housestylecontroller.java

一个购房管理系统,JSF+Hibernate+Mssql2

/*
 * HousestyleController.java
 *
 * Created on 2007��5��29��, ����2:59
 *
 * To change this template, choose Tools | Template Manager
 * and open the template in the editor.
 */

package com.housesale.jsfbean;

import java.io.IOException;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;

import javax.faces.application.FacesMessage;
import javax.faces.context.FacesContext;
import javax.faces.model.DataModel;
import javax.faces.model.ListDataModel;
import javax.faces.model.SelectItem;
import javax.servlet.http.HttpServletRequest;

import org.apache.myfaces.custom.fileupload.UploadedFile;
import org.hibernate.Query;

import com.housesale.hibernate.Building;
import com.housesale.hibernate.HouseStyle;
import com.housesale.hibernate.dao.HouseStyleDAO;

/**
 * 
 * @author MSQ
 */
public class HouseStyleController {

	/** Creates a new instance of HousestyleController */
	public HouseStyleController() {
	}

	private HouseStyle housestyle;

	private UploadedFile image;

	private String detailUrl;
	
	private DataModel model;

	private HouseStyleDAO getEntityManager() {
		HouseStyleDAO.initialize();
		return new HouseStyleDAO();
	}

	private int batchSize = 10;

	private int firstItem = 0;

	private String queryProperty;

	private String queryValue;

	private int itemCount = 0;

	public DataModel getModel() {
		return model;
	}

	public void setModel(DataModel model) {
		this.model = model;
	}

	public String getQueryProperty() {
		return queryProperty;
	}

	public void setQueryProperty(String queryProperty) {
		this.queryProperty = queryProperty;
	}

	public String getQueryValue() {
		return queryValue;
	}

	public void setQueryValue(String queryValue) {
		this.queryValue = queryValue;
	}

	public void setItemCount(int itemCount) {
		this.itemCount = itemCount;
	}

	public HouseStyle getHousestyle() {
		return housestyle;
	}

	public void setHousestyle(HouseStyle housestyle) {
		this.housestyle = housestyle;
	}

	public DataModel getDetailHousestyles() {
		return model;
	}

	public void setDetailHousestyles(Collection<HouseStyle> m) {
		model = new ListDataModel(new ArrayList(m));
	}

	public String createSetup() {
		this.housestyle = new HouseStyle();
		this.housestyle.setStyleId(0);
		return "housestyle_create";
	}

	public String create() {

		try {

			getEntityManager().save(housestyle);

			addSuccessMessage("Housestyle was successfully created.");
		} catch (Exception ex) {
			try {
				addErrorMessage(ex.getLocalizedMessage());

			} catch (Exception e) {
				addErrorMessage(e.getLocalizedMessage());
			}
		}
		return "housestyle_list";
	}

	public String detailSetup() {
		
		FacesContext facesContext=FacesContext.getCurrentInstance();
		StringBuffer host=((HttpServletRequest)facesContext.getExternalContext().getRequest()).getRequestURL();	
		String str=host.substring(0, host.lastIndexOf("/"));
		str=str.substring(0, str.lastIndexOf("/")+1);
		this.setDetailUrl(str);
		
		setHousestyleFromRequestParam();
		return "housestyle_detail";
	}

	public String editSetup() {
		setHousestyleFromRequestParam();
		return "housestyle_edit";
	}

	public String edit() {

		try {

			getEntityManager().update(housestyle);

			addSuccessMessage("Housestyle was successfully updated.");
		} catch (Exception ex) {
			try {
				addErrorMessage(ex.getLocalizedMessage());

			} catch (Exception e) {
				addErrorMessage(e.getLocalizedMessage());
			}
		}
		return "housestyle_list";
	}

	public String destroy() {

		try {

			HouseStyle housestyle = getHousestyleFromRequestParam();
			getEntityManager().delete(housestyle);

			addSuccessMessage("Housestyle was successfully deleted.");
		} catch (Exception ex) {
			try {
				addErrorMessage(ex.getLocalizedMessage());

