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Remove populateOptions. 

Change-Id: I1a1830aaa8ea586b68fc34ff3a27ae52b810e8af
main
Yuichiro Hanada 2013-08-20 13:15:27 +09:00
parent 22f01a42fc
commit 66004ce2de
8 changed files with 72 additions and 136 deletions
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33
java/src/com/android/inputmethod/latin/BinaryDictionaryGetter.java
View File

@ -21,8 +21,12 @@ import android.content.SharedPreferences;
import android.content.res.AssetFileDescriptor;
import android.util.Log;
import com.android.inputmethod.latin.makedict.BinaryDictDecoder;
import com.android.inputmethod.latin.makedict.BinaryDictDecoderUtils;
import com.android.inputmethod.latin.makedict.BinaryDictDecoderUtils.DictBuffer;
import com.android.inputmethod.latin.makedict.FormatSpec;
import com.android.inputmethod.latin.makedict.FormatSpec.FileHeader;
import com.android.inputmethod.latin.makedict.UnsupportedFormatException;
import com.android.inputmethod.latin.utils.CollectionUtils;
import com.android.inputmethod.latin.utils.DictionaryInfoUtils;
import com.android.inputmethod.latin.utils.LocaleUtils;
@ -227,23 +231,14 @@ final public class BinaryDictionaryGetter {
// those do not include whitelist entries, the new code with an old version of the dictionary
// would lose whitelist functionality.
private static boolean hackCanUseDictionaryFile(final Locale locale, final File f) {
FileInputStream inStream = null;
try {
// Read the version of the file
inStream = new FileInputStream(f);
final BinaryDictDecoderUtils.ByteBufferDictBuffer dictBuffer =
new BinaryDictDecoderUtils.ByteBufferDictBuffer(inStream.getChannel().map(
FileChannel.MapMode.READ_ONLY, 0, f.length()));
final int magic = dictBuffer.readInt();
if (magic != FormatSpec.MAGIC_NUMBER) {
return false;
}
final int formatVersion = dictBuffer.readInt();
final int headerSize = dictBuffer.readInt();
final HashMap<String, String> options = CollectionUtils.newHashMap();
BinaryDictDecoderUtils.populateOptions(dictBuffer, headerSize, options);
final BinaryDictDecoder dictDecoder = new BinaryDictDecoder(f);
dictDecoder.openDictBuffer(
new BinaryDictDecoder.DictionaryBufferFromReadOnlyByteBufferFactory());
final FileHeader header = dictDecoder.readHeader();
final String version = options.get(VERSION_KEY);
final String version = header.mDictionaryOptions.mAttributes.get(VERSION_KEY);
if (null == version) {
// No version in the options : the format is unexpected
return false;
@ -259,14 +254,8 @@ final public class BinaryDictionaryGetter {
return false;
} catch (BufferUnderflowException e) {
return false;
} finally {
if (inStream != null) {
try {
inStream.close();
} catch (IOException e) {
// do nothing
}
}
} catch (UnsupportedFormatException e) {
return false;
}
}

78
java/src/com/android/inputmethod/latin/makedict/BinaryDictDecoder.java
View File

