fileuploadbean.java

仿照著名的petstore写的网上书店

/* Copyright 2006 Sun Microsystems, Inc. All rights reserved. You may not modify, use, reproduce, or distribute this software except in compliance with the terms of the License at: http://developer.sun.com/berkeley_license.html
$Id: FileUploadBean.java,v 1.51 2007/01/16 22:48:28 inder Exp $ */

package com.sun.javaee.blueprints.petstore.controller;


import java.io.File;
import java.io.IOException;
import java.util.logging.Level;
import javax.faces.context.FacesContext;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import javax.faces.context.ResponseWriter;
import javax.faces.model.SelectItem;
import org.apache.shale.remoting.faces.ResponseFactory;
import com.sun.javaee.blueprints.petstore.util.PetstoreUtil;
import com.sun.javaee.blueprints.petstore.util.PetstoreConstants;
import com.sun.javaee.blueprints.petstore.util.ImageScaler;
import com.sun.javaee.blueprints.components.ui.fileupload.FileUploadStatus;
import com.sun.javaee.blueprints.components.ui.fileupload.FileUploadUtil;
import com.sun.javaee.blueprints.petstore.proxy.GeoCoder;
import com.sun.javaee.blueprints.petstore.proxy.GeoPoint;

import com.sun.javaee.blueprints.petstore.model.Address;
import com.sun.javaee.blueprints.petstore.model.CatalogFacade;
import com.sun.javaee.blueprints.petstore.model.Category;
import com.sun.javaee.blueprints.petstore.model.Product;
import com.sun.javaee.blueprints.petstore.model.FileUploadResponse;
import com.sun.javaee.blueprints.petstore.model.Item;
import com.sun.javaee.blueprints.petstore.model.Tag;
import com.sun.javaee.blueprints.petstore.model.SellerContactInfo;
import java.math.BigDecimal;
import java.math.MathContext;
import java.util.ArrayList;
import java.util.Hashtable;
import java.util.List;
import java.util.Map;
import java.util.StringTokenizer;

public class FileUploadBean {
    private boolean bDebug=false;
    private static final String comma=", ";
    private List<SelectItem> categories = null;
    private List<SelectItem> products = null;
    private CatalogFacade catalogFacade = null;
    
    /**
     * <p>Factory for response writers that we can use to construct the
     * outgoing response.</p>
     */
    private static ResponseFactory factory = new ResponseFactory();
    
    /**
     * session attribute to contain the fileupload status
     */
    private static final String FILE_UL_RESPONSE = "fileuploadResponse";
    
    /** Creates a new instance of FileUploadBean */
    public FileUploadBean() {
    }
    
    public void setProducts(List<SelectItem> products) {
        this.products = products;
    }
    public List<SelectItem> getProducts() {
        if (catalogFacade == null) {
            Map<String,Object> contextMap = FacesContext.getCurrentInstance().getExternalContext().getApplicationMap();
            this.catalogFacade = (CatalogFacade)contextMap.get("CatalogFacade");
        }
        //get the catalog facade
        if (products == null) {
            products = new ArrayList<SelectItem>();
            for (Product pd : catalogFacade.getProducts()) {
                products.add(new SelectItem(pd.getProductID(), pd.getName()));
            }
        }
        return this.products;
    }
    public void setCategories(List<SelectItem> categories) {
        this.categories = categories;
    }
    
    public List<SelectItem> getCategories() {
        if (catalogFacade == null) {
            Map<String,Object> contextMap = FacesContext.getCurrentInstance().getExternalContext().getApplicationMap();
            this.catalogFacade = (CatalogFacade)contextMap.get("CatalogFacade");
        }
        //get the catalog facade
        if (categories == null) {
            categories = new ArrayList<SelectItem>();
            for (Category cat : catalogFacade.getCategories()) {
                categories.add(new SelectItem(cat.getCategoryID(), cat.getName()));
            }
        }
        return this.categories;
    }
    
    public void postProcessingMethod(FacesContext context, Hashtable htUpload, FileUploadStatus status) {
        if(bDebug) System.out.println("IN Custom Post Processing method");
        try {
            // set custom return enabled so Phaselistener knows not to send default response
            status.enableCustomReturn();
            HttpServletResponse response=(HttpServletResponse)context.getExternalContext().getResponse();
            
