Merge "Use native logic to read Ver4 dict."
This commit is contained in:
Keisuke Kuroyanagi
Android (Google) Code Review
commit
6422f77e94
8 changed files with 106 additions and 1066 deletions
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@ -22,6 +22,7 @@ import com.android.inputmethod.latin.makedict.BinaryDictDecoderUtils.DictBuffer;
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import com.android.inputmethod.latin.makedict.FormatSpec.FormatOptions;
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import com.android.inputmethod.latin.makedict.FusionDictionary.WeightedString;
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import java.io.FileNotFoundException;
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import java.io.IOException;
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import java.util.ArrayList;
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import java.util.HashMap;
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@ -223,4 +224,49 @@ public abstract class AbstractDictDecoder implements DictDecoder {
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public boolean hasValidRawBinaryDictionary() {
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return checkHeader() == SUCCESS;
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}
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// Placeholder implementations below. These are actually unused.
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@Override
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public void openDictBuffer() throws FileNotFoundException, IOException,
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UnsupportedFormatException {
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}
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@Override
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public boolean isDictBufferOpen() {
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return false;
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}
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@Override
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public PtNodeInfo readPtNode(final int ptNodePos, final FormatOptions options) {
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return null;
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}
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@Override
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public void setPosition(int newPos) {
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}
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@Override
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public int getPosition() {
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return 0;
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}
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@Override
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public int readPtNodeCount() {
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return 0;
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}
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@Override
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public boolean readAndFollowForwardLink() {
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return false;
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}
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@Override
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public boolean hasNextPtNodeArray() {
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return false;
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}
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@Override
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@UsedForTesting
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public void skipPtNode(final FormatOptions formatOptions) {
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}
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}
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@ -436,25 +436,25 @@ public final class FusionDictionary implements Iterable<WordProperty> {
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/**
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* Helper method to add a new bigram to the dictionary.
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*
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* @param word1 the previous word of the context
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* @param word2 the next word of the context
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* @param word0 the previous word of the context
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* @param word1 the next word of the context
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* @param frequency the bigram frequency
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*/
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public void setBigram(final String word1, final String word2, final int frequency) {
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PtNode ptNode = findWordInTree(mRootNodeArray, word1);
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if (ptNode != null) {
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final PtNode ptNode2 = findWordInTree(mRootNodeArray, word2);
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if (ptNode2 == null) {
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add(getCodePoints(word2), 0, null, false /* isNotAWord */,
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public void setBigram(final String word0, final String word1, final int frequency) {
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PtNode ptNode0 = findWordInTree(mRootNodeArray, word0);
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if (ptNode0 != null) {
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final PtNode ptNode1 = findWordInTree(mRootNodeArray, word1);
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if (ptNode1 == null) {
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add(getCodePoints(word1), 0, null, false /* isNotAWord */,
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false /* isBlacklistEntry */);
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// The PtNode for the first word may have moved by the above insertion,
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// if word1 and word2 share a common stem that happens not to have been
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// a cutting point until now. In this case, we need to refresh ptNode.
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ptNode = findWordInTree(mRootNodeArray, word1);
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ptNode0 = findWordInTree(mRootNodeArray, word0);
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}
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ptNode.addBigram(word2, frequency);
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ptNode0.addBigram(word1, frequency);
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} else {
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throw new RuntimeException("First word of bigram not found");
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throw new RuntimeException("First word of bigram not found " + word0);
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}
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}
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@ -1,223 +0,0 @@
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/*
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* Copyright (C) 2013 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.inputmethod.latin.makedict;
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import com.android.inputmethod.annotations.UsedForTesting;
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import com.android.inputmethod.latin.utils.CollectionUtils;
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import java.io.File;
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import java.io.FileInputStream;
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import java.io.FileOutputStream;
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import java.io.IOException;
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import java.io.OutputStream;
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import java.util.ArrayList;
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import java.util.Collections;
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/**
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* SparseTable is an extensible map from integer to integer.
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* This holds one value for every mBlockSize keys, so it uses 1/mBlockSize'th of the full index
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* memory.
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*/
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@UsedForTesting
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public class SparseTable {
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/**
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* mLookupTable is indexed by terminal ID, containing exactly one entry for every mBlockSize
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* terminals.
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* It contains at index i = j / mBlockSize the index in each ArrayList in mContentsTables where
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* the values for terminals with IDs j to j + mBlockSize - 1 are stored as an mBlockSize-sized
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* integer array.
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*/
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private final ArrayList<Integer> mLookupTable;
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private final ArrayList<ArrayList<Integer>> mContentTables;
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private final int mBlockSize;
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private final int mContentTableCount;
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public static final int NOT_EXIST = -1;
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public static final int SIZE_OF_INT_IN_BYTES = 4;
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@UsedForTesting
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public SparseTable(final int initialCapacity, final int blockSize,
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final int contentTableCount) {
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mBlockSize = blockSize;
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final int lookupTableSize = initialCapacity / mBlockSize
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+ (initialCapacity % mBlockSize > 0 ? 1 : 0);
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mLookupTable = new ArrayList<Integer>(Collections.nCopies(lookupTableSize, NOT_EXIST));
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mContentTableCount = contentTableCount;
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mContentTables = CollectionUtils.newArrayList();
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for (int i = 0; i < mContentTableCount; ++i) {
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mContentTables.add(new ArrayList<Integer>());
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}
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}
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@UsedForTesting
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public SparseTable(final ArrayList<Integer> lookupTable,
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final ArrayList<ArrayList<Integer>> contentTables, final int blockSize) {
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mBlockSize = blockSize;
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mContentTableCount = contentTables.size();
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mLookupTable = lookupTable;
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mContentTables = contentTables;
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}
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/**
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* Converts an byte array to an int array considering each set of 4 bytes is an int stored in
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* big-endian.
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* The length of byteArray must be a multiple of four.
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* Otherwise, IndexOutOfBoundsException will be raised.
