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[Refactor] Add DictDecoder.readUnigramsAndBigramsBinary. 

Change-Id: I259db91d837c67cbcb3b6dc504b21dca23a6a5be
main
Yuichiro Hanada 2013-08-23 23:30:16 +09:00
parent 918336b7e7
commit 752a33640c
5 changed files with 66 additions and 35 deletions
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2
java/src/com/android/inputmethod/latin/makedict/BinaryDictIOUtils.java
View File

@ -148,7 +148,7 @@ public final class BinaryDictIOUtils {
* @throws IOException if the file can't be read.
* @throws UnsupportedFormatException if the format of the file is not recognized.
*/
public static void readUnigramsAndBigramsBinary(final Ver3DictDecoder dictDecoder,
/* package */ static void readUnigramsAndBigramsBinary(final Ver3DictDecoder dictDecoder,
final Map<Integer, String> words, final Map<Integer, Integer> frequencies,
final Map<Integer, ArrayList<PendingAttribute>> bigrams) throws IOException,
UnsupportedFormatException {

17
java/src/com/android/inputmethod/latin/makedict/DictDecoder.java
View File

@ -29,6 +29,8 @@ import java.io.IOException;
import java.io.RandomAccessFile;
import java.nio.ByteBuffer;
import java.nio.channels.FileChannel;
import java.util.ArrayList;
import java.util.TreeMap;
/**
* An interface of binary dictionary decoder.
@ -71,6 +73,21 @@ public interface DictDecoder {
public int getTerminalPosition(final String word)
throws IOException, UnsupportedFormatException;
/**
* Reads unigrams and bigrams from the binary file.
* Doesn't store a full memory representation of the dictionary.
*
* @param words the map to store the address as a key and the word as a value.
* @param frequencies the map to store the address as a key and the frequency as a value.
* @param bigrams the map to store the address as a key and the list of address as a value.
* @throws IOException if the file can't be read.
* @throws UnsupportedFormatException if the format of the file is not recognized.
*/
public void readUnigramsAndBigramsBinary(final TreeMap<Integer, String> words,
final TreeMap<Integer, Integer> frequencies,
final TreeMap<Integer, ArrayList<PendingAttribute>> bigrams)
throws IOException, UnsupportedFormatException;
// Flags for DictionaryBufferFactory.
public static final int USE_READONLY_BYTEBUFFER = 0x01000000;
public static final int USE_BYTEARRAY = 0x02000000;

13
java/src/com/android/inputmethod/latin/makedict/Ver3DictDecoder.java
View File

@ -31,6 +31,7 @@ import java.io.IOException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
import java.util.TreeMap;
/**
* An implementation of DictDecoder for version 3 binary dictionary.
@ -317,4 +318,16 @@ public class Ver3DictDecoder implements DictDecoder {
}
return BinaryDictIOUtils.getTerminalPosition(this, word);
}
@Override
public void readUnigramsAndBigramsBinary(final TreeMap<Integer, String> words,
final TreeMap<Integer, Integer> frequencies,
final TreeMap<Integer, ArrayList<PendingAttribute>> bigrams)
throws IOException, UnsupportedFormatException {
if (mDictBuffer == null) {
openDictBuffer();
}
BinaryDictIOUtils.readUnigramsAndBigramsBinary(this, words, frequencies, bigrams);
}
}

21
java/src/com/android/inputmethod/latin/utils/UserHistoryDictIOUtils.java
View File

@ -32,7 +32,8 @@ import com.android.inputmethod.latin.personalization.UserHistoryDictionaryBigram
import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Map;
import java.util.Map.Entry;
import java.util.TreeMap;
/**
* Reads and writes Binary files for a UserHistoryDictionary.
@ -119,12 +120,11 @@ public final class UserHistoryDictIOUtils {
*/
public static void readDictionaryBinary(final Ver3DictDecoder dictDecoder,
final OnAddWordListener dict) {
final Map<Integer, String> unigrams = CollectionUtils.newTreeMap();
final Map<Integer, Integer> frequencies = CollectionUtils.newTreeMap();
final Map<Integer, ArrayList<PendingAttribute>> bigrams = CollectionUtils.newTreeMap();
final TreeMap<Integer, String> unigrams = CollectionUtils.newTreeMap();
final TreeMap<Integer, Integer> frequencies = CollectionUtils.newTreeMap();
final TreeMap<Integer, ArrayList<PendingAttribute>> bigrams = CollectionUtils.newTreeMap();
try {
BinaryDictIOUtils.readUnigramsAndBigramsBinary(dictDecoder, unigrams, frequencies,
bigrams);
dictDecoder.readUnigramsAndBigramsBinary(unigrams, frequencies, bigrams);
} catch (IOException e) {
Log.e(TAG, "IO exception while reading file", e);
} catch (UnsupportedFormatException e) {
@ -139,10 +139,11 @@ public final class UserHistoryDictIOUtils {
* Adds all unigrams and bigrams in maps to OnAddWordListener.
*/
@UsedForTesting
static void addWordsFromWordMap(final Map<Integer, String> unigrams,
final Map<Integer, Integer> frequencies,
final Map<Integer, ArrayList<PendingAttribute>> bigrams, final OnAddWordListener to) {
for (Map.Entry<Integer, String> entry : unigrams.entrySet()) {
static void addWordsFromWordMap(final TreeMap<Integer, String> unigrams,
final TreeMap<Integer, Integer> frequencies,
final TreeMap<Integer, ArrayList<PendingAttribute>> bigrams,
final OnAddWordListener to) {
for (Entry<Integer, String> entry : unigrams.entrySet()) {
final String word1 = entry.getValue();
final int unigramFrequency = frequencies.get(entry.getKey());
to.setUnigram(word1, null, unigramFrequency);

