Hide physical structure of the dictionary from BinaryDictEncoderUtils.
Bug: 9618601 Change-Id: I01b8da42058d7c05bf7f4e6d43718032c2ad12c5
This commit is contained in:
Yuichiro Hanada
parent
cc2751ba03
commit
70e81af726
3 changed files with 230 additions and 150 deletions
|
|
@ -27,7 +27,6 @@ import java.io.ByteArrayOutputStream;
|
|||
import java.io.IOException;
|
||||
import java.io.OutputStream;
|
||||
import java.util.ArrayList;
|
||||
import java.util.Iterator;
|
||||
|
||||
/**
|
||||
* Encodes binary files for a FusionDictionary.
|
||||
|
|
@ -432,7 +431,7 @@ public class BinaryDictEncoderUtils {
|
|||
* @param formatOptions file format options.
|
||||
* @return the same array it was passed. The nodes have been updated for address and size.
|
||||
*/
|
||||
private static ArrayList<PtNodeArray> computeAddresses(final FusionDictionary dict,
|
||||
/* package */ static ArrayList<PtNodeArray> computeAddresses(final FusionDictionary dict,
|
||||
final ArrayList<PtNodeArray> flatNodes, final FormatOptions formatOptions) {
|
||||
// First get the worst possible sizes and offsets
|
||||
for (final PtNodeArray n : flatNodes) calculatePtNodeArrayMaximumSize(n, formatOptions);
|
||||
|
|
@ -484,7 +483,7 @@ public class BinaryDictEncoderUtils {
|
|||
*
|
||||
* @param arrays the list of node arrays to check
|
||||
*/
|
||||
private static void checkFlatPtNodeArrayList(final ArrayList<PtNodeArray> arrays) {
|
||||
/* package */ static void checkFlatPtNodeArrayList(final ArrayList<PtNodeArray> arrays) {
|
||||
int offset = 0;
|
||||
int index = 0;
|
||||
for (final PtNodeArray ptNodeArray : arrays) {
|
||||
|
|
@ -508,7 +507,8 @@ public class BinaryDictEncoderUtils {
|
|||
* @param position the position to write.
|
||||
* @return the size in bytes the address actually took.
|
||||
*/
|
||||
private static int writeChildrenPosition(final byte[] buffer, int index, final int position) {
|
||||
/* package */ static int writeChildrenPosition(final byte[] buffer, int index,
|
||||
final int position) {
|
||||
switch (getByteSize(position)) {
|
||||
case 1:
|
||||
buffer[index++] = (byte)position;
|
||||
|
|
@ -537,7 +537,7 @@ public class BinaryDictEncoderUtils {
|
|||
* @param position the position to write.
|
||||
* @return the size in bytes the address actually took.
|
||||
*/
|
||||
private static int writeSignedChildrenPosition(final byte[] buffer, int index,
|
||||
/* package */ static int writeSignedChildrenPosition(final byte[] buffer, int index,
|
||||
final int position) {
|
||||
if (!BinaryDictIOUtils.hasChildrenAddress(position)) {
|
||||
buffer[index] = buffer[index + 1] = buffer[index + 2] = 0;
|
||||
|
|
@ -598,7 +598,7 @@ public class BinaryDictEncoderUtils {
|
|||
return flags;
|
||||
}
|
||||
|
||||
private static byte makePtNodeFlags(final PtNode node, final int ptNodeAddress,
|
||||
/* package */ static byte makePtNodeFlags(final PtNode node, final int ptNodeAddress,
|
||||
final int childrenOffset, final FormatOptions formatOptions) {
|
||||
return (byte) makePtNodeFlags(node.mChars.length > 1, node.mFrequency >= 0,
|
||||
