package com.cattong.weibo.impl.netease;
import static com.cattong.commons.util.ParseUtil.escapeAngleBrackets;
import static com.cattong.commons.util.ParseUtil.getBoolean;
import static com.cattong.commons.util.ParseUtil.getDate;
import static com.cattong.commons.util.ParseUtil.getInt;
import static com.cattong.commons.util.ParseUtil.getRawString;
import java.text.ParseException;
import java.util.ArrayList;
import java.util.List;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import com.cattong.commons.LibException;
import com.cattong.commons.LibResultCode;
import com.cattong.commons.PagableList;
import com.cattong.commons.ServiceProvider;
import com.cattong.commons.util.ParseUtil;
import com.cattong.commons.util.StringUtil;
import com.cattong.entity.Location;
import com.cattong.entity.Status;
import com.cattong.entity.User;
import com.cattong.weibo.Emotions;
class NetEaseStatusAdaptor {
private static final Pattern IMAGE_URL_PATTERN = Pattern.compile("http://126\\.fm/[a-zA-Z0-9]+");
/**
* 从JSON字符串创建Status对象
*
* @param jsonString
* JSON字符串
* @return Status对象
* @throws LibException
*/
public static Status createStatus(String jsonString) throws LibException {
try {
JSONObject json = new JSONObject(jsonString);
return createStatus(json);
} catch (JSONException e) {
throw new LibException(LibResultCode.JSON_PARSE_ERROR);
}
}
/**
* 从JSON字符串创建Status列表
*
* @param jsonString
* JSON字符串
* @return Status对象列表
* @throws LibException
*/
public static List<Status> createStatusList(String jsonString) throws LibException {
try {
if ("[]".equals(jsonString) || "{}".equals(jsonString)) {
return new ArrayList<Status>(0);
}
JSONArray jsonList = new JSONArray(jsonString);
int size = jsonList.length();
ArrayList<Status> statusList = new ArrayList<Status>(size);
for (int i = 0; i < size; i++) {
statusList.add(createStatus(jsonList.getJSONObject(i)));
}
return statusList;
} catch (JSONException e) {
throw new LibException(LibResultCode.JSON_PARSE_ERROR);
}
}
/**
* 从JSON字符串创建Status列表
*
* @param jsonString
* JSON字符串
* @return Status对象列表
* @throws LibException
*/
public static List<Status> createStatusListFromTopRetweets(String jsonString) throws LibException {
try {
if ("[]".equals(jsonString) || "{}".equals(jsonString)) {
return new ArrayList<Status>(0);
}
JSONArray jsonList = new JSONArray(jsonString);
int size = jsonList.length();
ArrayList<Status> statusList = new ArrayList<Status>(size);
JSONObject json = null;
for (int i = 0; i < size; i++) {
json = jsonList.getJSONObject(i);
statusList.add(createStatus(json.getJSONObject("status")));
}
return statusList;
} catch (JSONException e) {
throw new LibException(LibResultCode.JSON_PARSE_ERROR);
}
}
public static PagableList<Status> createPagableStatusList(String jsonString) throws LibException {
try {
if ("[]".equals(jsonString) || "{}".equals(jsonString)) {
return new PagableList<Status>(0, 0, 0);
}
JSONObject json = new JSONObject(jsonString);
JSONArray jsonList = json.getJSONArray("statuses");
int size = jsonList.length();
long nextCursor = json.getLong("cursor_id");
PagableList<Status> statusList = new PagableList<Status>(size, -1, nextCursor);
for (int i = 0; i < size; i++) {
statusList.add(createStatus(jsonList.getJSONObject(i)));
}
return statusList;
} catch (JSONException e) {
throw new LibException(LibResultCode.JSON_PARSE_ERROR);
}
}
/**
* 从JSON对象创建Status对象，包级别访问控制
*
* @param json
* JSON对象
* @return Status对象
* @throws LibException
*/
static Status createStatus(JSONObject json) throws LibException {
try {
Status status = new Status();
String id = ParseUtil.getRawString("cursor_id", json);
if (StringUtil.isEmpty(id)) {
id = ParseUtil.getRawString("id", json);
}
status.setStatusId(id);
status.setServiceProvider(ServiceProvider.NetEase);
status.setText(Emotions.normalizeEmotion(ServiceProvider.NetEase,
escapeAngleBrackets(getRawString("text", json))));
status.setSource(getRawString("source", json));
status.setCreatedAt(getDate("created_at", json));
status.setTruncated(getBoolean("truncated", json));
status.setInReplyToStatusId(getRawString("in_reply_to_status_id", json));
//status.setInReplyToUserId(getRawString("in_reply_to_user_id", json));
status.setFavorited(getBoolean("favorited", json));
//status.setInReplyToScreenName(getRawString("in_reply_to_user_name", json));
status.setRetweetCount(getInt("retweet_count", json));
status.setCommentCount(getInt("comments_count", json));
if (!json.isNull("user")) {
status.setUser(NetEaseUserAdaptor.createUser(json.getJSONObject("user")));
}
if (!json.isNull("geo")) {
JSONObject geo = json.getJSONObject("geo");
//String type = geo.getString("type"); //Point ...