48
tests/src/com/android/inputmethod/latin/makedict/BinaryDictDecoderEncoderTests.java
View File

@ -39,10 +39,10 @@ import java.util.Arrays;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Random;
import java.util.Set;
import java.util.TreeMap;
/**
* Unit tests for BinaryDictDecoderUtils and BinaryDictEncoderUtils.
@ -61,13 +61,13 @@ public class BinaryDictDecoderEncoderTests extends AndroidTestCase {
private static final int USE_BYTE_ARRAY = 1;
private static final int USE_BYTE_BUFFER = 2;
private static final List<String> sWords = CollectionUtils.newArrayList();
private static final ArrayList<String> sWords = CollectionUtils.newArrayList();
private static final SparseArray<List<Integer>> sEmptyBigrams =
CollectionUtils.newSparseArray();
private static final SparseArray<List<Integer>> sStarBigrams = CollectionUtils.newSparseArray();
private static final SparseArray<List<Integer>> sChainBigrams =
CollectionUtils.newSparseArray();
private static final Map<String, List<String>> sShortcuts = CollectionUtils.newHashMap();
private static final HashMap<String, List<String>> sShortcuts = CollectionUtils.newHashMap();
private static final FormatSpec.FormatOptions VERSION2 = new FormatSpec.FormatOptions(2);
private static final FormatSpec.FormatOptions VERSION3_WITHOUT_DYNAMIC_UPDATE =
@ -177,7 +177,7 @@ public class BinaryDictDecoderEncoderTests extends AndroidTestCase {
* Adds unigrams to the dictionary.
*/
private void addUnigrams(final int number, final FusionDictionary dict,
final List<String> words, final Map<String, List<String>> shortcutMap) {
final List<String> words, final HashMap<String, List<String>> shortcutMap) {
for (int i = 0; i < number; ++i) {
final String word = words.get(i);
final ArrayList<WeightedString> shortcuts = CollectionUtils.newArrayList();
@ -234,7 +234,8 @@ public class BinaryDictDecoderEncoderTests extends AndroidTestCase {
}
private void checkDictionary(final FusionDictionary dict, final List<String> words,
final SparseArray<List<Integer>> bigrams, final Map<String, List<String>> shortcutMap) {
final SparseArray<List<Integer>> bigrams,
final HashMap<String, List<String>> shortcutMap) {
assertNotNull(dict);
// check unigram
@ -255,7 +256,7 @@ public class BinaryDictDecoderEncoderTests extends AndroidTestCase {
// check shortcut
if (shortcutMap != null) {
for (final Map.Entry<String, List<String>> entry : shortcutMap.entrySet()) {
for (final Entry<String, List<String>> entry : shortcutMap.entrySet()) {
assertTrue(words.contains(entry.getKey()));
final PtNode ptNode = FusionDictionary.findWordInTree(dict.mRootNodeArray,
entry.getKey());
@ -278,8 +279,8 @@ public class BinaryDictDecoderEncoderTests extends AndroidTestCase {
// Tests for readDictionaryBinary and writeDictionaryBinary
private long timeReadingAndCheckDict(final File file, final List<String> words,
final SparseArray<List<Integer>> bigrams, final Map<String, List<String>> shortcutMap,
final int bufferType) {
final SparseArray<List<Integer>> bigrams,
final HashMap<String, List<String>> shortcutMap, final int bufferType) {
long now, diff = -1;
FusionDictionary dict = null;
@ -302,7 +303,7 @@ public class BinaryDictDecoderEncoderTests extends AndroidTestCase {
// Tests for readDictionaryBinary and writeDictionaryBinary
private String runReadAndWrite(final List<String> words,
final SparseArray<List<Integer>> bigrams, final Map<String, List<String>> shortcuts,
final SparseArray<List<Integer>> bigrams, final HashMap<String, List<String>> shortcuts,
final int bufferType, final FormatSpec.FormatOptions formatOptions,
final String message) {
File file = null;
@ -387,9 +388,9 @@ public class BinaryDictDecoderEncoderTests extends AndroidTestCase {
private void checkWordMap(final List<String> expectedWords,
final SparseArray<List<Integer>> expectedBigrams,
final Map<Integer, String> resultWords,
final Map<Integer, Integer> resultFrequencies,
final Map<Integer, ArrayList<PendingAttribute>> resultBigrams) {
final TreeMap<Integer, String> resultWords,
final TreeMap<Integer, Integer> resultFrequencies,
final TreeMap<Integer, ArrayList<PendingAttribute>> resultBigrams) {
// check unigrams