            // get proxy host and port from servlet context
            String proxyHost=context.getExternalContext().getInitParameter("proxyHost");
            String proxyPort=context.getExternalContext().getInitParameter("proxyPort");
            
            // Acquire a response containing these results
            ResponseWriter writer = factory.getResponseWriter(context, "text/xml");
            
            String itemId = null;
            String name = null;
            String thumbPath = null;
            String firstName = null;
            String prodId = null;
            HttpSession session = (HttpSession)context.getExternalContext().getSession(true);
            try {
                String fileNameKey = null;
                for (Object key1 : htUpload.keySet()) {
                    String key = key1.toString();
                    if(key.startsWith("fileLocation_")) {
                        fileNameKey = key;
                        break;
                    }
                }
                if(fileNameKey == null) {
                    // error, you must have and upload file
                    sendErrorResponse(response, writer, PetstoreUtil.getMessage("invalid_item_imageurl"));
                    return;
                }
                
                String absoluteFileName=getStringValue(htUpload, fileNameKey);
                if(bDebug) System.out.println("Abs name: "+ absoluteFileName);
                String fileName = null;
                if(absoluteFileName.length() > 0) {
                    int lastSeparator = absoluteFileName.lastIndexOf("/") + 1;
                    if (lastSeparator != -1) {
                        // set to proper location so image can be read
                        fileName = "images/" + absoluteFileName.substring(lastSeparator, absoluteFileName.length());
                    }
                    String spath = constructThumbnail(absoluteFileName);
                    thumbPath = null;
                    if (spath != null) {
                        // recreate "images/FILENAME"
                        int idx = spath.lastIndexOf(System.getProperty("file.separator"));
                        thumbPath = "images/"+spath.substring(idx+1, spath.length());
                    }
                } else{
                    fileName = "images/dragon-iron-med.jpg";
                    thumbPath = "images/dragon-iron-thumb.jpg ";
                }
                
                String compName=getStringValue(htUpload, FileUploadUtil.COMPONENT_NAME);
                prodId=getStringValue(htUpload, compName+":product");
                name=getStringValue(htUpload, compName+":name");
                String desc=getStringValue(htUpload, compName+":description");
                String price=getStringValue(htUpload, compName+":price");
                // set to negative to trigger validation message for price
                if(price.length() == 0) price="-1";
                
                String tags=getStringValue(htUpload, compName+":tags");
                if(tags == null) tags="";
                
                //Address
                StringBuffer addressx=new StringBuffer();
                String street1=getStringValue(htUpload, compName+":street1");
                String city=getStringValue(htUpload, compName+":cityField");
                String state=getStringValue(htUpload, compName+":stateField");
                String zip=getStringValue(htUpload, compName+":zipField");
                
                // Contact info
                firstName = getStringValue(htUpload, compName+":firstName");
                String lastName = getStringValue(htUpload, compName+":lastName");
                String email = getStringValue(htUpload, compName+":email");
                
                if(street1 != null && street1.length() > 0) {
                    addressx.append(street1);
                }
                
                if(city != null && city.length() > 0) {
                    addressx.append(comma);
                    addressx.append(city);
                }
                
                if(state != null && state.length() > 0) {
                    addressx.append(comma);
                    addressx.append(state);
                }
                
                if(zip != null && zip.length() > 0) {
                    addressx.append(comma);
                    addressx.append(zip);
                }
                
                // get latitude & longitude
                GeoCoder geoCoder=new GeoCoder();
                if(proxyHost != null && proxyPort != null) {
                    // set proxy host and port if it exists
                    // NOTE: This may require write permissions for java.util.PropertyPermission to be granted
                    PetstoreUtil.getLogger().log(Level.INFO, "Setting proxy to " + proxyHost + ":" + proxyPort + ".  Make sure server.policy is updated to allow setting System Properties");
                    geoCoder.setProxyHost(proxyHost);
                    try {
                        geoCoder.setProxyPort(Integer.parseInt(proxyPort));
                    } catch (NumberFormatException ee) {