMENTS[5];
			if (condition.getDateCreated() != null)
				sql += SEARCH_CATEGORIES_STATEMENT_FRAGMENTS[6];
			if (condition.getDateCreated2() != null)
				sql += SEARCH_CATEGORIES_STATEMENT_FRAGMENTS[7];
		}
		
		sql += "ORDER BY SortOrder";
		AppLogger.debug("MSSqlCategoryDAO.searchCategories().sql=" + sql);

		try {
			conn = super.getDBConnection();
			stmt = conn.prepareStatement(sql);
			
			// Set condition parameters
			if (condition != null) {
				int index = 1;
				if (condition.getParentId() != -1)
					stmt.setInt(index++, condition.getParentId());
				if (condition.getType() != -1)
					stmt.setInt(index++, condition.getType());
				if (condition.getSearchKeywords() != null)
					stmt.setString(index++, "%" + condition.getSearchKeywords() + "%");
				if (condition.getDateCreated() != null)
					stmt.setString(index++, StringUtils.toString(condition.getDateCreated()));
				if (condition.getDateCreated2() != null)
					stmt.setString(index++, StringUtils.toString(condition.getDateCreated2()));
			}

			rst = stmt.executeQuery();

        	int totalRecords = 0;
        	for (totalRecords = 0; rst.next(); totalRecords ++) {
        		if ((totalRecords >= start) && (totalRecords < (start + count))) {
        			Category item = populateCategoryFormResultSet(rst);
        			page.getItems().add(item);
        		}
        	}
        	page.setTotalRecords(totalRecords);
		} catch (Exception e) {
			AppLogger.debug("MSSqlCategoryDAO.searchCategories().e.getMessage()=" + e.getMessage());

			throw new ResourceDAOSysException(e.getMessage());
		} finally {
			try {
				super.closeResultSet(rst);
				super.closeStatement(stmt);
				super.closeConnection(conn);
			} catch (Exception e) {
				throw new ResourceDAOSysException(e.getMessage());
			}
		}
		return page;
	}

	/**
	 * 专用于生成xml tree
	 * 必须严格按照parentId,sortOrder asc排序方式获取数据
	 * @param type
	 * @return
	 * @throws ResourceDAOSysException
	 */
	public List getCategoriesForXmlTree(int type) throws ResourceDAOSysException {
		Connection conn = null;
		PreparedStatement stmt = null;
		ResultSet rst = null;
		List list = new ArrayList();

		String sql = "SELECT ParentID, IndexID, Type, SortOrder, DateCreated, LastUpdate, IsActive, IsSearchable, SearchKeywords, PropertyNames, PropertyValues "
			+ "FROM TAB_CATEGORY WHERE Type = ? AND Deleted <> 1  AND IsActive = 1 ORDER BY ParentID, SortOrder";
		
		try {
			conn = super.getDBConnection();
			stmt = conn.prepareStatement(sql);
			stmt.setInt(1, type);

			rst = stmt.executeQuery();
			
			while (rst.next()) {
    			Category item = populateCategoryFormResultSet(rst);
    			list.add(item);
			}
		} catch (Exception e) {
			AppLogger.debug("MSSqlCategoryDAO.getCategoriesForXmlTree().e.getMessage()=" + e.getMessage());

			throw new ResourceDAOSysException(e.getMessage());
		} finally {
			try {
				super.closeResultSet(rst);
				super.closeStatement(stmt);
				super.closeConnection(conn);
			} catch (Exception e) {
				throw new ResourceDAOSysException(e.getMessage());
			}
		}
		return list;
	}
	
	public void createCategory(Category item) throws ResourceDAOSysException {
		Connection conn = null;
		PreparedStatement stmt = null;

		String sql = "INSERT INTO TAB_CATEGORY "
			+ "(ParentID, Type, SortOrder, DateCreated, LastUpdate, IsActive, IsSearchable, SearchKeywords, PropertyNames, PropertyValues) "
			+ "VALUES (?,?,?,?,?,?,?,?,?,?)";

