package com.hughes.android.dictionary.engine;
-import java.io.BufferedOutputStream;
-import java.io.ByteArrayOutputStream;
import java.io.DataInput;
-import java.io.DataInputStream;
import java.io.DataOutput;
-import java.io.DataOutputStream;
import java.io.File;
-import java.io.FileOutputStream;
import java.io.IOException;
-import java.io.ObjectOutputStream;
import java.io.PrintStream;
import java.io.RandomAccessFile;
-import java.nio.channels.Channels;
+import java.nio.MappedByteBuffer;
import java.nio.channels.FileChannel;
-import java.nio.charset.StandardCharsets;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
-import java.util.zip.GZIPOutputStream;
import com.hughes.android.dictionary.DictionaryInfo;
import com.hughes.util.CachingList;
+import com.hughes.util.DataInputBuffer;
import com.hughes.util.raf.RAFList;
import com.hughes.util.raf.RAFListSerializer;
-import com.hughes.util.raf.RAFSerializable;
-public class Dictionary implements RAFSerializable<Dictionary> {
+public class Dictionary {
private static final int CACHE_SIZE = 5000;
// persisted
final int dictFileVersion;
- private final long creationMillis;
+ public final long creationMillis;
public final String dictInfo;
public final List<PairEntry> pairEntries;
public final List<TextEntry> textEntries;
public final List<HtmlEntry> htmlEntries;
- public final List<byte[]> htmlData;
+ public final List<DataInputBuffer> htmlData;
public final List<EntrySource> sources;
public final List<Index> indices;
+ // Could be a local variable in constructor, but
+ // this way avoids a native-image VM bug.
+ private final MappedByteBuffer wholefile;
/**
* dictFileVersion 1 adds: <li>links to sources? dictFileVersion 2 adds: <li>
htmlData = null;
sources = new ArrayList<>();
indices = new ArrayList<>();
+ wholefile = null;
}
public Dictionary(final FileChannel ch) throws IOException {
- DataInput raf = new DataInputStream(Channels.newInputStream(ch));
- dictFileVersion = raf.readInt();
+ wholefile = ch.map(FileChannel.MapMode.READ_ONLY, 0, ch.size());
+ DataInputBuffer in = new DataInputBuffer(wholefile, 0);
+ dictFileVersion = in.readInt();
if (dictFileVersion < 0 || dictFileVersion > CURRENT_DICT_VERSION) {
throw new IOException("Invalid dictionary version: " + dictFileVersion);
}
- creationMillis = raf.readLong();
- dictInfo = raf.readUTF();
+ creationMillis = in.readLong();
+ dictInfo = in.readUTF();
// Load the sources, then seek past them, because reading them later
// disrupts the offset.
try {
- final RAFList<EntrySource> rafSources = RAFList.create(ch, new EntrySource.Serializer(
- this), ch.position(), dictFileVersion, dictInfo + " sources: ");
+ final RAFList<EntrySource> rafSources = RAFList.create(in, new EntrySource.Serializer(
+ this), dictFileVersion, dictInfo + " sources: ");
sources = new ArrayList<>(rafSources);
ch.position(rafSources.getEndOffset());
pairEntries = CachingList.create(
- RAFList.create(ch, new PairEntry.Serializer(this), ch.position(), dictFileVersion, dictInfo + " pairs: "),
+ RAFList.create(in, new PairEntry.Serializer(this), dictFileVersion, dictInfo + " pairs: "),
CACHE_SIZE, false);
textEntries = CachingList.create(
- RAFList.create(ch, new TextEntry.Serializer(this), ch.position(), dictFileVersion, dictInfo + " text: "),
+ RAFList.create(in, new TextEntry.Serializer(this), dictFileVersion, dictInfo + " text: "),
CACHE_SIZE, true);
if (dictFileVersion >= 5) {
htmlEntries = CachingList.create(
- RAFList.create(ch, new HtmlEntry.Serializer(this, ch), ch.position(), dictFileVersion, dictInfo + " html: "),
