List of usage examples for android.sax ElementListener ElementListener
ElementListener
From source file:com.gimranov.zandy.app.XMLResponseParser.java
public void parse(int mode, String url, final Database db) { Element entry;//from w w w . j a v a 2 s . c om RootElement root; // we have a different root for indiv. items if (mode == MODE_FEED) { root = new RootElement(ATOM_NAMESPACE, "feed"); entry = root.getChild(ATOM_NAMESPACE, "entry"); } else { // MODE_ITEM, MODE_COLLECTION Log.d(TAG, "Parsing in entry mode"); root = new RootElement(ATOM_NAMESPACE, "entry"); entry = (Element) root; } if (mode == MODE_FEED) { root.getChild(ATOM_NAMESPACE, "link").setStartElementListener(new StartElementListener() { public void start(Attributes attributes) { String rel = ""; String href = ""; int length = attributes.getLength(); // I shouldn't have to walk through, but the namespacing isn't working here for (int i = 0; i < length; i++) { if ("rel".equals(attributes.getQName(i))) rel = attributes.getValue(i); if ("href".equals(attributes.getQName(i))) href = attributes.getValue(i); } // We try to get a parent collection if necessary / possible if (rel.contains("self")) { // Try to get a parent collection int colloc = href.indexOf("/collections/"); int itemloc = href.indexOf("/items"); // Our URL looks like this: // https://api.zotero.org/users/5770/collections/2AJUSIU9/items?content=json if (colloc != -1 && itemloc != -1) { // The string "/collections/" is thirteen characters long String id = href.substring(colloc + 13, itemloc); Log.d(TAG, "Collection key: " + id); parent = ItemCollection.load(id, db); if (parent != null) parent.loadChildren(db); } else { Log.d(TAG, "Key extraction failed from root; maybe this isn't a collection listing?"); } } // If there are more items, queue them up to be handled too if (rel.contains("next")) { Log.d(TAG, "Found continuation: " + href); APIRequest req = new APIRequest(href, "get", null); req.query = href; req.disposition = "xml"; queue.add(req); } } }); } entry.setElementListener(new ElementListener() { public void start(Attributes attributes) { item = new Item(); collection = new ItemCollection(); attachment = new Attachment(); Log.d(TAG, "New entry"); } public void end() { if (items == true) { if (updateKey != null && updateType != null && updateType.equals("item")) { // We have an incoming new version of an item Item existing = Item.load(updateKey, db); if (existing != null) { Log.d(TAG, "Updating newly created item to replace temporary key: " + updateKey + " => " + item.getKey() + ""); item.getKey(); existing.dirty = APIRequest.API_CLEAN; // We need to update the parent key in attachments as well, // so they aren't orphaned after we update the item key here ArrayList<Attachment> atts = Attachment.forItem(existing, db); for (Attachment a : atts) { Log.d(TAG, "Propagating item key replacement to attachment with key: " + a.key); a.parentKey = item.getKey(); a.save(db); } // We can't set the new key until after updating child attachments existing.setKey(item.getKey()); if (!existing.getType().equals("attachment")) existing.save(db); } } else if (updateKey != null && updateType != null && updateType.equals("attachment")) { // We have an incoming new version of an item Attachment existing = Attachment.load(updateKey, db); if (existing != null) { Log.d(TAG, "Updating newly created attachment to replace temporary key: " + updateKey + " => " + attachment.key + ""); existing.dirty = APIRequest.API_CLEAN; // we don't change the ZFS status... existing.key = attachment.key; existing.save(db); } } else { item.dirty = APIRequest.API_CLEAN; attachment.dirty = APIRequest.API_CLEAN; if ((attachment.url != null && !"".equals(attachment.url)) || attachment.content.optInt("linkMode") == Attachment.MODE_IMPORTED_FILE || attachment.content.optInt("linkMode") == Attachment.MODE_IMPORTED_URL) attachment.status = Attachment.AVAILABLE; if (!item.getType().equals("attachment") && !item.getType().equals("note")) { Item oldItem = Item.load(item.getKey(), db); // Check timestamps to see if it's different; if not, we should // stop following the Atom continuation links if (oldItem != null && oldItem.getTimestamp().equals(item.getTimestamp())) { followNext = false; } item.save(db); } else { // Don't touch ZFS status here Attachment existing = Attachment.load(attachment.key, db); if (existing != null) { attachment.status = existing.status; } attachment.save(db); } } if (!item.getType().equals("attachment") && !item.getType().equals("note") && item.getChildren() != null && !item.getChildren().equals("0")) { queue.add(APIRequest.children(item)); Log.d(TAG, "Queued children request for item: " + item.getTitle() + " " + item.getKey()); Log.d(TAG, "Item has children: " + item.getChildren()); } // Add to containing collection if (!item.getType().equals("attachment") && parent != null) parent.add(item, true, db); request.getHandler().onUpdate(request); Log.d(TAG, "Done parsing item entry."); return; } if (!items) { if (updateKey != null && updateType != null && updateType.equals("collection")) { // We have an incoming new version of a collection ItemCollection existing = ItemCollection.load(updateKey, db); if (existing != null) { Log.d(TAG, "Updating newly created collection to replace temporary key: " + updateKey + " => " + collection.getKey() + ""); existing.setKey(collection.getKey()); existing.dirty = APIRequest.API_CLEAN; existing.save(db); } Log.d(TAG, "Done parsing new collection entry."); // We don't need to load again, since a new collection can't be stale return; } ItemCollection ic = ItemCollection.load(collection.getKey(), db); if (ic != null) { if (!ic.getTimestamp().equals(collection.getTimestamp())) { // In this case, we have data, but we should refresh it collection.dirty = APIRequest.API_STALE; } else { // Collection hasn't changed! collection = ic; // We also don't need the next page, if we already saw this one followNext = false; } } else { // This means that we haven't seen the collection before, so it must be // a new one, and we don't have contents for it. collection.dirty = APIRequest.API_MISSING; } Log.d(TAG, "Status: " + collection.dirty + " for " + collection.getTitle()); collection.save(db); Log.d(TAG, "Done parsing a collection entry."); return; } } }); entry.getChild(ATOM_NAMESPACE, "title").setEndTextElementListener(new EndTextElementListener() { public void end(String body) { item.setTitle(body); collection.setTitle(body); attachment.title = body; Log.d(TAG, body); } }); entry.getChild(Z_NAMESPACE, "key").setEndTextElementListener(new EndTextElementListener() { public void end(String body) { item.setKey(body); collection.setKey(body); attachment.key = body; Log.d(TAG, body); } }); entry.getChild(ATOM_NAMESPACE, "updated").setEndTextElementListener(new EndTextElementListener() { public void end(String body) { item.setTimestamp(body); collection.setTimestamp(body); Log.d(TAG, body); } }); entry.getChild(Z_NAMESPACE, "itemType").setEndTextElementListener(new EndTextElementListener() { public void end(String body) { item.setType(body); items = true; Log.d(TAG, body); } }); entry.getChild(Z_NAMESPACE, "numChildren").setEndTextElementListener(new EndTextElementListener() { public void end(String body) { item.setChildren(body); Log.d(TAG, body); } }); entry.getChild(Z_NAMESPACE, "year").setEndTextElementListener(new EndTextElementListener() { public void end(String body) { item.setYear(body); Log.d(TAG, body); } }); entry.getChild(Z_NAMESPACE, "creatorSummary").setEndTextElementListener(new EndTextElementListener() { public void end(String body) { item.setCreatorSummary(body); Log.d(TAG, body); } }); entry.getChild(ATOM_NAMESPACE, "id").setEndTextElementListener(new EndTextElementListener() { public void end(String body) { item.setId(body); collection.setId(body); Log.d(TAG, body); } }); entry.getChild(ATOM_NAMESPACE, "link").setStartElementListener(new StartElementListener() { public void start(Attributes attributes) { String rel = ""; String href = ""; int length = attributes.getLength(); // I shouldn't have to walk through, but the namespacing isn't working here for (int i = 0; i < length; i++) { if ("rel".equals(attributes.getQName(i))) rel = attributes.getValue(i); if ("href".equals(attributes.getQName(i))) href = attributes.getValue(i); } if (rel != null && rel.equals("up")) { int start = href.indexOf("/items/"); // Trying to pull out the key of attachment parent attachment.parentKey = href.substring(start + 7, start + 7 + 8); Log.d(TAG, "Setting parentKey to: " + attachment.parentKey); } else if (rel != null && rel.equals("enclosure")) { attachment.url = href; attachment.status = Attachment.AVAILABLE; Log.d(TAG, "url= " + attachment.url); } else if (rel != null) Log.d(TAG, "rel=" + rel + " href=" + href); } }); entry.getChild(ATOM_NAMESPACE, "content").setStartElementListener(new StartElementListener() { public void start(Attributes attributes) { String etag = attributes.getValue(Z_NAMESPACE, "etag"); item.setEtag(etag); collection.setEtag(etag); attachment.etag = etag; Log.d(TAG, "etag: " + etag); } }); entry.getChild(ATOM_NAMESPACE, "content").setEndTextElementListener(new EndTextElementListener() { public void end(String body) { try { JSONObject obj = new JSONObject(body); try { collection.setParent(obj.getString("parent")); } catch (JSONException e) { Log.d(TAG, "No parent found in JSON content; not a subcollection or not a collection"); } item.setContent(obj); attachment.content = obj; } catch (JSONException e) { Log.e(TAG, "JSON parse exception loading content", e); } Log.d(TAG, body); } }); try { Xml.parse(this.input, Xml.Encoding.UTF_8, root.getContentHandler()); if (parent != null) { parent.saveChildren(db); parent.markClean(); parent.save(db); } db.close(); } catch (Exception e) { Log.e(TAG, "exception loading content", e); Crashlytics.logException(new Exception("Exception parsing data", e)); } }
