Add DictDecoder.readDictionaryBinary. (e9a10ff0) · Commits · e / os / android_packages_inputmethods_LatinIME

java/src/com/android/inputmethod/latin/BinaryDictionaryGetter.java

+0 −2

Original line number	Diff line number	Diff line
		@@ -229,8 +229,6 @@ final public class BinaryDictionaryGetter {
		try {
		// Read the version of the file
		final Ver3DictDecoder dictDecoder = new Ver3DictDecoder(f);
		dictDecoder.openDictBuffer(
		new Ver3DictDecoder.DictionaryBufferFromReadOnlyByteBufferFactory());
		final FileHeader header = dictDecoder.readHeader();

		final String version = header.mDictionaryOptions.mAttributes.get(VERSION_KEY);

java/src/com/android/inputmethod/latin/makedict/BinaryDictDecoderUtils.java

+1 −9

Original line number	Diff line number	Diff line
		@@ -559,17 +559,9 @@ public final class BinaryDictDecoderUtils {
		* @return the created (or merged) dictionary.
		*/
		@UsedForTesting
		public static FusionDictionary readDictionaryBinary(final Ver3DictDecoder dictDecoder,
		/* package */ static FusionDictionary readDictionaryBinary(final Ver3DictDecoder dictDecoder,
		final FusionDictionary dict) throws FileNotFoundException, IOException,
		UnsupportedFormatException {

		// if the buffer has not been opened, open the buffer with bytebuffer.
		if (dictDecoder.getDictBuffer() == null) dictDecoder.openDictBuffer(
		new Ver3DictDecoder.DictionaryBufferFromReadOnlyByteBufferFactory());
		if (dictDecoder.getDictBuffer() == null) {
		MakedictLog.e("Cannot open the buffer");
		}

		// Read header
		final FileHeader fileHeader = dictDecoder.readHeader();

java/src/com/android/inputmethod/latin/makedict/BinaryDictIOUtils.java

+14 −13

Original line number	Diff line number	Diff line
		@@ -521,8 +521,8 @@ 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);
		dictDecoder.openDictBuffer(new DictDecoder.DictionaryBufferFactory() {
		final Ver3DictDecoder dictDecoder = new Ver3DictDecoder(file,
		new DictDecoder.DictionaryBufferFactory() {
		@Override
		public DictBuffer getDictionaryBuffer(File file)
		throws FileNotFoundException, IOException {
		@@ -534,7 +534,8 @@ public final class BinaryDictIOUtils {
		inStream.close();
		}
		}
		});
		}
		);
		return dictDecoder.readHeader();
		}

java/src/com/android/inputmethod/latin/makedict/DictDecoder.java

+20 −0

Original line number	Diff line number	Diff line
		@@ -44,6 +44,26 @@ public interface DictDecoder {
		*/
		public CharGroupInfo readPtNode(final int ptNodePos, final FormatOptions formatOptions);

		/**
		* Reads a buffer and returns the memory representation of the dictionary.
		*
		* This high-level method takes a buffer and reads its contents, populating a
		* FusionDictionary structure. The optional dict argument is an existing dictionary to
		* which words from the buffer should be added. If it is null, a new dictionary is created.
		*
		* @param dict an optional dictionary to add words to, or null.
		* @return the created (or merged) dictionary.
		*/
		@UsedForTesting
		public FusionDictionary readDictionaryBinary(final FusionDictionary dict)
		throws FileNotFoundException, IOException, UnsupportedFormatException;

		// Flags for DictionaryBufferFactory.
		public static final int USE_READONLY_BYTEBUFFER = 0x01000000;
		public static final int USE_BYTEARRAY = 0x02000000;
		public static final int USE_WRITABLE_BYTEBUFFER = 0x04000000;
		public static final int MASK_DICTBUFFER = 0x0F000000;

		public interface DictionaryBufferFactory {
		public DictBuffer getDictionaryBuffer(final File file)
		throws FileNotFoundException, IOException;

java/src/com/android/inputmethod/latin/makedict/Ver3DictDecoder.java

+38 −7

Original line number	Diff line number	Diff line
		@@ -165,31 +165,53 @@ public class Ver3DictDecoder implements DictDecoder {
		}

		private final File mDictionaryBinaryFile;
		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) {
		mDictionaryBinaryFile = file;
		mDictBuffer = null;

		if ((factoryFlag & MASK_DICTBUFFER) == USE_READONLY_BYTEBUFFER) {
		mBufferFactory = new DictionaryBufferFromReadOnlyByteBufferFactory();
		} else if ((factoryFlag & MASK_DICTBUFFER) == USE_BYTEARRAY) {
		mBufferFactory = new DictionaryBufferFromByteArrayFactory();
		} else if ((factoryFlag & MASK_DICTBUFFER) == USE_WRITABLE_BYTEBUFFER) {
		mBufferFactory = new DictionaryBufferFromWritableByteBufferFactory();
		} else {
		mBufferFactory = new DictionaryBufferFromReadOnlyByteBufferFactory();
		}
		}

		public Ver3DictDecoder(final File file, final DictionaryBufferFactory factory) {
		mDictionaryBinaryFile = file;
		mBufferFactory = factory;
		}

		public void openDictBuffer(final DictDecoder.DictionaryBufferFactory factory)
		throws FileNotFoundException, IOException {
		mDictBuffer = factory.getDictionaryBuffer(mDictionaryBinaryFile);
		public void openDictBuffer() throws FileNotFoundException, IOException {
		mDictBuffer = mBufferFactory.getDictionaryBuffer(mDictionaryBinaryFile);
		}

		public DictBuffer getDictBuffer() {
		/* package */ DictBuffer getDictBuffer() {
		return mDictBuffer;
		}

		@UsedForTesting
		public DictBuffer openAndGetDictBuffer(final DictDecoder.DictionaryBufferFactory factory)
		throws FileNotFoundException, IOException {
		openDictBuffer(factory);
		/* package */ DictBuffer openAndGetDictBuffer() throws FileNotFoundException, IOException {
		openDictBuffer();
		return getDictBuffer();
		}

		@Override
		public FileHeader readHeader() throws IOException, UnsupportedFormatException {
		if (mDictBuffer == null) {
		openDictBuffer();
		}

		final int version = HeaderReader.readVersion(mDictBuffer);
		final int optionsFlags = HeaderReader.readOptionFlags(mDictBuffer);

		@@ -278,4 +300,13 @@ public class Ver3DictDecoder implements DictDecoder {
		return new CharGroupInfo(ptNodePos, addressPointer, flags, characters, frequency,
		parentAddress, childrenAddress, shortcutTargets, bigrams);
		}

		@Override
		public FusionDictionary readDictionaryBinary(final FusionDictionary dict)
		throws FileNotFoundException, IOException, UnsupportedFormatException {
		if (mDictBuffer == null) {
		openDictBuffer();
		}
		return BinaryDictDecoderUtils.readDictionaryBinary(this, dict);
		}
		}