Java tutorial
/******************************************************************************* * Copyright 2011, 2012, 2013 fanfou.com, Xiaoke, Zhang * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. *******************************************************************************/ package com.fanfou.app.opensource.api; import java.io.IOException; import java.io.StringReader; import java.util.ArrayList; import java.util.Date; import java.util.List; import java.util.Set; import java.util.regex.Matcher; import java.util.regex.Pattern; import org.apache.http.HttpResponse; import org.apache.http.util.EntityUtils; import org.json.JSONArray; import org.json.JSONException; import org.json.JSONObject; import org.xmlpull.v1.XmlPullParser; import org.xmlpull.v1.XmlPullParserException; import org.xmlpull.v1.XmlPullParserFactory; import android.content.ContentValues; import android.database.Cursor; import android.text.Html; import android.util.Log; import com.fanfou.app.opensource.AppContext; import com.fanfou.app.opensource.api.bean.Search; import com.fanfou.app.opensource.api.bean.Storable; import com.fanfou.app.opensource.http.ResponseCode; import com.fanfou.app.opensource.http.SimpleResponse; import com.fanfou.app.opensource.util.DateTimeHelper; /** * @author mcxiaoke * @version 1.0 2011.05.04 * @version 1.1 2011.05.15 * @version 1.2 2011.05.17 * @version 1.3 2011.10.19 * @version 1.4 2011.11.11 * @version 1.5 2011.11.15 * @version 1.6 2011.11.23 * @version 1.7 2011.12.01 * @version 1.8 2011.12.16 * */ public final class ApiParser implements ResponseCode { public static final String TAG = "Parser"; public static final String ID = "id"; public static final String NAME = "name"; public static final String SCREEN_NAME = "screen_name"; public static final String LOCATION = "location"; public static final String GENDER = "gender"; public static final String BIRTHDAY = "birthday"; public static final String DESCRIPTION = "description"; public static final String PROFILE_IMAGE_URL = "profile_image_url"; public static final String URL = "url"; public static final String PROTECTED = "protected"; public static final String FOLLOWERS_COUNT = "followers_count"; public static final String FRIENDS_COUNT = "friends_count"; public static final String FAVORITES_COUNT = "favourites_count"; public static final String STATUSES_COUNT = "statuses_count"; public static final String FOLLOWING = "following"; public static final String NOTIFICATIONS = "notifications"; public static final String CREATED_AT = "created_at"; public static final String UTC_OFFSET = "utc_offset"; public static final String TEXT = "text"; public static final String SOURCE = "source"; public static final String TRUNCATED = "truncated"; public static final String IN_REPLY_TO_LASTMSG_ID = "in_reply_to_lastmsg_id"; public static final String IN_REPLY_TO_USER_ID = "in_reply_to_user_id"; public static final String IN_REPLY_TO_STATUS_ID = "in_reply_to_status_id"; public static final String FAVORITED = "favorited"; public static final String IN_REPLY_TO_SCREEN_NAME = "in_reply_to_screen_name"; public static final String SENDER_ID = "sender_id"; public static final String RECIPIENT_ID = "recipient_id"; public static final String SENDER_SCREEN_NAME = "sender_screen_name"; public static final String RECIPIENT_SCREEN_NAME = "recipient_screen_name"; public static final String SENDER = "sender"; public static final String RECIPIENT = "recipient"; public static final String USER = "user"; public static final String STATUS = "status"; public static final String PHOTO = "photo"; public static final String PHOTO_IMAGEURL = "imageurl"; public static final String PHOTO_THUMBURL = "thumburl"; public static final String PHOTO_LARGEURL = "largeurl"; public static final String QUERY = "query"; public static final String TRENDS = "trends"; public static final String TREND = "trend"; public static final String AS_OF = "as_of"; public static final String REQUEST = "request"; public static final String ERROR = "error"; static final Pattern PATTERN_SOURCE = Pattern.compile("<a href.+blank\">(.