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import java.util.ArrayList; import java.util.HashMap; import java.util.HashSet; import java.util.List; import java.util.Set;
({ "rawtypes", "unchecked" }) public class { private HashMap keysMap = new HashMap(); static final String tihuantxt = "**********************************************************"; private int matchType = 1;
public void addKeywords(List<String> keywords) { for (int i = 0; i < keywords.size(); i++) { String key = keywords.get(i).trim(); HashMap nowhash = null; nowhash = keysMap; for (int j = 0; j < key.length(); j++) { char word = key.charAt(j); Object wordMap = nowhash.get(word); if (wordMap != null) { nowhash = (HashMap) wordMap; } else { HashMap<String, String> newWordHash = new HashMap<String, String>(); newWordHash.put("isEnd", "0"); nowhash.put(word, newWordHash); nowhash = newWordHash; } if (j == key.length() - 1) { nowhash.put("isEnd", "1"); } } } }
public void clearKeywords() { keysMap.clear(); }
private int checkKeyWords(String txt, int begin, int flag) { HashMap nowhash = null; nowhash = keysMap; int maxMatchRes = 0; int res = 0; int l = txt.length(); char word = 0; for (int i = begin; i < l; i++) { word = txt.charAt(i); Object wordMap = nowhash.get(word); if (wordMap != null) { res++; nowhash = (HashMap) wordMap; if (((String) nowhash.get("isEnd")).equals("1")) { if (flag == 1) { wordMap = null; nowhash = null; txt = null; return res; } else { maxMatchRes = res; } } } else { txt = null; nowhash = null; return maxMatchRes; } } txt = null; nowhash = null; return maxMatchRes; }
public String getTxtKeyWords(String txt) { Set set = new HashSet(); int l = txt.length(); String newtxt = new String(); for (int i = 0; i < l;) { int len = checkKeyWords(txt, i, matchType); if (len > 0) { newtxt += txt.substring(0, i); newtxt += tihuantxt.substring(0, len); newtxt += txt.substring(i + len, txt.length()); txt = newtxt; newtxt = ""; i += len; } else { i++; } } return txt; }
public boolean isContentKeyWords(String txt) { for (int i = 0; i < txt.length(); i++) { int len = checkKeyWords(txt, i, 1); if (len > 0) { return true; } } txt = null; return false; }
public int getMatchType() { return matchType; }
public void setMatchType(int matchType) { this.matchType = matchType; } }
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