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*/
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@UsedForTesting
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private static ArrayList<Integer> convertByteArrayToIntegerArray(final byte[] byteArray) {
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final ArrayList<Integer> integerArray = new ArrayList<Integer>(byteArray.length / 4);
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for (int i = 0; i < byteArray.length; i += 4) {
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int value = 0;
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for (int j = i; j < i + 4; ++j) {
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value <<= 8;
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value |= byteArray[j] & 0xFF;
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}
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integerArray.add(value);
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}
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return integerArray;
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}
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@UsedForTesting
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public int get(final int contentTableIndex, final int index) {
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if (!contains(index)) {
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return NOT_EXIST;
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}
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return mContentTables.get(contentTableIndex).get(
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mLookupTable.get(index / mBlockSize) + (index % mBlockSize));
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}
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@UsedForTesting
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public ArrayList<Integer> getAll(final int index) {
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final ArrayList<Integer> ret = CollectionUtils.newArrayList();
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for (int i = 0; i < mContentTableCount; ++i) {
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ret.add(get(i, index));
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}
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return ret;
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}
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@UsedForTesting
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public void set(final int contentTableIndex, final int index, final int value) {
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if (mLookupTable.get(index / mBlockSize) == NOT_EXIST) {
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mLookupTable.set(index / mBlockSize, mContentTables.get(contentTableIndex).size());
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for (int i = 0; i < mContentTableCount; ++i) {
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for (int j = 0; j < mBlockSize; ++j) {
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mContentTables.get(i).add(NOT_EXIST);
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}
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}
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}
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mContentTables.get(contentTableIndex).set(
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mLookupTable.get(index / mBlockSize) + (index % mBlockSize), value);
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}
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public void remove(final int indexOfContent, final int index) {
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set(indexOfContent, index, NOT_EXIST);
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}
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@UsedForTesting
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public int size() {
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return mLookupTable.size() * mBlockSize;
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}
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@UsedForTesting
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/* package */ int getContentTableSize() {
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// This class always has at least one content table.
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return mContentTables.get(0).size();
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}
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@UsedForTesting
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/* package */ int getLookupTableSize() {
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return mLookupTable.size();
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}
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public boolean contains(final int index) {
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if (index < 0 || index / mBlockSize >= mLookupTable.size()
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|| mLookupTable.get(index / mBlockSize) == NOT_EXIST) {
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return false;
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}
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return true;
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}
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@UsedForTesting
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public void write(final OutputStream lookupOutStream, final OutputStream[] contentOutStreams)
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throws IOException {
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if (contentOutStreams.length != mContentTableCount) {
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throw new RuntimeException(contentOutStreams.length + " streams are given, but the"
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+ " table has " + mContentTableCount + " content tables.");
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}
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for (final int index : mLookupTable) {
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BinaryDictEncoderUtils.writeUIntToStream(lookupOutStream, index, SIZE_OF_INT_IN_BYTES);
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}
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for (int i = 0; i < contentOutStreams.length; ++i) {
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for (final int data : mContentTables.get(i)) {
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BinaryDictEncoderUtils.writeUIntToStream(contentOutStreams[i], data,
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SIZE_OF_INT_IN_BYTES);
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}
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}
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}
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@UsedForTesting
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public void writeToFiles(final File lookupTableFile, final File[] contentFiles)
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throws IOException {
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FileOutputStream lookupTableOutStream = null;
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final FileOutputStream[] contentTableOutStreams = new FileOutputStream[mContentTableCount];
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try {
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lookupTableOutStream = new FileOutputStream(lookupTableFile);
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for (int i = 0; i < contentFiles.length; ++i) {
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contentTableOutStreams[i] = new FileOutputStream(contentFiles[i]);
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}
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write(lookupTableOutStream, contentTableOutStreams);
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} finally {
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if (lookupTableOutStream != null) {
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lookupTableOutStream.close();
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}
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for (int i = 0; i < contentTableOutStreams.length; ++i) {
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if (contentTableOutStreams[i] != null) {
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contentTableOutStreams[i].close();
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}
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}
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}
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}
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private static byte[] readFileToByteArray(final File file) throws IOException {
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final byte[] contents = new byte[(int) file.length()];
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FileInputStream inStream = null;
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try {
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inStream = new FileInputStream(file);
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inStream.read(contents);
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} finally {
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if (inStream != null) {
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inStream.close();
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}
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}
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return contents;
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}
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@UsedForTesting
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public static SparseTable readFromFiles(final File lookupTableFile, final File[] contentFiles,
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final int blockSize) throws IOException {
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final ArrayList<ArrayList<Integer>> contentTables =
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new ArrayList<ArrayList<Integer>>(contentFiles.length);
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for (int i = 0; i < contentFiles.length; ++i) {
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contentTables.add(convertByteArrayToIntegerArray(readFileToByteArray(contentFiles[i])));
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}
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return new SparseTable(convertByteArrayToIntegerArray(readFileToByteArray(lookupTableFile)),
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contentTables, blockSize);
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}
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}
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@ -1,126 +0,0 @@
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/*
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* Copyright (C) 2013 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.inputmethod.latin.makedict;
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import com.android.inputmethod.latin.makedict.BinaryDictDecoderUtils.DictBuffer;
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import com.android.inputmethod.latin.makedict.DictDecoder.DictionaryBufferFactory;
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import java.io.File;
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import java.io.FileNotFoundException;
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import java.io.IOException;
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/**
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* An auxiliary class for reading SparseTable and data written by SparseTableContentWriter.
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*/
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public class SparseTableContentReader {
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/**
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* An interface of a function which is passed to SparseTableContentReader.read.
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*/
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public interface SparseTableContentReaderInterface {
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/**
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* Reads data.
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*
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* @param buffer the DictBuffer. The position of the buffer is set to the head of data.
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*/
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public void read(final DictBuffer buffer);
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}
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protected final int mContentCount;
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protected final int mBlockSize;
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protected final File mBaseDir;
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protected final File mLookupTableFile;
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protected final File[] mAddressTableFiles;
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protected final File[] mContentFiles;
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protected DictBuffer mLookupTableBuffer;
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protected final DictBuffer[] mAddressTableBuffers;
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private final DictBuffer[] mContentBuffers;
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protected final DictionaryBufferFactory mFactory;
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/**
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* Sole constructor of SparseTableContentReader.
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*
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* @param name the name of SparseTable.
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* @param blockSize the block size of the content table.
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* @param baseDir the directory which contains the files of the content table.
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* @param contentFilenames the file names of content files.
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* @param contentSuffixes the ids of contents. These ids are used for a suffix of a name of
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* address files and content files.
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* @param factory the DictionaryBufferFactory which is used for opening the files.
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*/
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public SparseTableContentReader(final String name, final int blockSize, final File baseDir,
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final String[] contentFilenames, final String[] contentSuffixes,
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final DictionaryBufferFactory factory) {
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if (contentFilenames.length != contentSuffixes.length) {
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throw new RuntimeException("The length of contentFilenames and the length of"
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+ " contentSuffixes are different " + contentFilenames.length + ", "
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+ contentSuffixes.length);
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}
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mBlockSize = blockSize;
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mBaseDir = baseDir;
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mFactory = factory;
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mContentCount = contentFilenames.length;
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mLookupTableFile = new File(baseDir, name + FormatSpec.LOOKUP_TABLE_FILE_SUFFIX);
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mAddressTableFiles = new File[mContentCount];
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mContentFiles = new File[mContentCount];
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for (int i = 0; i < mContentCount; ++i) {
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mAddressTableFiles[i] = new File(mBaseDir,
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name + FormatSpec.CONTENT_TABLE_FILE_SUFFIX + contentSuffixes[i]);
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mContentFiles[i] = new File(mBaseDir, contentFilenames[i] + contentSuffixes[i]);
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}
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mAddressTableBuffers = new DictBuffer[mContentCount];
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mContentBuffers = new DictBuffer[mContentCount];
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}
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public void openBuffers() throws FileNotFoundException, IOException {
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mLookupTableBuffer = mFactory.getDictionaryBuffer(mLookupTableFile);
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for (int i = 0; i < mContentCount; ++i) {
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mAddressTableBuffers[i] = mFactory.getDictionaryBuffer(mAddressTableFiles[i]);
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mContentBuffers[i] = mFactory.getDictionaryBuffer(mContentFiles[i]);
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}
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}
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/**
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* Calls the read() callback of the reader with the appropriate buffer appropriately positioned.