getByteSize(childrenOffset),
|
||||
|
|
@ -616,7 +616,7 @@ public class BinaryDictEncoderUtils {
|
|||
* @param word the second bigram, for debugging purposes
|
||||
* @return the flags
|
||||
*/
|
||||
private static final int makeBigramFlags(final boolean more, final int offset,
|
||||
/* package */ static final int makeBigramFlags(final boolean more, final int offset,
|
||||
int bigramFrequency, final int unigramFrequency, final String word) {
|
||||
int bigramFlags = (more ? FormatSpec.FLAG_BIGRAM_SHORTCUT_ATTR_HAS_NEXT : 0)
|
||||
+ (offset < 0 ? FormatSpec.FLAG_BIGRAM_ATTR_OFFSET_NEGATIVE : 0);
|
||||
|
|
@ -702,7 +702,7 @@ public class BinaryDictEncoderUtils {
|
|||
+ (frequency & FormatSpec.FLAG_BIGRAM_SHORTCUT_ATTR_FREQUENCY);
|
||||
}
|
||||
|
||||
private static final int writeParentAddress(final byte[] buffer, final int index,
|
||||
/* package */ static final int writeParentAddress(final byte[] buffer, final int index,
|
||||
final int address, final FormatOptions formatOptions) {
|
||||
if (BinaryDictIOUtils.supportsDynamicUpdate(formatOptions)) {
|
||||
if (address == FormatSpec.NO_PARENT_ADDRESS) {
|
||||
|
|
@ -721,7 +721,7 @@ public class BinaryDictEncoderUtils {
|
|||
}
|
||||
}
|
||||
|
||||
private static final int getChildrenPosition(final PtNode ptNode,
|
||||
/* package */ static final int getChildrenPosition(final PtNode ptNode,
|
||||
final FormatOptions formatOptions) {
|
||||
int positionOfChildrenPosField = ptNode.mCachedAddressAfterUpdate
|
||||
+ getNodeHeaderSize(ptNode, formatOptions);
|
||||
|
|
@ -736,35 +736,29 @@ public class BinaryDictEncoderUtils {
|
|||
* Write a PtNodeArray to memory. The PtNodeArray is expected to have its final position cached.
|
||||
*
|
||||
* @param dict the dictionary the node array is a part of (for relative offsets).
|
||||
* @param buffer the memory buffer to write to.
|
||||
* @param dictEncoder the dictionary encoder.
|
||||
* @param ptNodeArray the node array to write.
|
||||
* @param formatOptions file format options.
|
||||
* @return the address of the END of the node.
|
||||
*/
|
||||
@SuppressWarnings("unused")
|
||||
private static int writePlacedNode(final FusionDictionary dict, byte[] buffer,
|
||||
final PtNodeArray ptNodeArray, final FormatOptions formatOptions) {
|
||||
/* package */ static void writePlacedNode(final FusionDictionary dict,
|
||||
final DictEncoder dictEncoder, final PtNodeArray ptNodeArray,
|
||||
final FormatOptions formatOptions) {
|
||||
// TODO: Make the code in common with BinaryDictIOUtils#writePtNode
|
||||
int index = ptNodeArray.mCachedAddressAfterUpdate;
|
||||
dictEncoder.setPosition(ptNodeArray.mCachedAddressAfterUpdate);
|
||||
|
||||
final int ptNodeCount = ptNodeArray.mData.size();
|
||||
final int countSize = getPtNodeCountSize(ptNodeArray);
|
||||
final int parentAddress = ptNodeArray.mCachedParentAddress;
|
||||
if (1 == countSize) {
|
||||
buffer[index++] = (byte)ptNodeCount;
|
||||
} else if (2 == countSize) {
|
||||
// We need to signal 2-byte size by setting the top bit of the MSB to 1, so
|
||||
// we | 0x80 to do this.