+)</a>"); /** * @param s * ? * @return ?Date */ public static Date date(final String s) { return DateTimeHelper.fanfouStringToDate(s); } public static long decodeMessageRealId(final String id) { return 0; } public static long decodeStatusRealId(final String id) { return 0; } public static long decodeUserRealId(final String id) { return 0; } public static String error(final HttpResponse response) throws ApiException { try { final String content = EntityUtils.toString(response.getEntity()); if (AppContext.DEBUG) { Log.v("Parser", "error() content=" + content); } if (content == null) { return null; } return ApiParser.error(content); } catch (final IOException e) { if (AppContext.DEBUG) { e.printStackTrace(); } return null; } } public static String error(final String error) { if (AppContext.DEBUG) { Log.v(ApiParser.TAG, "Parser.error() error=" + error); } String result = error; try { final JSONObject o = new JSONObject(error); if (o.has("error")) { result = o.getString("error"); } } catch (final JSONException e) { if (AppContext.DEBUG) { e.printStackTrace(); } result = ApiParser.parseXMLError(error); } return result; } /** * Date??? * * @param date * Date * @return ?? */ public static String formatDate(final Date date) { return DateTimeHelper.formatDate(date); } public static void handleJSONException(final JSONException e) throws ApiException { if (AppContext.DEBUG) { Log.e(ApiParser.TAG, e.getMessage()); } throw new ApiException(ResponseCode.ERROR_JSON_EXCEPTION, e.getMessage(), e.getCause()); } public static ArrayList<String> ids(final JSONArray a) throws IOException { final ArrayList<String> ids = new ArrayList<String>(); if (a == null) { return ids; } try { for (int i = 0; i < a.length(); i++) { ids.add(a.getString(i)); } return ids; } catch (final JSONException e) { if (AppContext.DEBUG) { e.printStackTrace(); } } return ids; } public static ArrayList<String> ids(final SimpleResponse r) throws IOException { return ApiParser.ids(r.getJSONArray()); } public static ArrayList<String> ids(final String content) throws IOException { try { final JSONArray a = new JSONArray(content); return ApiParser.ids(a); } catch (final JSONException e) { if (AppContext.DEBUG) { e.printStackTrace(); } } return new ArrayList<String>(); } public static boolean parseBoolean(final Cursor c, final String columnName) { return c.getInt(c.getColumnIndex(columnName)) == 1; } public static Date parseDate(final Cursor c, final String columnName) { return new Date(c.getLong(c.getColumnIndex(columnName))); } public static int parseInt(final Cursor c, final String columnName) { return c.getInt(c.getColumnIndex(columnName)); } public static long parseLong(final Cursor c, final String columnName) { return c.getLong(c.getColumnIndex(columnName)); } public static String parseSource(final String input) { String source = input; final Matcher m = ApiParser.PATTERN_SOURCE.matcher(input); if (m.find()) { source = m.group(1); } // Log.e("SourceParse", "source="+source); return source; } public static String parseString(final Cursor c, final String columnName) { try { return c.getString(c.getColumnIndexOrThrow(columnName)); } catch (final IllegalArgumentException e) { if (AppContext.DEBUG) { e.printStackTrace(); } } return null; } public static String parseXMLError(final String error) { String result = error; XmlPullParser pull; String tag = null; try { pull = XmlPullParserFactory.newInstance().newPullParser(); pull.setInput(new StringReader(error)); boolean found = false; while (!found) { final int eventType = pull.getEventType(); switch (eventType) { case XmlPullParser.START_TAG: tag = pull.getName(); if (tag.equalsIgnoreCase("error")) { result = pull.nextText(); } break; case XmlPullParser.END_TAG: if (tag.equalsIgnoreCase("error")) { found = true; } break; default: break; } pull.next(); } } catch (final XmlPullParserException e) { if (AppContext.DEBUG) { e.printStackTrace(); } } catch (final IOException e) { if (AppContext.DEBUG) { e.printStackTrace(); } } return result; } public static Search savedSearch(final JSONObject o) throws IOException { try { final Search s = new Search(); s.name = o.getString(ApiParser.NAME); s.query = o.getString(ApiParser.QUERY); return s; } catch (final JSONException e) { if (AppContext.DEBUG) { Log.e(ApiParser.TAG, e.getMessage()); } } return null; } public static Search savedSearch(final SimpleResponse r) throws IOException { return ApiParser.savedSearch(r.getJSONObject()); } public static Search savedSearch(final String content) throws IOException { try { final JSONObject o = new JSONObject(content); return ApiParser.savedSearch(o); } catch (final JSONException e) { if (AppContext.DEBUG) { Log.e(ApiParser.TAG, e.getMessage()); } } return null; } public static ArrayList<Search> savedSearches(final JSONArray a) throws IOException { try { final ArrayList<Search> ss = new ArrayList<Search>(); for (int i = 0; i < a.length(); i++) { final JSONObject o = a.getJSONObject(i); final Search s = ApiParser.savedSearch(o); ss.add(s); } return ss; } catch (final JSONException e) { if (AppContext.DEBUG) { Log.e(ApiParser.TAG, e.getMessage()); } } return new ArrayList<Search>(); } public static ArrayList<Search> savedSearches(final SimpleResponse r) throws IOException { return ApiParser.savedSearches(r.getJSONArray()); } public static List<Search> savedSearches(final String content) throws IOException { try { final JSONArray a = new JSONArray(content); return ApiParser.savedSearches(a); } catch (final JSONException e) { if (AppContext.DEBUG) { Log.e(ApiParser.TAG, e.getMessage()); } } return new ArrayList<Search>(); } /** * ??ContentValues Array * * @param <T> * @param t * @return */ public static <T> ContentValues[] toContentValuesArray(final List<? extends Storable<T>> t) { if ((t == null) || (t.size() == 0)) { return null; } final ContentValues[] values = new ContentValues[t.size()]; for (int i = 0; i < t.size(); i++) { values[i] = t.get(i).toContentValues(); } return values; } public static <T> ContentValues[] toContentValuesArray(final Set<? extends Storable<T>> t) { if ((t == null) || (t.size() == 0)) { return null; } final ArrayList<Storable<T>> s = new ArrayList<Storable<T>>(); s.addAll(t); return ApiParser.toContentValuesArray(s); // ArrayList<ContentValues> values=new ArrayList<ContentValues>(); // Iterator<? extends Storable<T>> i=t.iterator(); // while (i.hasNext()) { // Storable<T> st=i.next(); // values.add(st.toContentValues()); // } // return (ContentValues[]) values.toArray(new // ContentValues[values.size()]); } /** * ??ContentValues List * * @param <T> * @param t * @return */ public static <T> List<ContentValues> toContentValuesList(final List<? extends Storable<T>> t) { if ((t == null) || (t.size() == 0)) { return null; } final List<ContentValues> values = new ArrayList<ContentValues>(); for (final Storable<?> s : t) { values.add(s.toContentValues()); } return values; } public static Search trend(final JSONObject o) throws IOException { try { final Search t = new Search(); t.name = Html.fromHtml(o.getString(ApiParser.NAME)).toString(); t.query = Html.fromHtml(o.getString(ApiParser.QUERY)).toString(); return t; } catch (final JSONException e) { if (AppContext.DEBUG) { e.printStackTrace(); } } return null; } public static Search trend(final SimpleResponse r) throws IOException { return ApiParser.trend(r.getJSONObject()); } public static Search trend(final String content) throws IOException { try { final JSONObject o = new JSONObject(content); return ApiParser.trend(o); } catch (final JSONException e) { if (AppContext.DEBUG) { e.printStackTrace(); } } return null; } public static ArrayList<Search> trends(final JSONObject o) throws IOException { final ArrayList<Search> ts = new ArrayList<Search>(); try { final JSONArray a = o.getJSONArray(ApiParser.TRENDS); for (int i = 0; i < a.length(); i++) { final Search t = ApiParser.trend(a.getJSONObject(i)); ts.add(t); } } catch (final JSONException e) { if (AppContext.DEBUG) { Log.e(ApiParser.TAG, e.getMessage()); } } return ts; } public static ArrayList<Search> trends(final SimpleResponse r) throws IOException { return ApiParser.trends(r.getJSONObject()); } public static ArrayList<Search> trends(final String content) throws IOException { try { final JSONObject o = new JSONObject(content); return ApiParser.trends(o); } catch (final JSONException e) { if (AppContext.DEBUG) { Log.e(ApiParser.TAG, e.getMessage()); } } return new ArrayList<Search>(); } }