+ RAFList.create(in, new HtmlEntry.Serializer(this), dictFileVersion, dictInfo + " html: "),
CACHE_SIZE, false);
} else {
htmlEntries = Collections.emptyList();
}
if (dictFileVersion >= 7) {
- htmlData = RAFList.create(ch, new HtmlEntry.DataDeserializer(), ch.position(), dictFileVersion, dictInfo + " html: ");
+ htmlData = RAFList.create(in, new HtmlEntry.DataDeserializer(), dictFileVersion, dictInfo + " html: ");
} else {
htmlData = null;
}
- indices = CachingList.createFullyCached(RAFList.create(ch, new IndexSerializer(ch),
- ch.position(), dictFileVersion, dictInfo + " index: "));
+ indices = CachingList.createFullyCached(RAFList.create(in, new IndexSerializer(),
+ dictFileVersion, dictInfo + " index: "));
} catch (RuntimeException e) {
throw new IOException("RuntimeException loading dictionary", e);
}
- final String end = raf.readUTF();
+ final String end = in.readUTF();
if (!end.equals(END_OF_DICTIONARY)) {
throw new IOException("Dictionary seems corrupt: " + end);
}
}
- @Override
public void write(DataOutput out) throws IOException {
RandomAccessFile raf = (RandomAccessFile)out;
if (dictFileVersion < 7) throw new RuntimeException("write function cannot write formats older than v7!");
System.out.println("text start: " + raf.getFilePointer());
RAFList.write(raf, textEntries, new TextEntry.Serializer(this));
System.out.println("html index start: " + raf.getFilePointer());
- RAFList.write(raf, htmlEntries, new HtmlEntry.Serializer(this, null), 64, true);
+ RAFList.write(raf, htmlEntries, new HtmlEntry.Serializer(this), 64, true);
System.out.println("html data start: " + raf.getFilePointer());
assert htmlData == null;
RAFList.write(raf, htmlEntries, new HtmlEntry.DataSerializer(), 128, true);
System.out.println("indices start: " + raf.getFilePointer());
- RAFList.write(raf, indices, new IndexSerializer(null));
- System.out.println("end: " + raf.getFilePointer());
- raf.writeUTF(END_OF_DICTIONARY);
- }
-
- private void writev6Sources(RandomAccessFile out) throws IOException {
- ByteArrayOutputStream toc = new ByteArrayOutputStream();
- DataOutputStream tocout = new DataOutputStream(toc);
-
- out.writeInt(sources.size());
- long tocPos = out.getFilePointer();
- out.seek(tocPos + sources.size() * 8 + 8);
- for (EntrySource s : sources) {
- long dataPos = out.getFilePointer();
- tocout.writeLong(dataPos);
-
- out.writeUTF(s.getName());
- out.writeInt(s.getNumEntries());
- }
- long dataPos = out.getFilePointer();
- tocout.writeLong(dataPos);
- tocout.close();
-
- out.seek(tocPos);
- out.write(toc.toByteArray());
- out.seek(dataPos);
- }
-
- private void writev6PairEntries(RandomAccessFile out) throws IOException {
- ByteArrayOutputStream toc = new ByteArrayOutputStream();
- DataOutputStream tocout = new DataOutputStream(toc);
-
- long tocPos = out.getFilePointer();
- long dataPos = tocPos + 4 + pairEntries.size() * 8 + 8;
-
- out.seek(dataPos);
- DataOutputStream outb = new DataOutputStream(new BufferedOutputStream(new FileOutputStream(out.getFD())));
-
- tocout.writeInt(pairEntries.size());
- for (PairEntry pe : pairEntries) {
- tocout.writeLong(dataPos + outb.size());
-
- outb.writeShort(pe.entrySource.index());
- outb.writeInt(pe.pairs.size());
- for (PairEntry.Pair p : pe.pairs) {
- outb.writeUTF(p.lang1);
- outb.writeUTF(p.lang2);
- }
- }
- dataPos += outb.size();
- outb.flush();
- tocout.writeLong(dataPos);
- tocout.close();
-
- out.seek(tocPos);
- out.write(toc.toByteArray());
- out.seek(dataPos);
- }
-
- private void writev6TextEntries(RandomAccessFile out) throws IOException {
- ByteArrayOutputStream toc = new ByteArrayOutputStream();
- DataOutputStream tocout = new DataOutputStream(toc);