|
||||
buffer[index++] = (byte)((ptNodeCount >> 8) | 0x80);
|
||||
buffer[index++] = (byte)(ptNodeCount & 0xFF);
|
||||
} else {
|
||||
throw new RuntimeException("Strange size from getGroupCountSize : " + countSize);
|
||||
}
|
||||
dictEncoder.writePtNodeCount(ptNodeCount);
|
||||
final int parentPosition =
|
||||
(ptNodeArray.mCachedParentAddress == FormatSpec.NO_PARENT_ADDRESS)
|
||||
? FormatSpec.NO_PARENT_ADDRESS
|
||||
: ptNodeArray.mCachedParentAddress + ptNodeArray.mCachedAddressAfterUpdate;
|
||||
for (int i = 0; i < ptNodeCount; ++i) {
|
||||
final PtNode ptNode = ptNodeArray.mData.get(i);
|
||||
if (index != ptNode.mCachedAddressAfterUpdate) {
|
||||
if (dictEncoder.getPosition() != ptNode.mCachedAddressAfterUpdate) {
|
||||
throw new RuntimeException("Bug: write index is not the same as the cached address "
|
||||
+ "of the node : " + index + " <> " + ptNode.mCachedAddressAfterUpdate);
|
||||
+ "of the node : " + dictEncoder.getPosition() + " <> "
|
||||
+ ptNode.mCachedAddressAfterUpdate);
|
||||
}
|
||||
// Sanity checks.
|
||||
if (DBG && ptNode.mFrequency > FormatSpec.MAX_TERMINAL_FREQUENCY) {
|
||||
|
|
@ -773,85 +767,23 @@ public class BinaryDictEncoderUtils {
|
|||
+ " : " + ptNode.mFrequency);
|
||||
}
|
||||
|
||||
final int childrenPosition = getChildrenPosition(ptNode, formatOptions);
|
||||
buffer[index++] = makePtNodeFlags(ptNode, index, childrenPosition,
|
||||
formatOptions);
|
||||
|
||||
if (parentAddress == FormatSpec.NO_PARENT_ADDRESS) {
|
||||
index = writeParentAddress(buffer, index, parentAddress, formatOptions);
|
||||
} else {
|
||||
index = writeParentAddress(buffer, index, parentAddress
|
||||
+ (ptNodeArray.mCachedAddressAfterUpdate
|
||||
- ptNode.mCachedAddressAfterUpdate),
|
||||
formatOptions);
|
||||
}
|
||||
|
||||
index = CharEncoding.writeCharArray(ptNode.mChars, buffer, index);
|
||||
if (ptNode.hasSeveralChars()) {
|
||||
buffer[index++] = FormatSpec.PTNODE_CHARACTERS_TERMINATOR;
|
||||
}
|
||||
if (ptNode.mFrequency >= 0) {
|
||||
buffer[index++] = (byte) ptNode.mFrequency;
|
||||
}
|
||||
|
||||
if (formatOptions.mSupportsDynamicUpdate) {
|
||||
index += writeSignedChildrenPosition(buffer, index, childrenPosition);
|
||||
} else {
|
||||
index += writeChildrenPosition(buffer, index, childrenPosition);
|
||||
}
|
||||
|
||||
// Write shortcuts
|
||||
if (null != ptNode.mShortcutTargets && !ptNode.mShortcutTargets.isEmpty()) {
|
||||
final int indexOfShortcutByteSize = index;
|
||||
index += FormatSpec.PTNODE_SHORTCUT_LIST_SIZE_SIZE;
|
||||
final Iterator<WeightedString> shortcutIterator =
|
||||
ptNode.mShortcutTargets.iterator();
|
||||
while (shortcutIterator.hasNext()) {
|
||||
final WeightedString target = shortcutIterator.next();
|
||||
int shortcutFlags = makeShortcutFlags(shortcutIterator.hasNext(),
|
||||
target.mFrequency);
|
||||
buffer[index++] = (byte)shortcutFlags;
|
||||
final int shortcutShift = CharEncoding.writeString(buffer, index, target.mWord);
|
||||
index += shortcutShift;
|
||||
}
|
||||
final int shortcutByteSize = index - indexOfShortcutByteSize;
|
||||
if (shortcutByteSize > 0xFFFF) {
|
||||
throw new RuntimeException("Shortcut list too large");