final Set<String> actualWordsSet = new HashSet<String>(resultWords.values());
final Set<String> expectedWordsSet = new HashSet<String>(expectedWords);
@ -400,7 +401,7 @@ public class BinaryDictDecoderEncoderTests extends AndroidTestCase {
}
// check bigrams
final Map<String, List<String>> expBigrams = new HashMap<String, List<String>>();
final HashMap<String, List<String>> expBigrams = new HashMap<String, List<String>>();
for (int i = 0; i < expectedBigrams.size(); ++i) {
final String word1 = expectedWords.get(expectedBigrams.keyAt(i));
for (int w2 : expectedBigrams.valueAt(i)) {
@ -411,7 +412,7 @@ public class BinaryDictDecoderEncoderTests extends AndroidTestCase {
}
}
final Map<String, List<String>> actBigrams = new HashMap<String, List<String>>();
final HashMap<String, List<String>> actBigrams = new HashMap<String, List<String>>();
for (Entry<Integer, ArrayList<PendingAttribute>> entry : resultBigrams.entrySet()) {
final String word1 = resultWords.get(entry.getKey());
final int unigramFreq = resultFrequencies.get(entry.getKey());
@ -435,10 +436,10 @@ public class BinaryDictDecoderEncoderTests extends AndroidTestCase {
final SparseArray<List<Integer>> bigrams, final int bufferType) {
FileInputStream inStream = null;
final Map<Integer, String> resultWords = CollectionUtils.newTreeMap();
final Map<Integer, ArrayList<PendingAttribute>> resultBigrams =
final TreeMap<Integer, String> resultWords = CollectionUtils.newTreeMap();
final TreeMap<Integer, ArrayList<PendingAttribute>> resultBigrams =
CollectionUtils.newTreeMap();
final Map<Integer, Integer> resultFreqs = CollectionUtils.newTreeMap();
final TreeMap<Integer, Integer> resultFreqs = CollectionUtils.newTreeMap();
long now = -1, diff = -1;
try {
@ -446,8 +447,7 @@ public class BinaryDictDecoderEncoderTests extends AndroidTestCase {
dictDecoder.openDictBuffer();
assertNotNull("Can't get buffer.", dictDecoder.getDictBuffer());
now = System.currentTimeMillis();
BinaryDictIOUtils.readUnigramsAndBigramsBinary(dictDecoder, resultWords, resultFreqs,
resultBigrams);
dictDecoder.readUnigramsAndBigramsBinary(resultWords, resultFreqs, resultBigrams);
diff = System.currentTimeMillis() - now;
} catch (IOException e) {
Log.e(TAG, "IOException", e);
@ -467,7 +467,7 @@ public class BinaryDictDecoderEncoderTests extends AndroidTestCase {
return diff;
}
private String runReadUnigramsAndBigramsBinary(final List<String> words,
private String runReadUnigramsAndBigramsBinary(final ArrayList<String> words,
final SparseArray<List<Integer>> bigrams, final int bufferType,
final FormatSpec.FormatOptions formatOptions, final String message) {
File file = null;
@ -496,8 +496,8 @@ public class BinaryDictDecoderEncoderTests extends AndroidTestCase {
+ " : " + message + " : " + outputOptions(bufferType, formatOptions);
}
private void runReadUnigramsAndBigramsTests(final List<String> results, final int bufferType,
final FormatSpec.FormatOptions formatOptions) {
private void runReadUnigramsAndBigramsTests(final ArrayList<String> results,
final int bufferType, final FormatSpec.FormatOptions formatOptions) {
results.add(runReadUnigramsAndBigramsBinary(sWords, sEmptyBigrams, bufferType,
formatOptions, "unigram"));
results.add(runReadUnigramsAndBigramsBinary(sWords, sChainBigrams, bufferType,
@ -507,7 +507,7 @@ public class BinaryDictDecoderEncoderTests extends AndroidTestCase {
}
public void testReadUnigramsAndBigramsBinaryWithByteBuffer() {
final List<String> results = CollectionUtils.newArrayList();
final ArrayList<String> results = CollectionUtils.newArrayList();
runReadUnigramsAndBigramsTests(results, USE_BYTE_BUFFER, VERSION2);
runReadUnigramsAndBigramsTests(results, USE_BYTE_BUFFER, VERSION3_WITHOUT_DYNAMIC_UPDATE);
@ -519,7 +519,7 @@ public class BinaryDictDecoderEncoderTests extends AndroidTestCase {
}
public void testReadUnigramsAndBigramsBinaryWithByteArray() {
final List<String> results = CollectionUtils.newArrayList();
final ArrayList<String> results = CollectionUtils.newArrayList();
runReadUnigramsAndBigramsTests(results, USE_BYTE_ARRAY, VERSION2);
runReadUnigramsAndBigramsTests(results, USE_BYTE_ARRAY, VERSION3_WITHOUT_DYNAMIC_UPDATE);