1 | /* |
2 | * Tomdroid |
3 | * Tomboy on Android |
4 | * http://www.launchpad.net/tomdroid |
5 | * |
6 | * Copyright 2008, 2009, 2010 Olivier Bilodeau <olivier@bottomlesspit.org> |
7 | * |
8 | * This file is part of Tomdroid. |
9 | * |
10 | * Tomdroid is free software: you can redistribute it and/or modify |
11 | * it under the terms of the GNU General Public License as published by |
12 | * the Free Software Foundation, either version 3 of the License, or |
13 | * (at your option) any later version. |
14 | * |
15 | * Tomdroid is distributed in the hope that it will be useful, |
16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
18 | * GNU General Public License for more details. |
19 | * |
20 | * You should have received a copy of the GNU General Public License |
21 | * along with Tomdroid. If not, see <http://www.gnu.org/licenses/>. |
22 | */ |
23 | package org.tomdroid.util; |
24 | |
25 | import java.io.StringReader; |
26 | |
27 | import javax.xml.parsers.SAXParser; |
28 | import javax.xml.parsers.SAXParserFactory; |
29 | |
30 | import org.tomdroid.ui.Tomdroid; |
31 | import org.tomdroid.xml.NoteContentHandler; |
32 | import org.xml.sax.InputSource; |
33 | |
34 | import android.os.Handler; |
35 | import android.os.Message; |
36 | import android.text.SpannableStringBuilder; |
37 | import android.util.Log; |
38 | |
39 | public class NoteContentBuilder implements Runnable { |
40 | |
41 | public static final int PARSE_OK = 0; |
42 | public static final int PARSE_ERROR = 1; |
43 | |
44 | private InputSource noteContentIs; |
45 | |
46 | // this is what we are building here |
47 | private SpannableStringBuilder noteContent = new SpannableStringBuilder(); |
48 | |
49 | private final String TAG = "NoteContentBuilder"; |
50 | |
51 | // thread related |
52 | private Thread runner; |
53 | private Handler parentHandler; |
54 | |
55 | public NoteContentBuilder () {} |
56 | |
57 | public NoteContentBuilder setCaller(Handler parent) { |
58 | |
59 | parentHandler = parent; |
60 | return this; |
61 | } |
62 | |
63 | public NoteContentBuilder setInputSource(String nc) { |
64 | |
65 | String noteContent = "<note-content>"+nc+"</note-content>"; |
66 | noteContentIs = new InputSource(new StringReader(noteContent)); |
67 | return this; |
68 | } |
69 | |
70 | public SpannableStringBuilder build() { |
71 | |
72 | runner = new Thread(this); |
73 | runner.start(); |
74 | return noteContent; |
75 | } |
76 | |
77 | public void run() { |
78 | |
79 | boolean successful = true; |
80 | |
81 | try { |
82 | // Parsing |
83 | // XML |
84 | // Get a SAXParser from the SAXPArserFactory |
85 | SAXParserFactory spf = SAXParserFactory.newInstance(); |
86 | |
87 | // trashing the namespaces but keep prefixes (since we don't have the xml header) |
88 | spf.setFeature("http://xml.org/sax/features/namespaces", false); |
89 | spf.setFeature("http://xml.org/sax/features/namespace-prefixes", true); |
90 | SAXParser sp = spf.newSAXParser(); |
91 | |
92 | if (Tomdroid.LOGGING_ENABLED) Log.v(TAG, "parsing note"); |
93 | sp.parse(noteContentIs, new NoteContentHandler(noteContent)); |
94 | } catch (Exception e) { |
95 | e.printStackTrace(); |
96 | // TODO handle error in a more granular way |
97 | Log.e(TAG, "There was an error parsing the note."); |
98 | successful = false; |
99 | } |
100 | |
101 | warnHandler(successful); |
102 | } |
103 | |
104 | private void warnHandler(boolean successful) { |
105 | |
106 | // notify the main UI that we are done here (sending an ok along with the note's title) |
107 | Message msg = Message.obtain(); |
108 | if (successful) { |
109 | msg.what = PARSE_OK; |
110 | } else { |
111 | |
112 | msg.what = PARSE_ERROR; |
113 | } |
114 | |
115 | parentHandler.sendMessage(msg); |
116 | } |
117 | } |