|
||||
}
|
||||
buffer[indexOfShortcutByteSize] = (byte)(shortcutByteSize >> 8);
|
||||
buffer[indexOfShortcutByteSize + 1] = (byte)(shortcutByteSize & 0xFF);
|
||||
}
|
||||
// Write bigrams
|
||||
if (null != ptNode.mBigrams) {
|
||||
final Iterator<WeightedString> bigramIterator = ptNode.mBigrams.iterator();
|
||||
while (bigramIterator.hasNext()) {
|
||||
final WeightedString bigram = bigramIterator.next();
|
||||
final PtNode target =
|
||||
FusionDictionary.findWordInTree(dict.mRootNodeArray, bigram.mWord);
|
||||
final int addressOfBigram = target.mCachedAddressAfterUpdate;
|
||||
final int unigramFrequencyForThisWord = target.mFrequency;
|
||||
final int offset = addressOfBigram
|
||||
- (index + FormatSpec.PTNODE_ATTRIBUTE_FLAGS_SIZE);
|
||||
int bigramFlags = makeBigramFlags(bigramIterator.hasNext(), offset,
|
||||
bigram.mFrequency, unigramFrequencyForThisWord, bigram.mWord);
|
||||
buffer[index++] = (byte)bigramFlags;
|
||||
final int bigramShift = writeChildrenPosition(buffer, index, Math.abs(offset));
|
||||
index += bigramShift;
|
||||
}
|
||||
}
|
||||
|
||||
dictEncoder.writePtNodeFlags(ptNode, parentPosition, formatOptions);
|
||||
dictEncoder.writeParentPosition(parentPosition, ptNode, formatOptions);
|
||||
dictEncoder.writeCharacters(ptNode.mChars, ptNode.hasSeveralChars());
|
||||
dictEncoder.writeFrequency(ptNode.mFrequency);
|
||||
dictEncoder.writeChildrenPosition(ptNode, formatOptions);
|
||||
dictEncoder.writeShortcuts(ptNode.mShortcutTargets);
|
||||
dictEncoder.writeBigrams(ptNode.mBigrams, dict);
|
||||
}
|
||||
if (formatOptions.mSupportsDynamicUpdate) {
|
||||
buffer[index] = buffer[index + 1] = buffer[index + 2]
|
||||
= FormatSpec.NO_FORWARD_LINK_ADDRESS;
|
||||
index += FormatSpec.FORWARD_LINK_ADDRESS_SIZE;
|
||||
dictEncoder.writeForwardLinkAddress(FormatSpec.NO_FORWARD_LINK_ADDRESS);
|
||||
}
|
||||
if (index != ptNodeArray.mCachedAddressAfterUpdate + ptNodeArray.mCachedSize) {
|
||||
throw new RuntimeException(
|
||||
"Not the same size : written " + (index - ptNodeArray.mCachedAddressAfterUpdate)
|
||||
if (dictEncoder.getPosition() != ptNodeArray.mCachedAddressAfterUpdate
|
||||
+ ptNodeArray.mCachedSize) {
|
||||
throw new RuntimeException("Not the same size : written "
|
||||
+ (dictEncoder.getPosition() - ptNodeArray.mCachedAddressAfterUpdate)
|
||||
+ " bytes from a node that should have " + ptNodeArray.mCachedSize + " bytes");
|
||||
}
|
||||
return index;
|
||||
}
|
||||
|
||||
/**
|
||||
|
|
@ -862,7 +794,7 @@ public class BinaryDictEncoderUtils {
|
|||
*
|
||||
* @param ptNodeArrays the list of PtNode arrays.
|
||||
*/
|
||||
private static void showStatistics(ArrayList<PtNodeArray> ptNodeArrays) {
|
||||
/* package */ static void showStatistics(ArrayList<PtNodeArray> ptNodeArrays) {
|
||||
int firstTerminalAddress = Integer.MAX_VALUE;
|
||||
int lastTerminalAddress = Integer.MIN_VALUE;
|
||||
int size = 0;
|
||||
|
|
@ -968,49 +900,4 @@ public class BinaryDictEncoderUtils {
|
|||
|
||||
headerBuffer.close();
|
||||
}
|
||||
|
||||
/**
|
||||
* Dumps a FusionDictionary to a file.
|
||||
*
|
||||
* @param destination the stream to write the dictionary body to.
