📄 cellphone.java
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package lia.tools;import org.apache.lucene.index.Term;import org.apache.lucene.search.Hits;import org.apache.lucene.search.IndexSearcher;import org.apache.lucene.search.WildcardQuery;import org.apache.lucene.search.BooleanQuery;import org.apache.lucene.search.TermQuery;import org.apache.lucene.search.Sort;import org.apache.lucene.search.SortField;import org.apache.lucene.store.Directory;import org.apache.lucene.store.FSDirectory;import org.apache.lucene.store.RAMDirectory;import javax.swing.AbstractAction;import javax.swing.JButton;import javax.swing.JFrame;import javax.swing.JPanel;import javax.swing.JTextField;import java.awt.BorderLayout;import java.awt.GridLayout;import java.awt.HeadlessException;import java.awt.Color;import java.awt.event.ActionEvent;import java.io.IOException;import java.util.Date;public class CellPhone extends JFrame { private JTextField screen = new JTextField(); private JTextField status = new JTextField(); private IndexSearcher searcher; private String number = ""; private int curWord; private String[] words; private boolean debug = false; public CellPhone(Directory directory) throws HeadlessException, IOException { setTitle("CellPhone"); JPanel phoneButtons = new JPanel(new GridLayout(4, 3)); phoneButtons.add(new JButton(new PhoneButtonAction('1', "[next]"))); phoneButtons.add(new JButton(new PhoneButtonAction('2', "abc"))); phoneButtons.add(new JButton(new PhoneButtonAction('3', "def"))); phoneButtons.add(new JButton(new PhoneButtonAction('4', "ghi"))); phoneButtons.add(new JButton(new PhoneButtonAction('5', "jkl"))); phoneButtons.add(new JButton(new PhoneButtonAction('6', "mno"))); phoneButtons.add(new JButton(new PhoneButtonAction('7', "pqrs"))); phoneButtons.add(new JButton(new PhoneButtonAction('8', "tuv"))); phoneButtons.add(new JButton(new PhoneButtonAction('9', "wxyz"))); phoneButtons.add(new JButton(new PhoneButtonAction('*', "[back]"))); phoneButtons.add(new JButton(new PhoneButtonAction('0', "[debug]"))); phoneButtons.add(new JButton(new PhoneButtonAction('#', "[clear]"))); getContentPane().setLayout(new BorderLayout()); status.setBackground(Color.LIGHT_GRAY); getContentPane().add(screen, BorderLayout.NORTH); getContentPane().add(phoneButtons, BorderLayout.CENTER); getContentPane().add(status, BorderLayout.SOUTH); pack(); searcher = new IndexSearcher(directory); } private class PhoneButtonAction extends AbstractAction { private char key; public PhoneButtonAction(char key, String name) { super("<html><center><b>" + key + "</b><br>" + name +"</center></html>"); this.key = key; } public void actionPerformed(ActionEvent event) { String message = null; switch (key) { // debug current number case '0': debug = !debug; message = "DEBUG " + (debug ? "ON" : "OFF"); break; // next matching word case '1': curWord++; if (words == null || curWord >= words.length) curWord = 0; message = ""; break; // clear case '#': number = ""; words = null; curWord = 0; message = "Cleared"; break; // back up a digit case '*': if (number.length() > 0) { number = number.substring(0, number.length() - 1); } break; default: number = number + key; } if (message == null) { long time = findWords(); message = "(" + time + "ms)"; } screen.setText(getCurrentWord()); updateStatus(message); } } private String getCurrentWord() { if (words == null || words.length == 0) return ""; return words[curWord]; } private void updateStatus(String additonal) { String message = "no words"; if (words != null && words.length > 0) { message = (curWord + 1) + "/" + words.length; } status.setText("#" + number + ": " + message + " " + additonal); } private long findWords() { if (number == null || number.length() == 0) { words = null; return -1; } BooleanQuery query = new BooleanQuery(); Term term = new Term("t9", number); TermQuery termQuery = new TermQuery(term); termQuery.setBoost(2.0f); WildcardQuery plus2 = new WildcardQuery(new Term("t9", number + "??")); query.add(termQuery, false, false); query.add(plus2, false, false); long time = -1; try { Date start = new Date(); Hits hits = searcher.search(query, new Sort(new SortField[] {SortField.FIELD_SCORE, new SortField("length", SortField.INT), new SortField("word")})); Date end = new Date(); time = end.getTime() - start.getTime(); if (debug) System.out.println("---- " + number); words = new String[hits.length()]; curWord = 0; for (int i=0; i < hits.length(); i++) { if (debug) { System.out.println(hits.doc(i).get("word") + " - " + hits.score(i)); System.out.println(searcher.explain(query, hits.id(i))); } words[i] = hits.doc(i).get("word"); } if (debug) { if (hits.length() > 0) { System.out.println(number + ": " + hits.doc(0).get("word") + " (" + hits.length() + ")"); } } } catch (IOException e) { updateStatus("Exception! See console."); e.printStackTrace(); } return time; } public static void main(String[] args) throws IOException { if (args.length != 1) { System.err.println("java CellPhone <index>"); System.exit(-1); } CellPhone app = new CellPhone(new RAMDirectory(FSDirectory.getDirectory(args[0], false))); app.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); app.setVisible(true); }}⌨️ 快捷键说明
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