daoas/adressevedligehold/FileUploadServlet.java

package dk.daoas.adressevedligehold;

import java.io.File;
import java.io.IOException;
import java.util.List;

import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.commons.fileupload.FileItem;
import org.apache.commons.fileupload.FileUploadException;
import org.apache.commons.fileupload.disk.DiskFileItemFactory;
import org.apache.commons.fileupload.servlet.ServletFileUpload;

import dk.daoas.adressevedligehold.tasks.TaskManager;


/*
 * TODO: understøt indlæsning af FD
 * TODO: understøt indlæsning af NS
 * TODO: understøt indlæsning af DAO
 */

/**
 * Servlet implementation class FileUploadServlet
 */
@WebServlet("/FileUploadServlet")
public class FileUploadServlet extends HttpServlet {
        private static final long serialVersionUID = 1L;
       
    public FileUploadServlet() {
        super();
    }

    /*
     * https://commons.apache.org/proper/commons-fileupload/using.html
     */
        protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
                // Create a factory for disk-based file items
                DiskFileItemFactory factory = new DiskFileItemFactory();

                // Configure a repository (to ensure a secure temp location is used)
                ServletContext servletContext = this.getServletConfig().getServletContext();
                File repository = (File) servletContext.getAttribute("javax.servlet.context.tempdir");
                
                System.out.println( "Path: " + repository.getPath() );
                
                factory.setRepository(repository);

                // Create a new file upload handler
                ServletFileUpload upload = new ServletFileUpload(factory);

                try {
                        // Parse the request
                        List<FileItem> items = upload.parseRequest(request);
                        
                        if ( items.size() == 0) {
                                System.out.println("No file uploaded");
                                return;
                        }
                        
                        if ( items.size() >1) {
                                System.out.println("Uploaded " + items.size() + " items");
                        }

                        
                        String distributor = null;
                        FileItem item = null;
                        boolean writeback = false;
                        
                        for (FileItem i : items) {
                                
                                
                                if (i.isFormField()) {
                                        System.out.println("FormField: " + i.getFieldName() + "=" + i.getString() );
                                        
                                        switch (i.getFieldName().toLowerCase()) {
                                        case "distributor":
                                                distributor = i.getString();
                                                break;
                                        case "writeback":
                                                writeback = Boolean.parseBoolean( i.getString() );
                                                break;
                                        }
                                        
                                } else {
                                        System.out.println("received " + i.getSize() + " bytes in " + i.getName() + " " + i.getContentType());
                                        item = i;
                                }                               
                        }
                        
                        if (item == null) {
                                System.out.println("No file uploaded");
                                return;
                        }
                        if (distributor == null || distributor.equals("")) {
                                item.delete();
                                return;
                        }
                        
        
                        distributor = distributor.toUpperCase();
                        
                        AddressSource source = null;
                        
                        switch (distributor) {
                        case "BK":
                                source = new AddressSourceBK( item );
                                break;                          
                        default:
                                System.out.println("Unknown distributor: " + distributor);
                                item.delete();
                                return;
                        }
                        
                        TaskManager taskManager = (TaskManager) this.getServletContext().getAttribute(TaskManager.TASKMANAGER);
                        AddressTask task = new AddressTask(source, writeback);
                        taskManager.submitTask(task);
                        
                                                
                }
                catch (FileUploadException fue) {
                        System.out.println("UploadException: " + fue.getMessage() );
                        
                }
                catch (Exception e) {
                        throw new ServletException(e);
                }
                
                response.getWriter().write("OK");
        }

}
1	package dk.daoas.adressevedligehold;
2
3	import java.io.File;
4	import java.io.IOException;
5	import java.util.List;
6
7	import javax.servlet.ServletContext;
8	import javax.servlet.ServletException;
9	import javax.servlet.annotation.WebServlet;
10	import javax.servlet.http.HttpServlet;
11	import javax.servlet.http.HttpServletRequest;
12	import javax.servlet.http.HttpServletResponse;
13
14	import org.apache.commons.fileupload.FileItem;
15	import org.apache.commons.fileupload.FileUploadException;
16	import org.apache.commons.fileupload.disk.DiskFileItemFactory;
17	import org.apache.commons.fileupload.servlet.ServletFileUpload;
18
19	import dk.daoas.adressevedligehold.tasks.TaskManager;
20
21
22	/*
23	* TODO: understøt indlæsning af FD
24	* TODO: understøt indlæsning af NS
25	* TODO: understøt indlæsning af DAO
26	*/
27
28	/**
29	* Servlet implementation class FileUploadServlet
30	*/
31	@WebServlet("/FileUploadServlet")
32	public class FileUploadServlet extends HttpServlet {
33	private static final long serialVersionUID = 1L;
34
35	public FileUploadServlet() {
36	super();
37	}
38
39	/*
40	* https://commons.apache.org/proper/commons-fileupload/using.html
41	*/
42	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
43	// Create a factory for disk-based file items
44	DiskFileItemFactory factory = new DiskFileItemFactory();
45
46	// Configure a repository (to ensure a secure temp location is used)
47	ServletContext servletContext = this.getServletConfig().getServletContext();
48	File repository = (File) servletContext.getAttribute("javax.servlet.context.tempdir");
49
50	System.out.println( "Path: " + repository.getPath() );
51
52	factory.setRepository(repository);
53
54	// Create a new file upload handler
55	ServletFileUpload upload = new ServletFileUpload(factory);
56
57	try {
58	// Parse the request
59	List<FileItem> items = upload.parseRequest(request);
60
61	if ( items.size() == 0) {
62	System.out.println("No file uploaded");
63	return;
64	}
65
66	if ( items.size() >1) {
67	System.out.println("Uploaded " + items.size() + " items");
68	}
69
70
71	String distributor = null;
72	FileItem item = null;
73	boolean writeback = false;
74
75	for (FileItem i : items) {
76
77
78	if (i.isFormField()) {
79	System.out.println("FormField: " + i.getFieldName() + "=" + i.getString() );
80
81	switch (i.getFieldName().toLowerCase()) {
82	case "distributor":
83	distributor = i.getString();
84	break;
85	case "writeback":
86	writeback = Boolean.parseBoolean( i.getString() );
87	break;
88	}
89
90	} else {
91	System.out.println("received " + i.getSize() + " bytes in " + i.getName() + " " + i.getContentType());
92	item = i;
93	}
94	}
95
96	if (item == null) {
97	System.out.println("No file uploaded");
98	return;
99	}
100	if (distributor == null \|\| distributor.equals("")) {
101	item.delete();
102	return;
103	}
104
105
106
107	distributor = distributor.toUpperCase();
108
109	AddressSource source = null;
110
111	switch (distributor) {
112	case "BK":
113	source = new AddressSourceBK( item );
114	break;
115	default:
116	System.out.println("Unknown distributor: " + distributor);
117	item.delete();
118	return;
119	}
120
121	TaskManager taskManager = (TaskManager) this.getServletContext().getAttribute(TaskManager.TASKMANAGER);
122	AddressTask task = new AddressTask(source, writeback);
123	taskManager.submitTask(task);
124
125
126
127	}
128	catch (FileUploadException fue) {
129	System.out.println("UploadException: " + fue.getMessage() );
130
131	}
132	catch (Exception e) {
133	throw new ServletException(e);
134	}
135
136	response.getWriter().write("OK");
137	}
138
139	}