-
- out.writeInt(textEntries.size());
- long tocPos = out.getFilePointer();
- out.seek(tocPos + textEntries.size() * 8 + 8);
- for (TextEntry t : textEntries) {
- long dataPos = out.getFilePointer();
- tocout.writeLong(dataPos);
-
- out.writeShort(t.entrySource.index());
- out.writeUTF(t.text);
- }
- long dataPos = out.getFilePointer();
- tocout.writeLong(dataPos);
- tocout.close();
-
- out.seek(tocPos);
- out.write(toc.toByteArray());
- out.seek(dataPos);
- }
-
- private void writev6EmptyList(RandomAccessFile out) throws IOException {
- out.writeInt(0);
- out.writeLong(out.getFilePointer() + 8);
- }
-
- private void writev6HtmlEntries(RandomAccessFile out) throws IOException {
- ByteArrayOutputStream toc = new ByteArrayOutputStream();
- DataOutputStream tocout = new DataOutputStream(toc);
-
- long tocPos = out.getFilePointer();
- long dataPos = tocPos + 4 + htmlEntries.size() * 8 + 8;
-
- out.seek(dataPos);
- DataOutputStream outb = new DataOutputStream(new BufferedOutputStream(new FileOutputStream(out.getFD())));
-
- tocout.writeInt(htmlEntries.size());
- for (HtmlEntry h : htmlEntries) {
- tocout.writeLong(dataPos + outb.size());
-
- outb.writeShort(h.entrySource.index());
- outb.writeUTF(h.title);
- byte[] data = h.getHtml().getBytes(StandardCharsets.UTF_8);
- outb.writeInt(data.length);
- ByteArrayOutputStream baos = new ByteArrayOutputStream();
- GZIPOutputStream gzout = new GZIPOutputStream(baos);
- gzout.write(data);
- gzout.close();
- outb.writeInt(baos.size());
- outb.write(baos.toByteArray());
- }
- dataPos += outb.size();
- outb.flush();
- tocout.writeLong(dataPos);
- tocout.close();
-
- out.seek(tocPos);
- out.write(toc.toByteArray());
- out.seek(dataPos);
- }
-
- private void writev6HtmlIndices(DataOutputStream out, long pos, List<HtmlEntry> entries) throws IOException {
- long dataPos = pos + 4 + entries.size() * 8 + 8;
-
- out.writeInt(entries.size());
-
- // TOC is trivial, so optimize writing it
- for (int i = 0; i < entries.size(); i++) {
- out.writeLong(dataPos);
- dataPos += 4;
- }
- out.writeLong(dataPos);
-
- for (HtmlEntry e : entries) {
- out.writeInt(e.index());
- }
- }
-
- private void writev6IndexEntries(RandomAccessFile out, List<Index.IndexEntry> entries, int[] prunedRowIdx) throws IOException {
- ByteArrayOutputStream toc = new ByteArrayOutputStream();
- DataOutputStream tocout = new DataOutputStream(toc);
-
- long tocPos = out.getFilePointer();
- long dataPos = tocPos + 4 + entries.size() * 8 + 8;
-
- out.seek(dataPos);
- DataOutputStream outb = new DataOutputStream(new BufferedOutputStream(new FileOutputStream(out.getFD())));
-
- tocout.writeInt(entries.size());
- for (Index.IndexEntry e : entries) {
- tocout.writeLong(dataPos + outb.size());
-
- outb.writeUTF(e.token);
-
- int startRow = e.startRow;
- int numRows = e.numRows;
- if (prunedRowIdx != null) {
- // note: the start row will always be a TokenRow
- // and thus never be pruned
- int newNumRows = 1;
- for (int i = 1; i < numRows; i++) {
- if (prunedRowIdx[startRow + i] >= 0) newNumRows++;
- }
- startRow = prunedRowIdx[startRow];
- numRows = newNumRows;
- }
-
- outb.writeInt(startRow);
- outb.writeInt(numRows);
- final boolean hasNormalizedForm = !e.token.equals(e.normalizedToken());
- outb.writeBoolean(hasNormalizedForm);
- if (hasNormalizedForm) outb.writeUTF(e.normalizedToken());
- writev6HtmlIndices(outb, dataPos + outb.size(),
- prunedRowIdx == null ? e.htmlEntries : Collections.<HtmlEntry>emptyList());
- }
- dataPos += outb.size();
- outb.flush();
- tocout.writeLong(dataPos);
- tocout.close();
-
- out.seek(tocPos);
