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authorJean Chalard <jchalard@google.com>2013-12-12 15:08:10 +0900
committerJean Chalard <jchalard@google.com>2013-12-13 18:18:20 +0900
commita245d15da5d295af21ead9a01583c64796a31ad7 (patch)
tree1156247b156533c7b946f0f42c1d74642ea991e1 /java/src/com/android/inputmethod/latin/makedict/Ver3DictDecoder.java
parentaf0c222a5ec4a8dda3db7b99b2e641434f2c4225 (diff)
downloadlatinime-a245d15da5d295af21ead9a01583c64796a31ad7.tar.gz
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Have dicttool use the native library to generate v4 dicts.
Yay ! Change-Id: Iea8ced9e81031b9ab7eff05ad9ef7215be248de9
Diffstat (limited to 'java/src/com/android/inputmethod/latin/makedict/Ver3DictDecoder.java')
-rw-r--r--java/src/com/android/inputmethod/latin/makedict/Ver3DictDecoder.java271
1 files changed, 0 insertions, 271 deletions
diff --git a/java/src/com/android/inputmethod/latin/makedict/Ver3DictDecoder.java b/java/src/com/android/inputmethod/latin/makedict/Ver3DictDecoder.java
deleted file mode 100644
index acab4f8a5..000000000
--- a/java/src/com/android/inputmethod/latin/makedict/Ver3DictDecoder.java
+++ /dev/null
@@ -1,271 +0,0 @@
-/*
- * Copyright (C) 2013 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.android.inputmethod.latin.makedict;
-
-import com.android.inputmethod.annotations.UsedForTesting;
-import com.android.inputmethod.latin.makedict.BinaryDictDecoderUtils.CharEncoding;
-import com.android.inputmethod.latin.makedict.BinaryDictDecoderUtils.DictBuffer;
-import com.android.inputmethod.latin.makedict.FormatSpec.FileHeader;
-import com.android.inputmethod.latin.makedict.FormatSpec.FormatOptions;
-import com.android.inputmethod.latin.makedict.FusionDictionary.PtNode;
-import com.android.inputmethod.latin.makedict.FusionDictionary.WeightedString;
-import com.android.inputmethod.latin.utils.JniUtils;
-
-import android.util.Log;
-
-import java.io.File;
-import java.io.FileNotFoundException;
-import java.io.IOException;
-import java.util.ArrayList;
-import java.util.Arrays;
-
-/**
- * An implementation of DictDecoder for version 3 binary dictionary.
- */
-@UsedForTesting
-public class Ver3DictDecoder extends AbstractDictDecoder {
- private static final String TAG = Ver3DictDecoder.class.getSimpleName();
-
- static {
- JniUtils.loadNativeLibrary();
- }
-
- // TODO: implement something sensical instead of just a phony method
- private static native int doNothing();
-
- protected static class PtNodeReader extends AbstractDictDecoder.PtNodeReader {
- private static int readFrequency(final DictBuffer dictBuffer) {
- return dictBuffer.readUnsignedByte();
- }
- }
-
- protected final File mDictionaryBinaryFile;
- private final DictionaryBufferFactory mBufferFactory;
- protected DictBuffer mDictBuffer;
-
- /* package */ Ver3DictDecoder(final File file, final int factoryFlag) {
- mDictionaryBinaryFile = file;
- mDictBuffer = null;
-
- if ((factoryFlag & MASK_DICTBUFFER) == USE_READONLY_BYTEBUFFER) {
- mBufferFactory = new DictionaryBufferFromReadOnlyByteBufferFactory();
- } else if ((factoryFlag & MASK_DICTBUFFER) == USE_BYTEARRAY) {
- mBufferFactory = new DictionaryBufferFromByteArrayFactory();
- } else if ((factoryFlag & MASK_DICTBUFFER) == USE_WRITABLE_BYTEBUFFER) {
- mBufferFactory = new DictionaryBufferFromWritableByteBufferFactory();
- } else {
- mBufferFactory = new DictionaryBufferFromReadOnlyByteBufferFactory();
- }
- }
-
- /* package */ Ver3DictDecoder(final File file, final DictionaryBufferFactory factory) {
- mDictionaryBinaryFile = file;
- mBufferFactory = factory;
- }
-
- @Override
- public void openDictBuffer() throws FileNotFoundException, IOException {
- mDictBuffer = mBufferFactory.getDictionaryBuffer(mDictionaryBinaryFile);
- }
-
- @Override
- public boolean isDictBufferOpen() {
- return mDictBuffer != null;
- }
-
- /* package */ DictBuffer getDictBuffer() {
- return mDictBuffer;
- }
-
- @UsedForTesting
- /* package */ DictBuffer openAndGetDictBuffer() throws FileNotFoundException, IOException {
- openDictBuffer();
- return getDictBuffer();
- }
-
- @Override
- public FileHeader readHeader() throws IOException, UnsupportedFormatException {
- if (mDictBuffer == null) {
- openDictBuffer();
- }
- final FileHeader header = super.readHeader(mDictBuffer);
- final int version = header.mFormatOptions.mVersion;
- if (!(version >= 2 && version <= 3)) {
- throw new UnsupportedFormatException("File header has a wrong version : " + version);
- }
- return header;
- }
-
- // TODO: Make this buffer multi thread safe.