|
||||
* @param dict the dictionary to write.
|
||||
* @param formatOptions file format options.
|
||||
*/
|
||||
/* package */ static void writeDictionaryBody(final OutputStream destination,
|
||||
final FusionDictionary dict, final FormatOptions formatOptions) throws IOException {
|
||||
|
||||
// Addresses are limited to 3 bytes, but since addresses can be relative to each node
|
||||
// array, the structure itself is not limited to 16MB. However, if it is over 16MB deciding
|
||||
// the order of the PtNode arrays becomes a quite complicated problem, because though the
|
||||
// dictionary itself does not have a size limit, each node array must still be within 16MB
|
||||
// of all its children and parents. As long as this is ensured, the dictionary file may
|
||||
// grow to any size.
|
||||
|
||||
// Leave the choice of the optimal node order to the flattenTree function.
|
||||
MakedictLog.i("Flattening the tree...");
|
||||
ArrayList<PtNodeArray> flatNodes = flattenTree(dict.mRootNodeArray);
|
||||
|
||||
MakedictLog.i("Computing addresses...");
|
||||
computeAddresses(dict, flatNodes, formatOptions);
|
||||
MakedictLog.i("Checking PtNode array...");
|
||||
if (DBG) checkFlatPtNodeArrayList(flatNodes);
|
||||
|
||||
// Create a buffer that matches the final dictionary size.
|
||||
final PtNodeArray lastNodeArray = flatNodes.get(flatNodes.size() - 1);
|
||||
final int bufferSize = lastNodeArray.mCachedAddressAfterUpdate + lastNodeArray.mCachedSize;
|
||||
final byte[] buffer = new byte[bufferSize];
|
||||
|
||||
MakedictLog.i("Writing file...");
|
||||
int dataEndOffset = 0;
|
||||
for (PtNodeArray nodeArray : flatNodes) {
|
||||
dataEndOffset = writePlacedNode(dict, buffer, nodeArray, formatOptions);
|
||||
}
|
||||
|
||||
if (DBG) showStatistics(flatNodes);
|
||||
|
||||
destination.write(buffer, 0, dataEndOffset);
|
||||
|
||||
destination.close();
|
||||
MakedictLog.i("Done");
|
||||
}
|
||||
}
|
||||
|
|
|
|||
|
|
@ -17,8 +17,11 @@
|
|||
package com.android.inputmethod.latin.makedict;
|
||||
|
||||
import com.android.inputmethod.latin.makedict.FormatSpec.FormatOptions;
|
||||
import com.android.inputmethod.latin.makedict.FusionDictionary.PtNode;
|
||||
import com.android.inputmethod.latin.makedict.FusionDictionary.WeightedString;
|
||||
|
||||
import java.io.IOException;
|
||||
import java.util.ArrayList;
|
||||
|
||||
/**
|
||||
* An interface of binary dictionary encoder.
|
||||
|
|
@ -26,4 +29,32 @@ import java.io.IOException;
|
|||
public interface DictEncoder {
|
||||
public void writeDictionary(final FusionDictionary dict, final FormatOptions formatOptions)
|
||||
throws IOException, UnsupportedFormatException;
|
||||
|
||||
public void setPosition(final int position);
|
||||
public int getPosition();
|
||||
public void writePtNodeCount(final int ptNodeCount);
|
||||
public void writePtNodeFlags(final PtNode ptNode, final int parentAddress,
|
||||
final FormatOptions formatOptions);
|
||||
public void writeParentPosition(final int parentPosition, final PtNode ptNode,
|
||||
final FormatOptions formatOptions);
|
||||
public void writeCharacters(final int[] characters, final boolean hasSeveralChars);
|
||||
public void writeFrequency(final int frequency);
|
||||
public void writeChildrenPosition(final PtNode ptNode, final FormatOptions formatOptions);
|
||||
|
||||
/**
|
||||
* Write a shortcut attributes list to memory.
|
||||
*
|
||||
* @param shortcuts the shortcut attributes list.
