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
|
package eu.siacs.conversations.persistance;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.net.Uri;
import android.util.Log;
import android.util.LruCache;
import eu.siacs.conversations.entities.Account;
import eu.siacs.conversations.entities.Conversation;
import eu.siacs.conversations.entities.Message;
import eu.siacs.conversations.services.XmppConnectionService;
import eu.siacs.conversations.xmpp.jingle.JingleFile;
public class FileBackend {
private static int IMAGE_SIZE = 1920;
private Context context;
private LruCache<String, Bitmap> thumbnailCache;
public FileBackend(Context context) {
this.context = context;
int maxMemory = (int) (Runtime.getRuntime().maxMemory() / 1024);
int cacheSize = maxMemory / 8;
thumbnailCache = new LruCache<String, Bitmap>(cacheSize) {
@Override
protected int sizeOf(String key, Bitmap bitmap) {
return bitmap.getByteCount() / 1024;
}
};
}
public JingleFile getJingleFile(Message message) {
Conversation conversation = message.getConversation();
String prefix = context.getFilesDir().getAbsolutePath();
String path = prefix + "/" + conversation.getAccount().getJid() + "/"
+ conversation.getContactJid();
String filename = message.getUuid() + ".webp";
return new JingleFile(path + "/" + filename);
}
private Bitmap resize(Bitmap originalBitmap, int size) {
int w = originalBitmap.getWidth();
int h = originalBitmap.getHeight();
if (Math.max(w, h) > size) {
int scalledW;
int scalledH;
if (w <= h) {
scalledW = (int) (w / ((double) h / size));
scalledH = size;
} else {
scalledW = size;
scalledH = (int) (h / ((double) w / size));
}
Bitmap scalledBitmap = Bitmap.createScaledBitmap(originalBitmap,
scalledW, scalledH, true);
return scalledBitmap;
} else {
return originalBitmap;
}
}
public JingleFile copyImageToPrivateStorage(Message message, Uri image) {
try {
InputStream is = context.getContentResolver()
.openInputStream(image);
JingleFile file = getJingleFile(message);
file.getParentFile().mkdirs();
file.createNewFile();
OutputStream os = new FileOutputStream(file);
Bitmap originalBitmap = BitmapFactory.decodeStream(is);
is.close();
Bitmap scalledBitmap = resize(originalBitmap, IMAGE_SIZE);
boolean success = scalledBitmap.compress(
Bitmap.CompressFormat.WEBP, 75, os);
if (!success) {
// Log.d("xmppService", "couldnt compress");
}
os.close();
return file;
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return null;
}
public Bitmap getImageFromMessage(Message message) {
return BitmapFactory.decodeFile(getJingleFile(message)
.getAbsolutePath());
}
public Bitmap getThumbnailFromMessage(Message message, int size)
throws FileNotFoundException {
Bitmap thumbnail = thumbnailCache.get(message.getUuid());
if (thumbnail == null) {
Bitmap fullsize = BitmapFactory.decodeFile(getJingleFile(message)
.getAbsolutePath());
if (fullsize == null) {
throw new FileNotFoundException();
}
thumbnail = resize(fullsize, size);
this.thumbnailCache.put(message.getUuid(), thumbnail);
}
return thumbnail;
}
public void removeFiles(Conversation conversation) {
String prefix = context.getFilesDir().getAbsolutePath();
String path = prefix + "/" + conversation.getAccount().getJid() + "/"
+ conversation.getContactJid();
File file = new File(path);
try {
this.deleteFile(file);
} catch (IOException e) {
Log.d("xmppService",
"error deleting file: " + file.getAbsolutePath());
}
}
private void deleteFile(File f) throws IOException {
if (f.isDirectory()) {
for (File c : f.listFiles())
deleteFile(c);
}
f.delete();
}
}
|