- out.write(toc.toByteArray());
- out.seek(dataPos);
- }
-
- private void writev6Index(RandomAccessFile out, boolean skipHtml) throws IOException {
- ByteArrayOutputStream toc = new ByteArrayOutputStream();
- DataOutputStream tocout = new DataOutputStream(toc);
-
- out.writeInt(indices.size());
- long tocPos = out.getFilePointer();
- out.seek(tocPos + indices.size() * 8 + 8);
- for (Index idx : indices) {
- // create pruned index for skipHtml feature
- int[] prunedRowIdx = null;
- int prunedSize = 0;
- if (skipHtml) {
- prunedRowIdx = new int[idx.rows.size()];
- for (int i = 0; i < idx.rows.size(); i++) {
- final RowBase r = idx.rows.get(i);
- // prune Html entries
- boolean pruned = r instanceof HtmlEntry.Row;
- prunedRowIdx[i] = pruned ? -1 : prunedSize;
- if (!pruned) prunedSize++;
- }
- }
-
- long dataPos = out.getFilePointer();
- tocout.writeLong(dataPos);
-
- out.writeUTF(idx.shortName);
- out.writeUTF(idx.longName);
- out.writeUTF(idx.sortLanguage.getIsoCode());
- out.writeUTF(idx.normalizerRules);
- out.writeBoolean(idx.swapPairEntries);
- out.writeInt(idx.mainTokenCount);
- writev6IndexEntries(out, idx.sortedIndexEntries, prunedRowIdx);
-
- // write stoplist, serializing the whole Set *shudder*
- final ByteArrayOutputStream baos = new ByteArrayOutputStream();
- final ObjectOutputStream oos = new ObjectOutputStream(baos);
- oos.writeObject(idx.stoplist);
- oos.close();
- final byte[] bytes = baos.toByteArray();
-
-
- DataOutputStream outb = new DataOutputStream(new BufferedOutputStream(new FileOutputStream(out.getFD())));
- outb.writeInt(bytes.length);
- outb.write(bytes);
-
- outb.writeInt(skipHtml ? prunedSize : idx.rows.size());
- outb.writeInt(5);
- for (RowBase r : idx.rows) {
- int type = 0;
- if (r instanceof PairEntry.Row) {
- type = 0;
- } else if (r instanceof TokenRow) {
- final TokenRow tokenRow = (TokenRow)r;
- type = tokenRow.hasMainEntry ? 1 : 3;
- } else if (r instanceof TextEntry.Row) {
- type = 2;
- } else if (r instanceof HtmlEntry.Row) {
- type = 4;
- if (skipHtml) continue;
- } else {
- throw new RuntimeException("Row type not supported for v6");
- }
- outb.writeByte(type);
- outb.writeInt(r.referenceIndex);
- }
- outb.flush();
- }
- long dataPos = out.getFilePointer();
- tocout.writeLong(dataPos);
- tocout.close();
-
- out.seek(tocPos);
- out.write(toc.toByteArray());
- out.seek(dataPos);
- }
-
- public void writev6(DataOutput out, boolean skipHtml) throws IOException {
- RandomAccessFile raf = (RandomAccessFile)out;
- raf.writeInt(6);
- raf.writeLong(creationMillis);
- raf.writeUTF(dictInfo);
- System.out.println("sources start: " + raf.getFilePointer());
- writev6Sources(raf);
- System.out.println("pair start: " + raf.getFilePointer());
- writev6PairEntries(raf);
- System.out.println("text start: " + raf.getFilePointer());
- writev6TextEntries(raf);
- System.out.println("html index start: " + raf.getFilePointer());
- if (skipHtml) writev6EmptyList(raf);
- else writev6HtmlEntries(raf);
- System.out.println("indices start: " + raf.getFilePointer());
- writev6Index(raf, skipHtml);
+ RAFList.write(raf, indices, new IndexSerializer());
System.out.println("end: " + raf.getFilePointer());
raf.writeUTF(END_OF_DICTIONARY);
}
private final class IndexSerializer implements RAFListSerializer<Index> {
- private final FileChannel ch;
-
- IndexSerializer(FileChannel ch) {
- this.ch = ch;
- }
-
@Override
public Index read(DataInput raf, final int readIndex) throws IOException {
- return new Index(Dictionary.this, ch, raf);
+ return new Index(Dictionary.this, (DataInputBuffer)raf);
}
@Override
projects / Dictionary.git / blobdiff