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* @param contentNumber the index in the original contentFilenames[] array.
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* @param terminalId the terminal ID to read.
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* @param reader the reader on which to call the callback.
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*/
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protected void read(final int contentNumber, final int terminalId,
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final SparseTableContentReaderInterface reader) {
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if (terminalId < 0 || (terminalId / mBlockSize) * SparseTable.SIZE_OF_INT_IN_BYTES
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>= mLookupTableBuffer.limit()) {
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return;
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}
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mLookupTableBuffer.position((terminalId / mBlockSize) * SparseTable.SIZE_OF_INT_IN_BYTES);
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final int indexInAddressTable = mLookupTableBuffer.readInt();
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if (indexInAddressTable == SparseTable.NOT_EXIST) {
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return;
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}
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mAddressTableBuffers[contentNumber].position(SparseTable.SIZE_OF_INT_IN_BYTES
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* ((indexInAddressTable * mBlockSize) + (terminalId % mBlockSize)));
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final int address = mAddressTableBuffers[contentNumber].readInt();
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if (address == SparseTable.NOT_EXIST) {
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return;
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}
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mContentBuffers[contentNumber].position(address);
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reader.read(mContentBuffers[contentNumber]);
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}
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}
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@ -1,93 +0,0 @@
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/*
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* Copyright (C) 2013 The Android Open Source Project
|
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*
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||||
* 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.
|
||||
*/
|
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package com.android.inputmethod.latin.makedict;
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import java.io.File;
|
||||
import java.io.FileNotFoundException;
|
||||
import java.io.FileOutputStream;
|
||||
import java.io.IOException;
|
||||
import java.io.OutputStream;
|
||||
|
||||
/**
|
||||
* An auxiliary class for writing data associated with SparseTable to files.
|
||||
*/
|
||||
public class SparseTableContentWriter {
|
||||
public interface SparseTableContentWriterInterface {
|
||||
public void write(final OutputStream outStream) throws IOException;
|
||||
}
|
||||
|
||||
private final int mContentCount;
|
||||
private final SparseTable mSparseTable;
|
||||
private final File mLookupTableFile;
|
||||
protected final File mBaseDir;
|
||||
private final File[] mAddressTableFiles;
|
||||
private final File[] mContentFiles;
|
||||
protected final OutputStream[] mContentOutStreams;
|
||||
|
||||
/**
|
||||
* Sole constructor of SparseTableContentWriter.
|
||||
*
|
||||
* @param name the name of SparseTable.
|
||||
* @param initialCapacity the initial capacity of SparseTable.
|
||||
* @param blockSize the block size of the content table.
|
||||
* @param baseDir the directory which contains the files of the content table.
|
||||
* @param contentFilenames the file names of content files.
|
||||
* @param contentIds the ids of contents. These ids are used for a suffix of a name of address
|
||||
* files and content files.
|
||||
*/
|
||||
public SparseTableContentWriter(final String name, final int initialCapacity,
|
||||
final int blockSize, final File baseDir, final String[] contentFilenames,
|
||||
final String[] contentIds) {
|
||||
if (contentFilenames.length != contentIds.length) {
|
||||
throw new RuntimeException("The length of contentFilenames and the length of"
|
||||
+ " contentIds are different " + contentFilenames.length + ", "
|
||||
+ contentIds.length);
|
||||
}
|
||||
mContentCount = contentFilenames.length;
|
||||
mSparseTable = new SparseTable(initialCapacity, blockSize, mContentCount);
|
||||
mLookupTableFile = new File(baseDir, name + FormatSpec.LOOKUP_TABLE_FILE_SUFFIX);
|
||||
mAddressTableFiles = new File[mContentCount];
|
||||
mContentFiles = new File[mContentCount];
|
||||
mBaseDir = baseDir;
|
||||
for (int i = 0; i < mContentCount; ++i) {
|
||||
mAddressTableFiles[i] = new File(mBaseDir,
|
||||
name + FormatSpec.CONTENT_TABLE_FILE_SUFFIX + contentIds[i]);
|
||||
mContentFiles[i] = new File(mBaseDir, contentFilenames[i] + contentIds[i]);
|
||||
}
|
||||
mContentOutStreams = new OutputStream[mContentCount];
|
||||
}
|
||||
|
||||
public void openStreams() throws FileNotFoundException {
|
||||
for (int i = 0; i < mContentCount; ++i) {
|
||||
mContentOutStreams[i] = new FileOutputStream(mContentFiles[i]);
|
||||
}
|
||||
}
|
||||
|
||||
protected void write(final int contentIndex, final int index,
|
||||
final SparseTableContentWriterInterface writer) throws IOException {
|
||||
mSparseTable.set(contentIndex, index, (int) mContentFiles[contentIndex].length());
|
||||
writer.write(mContentOutStreams[contentIndex]);
|
||||
mContentOutStreams[contentIndex].flush();
|
||||
}
|
||||
|
||||
public void closeStreams() throws IOException {
|
||||
mSparseTable.writeToFiles(mLookupTableFile, mAddressTableFiles);
|
||||
for (int i = 0; i < mContentCount; ++i) {
|
||||
mContentOutStreams[i].close();
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
@ -17,20 +17,15 @@
|
|||
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.FormatOptions;
|
||||
import com.android.inputmethod.latin.makedict.FusionDictionary.PtNode;
|
||||
import com.android.inputmethod.latin.BinaryDictionary;
|
||||
import com.android.inputmethod.latin.makedict.FusionDictionary.WeightedString;
|
||||
import com.android.inputmethod.latin.utils.CollectionUtils;
|
||||
|
||||
import android.util.Log;
|
||||
import com.android.inputmethod.latin.utils.FileUtils;
|
||||
|
||||
import java.io.File;
|
||||
import java.io.FileNotFoundException;
|
||||
import java.io.IOException;
|
||||
import java.util.ArrayList;
|
||||
import java.util.Arrays;
|
||||
|
||||
/**
|
||||
* An implementation of binary dictionary decoder for version 4 binary dictionary.
