src/weibo4android/IDs.java

   1 /*
   2 Copyright (c) 2007-2009, Yusuke Yamamoto
   3 All rights reserved.
   4
   5 Redistribution and use in source and binary forms, with or without
   6 modification, are permitted provided that the following conditions are met:
   7     * Redistributions of source code must retain the above copyright
   8       notice, this list of conditions and the following disclaimer.
   9     * Redistributions in binary form must reproduce the above copyright
  10       notice, this list of conditions and the following disclaimer in the
  11       documentation and/or other materials provided with the distribution.
  12     * Neither the name of the Yusuke Yamamoto nor the
  13       names of its contributors may be used to endorse or promote products
  14       derived from this software without specific prior written permission.
  15
  16 THIS SOFTWARE IS PROVIDED BY Yusuke Yamamoto ``AS IS'' AND ANY
  17 EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  18 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  19 DISCLAIMED. IN NO EVENT SHALL Yusuke Yamamoto BE LIABLE FOR ANY
  20 DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  21 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  22 LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  23 ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  24 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  25 SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  26 */
  27 package weibo4android;
  28
  29 import java.util.Arrays;
  30
  31 import org.w3c.dom.Element;
  32 import org.w3c.dom.NodeList;
  33
  34 import weibo4android.http.Response;
  35 import weibo4android.org.json.JSONArray;
  36 import weibo4android.org.json.JSONException;
  37 import weibo4android.org.json.JSONObject;
  38
  39 /**
  40  * A data class representing array of numeric IDs.
  41  *
  42  * @author Yusuke Yamamoto - yusuke at mac.com
  43  * @editor sinaWeibo
  44  */
  45 public class IDs extends WeiboResponse {
  46     private long[] ids;
  47     private long previousCursor;
  48     private long nextCursor;
  49     private static final long serialVersionUID = -6585026560164704953L;
  50     private static String[] ROOT_NODE_NAMES = {"id_list", "ids"};
  51
  52     /*package*/ IDs(Response res) throws WeiboException {
  53         super(res);
  54         Element elem = res.asDocument().getDocumentElement();
  55         ensureRootNodeNameIs(ROOT_NODE_NAMES, elem);
  56         NodeList idlist = elem.getElementsByTagName("id");
  57         ids = new long[idlist.getLength()];
  58         for (int i = 0; i < idlist.getLength(); i++) {
  59             try {
  60                 ids[i] = Long.parseLong(idlist.item(i).getFirstChild().getNodeValue());
  61             } catch (NumberFormatException nfe) {
  62                 throw new WeiboException("Weibo API returned malformed response: " + elem, nfe);
  63             }
  64         }
  65         previousCursor = getChildLong("previous_cursor", elem);
  66         nextCursor = getChildLong("next_cursor", elem);
  67     }
  68
  69     /*package*/ IDs(Response res,Weibo w) throws WeiboException {
  70         super(res);
  71         if("[]\n".equals(res.asString())){
  72                 previousCursor=0;
  73                 nextCursor=0;
  74                 ids= new long[0];
  75                 return;
  76         }
  77         JSONObject json=  res.asJSONObject();
  78         try {
  79                 previousCursor = json.getLong("previous_cursor");
  80             nextCursor = json.getLong("next_cursor");
  81
  82             if(!json.isNull("ids")){
  83                         JSONArray jsona= json.getJSONArray("ids");
  84                         int size=jsona.length();
  85                         ids =new long[ size];
  86                         for (int i = 0; i < size; i++) {
  87                                 ids[i] =jsona.getLong(i);
  88                                 }
  89                 }
  90
  91          } catch (JSONException jsone) {
  92              throw new WeiboException(jsone);
  93          }
  94
  95     }
  96
  97     public long[] getIDs() {
  98         return ids;
  99     }
 100
 101     /**
 102      *
 103      * @since Weibo4J 1.2.0
 104      */
 105     public boolean hasPrevious(){
 106         return 0 != previousCursor;
 107     }
 108
 109     /**
 110      *
 111      * @since Weibo4J 1.2.0
 112      */
 113     public long getPreviousCursor() {
 114         return previousCursor;
 115     }
 116
 117     /**
 118      *
 119      * @since Weibo4J 1.2.0
 120      */
 121     public boolean hasNext(){
 122         return 0 != nextCursor;
 123     }
 124
 125     /**
 126      *
 127      * @since Weibo4J 1.2.0
 128      */
 129     public long getNextCursor() {
 130         return nextCursor;
 131     }
 132
 133     @Override
 134     public boolean equals(Object o) {
 135         if (this == o) return true;
 136         if (!(o instanceof IDs)) return false;
 137
 138         IDs iDs = (IDs) o;
 139
 140         if (!Arrays.equals(ids, iDs.ids)) return false;
 141
 142         return true;
 143     }
 144
 145     @Override
 146     public int hashCode() {
 147         return ids != null ? Arrays.hashCode(ids) : 0;
 148     }
 149
 150     @Override
 151     public String toString() {
 152         return "IDs{" +
 153                 "ids=" + ids +
 154                 ", previousCursor=" + previousCursor +
 155                 ", nextCursor=" + nextCursor +
 156                 '}';
 157     }
 158 }