1 package com.hughes.android.dictionary.engine;
3 import java.io.IOException;
4 import java.io.PrintStream;
5 import java.io.RandomAccessFile;
6 import java.util.ArrayList;
9 import com.hughes.util.CachingList;
10 import com.hughes.util.raf.RAFList;
11 import com.hughes.util.raf.RAFListSerializer;
12 import com.hughes.util.raf.RAFSerializable;
15 public class Dictionary implements RAFSerializable<Dictionary> {
17 static final int CACHE_SIZE = 5000;
19 static final String END_OF_DICTIONARY = "END OF DICTIONARY";
22 final int dictFileVersion;
23 final String dictInfo;
24 final List<PairEntry> pairEntries;
25 final List<TextEntry> textEntries;
26 final List<EntrySource> sources;
27 final List<Index> indices;
29 public Dictionary(final String dictInfo) {
30 this.dictFileVersion = 0;
31 this.dictInfo = dictInfo;
32 pairEntries = new ArrayList<PairEntry>();
33 textEntries = new ArrayList<TextEntry>();
34 sources = new ArrayList<EntrySource>();
35 indices = new ArrayList<Index>();
38 public Dictionary(final RandomAccessFile raf) throws IOException {
39 dictFileVersion = raf.readInt();
40 if (dictFileVersion != 0) {
41 throw new IOException("Invalid dictionary version: " + dictFileVersion);
43 dictInfo = raf.readUTF();
44 sources = CachingList.createFullyCached(RAFList.create(raf, EntrySource.SERIALIZER, raf.getFilePointer()));
45 pairEntries = CachingList.create(RAFList.create(raf, PairEntry.SERIALIZER, raf.getFilePointer()), CACHE_SIZE);
46 textEntries = CachingList.create(RAFList.create(raf, TextEntry.SERIALIZER, raf.getFilePointer()), CACHE_SIZE);
47 indices = CachingList.createFullyCached(RAFList.create(raf, indexSerializer, raf.getFilePointer()));
48 final String end = raf.readUTF();
49 if (!end.equals(END_OF_DICTIONARY)) {
50 throw new IOException("Dictionary seems corrupt: " + end);
55 public void write(RandomAccessFile raf) throws IOException {
56 raf.writeInt(dictFileVersion);
57 raf.writeUTF(dictInfo);
58 RAFList.write(raf, sources, EntrySource.SERIALIZER);
59 RAFList.write(raf, pairEntries, PairEntry.SERIALIZER);
60 RAFList.write(raf, textEntries, TextEntry.SERIALIZER);
61 RAFList.write(raf, indices, indexSerializer);
62 raf.writeUTF(END_OF_DICTIONARY);
65 private final RAFListSerializer<Index> indexSerializer = new RAFListSerializer<Index>() {
67 public Index read(RandomAccessFile raf, final int readIndex) throws IOException {
68 return new Index(Dictionary.this, raf);
71 public void write(RandomAccessFile raf, Index t) throws IOException {
75 public void print(final PrintStream out) {
76 out.println("dictInfo=" + dictInfo);
77 for (final Index index : indices) {