FileUtil.java
3.17 KB
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
156
157
158
159
160
161
162
163
164
165
166
167
168
169
package com.sunvote.xpadapp.utils;
import com.sunvote.util.LogUtil;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
public class FileUtil {
static String TAG = "FileUtil";
public static byte[] getByteArrayFromFile(String fileName) {
File file = null;
try {
file = new File(fileName);
} catch (Exception e) {
LogUtil.e(TAG,e);
return null;
}
if (!file.exists() || !file.isFile() || !file.canRead()) {
return null;
}
int len = (int) file.length();
byte buffer[] = new byte[len];
try {
FileInputStream fis = new FileInputStream(file);
while (fis.read(buffer) > 0) {
}
fis.close();
} catch (Exception e) {
LogUtil.e(TAG,e);
}
return buffer;
}
public static byte[] getByteArrayFromFile(File file) {
if (!file.exists() || !file.isFile() || !file.canRead()) {
return null;
}
int len = (int) file.length();
byte buffer[] = new byte[len];
try {
FileInputStream fis = new FileInputStream(file);
while (fis.read(buffer) > 0) {
}
fis.close();
} catch (Exception e) {
LogUtil.e(TAG,e);
}
return buffer;
}
public static boolean saveByteArrayToFile(String fileName, byte[] data) {
boolean success = false;
if (null != fileName) {
String name = fileName;
int count = 0;
File file = new File(name);
while (file.exists()) {
count++;
name = fileName + count;
file = new File(name);
}
file.getParentFile().mkdirs();
try {
FileOutputStream fs = new FileOutputStream(fileName);
fs.write(data);
fs.close();
success = true;
} catch (FileNotFoundException e) {
LogUtil.e(TAG,e);
} catch (IOException e) {
LogUtil.e(TAG,e);
}
return success;
} else {
return success;
}
}
public static synchronized void deleteFile(File file) {
if(file == null){
return;
}
if (file.isFile()) {
file.delete();
return;
}
if (file.isDirectory()) {
File[] childFiles = file.listFiles();
if (childFiles == null || childFiles.length == 0) {
file.delete();
return;
}
for (int i = 0; i < childFiles.length; i++) {
deleteFile(childFiles[i]);
}
file.delete();
}
}
public static synchronized void deleteFile(File file,String ignoFile) {
if(file == null){
return;
}
if (file.isFile()) {
if(!file.getName().contains(ignoFile)){
file.delete();
}
return;
}
if (file.isDirectory()) {
File[] childFiles = file.listFiles();
if (childFiles == null || childFiles.length == 0) {
if(!file.getName().contains(ignoFile)){
file.delete();
}
file.delete();
return;
}
for (int i = 0; i < childFiles.length; i++) {
deleteFile(childFiles[i]);
}
if(!file.getName().contains(ignoFile)){
file.delete();
}
}
}
public static void deleteFileInDir(File file) {
if(file == null){
return;
}
if (file.isFile()) {
file.delete();
return;
}
if (file.isDirectory()) {
File[] childFiles = file.listFiles();
if (childFiles == null || childFiles.length == 0) {
return;
}
for (int i = 0; i < childFiles.length; i++) {
deleteFileInDir(childFiles[i]);
}
}
}
}