		AppLogger.debug("MSSqlCategoryDAO.createCategory().sql=" + sql);

		try {
			conn = super.getDBConnection();
			stmt = conn.prepareStatement(sql);
			fillCategoryParameters(stmt, item, TYPE_ADD);

		    int rowCount = stmt.executeUpdate();
		    
		    if (rowCount != 1)
		    	throw new ResourceDAOSysException("effected row count must be 1");

		} catch (Exception e) {
			AppLogger.debug("MSSqlCategoryDAO.createCategory().e.getMessage()=" + e.getMessage());

			throw new ResourceDAOSysException(e.getMessage());

		} finally {
			try {
				super.closeStatement(stmt);
				super.closeConnection(conn);
			} catch (Exception e) {
				throw new ResourceDAOSysException(e.getMessage());
			}
		}
	}

	public void deleteCategory(int categoryId) throws ResourceDAOSysException {
		// TODO Auto-generated method stub
		
	}

	public void updateCategory(Category item) throws ResourceDAOSysException {
		Connection conn = null;
		PreparedStatement stmt = null;

		String sql = "UPDATE TAB_CATEGORY SET SortOrder = ?, LastUpdate = ?, IsActive = ?, IsSearchable = ?, SearchKeywords = ?, PropertyNames = ?, PropertyValues = ? WHERE IndexID = ?";

		AppLogger.debug("MSSqlCategoryDAO.createCategory().sql=" + sql);

		try {
			conn = super.getDBConnection();
			stmt = conn.prepareStatement(sql);
			fillCategoryParameters(stmt, item, TYPE_UPDATE);

		    int rowCount = stmt.executeUpdate();
		    
		    if (rowCount != 1)
		    	throw new ResourceDAOSysException("effected row count must be 1");

		} catch (Exception e) {
			AppLogger.debug("MSSqlCategoryDAO.updateCategory().e.getMessage()=" + e.getMessage());

			throw new ResourceDAOSysException(e.getMessage());

		} finally {
			try {
				super.closeStatement(stmt);
				super.closeConnection(conn);
			} catch (Exception e) {
				throw new ResourceDAOSysException(e.getMessage());
			}
		}
	}

	protected Category populateCategoryFormResultSet(ResultSet rst) throws SQLException {
		Category item = new Category();

		item.setType(rst.getInt("Type"));

		// Fill section properties.
		DBCommonUtils.populateSectionFormResultSet(rst, item);

		return item;
	}
	
	protected void fillCategoryParameters(PreparedStatement stmt, Category item, int type) throws SQLException {
		int index = 1;
		try {
			if (type == TYPE_ADD) {
				stmt.setInt(index++, item.getParentId());
				stmt.setInt(index++, item.getType());
				stmt.setInt(index++, item.getSortOrder());
				stmt.setString(index++, StringUtils.toString(item.getDateCreated()));
				stmt.setString(index++, StringUtils.toString(item.getLastUpdate()));
				stmt.setBoolean(index++, item.isActive());
				stmt.setBoolean(index++, item.isSearchable());
				stmt.setString(index++, item.getSearchKey());

				// Serialize datas
				SerializeData data = item.deserialize();
				stmt.setString(index++, data.getKeys());
				stmt.setString(index++, data.getValues());

			} else if (type == TYPE_UPDATE) {
				stmt.setInt(index++, item.getSortOrder());
				stmt.setString(index++, StringUtils.toString(item.getLastUpdate()));
				stmt.setBoolean(index++, item.isActive());
				stmt.setBoolean(index++, item.isSearchable());
				stmt.setString(index++, item.getSearchKey());

				// Serialize datas
				SerializeData data = item.deserialize();
				stmt.setString(index++, data.getKeys());
				stmt.setString(index++, data.getValues());

				// indexId
				stmt.setInt(index++, item.getIndexId());
			}
		} catch (SQLException e) {
			throw e;
		}
	}
}