1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
|
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.tuscany.sca.domain.manager.impl;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.net.URI;
import java.net.URLConnection;
import java.net.URLDecoder;
import java.util.List;
import java.util.logging.Logger;
import javax.servlet.Servlet;
import javax.servlet.ServletException;
import javax.servlet.ServletOutputStream;
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.disk.DiskFileItemFactory;
import org.apache.commons.fileupload.servlet.ServletFileUpload;
import org.osoa.sca.annotations.Init;
import org.osoa.sca.annotations.Property;
import org.osoa.sca.annotations.Reference;
import org.osoa.sca.annotations.Scope;
import org.osoa.sca.annotations.Service;
/**
* Implementation of a servlet component supporting file upload/download.
*
* @version $Rev$ $Date$
*/
@Scope("COMPOSITE")
@Service(Servlet.class)
public class FileServiceImpl extends HttpServlet {
private static final long serialVersionUID = -4560385595481971616L;
private static final Logger logger = Logger.getLogger(FileServiceImpl.class.getName());
@Property
public String directoryName;
@Reference
public DomainManagerConfiguration domainManagerConfiguration;
private ServletFileUpload upload;
/**
* Initialize the component.
*/
@Init
public void initialize() throws IOException {
upload = new ServletFileUpload(new DiskFileItemFactory());
}
@Override
public void doPost(HttpServletRequest request, HttpServletResponse response) throws IOException {
// Upload files
String rootDirectory = domainManagerConfiguration.getRootDirectory();
try {
for (FileItem item: (List<FileItem>)upload.parseRequest(request)) {
if (!item.isFormField()) {
File directory = new File(rootDirectory + "/" + directoryName);
if (!directory.exists()) {
directory.mkdirs();
}
logger.fine("post " + item.getName());
item.write(new File(directory, item.getName()));
}
}
// Redirect to the admin page
response.sendRedirect("/ui/files");
}
catch (Exception e) {
throw new IOException(e.toString());
}
}
@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// Download a file
String requestURI = URLDecoder.decode(request.getRequestURI(), "UTF-8");
String path = requestURI.substring(request.getServletPath().length());
if (path.startsWith("/")) {
path = path.substring(1);
}
logger.fine("get " + path);
try {
// Analyze the given path
URI uri = URI.create(path);
String scheme = uri.getScheme();
if (scheme == null) {
// If no scheme is specified then the path identifies file
// inside our directory
String rootDirectory = domainManagerConfiguration.getRootDirectory();
uri = new File(rootDirectory + "/" + directoryName, path).toURI();
} else if (!scheme.equals("file")) {
// If the scheme does not identify a local file, just redirect to the server
// hosting the file
response.sendRedirect(path);
}
// Read the file and write to response
URLConnection connection = uri.toURL().openConnection();
connection.setUseCaches(false);
connection.connect();
InputStream is = connection.getInputStream();
ServletOutputStream os = response.getOutputStream();
byte[] buffer = new byte[4096];
for (;;) {
int n = is.read(buffer);
if (n < 0) {
break;
}
os.write(buffer, 0, n);
}
is.close();
os.flush();
} catch (FileNotFoundException e) {
response.sendError(HttpServletResponse.SC_NOT_FOUND);
}
}
}
|