- private final int[] mCharacterBuffer = new int[FormatSpec.MAX_WORD_LENGTH];
- @Override
- public PtNodeInfo readPtNode(final int ptNodePos, final FormatOptions options) {
- int addressPointer = ptNodePos;
- final int flags = PtNodeReader.readPtNodeOptionFlags(mDictBuffer);
- addressPointer += FormatSpec.PTNODE_FLAGS_SIZE;
-
- final int parentAddress = PtNodeReader.readParentAddress(mDictBuffer, options);
- if (BinaryDictIOUtils.supportsDynamicUpdate(options)) {
- addressPointer += FormatSpec.PARENT_ADDRESS_SIZE;
- }
-
- final int characters[];
- if (0 != (flags & FormatSpec.FLAG_HAS_MULTIPLE_CHARS)) {
- int index = 0;
- int character = CharEncoding.readChar(mDictBuffer);
- addressPointer += CharEncoding.getCharSize(character);
- while (FormatSpec.INVALID_CHARACTER != character) {
- // FusionDictionary is making sure that the length of the word is smaller than
- // MAX_WORD_LENGTH.
- // So we'll never write past the end of mCharacterBuffer.
- mCharacterBuffer[index++] = character;
- character = CharEncoding.readChar(mDictBuffer);
- addressPointer += CharEncoding.getCharSize(character);
- }
- characters = Arrays.copyOfRange(mCharacterBuffer, 0, index);
- } else {
- final int character = CharEncoding.readChar(mDictBuffer);
- addressPointer += CharEncoding.getCharSize(character);
- characters = new int[] { character };
- }
- final int frequency;
- if (0 != (FormatSpec.FLAG_IS_TERMINAL & flags)) {
- frequency = PtNodeReader.readFrequency(mDictBuffer);
- addressPointer += FormatSpec.PTNODE_FREQUENCY_SIZE;
- } else {
- frequency = PtNode.NOT_A_TERMINAL;
- }
- int childrenAddress = PtNodeReader.readChildrenAddress(mDictBuffer, flags, options);
- if (childrenAddress != FormatSpec.NO_CHILDREN_ADDRESS) {
- childrenAddress += addressPointer;
- }
- addressPointer += BinaryDictIOUtils.getChildrenAddressSize(flags, options);
- final ArrayList<WeightedString> shortcutTargets;
- if (0 != (flags & FormatSpec.FLAG_HAS_SHORTCUT_TARGETS)) {
- // readShortcut will add shortcuts to shortcutTargets.