			} catch (Exception e) {
				addErrorMessage(e.getLocalizedMessage());
			}
		}
		return "housestyle_list";
	}

	public HouseStyle getHousestyleFromRequestParam() {

		HouseStyle o = null;
		try {
			o = (HouseStyle) model.getRowData();
			o = getEntityManager().get(o.getStyleId());

		} finally {
			return o;
		}
	}

	public void setHousestyleFromRequestParam() {
		HouseStyle housestyle = getHousestyleFromRequestParam();
		setHousestyle(housestyle);
	}

	public String findHouseStyles() {

		Query q = null;
		if (this.queryProperty.equals("building.buildingId")
				|| this.queryProperty.equals("styleId")) {
			try {
				Integer.valueOf(getQueryValue());
			} catch (NumberFormatException e) {
				addErrorMessage(e.getLocalizedMessage());
				return "housestyle_list";
			}
			q = this.getEntityManager().findByProperty(getQueryProperty(),
					Integer.valueOf(getQueryValue()));
		} else if (this.queryProperty.equals("all")) {
			q = this.getEntityManager().getQuery("from HouseStyle as o");
		} else {
			q = this.getEntityManager().findByProperty(getQueryProperty(),
					getQueryValue());
		}
		List list = q.list();
		this.setItemCount(list.size());
		q.setMaxResults(batchSize);
		q.setFirstResult(firstItem);		
		model = new ListDataModel(q.list());
		this.getEntityManager().closeCurrentSession();
		return "housestyle_list";
	}

	public static void addErrorMessage(String msg) {
		FacesMessage facesMsg = new FacesMessage(FacesMessage.SEVERITY_ERROR,
				msg, msg);
		FacesContext fc = FacesContext.getCurrentInstance();
		fc.addMessage(null, facesMsg);
	}

	public static void addSuccessMessage(String msg) {
		FacesMessage facesMsg = new FacesMessage(FacesMessage.SEVERITY_INFO,
				msg, msg);
		FacesContext fc = FacesContext.getCurrentInstance();
		fc.addMessage("successInfo", facesMsg);
	}

	public HouseStyle findHousestyle(Integer id) {

		HouseStyle o = null;
		try {
			o = (HouseStyle) getEntityManager().get(id);

		} finally {
			return o;
		}
	}

	public javax.faces.model.SelectItem[] getBuildingIDs() {

		SelectItem select[] = null;
		try {
			List<Building> l = (List<Building>) getEntityManager().getQuery(
					"from Building as o").list();
			select = new SelectItem[l.size()];
			int i = 0;
			for (Building x : l) {
				select[i++] = new SelectItem(x,x.getBuildingName());
			}

		} finally {
			return select;
		}
	}

	public int getItemCount() {

		return this.itemCount;

	}

	public int getFirstItem() {
		return firstItem;
	}

	public int getLastItem() {
		int size = getItemCount();
		return firstItem + batchSize > size ? size : firstItem + batchSize;
	}

	public int getBatchSize() {
		return batchSize;
	}

	public String next() {
		if (firstItem + batchSize < getItemCount()) {
			firstItem += batchSize;
		}
		return findHouseStyles();
	}

	public String prev() {
		firstItem -= batchSize;
		if (firstItem < 0) {
			firstItem = 0;
		}
		return findHouseStyles();
	}

	public UploadedFile getImage() {
		return this.image;
	}

	public void setImage(UploadedFile image) {
		this.image = image;
		if (image != null)
			try {
				this.housestyle.setImage(image.getBytes());
			} catch (IOException e) {
				addErrorMessage(e.getLocalizedMessage());
			}

	}

	public String getDetailUrl() {
		return detailUrl;
	}

	public void setDetailUrl(String detailUrl) {
		this.detailUrl = detailUrl;
	}

}