Java tutorial
/* * Copyright 2013 Department of Computer Science and Technology, Guangxi University * * Permission is hereby granted, free of charge, to any person obtaining * a copy of this software and associated documentation files (the * "Software"), to deal in the Software without restriction, including * without limitation the rights to use, copy, modify, merge, publish, * distribute, sublicense, and/or sell copies of the Software, and to * permit persons to whom the Software is furnished to do so, subject to * the following conditions: * * The above copyright notice and this permission notice shall be * included in all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ package gxu.software_engineering.market.android.util; import org.json.JSONArray; import org.json.JSONException; import org.json.JSONObject; import android.content.ContentResolver; import android.content.ContentValues; import android.content.Intent; import android.util.Log; import java.io.IOException; /** * ? * * @author longkai() * @email im.longkai@gmail.com * @since 2013-6-23 */ public class ServiceHelper { public static final int CATEGORIES = 1; public static final int LASTEST_USERS = 2; public static final int LASTEST_ITEMS = 3; public static final int HOTTEST_ITEMS = 4; public static final int USER_ITEMS = 5; public static final int CATEGORY_ITEMS = 6; public static final int USER_CLOSED_ITEMS = 7; public static final int USER_DEAL_ITEMS = 8; public static void pre(Intent intent) { int target = intent.getIntExtra(C.TARGET_ENTITY, -1); long uid = Long.MIN_VALUE; long cid = Long.MIN_VALUE; switch (target) { case CATEGORIES: intent.putExtra(C.HTTP_URI, C.DOMAIN + "/categories"); break; case LASTEST_USERS: intent.putExtra(C.HTTP_URI, C.DOMAIN + "/users?type=1&count=50"); break; case LASTEST_ITEMS: intent.putExtra(C.HTTP_URI, C.DOMAIN + "/items?type=1&count=50"); break; case HOTTEST_ITEMS: intent.putExtra(C.HTTP_URI, C.DOMAIN + "/items?type=6&count=20"); break; case USER_ITEMS: uid = intent.getLongExtra(C.UID, -1); intent.putExtra(C.HTTP_URI, C.DOMAIN + String.format("/items?type=4&count=%d&uid=%d&deal=0&last_id=0", C.DEFAULT_LIST_SIZE, uid)); break; case CATEGORY_ITEMS: cid = intent.getLongExtra(C.CID, -1); intent.putExtra(C.HTTP_URI, C.DOMAIN + String.format("/items?type=5&count=%d&cid=%d&last_id=0", C.DEFAULT_LIST_SIZE, cid)); break; case USER_CLOSED_ITEMS: uid = intent.getLongExtra(C.UID, -1); intent.putExtra(C.HTTP_URI, C.DOMAIN + String.format("/items?type=7&count=%d&uid=%d&last_id=0", C.DEFAULT_LIST_SIZE, uid)); break; case USER_DEAL_ITEMS: uid = intent.getLongExtra(C.UID, uid); intent.putExtra(C.HTTP_URI, C.DOMAIN + String.format("/items?type=4&count=%d&uid=%d&deal=1", C.DEFAULT_LIST_SIZE, uid)); break; default: throw new IllegalArgumentException("sorry, 404 for the target[" + target + "]"); } } public static void doing(ContentResolver contentResolver, Intent intent) throws JSONException { String httpUri = intent.getStringExtra(C.HTTP_URI); Log.i("http uri", httpUri); JSONObject data = null; try { data = RESTMethod.get(httpUri); } catch (IOException e) { e.printStackTrace(); } Log.i("json result", data.toString()); JSONArray array = null; ContentValues[] items = null; switch (intent.getIntExtra(C.TARGET_ENTITY, -1)) { case CATEGORIES: array = data.getJSONArray(C.CATEGORIES); ContentValues[] categories = Processor.toCategories(array); contentResolver.bulkInsert(intent.getData(), categories); break; case LASTEST_USERS: array = data.getJSONArray(C.USERS); ContentValues[] users = Processor.toUsers(array); contentResolver.bulkInsert(intent.getData(), users); break; case LASTEST_ITEMS: array = data.getJSONArray(C.ITEMS); items = Processor.toItems(array); contentResolver.bulkInsert(intent.getData(), items); break; case HOTTEST_ITEMS: array = data.getJSONArray(C.ITEMS); items = Processor.toItems(array); contentResolver.bulkInsert(intent.getData(), items); break; case USER_ITEMS: array = data.getJSONArray(C.ITEMS); items = Processor.toItems(array); contentResolver.bulkInsert(intent.getData(), items); break; case CATEGORY_ITEMS: array = data.getJSONArray(C.ITEMS); items = Processor.toItems(array); contentResolver.bulkInsert(intent.getData(), items); break; case USER_CLOSED_ITEMS: array = data.getJSONArray(C.ITEMS); items = Processor.toItems(array); contentResolver.bulkInsert(intent.getData(), items); break; case USER_DEAL_ITEMS: array = data.getJSONArray(C.ITEMS); items = Processor.toItems(array); contentResolver.bulkInsert(intent.getData(), items); break; default: throw new IllegalArgumentException("sorry, 404 for the target!"); } } }