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
154
155
package com.baidu.ueditor.upload;
import com.baidu.ueditor.define.AppInfo;
import com.baidu.ueditor.define.BaseState;
import com.baidu.ueditor.define.State;
import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import org.apache.commons.io.FileUtils;
public class StorageManager {
public static final int BUFFER_SIZE = 8192;
public StorageManager() {
}
public static State saveBinaryFile(byte[] data, String path) {
File file = new File(path);
State state = valid(file);
if (!state.isSuccess()) {
return state;
}
try {
BufferedOutputStream bos = new BufferedOutputStream(
new FileOutputStream(file));
bos.write(data);
bos.flush();
bos.close();
} catch (IOException ioe) {
return new BaseState(false, AppInfo.IO_ERROR);
}
state = new BaseState(true, file.getAbsolutePath());
state.putInfo( "size", data.length );
state.putInfo( "title", file.getName() );
return state;
}
public static State saveFileByInputStream(InputStream is, String path,
long maxSize) {
State state = null;
File tmpFile = getTmpFile();
byte[] dataBuf = new byte[ 2048 ];
BufferedInputStream bis = new BufferedInputStream(is, StorageManager.BUFFER_SIZE);
try {
BufferedOutputStream bos = new BufferedOutputStream(
new FileOutputStream(tmpFile), StorageManager.BUFFER_SIZE);
int count = 0;
while ((count = bis.read(dataBuf)) != -1) {
bos.write(dataBuf, 0, count);
}
bos.flush();
bos.close();
if (tmpFile.length() > maxSize) {
tmpFile.delete();
return new BaseState(false, AppInfo.MAX_SIZE);
}
state = saveTmpFile(tmpFile, path);
if (!state.isSuccess()) {
tmpFile.delete();
}
return state;
} catch (IOException e) {
}
return new BaseState(false, AppInfo.IO_ERROR);
}
public static State saveFileByInputStream(InputStream is, String path) {
State state = null;
File tmpFile = getTmpFile();
byte[] dataBuf = new byte[ 2048 ];
BufferedInputStream bis = new BufferedInputStream(is, StorageManager.BUFFER_SIZE);
try {
BufferedOutputStream bos = new BufferedOutputStream(
new FileOutputStream(tmpFile), StorageManager.BUFFER_SIZE);
int count = 0;
while ((count = bis.read(dataBuf)) != -1) {
bos.write(dataBuf, 0, count);
}
bos.flush();
bos.close();
state = saveTmpFile(tmpFile, path);
if (!state.isSuccess()) {
tmpFile.delete();
}
return state;
} catch (IOException e) {
}
return new BaseState(false, AppInfo.IO_ERROR);
}
private static File getTmpFile() {
File tmpDir = FileUtils.getTempDirectory();
String tmpFileName = (Math.random() * 10000 + "").replace(".", "");
return new File(tmpDir, tmpFileName);
}
private static State saveTmpFile(File tmpFile, String path) {
State state = null;
File targetFile = new File(path);
if (targetFile.canWrite()) {
return new BaseState(false, AppInfo.PERMISSION_DENIED);
}
try {
FileUtils.moveFile(tmpFile, targetFile);
} catch (IOException e) {
return new BaseState(false, AppInfo.IO_ERROR);
}
state = new BaseState(true);
state.putInfo( "size", targetFile.length() );
state.putInfo( "title", targetFile.getName() );
return state;
}
private static State valid(File file) {
File parentPath = file.getParentFile();
if ((!parentPath.exists()) && (!parentPath.mkdirs())) {
return new BaseState(false, AppInfo.FAILED_CREATE_FILE);
}
if (!parentPath.canWrite()) {
return new BaseState(false, AppInfo.PERMISSION_DENIED);
}
return new BaseState(true);
}
}