|
||||
|
|
@ -39,421 +34,74 @@ import java.util.Arrays;
|
|||
public class Ver4DictDecoder extends AbstractDictDecoder {
|
||||
private static final String TAG = Ver4DictDecoder.class.getSimpleName();
|
||||
|
||||
protected static final int FILETYPE_TRIE = 1;
|
||||
protected static final int FILETYPE_FREQUENCY = 2;
|
||||
protected static final int FILETYPE_TERMINAL_ADDRESS_TABLE = 3;
|
||||
protected static final int FILETYPE_BIGRAM_FREQ = 4;
|
||||
protected static final int FILETYPE_SHORTCUT = 5;
|
||||
protected static final int FILETYPE_HEADER = 6;
|
||||
|
||||
protected final File mDictDirectory;
|
||||
protected final DictionaryBufferFactory mBufferFactory;
|
||||
protected DictBuffer mDictBuffer;
|
||||
protected DictBuffer mHeaderBuffer;
|
||||
protected DictBuffer mFrequencyBuffer;
|
||||
protected DictBuffer mTerminalAddressTableBuffer;
|
||||
private BigramContentReader mBigramReader;
|
||||
private ShortcutContentReader mShortcutReader;
|
||||
|
||||
/**
|
||||
* Raw PtNode info straight out of a trie file in version 4 dictionary.
|
||||
*/
|
||||
protected static final class Ver4PtNodeInfo {
|
||||
public final int mFlags;
|
||||
public final int[] mCharacters;
|
||||
public final int mTerminalId;
|
||||
public final int mChildrenPos;
|
||||
public final int mParentPos;
|
||||
public final int mNodeSize;
|
||||
public int mStartIndexOfCharacters;
|
||||
public int mEndIndexOfCharacters; // exclusive
|
||||
|
||||
public Ver4PtNodeInfo(final int flags, final int[] characters, final int terminalId,
|
||||
final int childrenPos, final int parentPos, final int nodeSize) {
|
||||
mFlags = flags;
|
||||
mCharacters = characters;
|
||||
mTerminalId = terminalId;
|
||||
mChildrenPos = childrenPos;
|
||||
mParentPos = parentPos;
|
||||
mNodeSize = nodeSize;
|
||||
mStartIndexOfCharacters = 0;
|
||||
mEndIndexOfCharacters = characters.length;
|
||||
}
|
||||
}
|
||||
final File mDictDirectory;
|
||||
final BinaryDictionary mBinaryDictionary;
|
||||
|
||||
@UsedForTesting
|
||||
/* package */ Ver4DictDecoder(final File dictDirectory, final int factoryFlag) {
|
||||
mDictDirectory = dictDirectory;
|
||||
mDictBuffer = mHeaderBuffer = mFrequencyBuffer = 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();
|
||||
}
|
||||
this(dictDirectory, null /* factory */);
|
||||
}
|
||||
|
||||
@UsedForTesting
|
||||
/* package */ Ver4DictDecoder(final File dictDirectory, final DictionaryBufferFactory factory) {
|
||||
mDictDirectory = dictDirectory;
|
||||
mBufferFactory = factory;
|
||||
mDictBuffer = mHeaderBuffer = mFrequencyBuffer = null;
|
||||
}
|
||||
|
||||
protected File getFile(final int fileType) throws UnsupportedFormatException {
|
||||
if (fileType == FILETYPE_TRIE) {
|
||||
return new File(mDictDirectory,
|
||||
mDictDirectory.getName() + FormatSpec.TRIE_FILE_EXTENSION);
|
||||
} else if (fileType == FILETYPE_HEADER) {
|
||||
return new File(mDictDirectory,
|
||||
mDictDirectory.getName() + FormatSpec.HEADER_FILE_EXTENSION);
|
||||
} else if (fileType == FILETYPE_FREQUENCY) {
|
||||
return new File(mDictDirectory,
|
||||
mDictDirectory.getName() + FormatSpec.FREQ_FILE_EXTENSION);
|
||||
} else if (fileType == FILETYPE_TERMINAL_ADDRESS_TABLE) {
|
||||
return new File(mDictDirectory,
|
||||
mDictDirectory.getName() + FormatSpec.TERMINAL_ADDRESS_TABLE_FILE_EXTENSION);
|
||||
} else if (fileType == FILETYPE_BIGRAM_FREQ) {
|
||||
return new File(mDictDirectory,
|
||||
mDictDirectory.getName() + FormatSpec.BIGRAM_FILE_EXTENSION
|
||||
+ FormatSpec.BIGRAM_FREQ_CONTENT_ID);
|
||||
} else if (fileType == FILETYPE_SHORTCUT) {
|
||||
return new File(mDictDirectory,
|
||||
mDictDirectory.getName() + FormatSpec.SHORTCUT_FILE_EXTENSION
|
||||
+ FormatSpec.SHORTCUT_CONTENT_ID);
|
||||
} else {
|
||||
throw new UnsupportedFormatException("Unsupported kind of file : " + fileType);
|
||||
}
|
||||
}
|
||||
|
||||
@Override
|
||||
public void openDictBuffer() throws FileNotFoundException, IOException,
|
||||
UnsupportedFormatException {
|
||||
if (!mDictDirectory.isDirectory()) {
|
||||
throw new UnsupportedFormatException("Format 4 dictionary needs a directory");
|
||||
}
|
||||
mHeaderBuffer = mBufferFactory.getDictionaryBuffer(getFile(FILETYPE_HEADER));
|
||||
mDictBuffer = mBufferFactory.getDictionaryBuffer(getFile(FILETYPE_TRIE));
|
||||
mFrequencyBuffer = mBufferFactory.getDictionaryBuffer(getFile(FILETYPE_FREQUENCY));
|
||||
mTerminalAddressTableBuffer = mBufferFactory.getDictionaryBuffer(
|
||||
getFile(FILETYPE_TERMINAL_ADDRESS_TABLE));
|
||||
mBigramReader = new BigramContentReader(mDictDirectory.getName(),
|
||||
mDictDirectory, mBufferFactory);
|
||||
mBigramReader.openBuffers();
|
||||
mShortcutReader = new ShortcutContentReader(mDictDirectory.getName(), mDictDirectory,
|
||||
mBufferFactory);
|
||||
mShortcutReader.openBuffers();
|
||||
}
|
||||
|
||||
@Override
|
||||
public boolean isDictBufferOpen() {
|
||||
return mDictBuffer != null;
|
||||
}
|
||||
|
||||
@UsedForTesting
|
||||
/* package */ DictBuffer getHeaderBuffer() {
|
||||
return mHeaderBuffer;
|
||||
}
|
||||
|
||||
@UsedForTesting
|
||||
/* package */ DictBuffer getDictBuffer() {
|
||||
return mDictBuffer;
|
||||
mBinaryDictionary = new BinaryDictionary(dictDirectory.getAbsolutePath(),
|
||||
0 /* offset */, 0 /* length */, true /* useFullEditDistance */, null /* locale */,
|
||||
"" /* dictType */, true /* isUpdatable */);
|
||||
}
|
||||
|
||||
@Override
|
||||
public DictionaryHeader readHeader() throws IOException, UnsupportedFormatException {
|
||||
if (mHeaderBuffer == null) {
|
||||
openDictBuffer();
|
||||
}
|
||||
mHeaderBuffer.position(0);
|
||||
final DictionaryHeader header = super.readHeader(mHeaderBuffer);
|
||||
final int version = header.mFormatOptions.mVersion;
|
||||
if (version != FormatSpec.VERSION4) {
|
||||
throw new UnsupportedFormatException("File header has a wrong version : " + version);
|
||||
}
|
||||
return header;
|
||||
}
|
||||
|
||||
/**
|
||||
* An auxiliary class for reading bigrams.