@ -19,7 +19,8 @@ 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.decoder.HeaderReader;
import com.android.inputmethod.latin.makedict.FormatSpec.FileHeader;
import com.android.inputmethod.latin.makedict.FormatSpec.FormatOptions;
import com.android.inputmethod.latin.utils.ByteArrayDictBuffer;
import com.android.inputmethod.latin.utils.JniUtils;
@ -32,8 +33,9 @@ import java.nio.ByteBuffer;
import java.nio.channels.FileChannel;
import java.util.HashMap;
// TODO: Rename this class to "Ver3DictDecoder" or something, and make an interface "DictDecoder".
@UsedForTesting
public class BinaryDictDecoder implements HeaderReader {
public class BinaryDictDecoder {
static {
JniUtils.loadNativeLibrary();
@ -132,6 +134,35 @@ public class BinaryDictDecoder implements HeaderReader {
}
}
private final static class HeaderReader {
protected static int readVersion(final DictBuffer dictBuffer)
throws IOException, UnsupportedFormatException {
return BinaryDictDecoderUtils.checkFormatVersion(dictBuffer);
}
protected static int readOptionFlags(final DictBuffer dictBuffer) {
return dictBuffer.readUnsignedShort();
}
protected static int readHeaderSize(final DictBuffer dictBuffer) {
return dictBuffer.readInt();
}
protected static HashMap<String, String> readAttributes(final DictBuffer dictBuffer,
final int headerSize) {
final HashMap<String, String> attributes = new HashMap<String, String>();
while (dictBuffer.position() < headerSize) {
// We can avoid an infinite loop here since dictBuffer.position() is always
// increased by calling CharEncoding.readString.
final String key = CharEncoding.readString(dictBuffer);
final String value = CharEncoding.readString(dictBuffer);
attributes.put(key, value);
}
dictBuffer.position(headerSize);
return attributes;
}
}
private final File mDictionaryBinaryFile;
private DictBuffer mDictBuffer;
@ -157,33 +188,26 @@ public class BinaryDictDecoder implements HeaderReader {
return getDictBuffer();
}
// The implementation of HeaderReader
@Override
public int readVersion() throws IOException, UnsupportedFormatException {
return BinaryDictDecoderUtils.checkFormatVersion(mDictBuffer);
// TODO : Define public functions of decoders
public FileHeader readHeader() throws IOException, UnsupportedFormatException {
final int version = HeaderReader.readVersion(mDictBuffer);
final int optionsFlags = HeaderReader.readOptionFlags(mDictBuffer);
final int headerSize = HeaderReader.readHeaderSize(mDictBuffer);
if (headerSize < 0) {
throw new UnsupportedFormatException("header size can't be negative.");
}
@Override
public int readOptionFlags() {
return mDictBuffer.readUnsignedShort();
}
final HashMap<String, String> attributes = HeaderReader.readAttributes(mDictBuffer,
headerSize);
@Override
public int readHeaderSize() {
return mDictBuffer.readInt();
}
@Override
public HashMap<String, String> readAttributes(final int headerSize) {
final HashMap<String, String> attributes = new HashMap<String, String>();
while (mDictBuffer.position() < headerSize) {
// We can avoid infinite loop here since mFusionDictonary.position() is always increased
// by calling CharEncoding.readString.
final String key = CharEncoding.readString(mDictBuffer);
final String value = CharEncoding.readString(mDictBuffer);
attributes.put(key, value);
}
mDictBuffer.position(headerSize);
return attributes;
final FileHeader header = new FileHeader(headerSize,
new FusionDictionary.DictionaryOptions(attributes,
0 != (optionsFlags & FormatSpec.GERMAN_UMLAUT_PROCESSING_FLAG),
0 != (optionsFlags & FormatSpec.FRENCH_LIGATURE_PROCESSING_FLAG)),
new FormatOptions(version,
0 != (optionsFlags & FormatSpec.SUPPORTS_DYNAMIC_UPDATE)));
return header;
}
}

47
java/src/com/android/inputmethod/latin/makedict/BinaryDictDecoderUtils.java
View File