JSONArray coordinates = geo.getJSONArray("coordinates");
double latitude = coordinates.getDouble(0);
double longitude = coordinates.getDouble(1);
Location location = new Location(latitude, longitude);
status.setLocation(location);
}
if (StringUtil.isNotEmpty(status.getInReplyToStatusId())) {
Status retweet = new Status();
User user = new User();
/**
* 获取Timeline接口返回的报文里，既有root开头的字段，又有in_reply开头的字段，
* 这里取原始微博（root开头的字段）。
*/
retweet.setStatusId(getRawString("root_in_reply_to_status_id", json));
retweet.setText(Emotions.normalizeEmotion(ServiceProvider.NetEase,
getRawString("root_in_reply_to_status_text", json)));
/**
* 单次转发时，root_in_reply_to_user_id和in_reply_to_user_id一样，都是原微博作者id;
* 多次转发时，root_in_reply_to_user_id是原微博作者，这里都设成原微博作者id
*/
user.setUserId(getRawString("root_in_reply_to_user_id", json));
user.setScreenName(getRawString("root_in_reply_to_user_name", json));
user.setName(getRawString("root_in_reply_to_screen_name", json));
retweet.setServiceProvider(ServiceProvider.NetEase);
user.setServiceProvider(ServiceProvider.NetEase);
retweet.setUser(user);
extractImageUrl(retweet);
status.setRetweetedStatus(retweet);
}
extractImageUrl(status);
return status;
} catch (JSONException e) {
throw new LibException(LibResultCode.JSON_PARSE_ERROR);
} catch (ParseException e) {
throw new LibException(LibResultCode.DATE_PARSE_ERROR);
}
}
/**
* 解析出微博内容中的图片
*
* @param status
*/
public static void extractImageUrl(Status status) {
if (status == null || StringUtil.isEmpty(status.getText())) {
return;
}
Matcher matcher = IMAGE_URL_PATTERN.matcher(status.getText());
String imageUrl = null;
StringBuffer normalized = new StringBuffer();
while (matcher.find()) {
imageUrl = matcher.group();
matcher.appendReplacement(normalized, "");
status.setThumbnailPictureUrl(imageUrl);
status.setMiddlePictureUrl(imageUrl);
status.setOriginalPictureUrl(imageUrl);
}
matcher.appendTail(normalized);
status.setText(normalized.length() > 0 ? normalized.toString() : "分享图片");
}
/**
* 从JSON字符串创建Status列表
*
* @param jsonString
* JSON字符串
* @return Status对象列表
* @throws LibException
*/
public static List<Status> createStatusSearchResultList(String jsonString) throws LibException {
List<Status> statuses = null;
if (StringUtil.isEmpty(jsonString)) {
return statuses;
}
if ("[]".equals(jsonString)||"{}".equals(jsonString)) {
statuses = new ArrayList<Status>(0);
return statuses;
}
try {
JSONObject jsonObject = new JSONObject(jsonString);
if (!jsonObject.isNull("results")) {
JSONArray jsonList = jsonObject.getJSONArray("results");
int size = jsonList.length();
statuses = new ArrayList<Status>(size);
for (int i = 0; i < size; i++) {
JSONObject json = jsonList.getJSONObject(i);
Status status = new Status();
status.setServiceProvider(ServiceProvider.NetEase);
status.setStatusId(getRawString("id", json));
status.setText((Emotions.normalizeEmotion(
ServiceProvider.NetEase, getRawString("text", json))));
status.setSource(getRawString("source", json));
status.setCreatedAt(getDate("created_at", json));
User user = new User();
user.setServiceProvider(ServiceProvider.NetEase);
user.setUserId(getRawString("from_user_id",json));
user.setScreenName(getRawString("from_user_name", json));
user.setName(getRawString("from_user", json));
user.setProfileImageUrl(getRawString("profile_image_url", json));
status.setUser(user);
NetEaseStatusAdaptor.extractImageUrl(status);
if (!json.isNull("to_status_id")) {
Status retweet = new Status();
retweet.setServiceProvider(ServiceProvider.NetEase);
retweet.setStatusId(getRawString("to_status_id", json));
String text = getRawString("to_status_text", json);
retweet.setText(Emotions.normalizeEmotion(ServiceProvider.NetEase, text));
User rtUser = new User();
rtUser.setServiceProvider(ServiceProvider.NetEase);
rtUser.setUserId(getRawString("to_user_id", json));
rtUser.setScreenName(getRawString("to_user_name", json));
rtUser.setName(getRawString("to_user", json));
retweet.setUser(rtUser);
NetEaseStatusAdaptor.extractImageUrl(retweet);
status.setRetweetedStatus(retweet);
}
statuses.add(status);
}
}
} catch (JSONException e) {
throw new LibException(LibResultCode.JSON_PARSE_ERROR);
} catch (ParseException e) {
throw new LibException(LibResultCode.DATE_PARSE_ERROR);
}
return statuses;
}
}