diff options
Diffstat (limited to 'java/src/com/android/inputmethod/latin/makedict')
4 files changed, 44 insertions, 9 deletions
diff --git a/java/src/com/android/inputmethod/latin/makedict/BinaryDictIOUtils.java b/java/src/com/android/inputmethod/latin/makedict/BinaryDictIOUtils.java index 5cb40f30c..2c5e93e5c 100644 --- a/java/src/com/android/inputmethod/latin/makedict/BinaryDictIOUtils.java +++ b/java/src/com/android/inputmethod/latin/makedict/BinaryDictIOUtils.java @@ -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. */ - /* package */ static void readUnigramsAndBigramsBinary(final Ver3DictDecoder dictDecoder, + /* package */ static void readUnigramsAndBigramsBinary(final DictDecoder dictDecoder, final Map<Integer, String> words, final Map<Integer, Integer> frequencies, final Map<Integer, ArrayList<PendingAttribute>> bigrams) throws IOException, UnsupportedFormatException { @@ -169,7 +169,7 @@ public final class BinaryDictIOUtils { * @throws UnsupportedFormatException if the format of the file is not recognized. */ @UsedForTesting - /* package */ static int getTerminalPosition(final Ver3DictDecoder dictDecoder, + /* package */ static int getTerminalPosition(final DictDecoder dictDecoder, final String word) throws IOException, UnsupportedFormatException { if (word == null) return FormatSpec.NOT_VALID_WORD; dictDecoder.setPosition(0); @@ -519,7 +519,7 @@ public final class BinaryDictIOUtils { final File file, final long offset, final long length) throws FileNotFoundException, IOException, UnsupportedFormatException { final byte[] buffer = new byte[HEADER_READING_BUFFER_SIZE]; - final Ver3DictDecoder dictDecoder = new Ver3DictDecoder(file, + final DictDecoder dictDecoder = FormatSpec.getDictDecoder(file, new DictDecoder.DictionaryBufferFactory() { @Override public DictBuffer getDictionaryBuffer(File file) diff --git a/java/src/com/android/inputmethod/latin/makedict/DictDecoder.java b/java/src/com/android/inputmethod/latin/makedict/DictDecoder.java index 5e398bd41..40e852423 100644 --- a/java/src/com/android/inputmethod/latin/makedict/DictDecoder.java +++ b/java/src/com/android/inputmethod/latin/makedict/DictDecoder.java @@ -118,6 +118,14 @@ public interface DictDecoder { public boolean readForwardLinkAndAdvancePosition(); public boolean hasNextPtNodeArray(); + /** + * Opens the dictionary file and makes DictBuffer. + */ + @UsedForTesting + public void openDictBuffer() throws FileNotFoundException, IOException; + @UsedForTesting + public boolean isOpenedDictBuffer(); + // Flags for DictionaryBufferFactory. public static final int USE_READONLY_BYTEBUFFER = 0x01000000; public static final int USE_BYTEARRAY = 0x02000000; diff --git a/java/src/com/android/inputmethod/latin/makedict/FormatSpec.java b/java/src/com/android/inputmethod/latin/makedict/FormatSpec.java index bf35f6a8a..44ae33de1 100644 --- a/java/src/com/android/inputmethod/latin/makedict/FormatSpec.java +++ b/java/src/com/android/inputmethod/latin/makedict/FormatSpec.java @@ -18,8 +18,11 @@ package com.android.inputmethod.latin.makedict; import com.android.inputmethod.annotations.UsedForTesting; import com.android.inputmethod.latin.Constants; +import com.android.inputmethod.latin.makedict.DictDecoder.DictionaryBufferFactory; import com.android.inputmethod.latin.makedict.FusionDictionary.DictionaryOptions; +import java.io.File; + /** * Dictionary File Format Specification. */ @@ -341,6 +344,28 @@ public final class FormatSpec { } } + /** + * Returns new dictionary decoder. + * + * @param dictFile the dictionary file. + * @param bufferType the flag indicating buffer type which is used by the dictionary decoder. + * @return new dictionary decoder if the dictionary file exists, otherwise null. + */ + public static DictDecoder getDictDecoder(final File dictFile, final int bufferType) { + if (!dictFile.isFile()) return null; + return new Ver3DictDecoder(dictFile, bufferType); + } + + public static DictDecoder getDictDecoder(final File dictFile, + final DictionaryBufferFactory factory) { + if (!dictFile.isFile()) return null; + return new Ver3DictDecoder(dictFile, factory); + } + + public static DictDecoder getDictDecoder(final File dictFile) { + return getDictDecoder(dictFile, DictDecoder.USE_READONLY_BYTEBUFFER); + } + private FormatSpec() { // This utility class is not publicly instantiable. } diff --git a/java/src/com/android/inputmethod/latin/makedict/Ver3DictDecoder.java b/java/src/com/android/inputmethod/latin/makedict/Ver3DictDecoder.java index 6dff9b6d2..1a90a4b98 100644 --- a/java/src/com/android/inputmethod/latin/makedict/Ver3DictDecoder.java +++ b/java/src/com/android/inputmethod/latin/makedict/Ver3DictDecoder.java @@ -173,11 +173,7 @@ public class Ver3DictDecoder implements DictDecoder { private final DictionaryBufferFactory mBufferFactory; private DictBuffer mDictBuffer; - public Ver3DictDecoder(final File file) { - this(file, USE_READONLY_BYTEBUFFER); - } - - public Ver3DictDecoder(final File file, final int factoryFlag) { + /* package */ Ver3DictDecoder(final File file, final int factoryFlag) { mDictionaryBinaryFile = file; mDictBuffer = null; @@ -192,15 +188,21 @@ public class Ver3DictDecoder implements DictDecoder { } } - public Ver3DictDecoder(final File file, final DictionaryBufferFactory factory) { + /* package */ Ver3DictDecoder(final File file, final DictionaryBufferFactory factory) { mDictionaryBinaryFile = file; mBufferFactory = factory; } + @Override public void openDictBuffer() throws FileNotFoundException, IOException { mDictBuffer = mBufferFactory.getDictionaryBuffer(mDictionaryBinaryFile); } + @Override + public boolean isOpenedDictBuffer() { + return mDictBuffer != null; + } + /* package */ DictBuffer getDictBuffer() { return mDictBuffer; } |