adressevedligehold/fileupload/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	torben	2838	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	torben	2840
22			/*
23			* TODO: understøt indlæsning af FD
24			* TODO: understøt indlæsning af NS
25			* TODO: understøt indlæsning af DAO
26			*/
27
28	torben	2838	/**
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			}