1 | package nu.fw.jeti.jabber.elements; |
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2 | |
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3 | import nu.fw.jeti.jabber.JID; |
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4 | |
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5 | /** |
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6 | * Info/Query, or IQ, is a simple request-response mechanism. Just as HTTP is a request-response medium, |
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7 | * the iq element enables an entity to make a request of, and receive a response from, another entity. |
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8 | * The data content of the request and response is defined by the namespace declaration of a |
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9 | * direct child element of the iq element. |
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10 | * @see <a href=http://www.jabber.org/ietf/draft-miller-xmpp-core-00.html#iq>xmpp-core</a> |
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11 | * @author E.S. de Boer |
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12 | * @version 1.0 |
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13 | */ |
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14 | |
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15 | public class InfoQuery extends Packet |
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16 | { |
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17 | private static int ids=0; |
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18 | private String type; |
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19 | private static String ID_PREFIX = "Jeti_" + Math.random() +"_"; |
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20 | |
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21 | public InfoQuery(String type,IQExtension ex) |
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22 | { |
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23 | this(null,type,ID_PREFIX + ids++,ex); |
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24 | } |
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25 | |
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26 | public InfoQuery(JID to,String type,IQExtension ex) |
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27 | { |
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28 | this(to,type,ID_PREFIX + ids++,ex); |
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29 | } |
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30 | |
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31 | public InfoQuery(JID to,String type,String id,IQExtension ex) |
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32 | { |
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33 | super(to,id,(Extension)ex); |
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34 | if(super.id==null) super.id = ID_PREFIX + ids++; |
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35 | this.type = type; |
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36 | } |
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37 | |
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38 | // public InfoQuery(JID to,String type,String id,IQExtension ex,String error,int errorCode) |
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39 | // {//TODO remove |
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40 | // super(to,id,error,errorCode); |
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41 | // type = "error"; |
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42 | // } |
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43 | |
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44 | public InfoQuery(JID to,String id,XMPPError error) |
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45 | { |
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46 | super(to,id,error); |
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47 | if(super.id==null) super.id = ID_PREFIX + ids++; |
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48 | type = "error"; |
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49 | } |
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50 | |
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51 | |
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52 | protected InfoQuery(InfoQueryBuilder iqb) |
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53 | { |
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54 | super(iqb); |
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55 | if(id==null) id = ID_PREFIX + ids++; |
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56 | type = iqb.getType(); |
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57 | } |
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58 | |
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59 | public String getType(){return type;} |
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60 | |
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61 | public void appendToXML(StringBuffer xml) |
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62 | { |
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63 | xml.append("<iq"); |
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64 | appendBaseAttributes(xml); |
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65 | appendAttribute(xml,"type",type); |
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66 | if(getExtensions() == null && !"error".equals(getType())) |
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67 | {//short cut |
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68 | xml.append("/>"); |
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69 | return; |
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70 | } |
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71 | xml.append('>'); |
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72 | if("error".equals(type)) appendError(xml); |
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73 | appendExtensions(xml); |
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74 | xml.append("</iq>"); |
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75 | } |
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76 | } |
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77 | /* |
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78 | * Overrides for emacs |
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79 | * Local variables: |
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80 | * tab-width: 4 |
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81 | * End: |
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82 | */ |
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