|
||||
*/
|
||||
protected static class BigramContentReader extends SparseTableContentReader {
|
||||
public BigramContentReader(final String name, final File baseDir,
|
||||
final DictionaryBufferFactory factory) {
|
||||
super(name + FormatSpec.BIGRAM_FILE_EXTENSION,
|
||||
FormatSpec.BIGRAM_ADDRESS_TABLE_BLOCK_SIZE, baseDir,
|
||||
getContentFilenames(name), getContentIds(), factory);
|
||||
}
|
||||
|
||||
// TODO: Consolidate this method and BigramContentWriter.getContentFilenames.
|
||||
protected static String[] getContentFilenames(final String name) {
|
||||
return new String[] { name + FormatSpec.BIGRAM_FILE_EXTENSION };
|
||||
}
|
||||
|
||||
// TODO: Consolidate this method and BigramContentWriter.getContentIds.
|
||||
protected static String[] getContentIds() {
|
||||
return new String[] { FormatSpec.BIGRAM_FREQ_CONTENT_ID };
|
||||
}
|
||||
|
||||
public ArrayList<PendingAttribute> readTargetsAndFrequencies(final int terminalId,
|
||||
final DictBuffer terminalAddressTableBuffer, final FormatOptions options) {
|
||||
final ArrayList<PendingAttribute> bigrams = CollectionUtils.newArrayList();
|
||||
read(FormatSpec.BIGRAM_FREQ_CONTENT_INDEX, terminalId,
|
||||
new SparseTableContentReaderInterface() {
|
||||
@Override
|
||||
public void read(final DictBuffer buffer) {
|
||||
while (bigrams.size() < FormatSpec.MAX_BIGRAMS_IN_A_PTNODE) {
|
||||
// If bigrams.size() reaches FormatSpec.MAX_BIGRAMS_IN_A_PTNODE,
|
||||
// remaining bigram entries are ignored.
|
||||
final int bigramFlags = buffer.readUnsignedByte();
|
||||
final int probability;
|
||||
|
||||
if (options.mHasTimestamp) {
|
||||
probability = buffer.readUnsignedByte();
|
||||
// Skip timestamp
|
||||
buffer.readInt();
|
||||
// Skip level
|
||||
buffer.readUnsignedByte();
|
||||
// Skip count
|
||||
buffer.readUnsignedByte();
|
||||
} else {
|
||||
probability = bigramFlags
|
||||
& FormatSpec.FLAG_BIGRAM_SHORTCUT_ATTR_FREQUENCY;
|
||||
}
|
||||
final int targetTerminalId = buffer.readUnsignedInt24();
|
||||
terminalAddressTableBuffer.position(targetTerminalId
|
||||
* FormatSpec.TERMINAL_ADDRESS_TABLE_ADDRESS_SIZE);
|
||||
final int targetAddress =
|
||||
terminalAddressTableBuffer.readUnsignedInt24();
|
||||
bigrams.add(new PendingAttribute(probability, targetAddress));
|
||||
if (0 == (bigramFlags
|
||||
& FormatSpec.FLAG_BIGRAM_SHORTCUT_ATTR_HAS_NEXT)) {
|
||||
break;
|
||||
}
|
||||
}
|
||||
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 + ")");
|
||||
}
|
||||
}
|
||||
});
|
||||
if (bigrams.isEmpty()) return null;
|
||||
return bigrams;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* An auxiliary class for reading shortcuts.
|
||||
*/
|
||||
protected static class ShortcutContentReader extends SparseTableContentReader {
|
||||
public ShortcutContentReader(final String name, final File baseDir,
|
||||
final DictionaryBufferFactory factory) {
|
||||
super(name + FormatSpec.SHORTCUT_FILE_EXTENSION,
|
||||
FormatSpec.SHORTCUT_ADDRESS_TABLE_BLOCK_SIZE, baseDir,
|
||||
new String[] { name + FormatSpec.SHORTCUT_FILE_EXTENSION },
|
||||
new String[] { FormatSpec.SHORTCUT_CONTENT_ID }, factory);
|
||||
}
|
||||
|
||||
public ArrayList<WeightedString> readShortcuts(final int terminalId) {
|
||||
final ArrayList<WeightedString> shortcuts = CollectionUtils.newArrayList();
|
||||
read(FormatSpec.SHORTCUT_CONTENT_INDEX, terminalId,
|
||||
new SparseTableContentReaderInterface() {
|
||||
@Override
|
||||
public void read(final DictBuffer buffer) {
|
||||
while (true) {
|
||||
final int flags = buffer.readUnsignedByte();
|
||||
final String word = CharEncoding.readString(buffer);
|
||||
shortcuts.add(new WeightedString(word,
|
||||
flags & FormatSpec.FLAG_BIGRAM_SHORTCUT_ATTR_FREQUENCY));
|
||||
if (0 == (flags & FormatSpec.FLAG_BIGRAM_SHORTCUT_ATTR_HAS_NEXT)) {
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
});
|
||||
if (shortcuts.isEmpty()) return null;
|
||||
return shortcuts;
|
||||
}
|
||||
}
|
||||
|
||||
protected static class PtNodeReader extends AbstractDictDecoder.PtNodeReader {
|
||||
protected static int readFrequency(final DictBuffer frequencyBuffer, final int terminalId,
|
||||
final FormatOptions formatOptions) {
|
||||
final int readingPos;
|
||||
if (formatOptions.mHasTimestamp) {
|
||||
final int entrySize = FormatSpec.FREQUENCY_AND_FLAGS_SIZE
|
||||
+ FormatSpec.UNIGRAM_TIMESTAMP_SIZE + FormatSpec.UNIGRAM_LEVEL_SIZE
|
||||
+ FormatSpec.UNIGRAM_COUNTER_SIZE;
|
||||
readingPos = terminalId * entrySize + FormatSpec.FLAGS_IN_FREQ_FILE_SIZE;
|
||||
} else {
|
||||
readingPos = terminalId * FormatSpec.FREQUENCY_AND_FLAGS_SIZE
|
||||
+ FormatSpec.FLAGS_IN_FREQ_FILE_SIZE;
|
||||
}
|
||||
frequencyBuffer.position(readingPos);
|
||||
return frequencyBuffer.readUnsignedByte();
|
||||
}
|
||||
|
||||
protected static int readTerminalId(final DictBuffer dictBuffer) {
|
||||
return dictBuffer.readInt();
|
||||
}
|
||||
}
|
||||
|
||||
private final int[] mCharacterBufferForReadingVer4PtNodeInfo
|
||||
= new int[FormatSpec.MAX_WORD_LENGTH];
|
||||
|
||||
/**
|
||||
* Reads PtNode from ptNodePos in the trie file and returns Ver4PtNodeInfo.
