@Override
public void handleItemList(IItemListHandler handler, long syncTime)
throws IOException, ReaderException {
// http://www.google.com/reader/api/0/stream/contents/user%2F-%2Fstate%2Fcom.google%2Fread?client=newsplus&output=json&ck=1276066665822&n=20&r=n
Reader in = null;
try {
long startTime = handler.startTime();
in = readStreamContents(syncTime, startTime, handler, null);
String continuation = parseItemList(in, handler);
int limit = handler.limit();
int max = limit > SYNC_MAX_ITEMS ? SYNC_MAX_ITEMS : limit;
int count = 1; // continuation count
while ((limit == 0 || limit > max * count)
&& handler.continuation()
&& continuation != null
&& continuation.length() > 0) {
in.close();
in = readStreamContents(syncTime, startTime, handler, continuation);
continuation = parseItemList(in, handler);
count++;
}
} catch (JsonParseException e) {
e.printStackTrace();
throw new ReaderException("data parse error", e);
} catch (RemoteException e) {
e.printStackTrace();
throw new ReaderException("remote connection error", e);
} finally {
if (in != null) in.close(); // ensure resources get cleaned up timely
}
}
// NOTE: /api/0/stream/contents
private Reader readStreamContents(
long syncTime, long startTime, IItemListHandler handler, String continuation)
throws IOException, ReaderException, RemoteException {
initAuth();
StringBuilder buff = new StringBuilder(URL_API_STREAM_CONTENTS.length() + 128);
buff.append(URL_API_STREAM_CONTENTS);
String stream = handler.stream();
if (stream != null) {
if (stream.equals(STATE_READING_LIST)) stream = STATE_GOOGLE_READING_LIST;
else if (stream.equals(STATE_STARRED)) stream = STATE_GOOGLE_STARRED;
buff.append("/").append(Utils.encode(stream));
}
buff.append("?client=newsplus&ck=").append(syncTime);
if (handler.excludeRead()) {
buff.append("&xt=").append(STATE_GOOGLE_READ);
}
if (continuation != null && continuation.length() > 0) {
buff.append("&c=").append(continuation);
}
if (startTime > 0) {
buff.append("&ot=").append(startTime);
}
int limit = handler.limit();
limit = (limit > SYNC_MAX_ITEMS || limit == 0) ? SYNC_MAX_ITEMS : limit;
if (limit > 0) {
// google only allows max 1000 at once
buff.append("&n=").append(limit > SYNC_MAX_ITEMS ? SYNC_MAX_ITEMS : limit);
}
buff.append("&r=").append(handler.newestFirst() ? "n" : "o");
return doGetReader(buff.toString());
}
private String parseItemList(Reader in, IItemListHandler handler)
throws JsonParseException, IOException, RemoteException {
JsonFactory f = new JsonFactory();
JsonParser jp = f.createParser(in);
long length = 0;
String currName;
String mediaUrl = null;
String mediaType = null;
IItem entry = null;
String continuation = null;
List<IItem> itemList = new ArrayList<IItem>();
List<String> excludedSubs = handler.excludedStreams(); // excluded subscriptions
jp.nextToken(); // will return JsonToken.START_OBJECT (verify?)
while (jp.nextToken() != JsonToken.END_OBJECT) {
currName = jp.getCurrentName();
jp.nextToken(); // move to value, or START_OBJECT/START_ARRAY
if ("continuation".equals(currName)) {
continuation = jp.getText();
} else if ("items".equals(currName)) { // contains an object
// start items
while (jp.nextToken() != JsonToken.END_ARRAY) {
// request stop
// if (handler.requestStop()) throw new JsonParseException(null, null);
if (jp.getCurrentToken() == JsonToken.START_OBJECT) {
entry = new IItem();
} else if (jp.getCurrentToken() == JsonToken.END_OBJECT) {
if (entry != null && entry.uid.length() > 0) {
if (length + entry.getLength() > MAX_TRANSACTION_LENGTH) {
handler.items(itemList, STRATEGY_INSERT_DEFAULT);
itemList.clear();
length = 0;
}
itemList.add(entry);
length += entry.getLength();
}
if (itemList.size() % 200 == 0
|| length
> MAX_TRANSACTION_LENGTH) { // avoid TransactionTooLargeException, android only
// allows 1mb
handler.items(itemList, STRATEGY_INSERT_DEFAULT);
itemList.clear();
length = 0;
}
entry = null;
}
currName = jp.getCurrentName();
if (currName == null || entry == null) continue;
jp.nextToken(); // move to value
if (currName.equals("id")) {
entry.uid = stripItemUid(jp.getText());
} else if (currName.equals("crawlTimeMsec")) {
entry.updatedTime = Long.valueOf(jp.getText()) / 1000;
} else if (currName.equals("title")) {
entry.title = Utils.stripTags(unEscapeEntities(jp.getText()), true);
} else if (currName.equals("categories")) {
while (jp.nextToken() != JsonToken.END_ARRAY) {
String category = jp.getText();
if (category != null && addUserLabel(category, entry)) {
entry.addTag(category);
}
if (category != null && category.endsWith("/state/com.google/read")) {
entry.read = true;
}
}
} else if (currName.equals("published")) {
entry.publishedTime = jp.getLongValue();
} else if (currName.equals("alternate")) {
while (jp.nextToken() != JsonToken.END_ARRAY) {
currName = jp.getCurrentName();
if (currName == null) continue;
jp.nextToken();
if (currName.equals("href")) {
entry.link = jp.getText();
} else {
jp.skipChildren();
}
}
} else if (currName.equals("enclosure")) {
while (jp.nextToken() != JsonToken.END_ARRAY) {
currName = jp.getCurrentName();
if (currName == null) continue;
jp.nextToken();
if (currName.equals("href")) {
mediaUrl = jp.getText();
} else if (currName.equals("type")) {
mediaType = jp.getText();
if (mediaType.startsWith("image")) {
entry.addImage(mediaUrl, mediaType);
} else if (mediaType.startsWith("video")) {
entry.addVideo(mediaUrl, mediaType);
} else if (mediaType.startsWith("audio")) {
entry.addAudio(mediaUrl, mediaType);
}
mediaUrl = null;
mediaType = null;
} else {
jp.skipChildren();
}
}
} else if (currName.equals("summary") || currName.equals("content")) {
while (jp.nextToken() != JsonToken.END_OBJECT) {
currName = jp.getCurrentName();
if (currName == null) continue;
jp.nextToken();
if (currName.equals("content")) {
entry.content = unEscapeEntities(jp.getText());
} else {
jp.skipChildren();
}
}
} else if (currName.equals("author")) {
entry.author = jp.getText();
} else if (currName.equals("origin")) {
while (jp.nextToken() != JsonToken.END_OBJECT) {
currName = jp.getCurrentName();
if (currName == null) continue;
jp.nextToken();
if (currName.equals("streamId")) {
String streamId = jp.getText();
if (streamId != null
&& (excludedSubs == null || !excludedSubs.contains(streamId))) {
entry.subUid = streamId;
} else entry = null;
} else {
jp.skipChildren();
}
}
} else {
jp.skipChildren();
}
}
handler.items(itemList, STRATEGY_INSERT_DEFAULT);
itemList.clear();
} else {
jp.skipChildren();
}
}
return continuation;
}