From source file:com.codebutler.rsp.Playlist.java
public void fetchItems(final FetchItemsProgressListener progressListener) throws Exception { if (mItems != null) throw new Exception("fetchItems() already called!"); mItems = new SortedArrayList<Item>(new Comparator<Item>() { public int compare(Item first, Item second) { return first.getTitle().compareToIgnoreCase(second.getTitle()); }// w w w .jav a 2 s . c o m }); mOrderedArtists = new SortedArrayList<Artist>(new Comparator<Artist>() { public int compare(Artist first, Artist second) { return first.getName().compareToIgnoreCase(second.getName()); } }); mArtists = new HashMap<String, Artist>(); mAlbums = new SortedArrayList<Album>(new Comparator<Album>() { public int compare(Album first, Album second) { return first.getName().compareToIgnoreCase(second.getName()); } }); URL url = mServer.buildUrl("db/" + Integer.toString(mId)); Log.d("FetchItems", url.toString()); DefaultHttpClient client = new DefaultHttpClient(); String password = mServer.getPassword(); if (password != null && password.length() > 0) { UsernamePasswordCredentials creds; creds = new UsernamePasswordCredentials("user", password); client.getCredentialsProvider().setCredentials(AuthScope.ANY, creds); } HttpGet method = new HttpGet(url.toURI()); InputStream stream = client.execute(method).getEntity().getContent(); try { /* <?xml version="1.0" encoding="UTF-8" standalone="yes" ?> <response> <status> <errorcode>0</errorcode> <errorstring></errorstring> <records>0</records> <totalrecords>1</totalrecords> </status> <items> <item> <id>1</id> <title>Rock Robotic (Osx Mix)</title> <artist>Oscillator X</artist> <album>Techno * Techyes</album> <genre>Dance & DJ</genre> <type>mp3</type> <bitrate>192</bitrate> <samplerate>44100</samplerate> <song_length>61440</song_length> <file_size>1474560</file_size> <year>0</year> <track>15</track> <total_tracks>0</total_tracks> <disc>0</disc> <total_discs>0</total_discs> <bpm>0</bpm> <compilation>0</compilation> <rating>0</rating> <play_count>4</play_count> <description>MPEG audio file</description> <time_added>1270096204</time_added> <time_modified>1270078936</time_modified> <time_played>1270156178</time_played> <disabled>0</disabled> <codectype>mpeg</codectype> </item> </items> </response> */ RootElement rootElement = new RootElement("response"); Element itemsElement = rootElement.getChild("items"); Element itemElement = itemsElement.getChild("item"); Element idElement = itemElement.getChild("id"); Element titleElement = itemElement.getChild("title"); Element artistElement = itemElement.getChild("artist"); Element albumElement = itemElement.getChild("album"); Element lengthElement = itemElement.getChild("song_length"); itemElement.setElementListener(new ElementListener() { public void start(Attributes arg0) { mCurrentItem = new Item(Playlist.this); } public void end() { mItems.add(mCurrentItem); // Artist cache String artistName = mCurrentItem.getArtist(); if (artistName != null && artistName.trim().length() > 0) { Artist artist = mArtists.get(artistName); if (artist == null) { artist = new Artist(artistName); mArtists.put(artistName, artist); mOrderedArtists.add(artist); } // Album cache // FIXME: This should support compilation albums! String albumName = mCurrentItem.getAlbum(); if (albumName != null && albumName.trim().length() > 0) { Album album = artist.getAlbum(albumName); if (album == null) { album = new Album(artist, albumName); artist.addAlbum(album); mAlbums.add(album); } album.addItem(mCurrentItem); } } mCurrentItem = null; if (progressListener != null) { if ((mItems.size() % 100) == 0) progressListener.onProgressChange(mItems.size()); } } }); idElement.setEndTextElementListener(new EndTextElementListener() { public void end(String body) { mCurrentItem.setId(Integer.parseInt(body)); } }); titleElement.setEndTextElementListener(new EndTextElementListener() { public void end(String body) { mCurrentItem.setTitle(body); } }); artistElement.setEndTextElementListener(new EndTextElementListener() { public void end(String body) { mCurrentItem.setArtist(body); } }); albumElement.setEndTextElementListener(new EndTextElementListener() { public void end(String body) { mCurrentItem.setAlbum(body); } }); lengthElement.setEndTextElementListener(new EndTextElementListener() { public void end(String body) { mCurrentItem.setDuration(Long.parseLong(body) / 1000); } }); android.util.Xml.parse(stream, Xml.Encoding.UTF_8, rootElement.getContentHandler()); } finally { stream.close(); } }