|
||||
*
|
||||
* @param ptNodePos the position of PtNode.
|
||||
* @param options the format options.
|
||||
* @return Ver4PtNodeInfo.
|
||||
*/
|
||||
// TODO: Make this buffer thread safe.
|
||||
// TODO: Support words longer than FormatSpec.MAX_WORD_LENGTH.
|
||||
protected Ver4PtNodeInfo readVer4PtNodeInfo(final int ptNodePos, final FormatOptions options) {
|
||||
int readingPos = ptNodePos;
|
||||
final int flags = PtNodeReader.readPtNodeOptionFlags(mDictBuffer);
|
||||
readingPos += FormatSpec.PTNODE_FLAGS_SIZE;
|
||||
|
||||
final int parentPos = PtNodeReader.readParentAddress(mDictBuffer, options);
|
||||
if (BinaryDictIOUtils.supportsDynamicUpdate(options)) {
|
||||
readingPos += FormatSpec.PARENT_ADDRESS_SIZE;
|
||||
}
|
||||
|
||||
final int characters[];
|
||||
if (0 != (flags & FormatSpec.FLAG_HAS_MULTIPLE_CHARS)) {
|
||||
int index = 0;
|
||||
int character = CharEncoding.readChar(mDictBuffer);
|
||||
readingPos += CharEncoding.getCharSize(character);
|
||||
while (FormatSpec.INVALID_CHARACTER != character
|
||||
&& index < FormatSpec.MAX_WORD_LENGTH) {
|
||||
mCharacterBufferForReadingVer4PtNodeInfo[index++] = character;
|
||||
character = CharEncoding.readChar(mDictBuffer);
|
||||
readingPos += CharEncoding.getCharSize(character);
|
||||
}
|
||||
characters = Arrays.copyOfRange(mCharacterBufferForReadingVer4PtNodeInfo, 0, index);
|
||||
} else {
|
||||
final int character = CharEncoding.readChar(mDictBuffer);
|
||||
readingPos += CharEncoding.getCharSize(character);
|
||||
characters = new int[] { character };
|
||||
}
|
||||
final int terminalId;
|
||||
if (0 != (FormatSpec.FLAG_IS_TERMINAL & flags)) {
|
||||
terminalId = PtNodeReader.readTerminalId(mDictBuffer);
|
||||
readingPos += FormatSpec.PTNODE_TERMINAL_ID_SIZE;
|
||||
} else {
|
||||
terminalId = PtNode.NOT_A_TERMINAL;
|
||||
}
|
||||
|
||||
int childrenPos = PtNodeReader.readChildrenAddress(mDictBuffer, flags, options);
|
||||
if (childrenPos != FormatSpec.NO_CHILDREN_ADDRESS) {
|
||||
childrenPos += readingPos;
|
||||
}
|
||||
readingPos += BinaryDictIOUtils.getChildrenAddressSize(flags, options);
|
||||
|
||||
return new Ver4PtNodeInfo(flags, characters, terminalId, childrenPos, parentPos,
|
||||
readingPos - ptNodePos);
|
||||
}
|
||||
|
||||
@Override
|
||||
public PtNodeInfo readPtNode(final int ptNodePos, final FormatOptions options) {
|
||||
final Ver4PtNodeInfo nodeInfo = readVer4PtNodeInfo(ptNodePos, options);
|
||||
|
||||
final int frequency;
|
||||
if (0 != (FormatSpec.FLAG_IS_TERMINAL & nodeInfo.mFlags)) {
|
||||
frequency = PtNodeReader.readFrequency(mFrequencyBuffer, nodeInfo.mTerminalId, options);
|
||||
} else {
|
||||
frequency = PtNode.NOT_A_TERMINAL;
|
||||
}
|
||||
|
||||
final ArrayList<WeightedString> shortcutTargets = mShortcutReader.readShortcuts(
|
||||
nodeInfo.mTerminalId);
|
||||
final ArrayList<PendingAttribute> bigrams = mBigramReader.readTargetsAndFrequencies(
|
||||
nodeInfo.mTerminalId, mTerminalAddressTableBuffer, options);
|
||||
|
||||
return new PtNodeInfo(ptNodePos, ptNodePos + nodeInfo.mNodeSize, nodeInfo.mFlags,
|
||||
nodeInfo.mCharacters, frequency, nodeInfo.mParentPos, nodeInfo.mChildrenPos,
|
||||
shortcutTargets, bigrams);
|
||||
}
|
||||
|
||||
private void deleteDictFiles() {
|
||||
final File[] files = mDictDirectory.listFiles();
|
||||
for (int i = 0; i < files.length; ++i) {
|
||||
files[i].delete();
|
||||
}
|
||||
return mBinaryDictionary.getHeader();
|
||||
}
|
||||
|
||||
@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 " + mDictDirectory.getName() + " is broken.", e);
|
||||
if (deleteDictIfBroken) {
|
||||
deleteDictFiles();
|
||||
final DictionaryHeader header = readHeader();
|
||||
final FusionDictionary fusionDict = dict != null ? dict :
|
||||
new FusionDictionary(new FusionDictionary.PtNodeArray(), header.mDictionaryOptions);
|
||||
int token = 0;
|
||||
final ArrayList<WordProperty> wordProperties = CollectionUtils.newArrayList();
|
||||
do {
|
||||
final BinaryDictionary.GetNextWordPropertyResult result =
|
||||
mBinaryDictionary.getNextWordProperty(token);
|
||||
final WordProperty wordProperty = result.mWordProperty;
|
||||
if (wordProperty == null) {
|
||||
if (deleteDictIfBroken) {
|
||||
mBinaryDictionary.close();
|
||||
FileUtils.deleteRecursively(mDictDirectory);
|
||||
}
|
||||
return null;
|
||||
}
|
||||
throw e;
|
||||
} catch (UnsupportedFormatException e) {
|
||||
Log.e(TAG, "The dictionary " + mDictDirectory.getName() + " is broken.", e);
|
||||
if (deleteDictIfBroken) {
|
||||
deleteDictFiles();
|
||||
}
|
||||
throw e;
|
||||
}
|
||||
}
|
||||
wordProperties.add(wordProperty);
|
||||
token = result.mNextToken;
|
||||
} while (token != 0);
|
||||
|
||||
@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 forwardLinkPos = mDictBuffer.position();
|
||||
int nextRelativePos = BinaryDictDecoderUtils.readSInt24(mDictBuffer);
|
||||
if (nextRelativePos != FormatSpec.NO_FORWARD_LINK_ADDRESS) {
|
||||
final int nextPos = forwardLinkPos + nextRelativePos;
|
||||
if (nextPos >= 0 && nextPos < mDictBuffer.limit()) {
|
||||
mDictBuffer.position(nextPos);
|
||||
return true;
|
||||
// Insert unigrams to the fusion dictionary.