@ -22,7 +22,6 @@ import com.android.inputmethod.latin.makedict.FormatSpec.FormatOptions;
import com.android.inputmethod.latin.makedict.FusionDictionary.CharGroup;
import com.android.inputmethod.latin.makedict.FusionDictionary.PtNodeArray;
import com.android.inputmethod.latin.makedict.FusionDictionary.WeightedString;
import com.android.inputmethod.latin.makedict.decoder.HeaderReader;
import java.io.ByteArrayOutputStream;
import java.io.File;
@ -33,7 +32,6 @@ import java.nio.ByteBuffer;
import java.nio.channels.FileChannel;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
import java.util.Map;
import java.util.TreeMap;
@ -639,49 +637,6 @@ public final class BinaryDictDecoderUtils {
return version;
}
/**
* Reads a header from a buffer.
* @param headerReader the header reader
* @throws IOException
* @throws UnsupportedFormatException
*/
public static FileHeader readHeader(final HeaderReader headerReader)
throws IOException, UnsupportedFormatException {
final int version = headerReader.readVersion();
final int optionsFlags = headerReader.readOptionFlags();
final int headerSize = headerReader.readHeaderSize();
if (headerSize < 0) {
throw new UnsupportedFormatException("header size can't be negative.");
}
final HashMap<String, String> attributes = headerReader.readAttributes(headerSize);
final FileHeader header = new FileHeader(headerSize,
new FusionDictionary.DictionaryOptions(attributes,
0 != (optionsFlags & FormatSpec.GERMAN_UMLAUT_PROCESSING_FLAG),
0 != (optionsFlags & FormatSpec.FRENCH_LIGATURE_PROCESSING_FLAG)),
new FormatOptions(version,
0 != (optionsFlags & FormatSpec.SUPPORTS_DYNAMIC_UPDATE)));
return header;
}
/**
* Reads options from a buffer and populate a map with their contents.
*
* The buffer is read at the current position, so the caller must take care the pointer
* is in the right place before calling this.
*/
public static void populateOptions(final DictBuffer dictBuffer,
final int headerSize, final HashMap<String, String> options) {
while (dictBuffer.position() < headerSize) {
final String key = CharEncoding.readString(dictBuffer);
final String value = CharEncoding.readString(dictBuffer);
options.put(key, value);
}
}
/**
* Reads a buffer and returns the memory representation of the dictionary.
*
@ -706,7 +661,7 @@ public final class BinaryDictDecoderUtils {
}
// Read header
final FileHeader fileHeader = readHeader(dictDecoder);
final FileHeader fileHeader = dictDecoder.readHeader();
Map<Integer, PtNodeArray> reverseNodeArrayMapping = new TreeMap<Integer, PtNodeArray>();
Map<Integer, CharGroup> reverseGroupMapping = new TreeMap<Integer, CharGroup>();

8
java/src/com/android/inputmethod/latin/makedict/BinaryDictIOUtils.java
View File

@ -153,7 +153,7 @@ public final class BinaryDictIOUtils {
final Map<Integer, ArrayList<PendingAttribute>> bigrams) throws IOException,
UnsupportedFormatException {
// Read header
final FileHeader header = BinaryDictDecoderUtils.readHeader(dictDecoder);
final FileHeader header = dictDecoder.readHeader();
readUnigramsAndBigramsBinaryInner(dictDecoder.getDictBuffer(), header.mHeaderSize, words,
frequencies, bigrams, header.mFormatOptions);
}
@ -175,7 +175,7 @@ public final class BinaryDictIOUtils {
if (word == null) return FormatSpec.NOT_VALID_WORD;
if (dictBuffer.position() != 0) dictBuffer.position(0);
final FileHeader header = BinaryDictDecoderUtils.readHeader(dictDecoder);
final FileHeader header = dictDecoder.readHeader();
int wordPos = 0;
final int wordLen = word.codePointCount(0, word.length());
for (int depth = 0; depth < Constants.DICTIONARY_MAX_WORD_LENGTH; ++depth) {
@ -523,7 +523,7 @@ public final class BinaryDictIOUtils {
final DictBuffer dictBuffer = dictDecoder.getDictBuffer();
if (position != FormatSpec.NOT_VALID_WORD) {
dictBuffer.position(0);
final FileHeader header = BinaryDictDecoderUtils.readHeader(dictDecoder);
final FileHeader header = dictDecoder.readHeader();
dictBuffer.position(position);
return BinaryDictDecoderUtils.readCharGroup(dictBuffer, position,
header.mFormatOptions);
@ -559,7 +559,7 @@ public final class BinaryDictIOUtils {
}
}
});
return BinaryDictDecoderUtils.readHeader(dictDecoder);
return dictDecoder.readHeader();
}
public static FileHeader getDictionaryFileHeaderOrNull(final File file, final long offset,

