blob: ddf2d457290d1744f3f74a696fe73e378419826f (
plain)
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
|
package de.podfetcher.service;
import de.podfetcher.storage.DownloadRequester;
import de.podfetcher.feed.*;
import de.podfetcher.R;
import android.content.Context;
import android.app.DownloadManager;
import android.util.Log;
import android.database.Cursor;
import java.util.concurrent.Callable;
import android.os.AsyncTask;
/** Observes the status of a specific Download */
public class DownloadObserver extends AsyncTask<FeedFile, Integer, Boolean> {
private static final String TAG = "DownloadObserver";
/** Types of downloads to observe. */
public static final int TYPE_FEED = 0;
public static final int TYPE_IMAGE = 1;
public static final int TYPE_MEDIA = 2;
/** Error codes */
public static final int ALREADY_DOWNLOADED = 1;
public static final int NO_DOWNLOAD_FOUND = 2;
private final long DEFAULT_WAITING_INTERVALL = 1000L;
private int progressPercent;
private int statusMsg;
private int reason;
private DownloadRequester requester;
private FeedFile feedfile;
private Context context;
public DownloadObserver(Context context) {
super();
this.context = context;
}
protected Boolean doInBackground(FeedFile... files) {
Log.d(TAG, "Background Task started.");
feedfile = files[0];
if (feedfile.getFile_url() == null) {
reason = NO_DOWNLOAD_FOUND;
return Boolean.valueOf(false);
}
if (feedfile.isDownloaded()) {
reason = ALREADY_DOWNLOADED;
return Boolean.valueOf(false);
}
while(true) {
Cursor cursor = getDownloadCursor();
int status = getDownloadStatus(cursor, DownloadManager.COLUMN_STATUS);
int progressPercent = getDownloadProgress(cursor);
switch(status) {
case DownloadManager.STATUS_SUCCESSFUL:
statusMsg = R.string.download_successful;
return Boolean.valueOf(true);
case DownloadManager.STATUS_RUNNING:
statusMsg = R.string.download_running;
break;
case DownloadManager.STATUS_FAILED:
statusMsg = R.string.download_failed;
requester.notifyDownloadService(context);
return Boolean.valueOf(false);
case DownloadManager.STATUS_PENDING:
statusMsg = R.string.download_pending;
break;
}
publishProgress(progressPercent);
try {
Thread.sleep(DEFAULT_WAITING_INTERVALL);
} catch (InterruptedException e) {
Log.w(TAG, "Thread was interrupted while waiting.");
}
}
}
public Cursor getDownloadCursor() {
DownloadManager.Query query = buildQuery(feedfile.getDownloadId());
DownloadManager manager = (DownloadManager) context.getSystemService(Context.DOWNLOAD_SERVICE);
Cursor result = manager.query(query);
return result;
}
public int getDownloadStatus(Cursor c, String column) {
if(c.moveToFirst()) {
int status = c.getInt(c.getColumnIndex(column));
return status;
} else {
return -1;
}
}
private int getDownloadProgress(Cursor c) {
if (c.moveToFirst()) {
long size = c.getLong(c.getColumnIndex(DownloadManager.COLUMN_TOTAL_SIZE_BYTES));
long soFar = c.getLong(c.getColumnIndex(DownloadManager.COLUMN_BYTES_DOWNLOADED_SO_FAR));
int progress = (int) (((double) soFar / (double) size) * 100);
Log.d(TAG, "Setting progress to " + progress);
return progress;
} else {
return -1;
}
}
private DownloadManager.Query buildQuery(long id) {
DownloadManager.Query query = new DownloadManager.Query();
query.setFilterById(id);
return query;
}
public int getProgressPercent() {
return progressPercent;
}
public int getStatusMsg() {
return statusMsg;
}
public Context getContext() {
return context;
}
}
|