|
||||
for (final WordProperty wordProperty : wordProperties) {
|
||||
// TODO: Support probability that is -1.
|
||||
final int probability = wordProperty.getProbability() < 0 ?
|
||||
0 : wordProperty.getProbability();
|
||||
if (wordProperty.mIsBlacklistEntry) {
|
||||
fusionDict.addBlacklistEntry(wordProperty.mWord, wordProperty.mShortcutTargets,
|
||||
wordProperty.mIsNotAWord);
|
||||
} else {
|
||||
fusionDict.add(wordProperty.mWord, probability,
|
||||
wordProperty.mShortcutTargets, wordProperty.mIsNotAWord);
|
||||
}
|
||||
}
|
||||
return false;
|
||||
}
|
||||
|
||||
@Override
|
||||
public boolean hasNextPtNodeArray() {
|
||||
return mDictBuffer.position() != FormatSpec.NO_FORWARD_LINK_ADDRESS;
|
||||
}
|
||||
|
||||
@Override
|
||||
@UsedForTesting
|
||||
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);
|
||||
if ((flags & FormatSpec.FLAG_IS_TERMINAL) != 0) PtNodeReader.readTerminalId(mDictBuffer);
|
||||
PtNodeReader.readChildrenAddress(mDictBuffer, flags, formatOptions);
|
||||
// Insert bigrams to the fusion dictionary.
|
||||
for (final WordProperty wordProperty : wordProperties) {
|
||||
if (wordProperty.mBigrams == null) {
|
||||
continue;
|
||||
}
|
||||
final String word0 = wordProperty.mWord;
|
||||
for (final WeightedString bigram : wordProperty.mBigrams) {
|
||||
fusionDict.setBigram(word0, bigram.mWord, bigram.getProbability());
|
||||
}
|
||||
}
|
||||
return fusionDict;
|
||||
}
|
||||
}
|
||||
|
|
|
|||
|
|
@ -468,10 +468,6 @@ public class BinaryDictDecoderEncoderTests extends AndroidTestCase {
|
|||
|
||||
runReadUnigramsAndBigramsTests(results, BinaryDictUtils.USE_BYTE_BUFFER,
|
||||
BinaryDictUtils.VERSION2_OPTIONS);
|
||||
runReadUnigramsAndBigramsTests(results, BinaryDictUtils.USE_BYTE_BUFFER,
|
||||
BinaryDictUtils.VERSION4_OPTIONS_WITHOUT_TIMESTAMP);
|
||||
runReadUnigramsAndBigramsTests(results, BinaryDictUtils.USE_BYTE_BUFFER,
|
||||
BinaryDictUtils.VERSION4_OPTIONS_WITH_TIMESTAMP);
|
||||
|
||||
for (final String result : results) {
|
||||
Log.d(TAG, result);
|
||||
|
|
@ -483,10 +479,6 @@ public class BinaryDictDecoderEncoderTests extends AndroidTestCase {
|
|||
|
||||
runReadUnigramsAndBigramsTests(results, BinaryDictUtils.USE_BYTE_ARRAY,
|
||||
BinaryDictUtils.VERSION2_OPTIONS);
|
||||
runReadUnigramsAndBigramsTests(results, BinaryDictUtils.USE_BYTE_ARRAY,
|
||||
BinaryDictUtils.VERSION4_OPTIONS_WITHOUT_TIMESTAMP);
|
||||
runReadUnigramsAndBigramsTests(results, BinaryDictUtils.USE_BYTE_ARRAY,
|
||||
BinaryDictUtils.VERSION4_OPTIONS_WITH_TIMESTAMP);
|
||||
|
||||
for (final String result : results) {
|
||||
Log.d(TAG, result);
|
||||
|
|
@ -597,17 +589,8 @@ public class BinaryDictDecoderEncoderTests extends AndroidTestCase {
|
|||
|
||||
runGetTerminalPositionTests(BinaryDictUtils.USE_BYTE_ARRAY,
|
||||
BinaryDictUtils.VERSION2_OPTIONS);
|
||||
runGetTerminalPositionTests(BinaryDictUtils.USE_BYTE_ARRAY,
|
||||
BinaryDictUtils.VERSION4_OPTIONS_WITHOUT_TIMESTAMP);
|
||||
runGetTerminalPositionTests(BinaryDictUtils.USE_BYTE_ARRAY,
|
||||
BinaryDictUtils.VERSION4_OPTIONS_WITH_TIMESTAMP);
|
||||
|
||||
runGetTerminalPositionTests(BinaryDictUtils.USE_BYTE_BUFFER,
|
||||
BinaryDictUtils.VERSION2_OPTIONS);
|
||||
runGetTerminalPositionTests(BinaryDictUtils.USE_BYTE_BUFFER,
|
||||
BinaryDictUtils.VERSION4_OPTIONS_WITHOUT_TIMESTAMP);
|
||||
runGetTerminalPositionTests(BinaryDictUtils.USE_BYTE_BUFFER,
|
||||
BinaryDictUtils.VERSION4_OPTIONS_WITH_TIMESTAMP);
|
||||
|
||||
for (final String result : results) {
|
||||
Log.d(TAG, result);
|
||||
|
|
|
|||
|
|
@ -1,195 +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 android.test.AndroidTestCase;
|
||||
import android.test.suitebuilder.annotation.LargeTest;
|
||||
import android.util.Log;
|
||||
|
||||
import java.io.File;
|
||||
import java.io.FileOutputStream;
|
||||
import java.io.IOException;
|
||||
import java.io.OutputStream;
|
||||
import java.util.ArrayList;
|
||||
import java.util.Random;
|
||||
|
||||
/**
|
||||
* Unit tests for SparseTable.
