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1 package howtouse;
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2
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10
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3 import java.util.HashMap;
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4 import java.util.HashSet;
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5 import java.util.Stack;
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6
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7 import org.xml.sax.Attributes;
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8 import org.xml.sax.SAXException;
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9 import org.xml.sax.helpers.DefaultHandler;
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10
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16
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11 public class TextTagParser extends DefaultHandler {
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12
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13 protected Stack<MyObject> stack;
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14 private MyObject currentObj;
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15 private Attributes currentAttr;
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16 private String currentTag;
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17 private String currentTitleName;
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18 final static String TAGNAME_TITLE = "title";
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19 final static String TAGNAME_TEXT = "text";
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20 WikiLinkParser linkParser = new WikiLinkParser();
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21
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22 HashMap<String,HashSet<String>> hash = new HashMap<String,HashSet<String>>();
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23 HashSet<String> currentLinkHash = new HashSet<String>();
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24
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25 public TextTagParser() {
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26 stack = new Stack<MyObject>();
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27 }
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28
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29 public HashMap<String,HashSet<String>> getHash() {
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30 return hash;
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31 }
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32
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33 public void startDocument() {
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13
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34 // System.out.println("read start");
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35 }
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36
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37 public void startElement(String uri, String localName, String qName,
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38 Attributes attributes) throws SAXException {
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39 currentTag = qName;
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40 if (qName.equals(TAGNAME_TITLE)) {
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41 currentObj = new MyObject(attributes);
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42 stack.push(currentObj);
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43 } else if (qName.equals(TAGNAME_TEXT)) {
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44 currentObj = new MyObject(attributes);
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45 stack.push(currentObj);
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46 } else {
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47
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48 }
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49 }
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50
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51 public void characters(char[] ch, int offset, int length) {
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52
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53 String value = new String(ch, offset, length);
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54 if (currentObj != null) {
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55 currentObj.setValue(currentTag, currentAttr, value);
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56
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57 if(currentTag.equals(TAGNAME_TITLE)) {
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58 currentTitleName = value;
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59 }
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60 if(currentTag.equals(TAGNAME_TEXT)) {
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61 HashSet<String> tmpHash = linkParser.parse(value);
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62 if (tmpHash.size() <= 0) return;
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63 for (String link: tmpHash) {
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64 currentLinkHash.add(link);
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65 }
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66 }
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67 }
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68 }
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69
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70 public void endElement(String uri, String localName, String qName) {
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71
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72 if (currentObj == null)
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73 return;
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74 if (qName.equals(TAGNAME_TITLE)) {
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75 stack.pop();
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76 } else if (qName.equals(TAGNAME_TEXT)) {
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77 hash.put(currentTitleName, currentLinkHash);
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78 currentLinkHash = new HashSet<String>();
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79 stack.pop();
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80 } else {
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81
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82 }
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83 if (stack.empty())
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84 currentObj = null;
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85 else
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86 currentObj = (MyObject) stack.peek();
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87 }
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88
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89 public void endDocument() {
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90 // System.out.println("end reading file.");
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91 }
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92
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93 }
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