- shortcutTargets = new ArrayList<WeightedString>();
- addressPointer += PtNodeReader.readShortcut(mDictBuffer, shortcutTargets);
- } else {
- shortcutTargets = null;
- }
-
- final ArrayList<PendingAttribute> bigrams;
- if (0 != (flags & FormatSpec.FLAG_HAS_BIGRAMS)) {
- bigrams = new ArrayList<PendingAttribute>();
- addressPointer += PtNodeReader.readBigramAddresses(mDictBuffer, bigrams,
- addressPointer);
- if (bigrams.size() >= FormatSpec.MAX_BIGRAMS_IN_A_PTNODE) {
- throw new RuntimeException("Too many bigrams in a PtNode (" + bigrams.size()
- + " but max is " + FormatSpec.MAX_BIGRAMS_IN_A_PTNODE + ")");
- }
- } else {
- bigrams = null;
- }
- return new PtNodeInfo(ptNodePos, addressPointer, flags, characters, frequency,
- parentAddress, childrenAddress, shortcutTargets, bigrams);
- }
-
- @Override
- public FusionDictionary readDictionaryBinary(final FusionDictionary dict,
- final boolean deleteDictIfBroken)
- throws FileNotFoundException, IOException, UnsupportedFormatException {
- if (mDictBuffer == null) {
- openDictBuffer();
- }
- try {
- return BinaryDictDecoderUtils.readDictionaryBinary(this, dict);
- } catch (IOException e) {
- Log.e(TAG, "The dictionary " + mDictionaryBinaryFile.getName() + " is broken.", e);
- if (deleteDictIfBroken && !mDictionaryBinaryFile.delete()) {
- Log.e(TAG, "Failed to delete the broken dictionary.");
- }
- throw e;
- } catch (UnsupportedFormatException e) {
- Log.e(TAG, "The dictionary " + mDictionaryBinaryFile.getName() + " is broken.", e);
- if (deleteDictIfBroken && !mDictionaryBinaryFile.delete()) {
- Log.e(TAG, "Failed to delete the broken dictionary.");
- }
- throw e;
- }
- }
-
- @Override
- public void setPosition(int newPos) {
- mDictBuffer.position(newPos);
- }
-
- @Override
- public int getPosition() {
- return mDictBuffer.position();
- }
-
- @Override
- public int readPtNodeCount() {
- return BinaryDictDecoderUtils.readPtNodeCount(mDictBuffer);
- }
-
- @Override
- public boolean readAndFollowForwardLink() {
- final int nextAddress = mDictBuffer.readUnsignedInt24();
- if (nextAddress >= 0 && nextAddress < mDictBuffer.limit()) {
- mDictBuffer.position(nextAddress);
- return true;
- }
- return false;
- }
-
- @Override
- public boolean hasNextPtNodeArray() {
- return mDictBuffer.position() != FormatSpec.NO_FORWARD_LINK_ADDRESS;
- }
-
- @Override
- public void skipPtNode(final FormatOptions formatOptions) {
- final int flags = PtNodeReader.readPtNodeOptionFlags(mDictBuffer);
- PtNodeReader.readParentAddress(mDictBuffer, formatOptions);
- BinaryDictIOUtils.skipString(mDictBuffer,
- (flags & FormatSpec.FLAG_HAS_MULTIPLE_CHARS) != 0);
- PtNodeReader.readChildrenAddress(mDictBuffer, flags, formatOptions);
- if ((flags & FormatSpec.FLAG_IS_TERMINAL) != 0) PtNodeReader.readFrequency(mDictBuffer);
- if ((flags & FormatSpec.FLAG_HAS_SHORTCUT_TARGETS) != 0) {
- final int shortcutsSize = mDictBuffer.readUnsignedShort();
- mDictBuffer.position(mDictBuffer.position() + shortcutsSize
- - FormatSpec.PTNODE_SHORTCUT_LIST_SIZE_SIZE);
- }
- if ((flags & FormatSpec.FLAG_HAS_BIGRAMS) != 0) {
- int bigramCount = 0;
- while (bigramCount++ < FormatSpec.MAX_BIGRAMS_IN_A_PTNODE) {
- final int bigramFlags = mDictBuffer.readUnsignedByte();
- switch (bigramFlags & FormatSpec.MASK_BIGRAM_ATTR_ADDRESS_TYPE) {
- case FormatSpec.FLAG_BIGRAM_ATTR_ADDRESS_TYPE_ONEBYTE:
- mDictBuffer.readUnsignedByte();
- break;
- case FormatSpec.FLAG_BIGRAM_ATTR_ADDRESS_TYPE_TWOBYTES:
- mDictBuffer.readUnsignedShort();
- break;
- case FormatSpec.FLAG_BIGRAM_ATTR_ADDRESS_TYPE_THREEBYTES:
- mDictBuffer.readUnsignedInt24();
- break;
- }
- if ((bigramFlags & FormatSpec.FLAG_BIGRAM_SHORTCUT_ATTR_HAS_NEXT) == 0) break;
- }
- if (bigramCount >= FormatSpec.MAX_BIGRAMS_IN_A_PTNODE) {
- throw new RuntimeException("Too many bigrams in a PtNode.");
- }
- }
- }
-}