1 package com.hughes.android.dictionary;
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3 import java.io.IOException;
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4 import java.io.RandomAccessFile;
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5 import java.util.ArrayList;
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6 import java.util.List;
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7 import java.util.concurrent.atomic.AtomicBoolean;
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9 import com.hughes.util.CachingList;
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10 import com.hughes.util.raf.FileList;
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11 import com.hughes.util.raf.RAFFactory;
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12 import com.hughes.util.raf.RAFSerializable;
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13 import com.hughes.util.raf.RAFSerializableSerializer;
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14 import com.hughes.util.raf.RAFSerializer;
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15 import com.hughes.util.raf.UniformFileList;
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17 public final class Dictionary implements RAFSerializable<Dictionary> {
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19 static final RAFSerializer<Entry> ENTRY_SERIALIZER = new RAFSerializableSerializer<Entry>(
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21 static final RAFSerializer<Row> ROW_SERIALIZER = new RAFSerializableSerializer<Row>(
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23 static final RAFSerializer<IndexEntry> INDEX_ENTRY_SERIALIZER = new RAFSerializableSerializer<IndexEntry>(
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24 IndexEntry.RAF_FACTORY);
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26 final String dictionaryInfo;
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27 final List<Entry> entries;
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28 final LanguageData[] languageDatas = new LanguageData[2];
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30 public Dictionary(final String dictionaryInfo, final Language language0, final Language language1) {
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31 this.dictionaryInfo = dictionaryInfo;
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32 languageDatas[0] = new LanguageData(this, language0, Entry.LANG1);
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33 languageDatas[1] = new LanguageData(this, language1, Entry.LANG2);
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34 entries = new ArrayList<Entry>();
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37 public Dictionary(final RandomAccessFile raf) throws IOException {
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38 dictionaryInfo = raf.readUTF();
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39 entries = CachingList.create(FileList.create(raf, ENTRY_SERIALIZER, raf
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40 .getFilePointer()), 10000);
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41 languageDatas[0] = new LanguageData(this, raf, Entry.LANG1);
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42 languageDatas[1] = new LanguageData(this, raf, Entry.LANG2);
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45 public void write(RandomAccessFile raf) throws IOException {
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46 raf.writeUTF(dictionaryInfo);
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47 FileList.write(raf, entries, ENTRY_SERIALIZER);
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48 languageDatas[0].write(raf);
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49 languageDatas[1].write(raf);
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52 final class LanguageData implements RAFSerializable<LanguageData> {
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53 final Dictionary dictionary;
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54 final Language language;
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56 final List<Row> rows;
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57 final List<IndexEntry> sortedIndex;
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59 LanguageData(final Dictionary dictionary, final Language language, final byte lang) {
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60 this.dictionary = dictionary;
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61 this.language = language;
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63 rows = new ArrayList<Row>();
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64 sortedIndex = new ArrayList<IndexEntry>();
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67 LanguageData(final Dictionary dictionary, final RandomAccessFile raf, final byte lang) throws IOException {
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68 this.dictionary = dictionary;
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69 language = Language.lookup(raf.readUTF());
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70 if (language == null) {
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71 throw new RuntimeException("Unknown language.");
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74 rows = CachingList.create(UniformFileList.create(raf, ROW_SERIALIZER, raf
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75 .getFilePointer()), 10000);
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76 sortedIndex = CachingList.create(FileList.create(raf,
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77 INDEX_ENTRY_SERIALIZER, raf.getFilePointer()), 10000);
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80 public void write(final RandomAccessFile raf) throws IOException {
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81 raf.writeUTF(language.symbol);
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82 UniformFileList.write(raf, rows, ROW_SERIALIZER, 4);
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83 FileList.write(raf, sortedIndex, INDEX_ENTRY_SERIALIZER);
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86 String rowToString(final Row row) {
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87 return row.isToken() ? sortedIndex.get(row.getIndex()).word : entries
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88 .get(row.getIndex()).toString();
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91 int lookup(String word, final AtomicBoolean interrupted) {
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92 word = word.toLowerCase();
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95 int end = sortedIndex.size();
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96 while (start < end) {
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97 final int mid = (start + end) / 2;
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98 if (interrupted.get()) {
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101 final IndexEntry midEntry = sortedIndex.get(mid);
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102 if (midEntry.word.equals("pre-print")) {
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103 System.out.println();
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106 final int comp = language.sortComparator.compare(word, midEntry.word.toLowerCase());
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109 while (result > 0 && language.findComparator.compare(word, sortedIndex.get(result - 1).word.toLowerCase()) == 0) {
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111 if (interrupted.get()) {
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116 } else if (comp < 0) {
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117 // Log.d("THAD", "Upper bound: " + midEntry);
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120 // Log.d("THAD", "Lower bound: " + midEntry);
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124 return Math.min(sortedIndex.size() - 1, start);
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127 public IndexEntry getIndexEntryForRow(final int rowIndex) {
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128 // TODO: this kinda blows.
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132 row = rows.get(r);
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133 if (row.isToken() || row.indexEntry != null) {
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138 final IndexEntry indexEntry = row.isToken() ? sortedIndex.get(row.getIndex()) : row.indexEntry;
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139 for (; r <= rowIndex; ++r) {
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140 rows.get(r).indexEntry = indexEntry;
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142 assert rows.get(indexEntry.startRow).isToken();
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147 public static final class Row implements RAFSerializable<Row> {
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150 IndexEntry indexEntry = null;
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152 public Row(final int index) {
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153 this.index = index;
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156 static final RAFFactory<Row> RAF_FACTORY = new RAFFactory<Row>() {
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157 public Row create(RandomAccessFile raf) throws IOException {
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158 return new Row(raf.readInt());
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162 public void write(RandomAccessFile raf) throws IOException {
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163 raf.writeInt(index);
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166 boolean isToken() {
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170 public int getIndex() {
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178 public static final class IndexEntry implements RAFSerializable<IndexEntry> {
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180 final int startRow;
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182 public IndexEntry(final String word, final int startRow) {
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184 this.startRow = startRow;
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187 static final RAFFactory<IndexEntry> RAF_FACTORY = new RAFFactory<IndexEntry>() {
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188 public IndexEntry create(RandomAccessFile raf) throws IOException {
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189 final String word = raf.readUTF();
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190 final int startRow = raf.readInt();
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191 return new IndexEntry(word, startRow);
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195 public void write(final RandomAccessFile raf) throws IOException {
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196 raf.writeUTF(word);
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197 raf.writeInt(startRow);
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201 public String toString() {
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202 return word + "@" + startRow;
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