4
java/src/com/android/inputmethod/latin/makedict/DynamicBinaryDictIOUtils.java
View File

@ -59,7 +59,7 @@ public final class DynamicBinaryDictIOUtils {
throws IOException, UnsupportedFormatException {
final DictBuffer dictBuffer = dictDecoder.getDictBuffer();
dictBuffer.position(0);
final FileHeader header = BinaryDictDecoderUtils.readHeader(dictDecoder);
final FileHeader header = dictDecoder.readHeader();
final int wordPosition = BinaryDictIOUtils.getTerminalPosition(dictDecoder, word);
if (wordPosition == FormatSpec.NOT_VALID_WORD) return;
@ -278,7 +278,7 @@ public final class DynamicBinaryDictIOUtils {
// find the insert position of the word.
if (dictBuffer.position() != 0) dictBuffer.position(0);
final FileHeader fileHeader = BinaryDictDecoderUtils.readHeader(dictDecoder);
final FileHeader fileHeader = dictDecoder.readHeader();
int wordPos = 0, address = dictBuffer.position(), nodeOriginAddress = dictBuffer.position();
final int[] codePoints = FusionDictionary.getCodePoints(word);

32
java/src/com/android/inputmethod/latin/makedict/decoder/HeaderReader.java
View File

@ -1,32 +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.decoder;
import com.android.inputmethod.latin.makedict.UnsupportedFormatException;
import java.io.IOException;
import java.util.HashMap;
/**
* An interface to read a binary dictionary file header.
*/
public interface HeaderReader {
public int readVersion() throws IOException, UnsupportedFormatException;
public int readOptionFlags();
public int readHeaderSize();
public HashMap<String, String> readAttributes(final int headerSize);
}

2
tests/src/com/android/inputmethod/latin/makedict/BinaryDictDecoderEncoderTests.java
View File

@ -505,7 +505,7 @@ public class BinaryDictDecoderEncoderTests extends AndroidTestCase {
FileHeader fileHeader = null;
try {
fileHeader = BinaryDictDecoderUtils.readHeader(dictDecoder);
fileHeader = dictDecoder.readHeader();
} catch (IOException e) {
return null;
} catch (UnsupportedFormatException e) {

4
tests/src/com/android/inputmethod/latin/makedict/BinaryDictIOUtilsTests.java
View File

@ -130,7 +130,7 @@ public class BinaryDictIOUtilsTests extends AndroidTestCase {
private static void printBinaryFile(final BinaryDictDecoder dictDecoder)
throws IOException, UnsupportedFormatException {
final FileHeader fileHeader = BinaryDictDecoderUtils.readHeader(dictDecoder);
final FileHeader fileHeader = dictDecoder.readHeader();
final DictBuffer buffer = dictDecoder.getDictBuffer();
while (buffer.position() < buffer.limit()) {
printNode(buffer, fileHeader.mFormatOptions);
@ -225,7 +225,7 @@ public class BinaryDictIOUtilsTests extends AndroidTestCase {
try {
final DictBuffer dictBuffer = dictDecoder.openAndGetDictBuffer(
new BinaryDictDecoder.DictionaryBufferFromReadOnlyByteBufferFactory());
final FileHeader fileHeader = BinaryDictDecoderUtils.readHeader(dictDecoder);
final FileHeader fileHeader = dictDecoder.readHeader();
assertEquals(word,
BinaryDictDecoderUtils.getWordAtAddress(dictDecoder.getDictBuffer(),
fileHeader.mHeaderSize, position - fileHeader.mHeaderSize,