|
||||
*/
|
||||
@LargeTest
|
||||
public class SparseTableTests extends AndroidTestCase {
|
||||
private static final String TAG = SparseTableTests.class.getSimpleName();
|
||||
|
||||
private final Random mRandom;
|
||||
private final ArrayList<Integer> mRandomIndex;
|
||||
|
||||
private static final int DEFAULT_SIZE = 10000;
|
||||
private static final int BLOCK_SIZE = 8;
|
||||
|
||||
public SparseTableTests() {
|
||||
this(System.currentTimeMillis(), DEFAULT_SIZE);
|
||||
}
|
||||
|
||||
public SparseTableTests(final long seed, final int tableSize) {
|
||||
super();
|
||||
Log.d(TAG, "Seed for test is " + seed + ", size is " + tableSize);
|
||||
mRandom = new Random(seed);
|
||||
mRandomIndex = new ArrayList<Integer>(tableSize);
|
||||
for (int i = 0; i < tableSize; ++i) {
|
||||
mRandomIndex.add(SparseTable.NOT_EXIST);
|
||||
}
|
||||
}
|
||||
|
||||
public void testSet() {
|
||||
final SparseTable table = new SparseTable(16, BLOCK_SIZE, 1);
|
||||
table.set(0, 3, 6);
|
||||
table.set(0, 8, 16);
|
||||
for (int i = 0; i < 16; ++i) {
|
||||
if (i == 3 || i == 8) {
|
||||
assertEquals(i * 2, table.get(0, i));
|
||||
} else {
|
||||
assertEquals(SparseTable.NOT_EXIST, table.get(0, i));
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
private void generateRandomIndex(final int size, final int prop) {
|
||||
for (int i = 0; i < size; ++i) {
|
||||
if (mRandom.nextInt(100) < prop) {
|
||||
mRandomIndex.set(i, mRandom.nextInt());
|
||||
} else {
|
||||
mRandomIndex.set(i, SparseTable.NOT_EXIST);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
private void runTestRandomSet() {
|
||||
final SparseTable table = new SparseTable(DEFAULT_SIZE, BLOCK_SIZE, 1);
|
||||
int elementCount = 0;
|
||||
for (int i = 0; i < DEFAULT_SIZE; ++i) {
|
||||
if (mRandomIndex.get(i) != SparseTable.NOT_EXIST) {
|
||||
table.set(0, i, mRandomIndex.get(i));
|
||||
elementCount++;
|
||||
}
|
||||
}
|
||||
|
||||
Log.d(TAG, "table size = " + table.getLookupTableSize() + " + "
|
||||
+ table.getContentTableSize());
|
||||
Log.d(TAG, "the table has " + elementCount + " elements");
|
||||
for (int i = 0; i < DEFAULT_SIZE; ++i) {
|
||||
assertEquals(table.get(0, i), (int)mRandomIndex.get(i));
|
||||
}
|
||||
|
||||
// flush and reload
|
||||
OutputStream lookupOutStream = null;
|
||||
OutputStream contentOutStream = null;
|
||||
try {
|
||||
final File lookupIndexFile = File.createTempFile("testRandomSet", ".small");
|
||||
final File contentFile = File.createTempFile("testRandomSet", ".big");
|
||||
lookupOutStream = new FileOutputStream(lookupIndexFile);
|
||||
contentOutStream = new FileOutputStream(contentFile);
|
||||
table.write(lookupOutStream, new OutputStream[] { contentOutStream });
|
||||
lookupOutStream.flush();
|
||||
contentOutStream.flush();
|
||||
final SparseTable newTable = SparseTable.readFromFiles(lookupIndexFile,
|
||||
new File[] { contentFile }, BLOCK_SIZE);
|
||||
for (int i = 0; i < DEFAULT_SIZE; ++i) {
|
||||
assertEquals(table.get(0, i), newTable.get(0, i));
|
||||
}
|
||||
} catch (IOException e) {
|
||||
Log.d(TAG, "IOException while flushing and realoding", e);
|
||||
} finally {
|
||||
if (lookupOutStream != null) {
|
||||
try {
|
||||
lookupOutStream.close();
|
||||
} catch (IOException e) {
|
||||
Log.d(TAG, "IOException while closing the stream", e);
|
||||
}
|
||||
}
|
||||
if (contentOutStream != null) {
|
||||
try {
|
||||
contentOutStream.close();
|
||||
} catch (IOException e) {
|
||||
Log.d(TAG, "IOException while closing contentStream.", e);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
public void testRandomSet() {
|
||||
for (int i = 0; i <= 100; i += 10) {
|
||||
generateRandomIndex(DEFAULT_SIZE, i);
|
||||
runTestRandomSet();
|
||||
}
|
||||
}
|
||||
|
||||
public void testMultipleContents() {
|
||||
final int numOfContents = 5;
|
||||
generateRandomIndex(DEFAULT_SIZE, 20);
|
||||
final SparseTable table = new SparseTable(DEFAULT_SIZE, BLOCK_SIZE, numOfContents);
|
||||
for (int i = 0; i < mRandomIndex.size(); ++i) {
|
||||
if (mRandomIndex.get(i) != SparseTable.NOT_EXIST) {
|
||||
for (int j = 0; j < numOfContents; ++j) {
|
||||
table.set(j, i, mRandomIndex.get(i));
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
OutputStream lookupOutStream = null;
|
||||
OutputStream[] contentsOutStream = new OutputStream[numOfContents];
|
||||
try {
|
||||
final File lookupIndexFile = File.createTempFile("testMultipleContents", "small");
|
||||
lookupOutStream = new FileOutputStream(lookupIndexFile);
|
||||
final File[] contentFiles = new File[numOfContents];
|
||||
for (int i = 0; i < numOfContents; ++i) {
|
||||
contentFiles[i] = File.createTempFile("testMultipleContents", "big" + i);
|
||||
contentsOutStream[i] = new FileOutputStream(contentFiles[i]);
|
||||
}
|
||||
table.write(lookupOutStream, contentsOutStream);
|
||||
lookupOutStream.flush();
|
||||
for (int i = 0; i < numOfContents; ++i) {
|
||||
contentsOutStream[i].flush();
|
||||
}
|
||||
final SparseTable newTable = SparseTable.readFromFiles(lookupIndexFile, contentFiles,
|
||||
BLOCK_SIZE);
|
||||
for (int i = 0; i < numOfContents; ++i) {
|
||||
for (int j = 0; j < DEFAULT_SIZE; ++j) {
|
||||
assertEquals(table.get(i, j), newTable.get(i, j));
|
||||
}
|
||||
}
|
||||
} catch (IOException e) {
|
||||
Log.d(TAG, "IOException while flushing and reloading", e);
|
||||
} finally {
|
||||
if (lookupOutStream != null) {
|
||||
try {
|
||||
lookupOutStream.close();
|
||||
} catch (IOException e) {
|
||||
Log.d(TAG, "IOException while closing the stream", e);
|
||||
}
|
||||
}
|
||||
for (int i = 0; i < numOfContents; ++i) {
|
||||
if (contentsOutStream[i] != null) {
|
||||
try {
|
||||
contentsOutStream[i].close();
|
||||
} catch (IOException e) {
|
||||
Log.d(TAG, "IOException while closing the stream.", e);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
Loading…
Reference in a new issue