|
||||
*/
|
||||
public void writeShortcuts(final ArrayList<WeightedString> shortcuts);
|
||||
|
||||
/**
|
||||
* Write a bigram attributes list to memory.
|
||||
*
|
||||
* @param bigrams the bigram attributes list.
|
||||
* @param dict the dictionary the node array is a part of (for relative offsets).
|
||||
*/
|
||||
public void writeBigrams(final ArrayList<WeightedString> bigrams, final FusionDictionary dict);
|
||||
|
||||
public void writeForwardLinkAddress(final int forwardLinkAddress);
|
||||
}
|
||||
|
|
|
|||
|
|
@ -16,13 +16,19 @@
|
|||
|
||||
package com.android.inputmethod.latin.makedict;
|
||||
|
||||
import com.android.inputmethod.latin.makedict.BinaryDictDecoderUtils.CharEncoding;
|
||||
import com.android.inputmethod.latin.makedict.FormatSpec.FormatOptions;
|
||||
import com.android.inputmethod.latin.makedict.FusionDictionary.PtNode;
|
||||
import com.android.inputmethod.latin.makedict.FusionDictionary.PtNodeArray;
|
||||
import com.android.inputmethod.latin.makedict.FusionDictionary.WeightedString;
|
||||
|
||||
import java.io.File;
|
||||
import java.io.FileNotFoundException;
|
||||
import java.io.FileOutputStream;
|
||||
import java.io.IOException;
|
||||
import java.io.OutputStream;
|
||||
import java.util.ArrayList;
|
||||
import java.util.Iterator;
|
||||
|
||||
/**
|
||||
* An implementation of DictEncoder for version 3 binary dictionary.
|
||||
|
|
@ -31,10 +37,13 @@ public class Ver3DictEncoder implements DictEncoder {
|
|||
|
||||
private final File mDictFile;
|
||||
private OutputStream mOutStream;
|
||||
private byte[] mBuffer;
|
||||
private int mPosition;
|
||||
|
||||
public Ver3DictEncoder(final File dictFile) {
|
||||
mDictFile = dictFile;
|
||||
mOutStream = null;
|
||||
mBuffer = null;
|
||||
}
|
||||
|
||||
// This constructor is used only by BinaryDictOffdeviceUtilsTests.
|
||||
|
|
@ -57,13 +66,166 @@ public class Ver3DictEncoder implements DictEncoder {
|
|||
}
|
||||
|
||||
@Override
|
||||
public void writeDictionary(FusionDictionary dict, FormatOptions formatOptions)
|
||||
public void writeDictionary(final FusionDictionary dict, final FormatOptions formatOptions)
|
||||
throws IOException, UnsupportedFormatException {
|
||||
if (mOutStream == null) {
|
||||
openStream();
|
||||
}
|
||||
BinaryDictEncoderUtils.writeDictionaryHeader(mOutStream, dict, formatOptions);
|
||||
BinaryDictEncoderUtils.writeDictionaryBody(mOutStream, dict, formatOptions);
|
||||
|
||||
// Addresses are limited to 3 bytes, but since addresses can be relative to each node
|
||||
// array, the structure itself is not limited to 16MB. However, if it is over 16MB deciding
|
||||
// the order of the PtNode arrays becomes a quite complicated problem, because though the
|
||||
// dictionary itself does not have a size limit, each node array must still be within 16MB
|
||||
// of all its children and parents. As long as this is ensured, the dictionary file may
|
||||
// grow to any size.
|
||||
|
||||
// Leave the choice of the optimal node order to the flattenTree function.
|
||||
MakedictLog.i("Flattening the tree...");
|
||||
ArrayList<PtNodeArray> flatNodes = BinaryDictEncoderUtils.flattenTree(dict.mRootNodeArray);
|
||||
|
||||
MakedictLog.i("Computing addresses...");
|
||||
BinaryDictEncoderUtils.computeAddresses(dict, flatNodes, formatOptions);
|
||||
MakedictLog.i("Checking PtNode array...");
|
||||
if (MakedictLog.DBG) BinaryDictEncoderUtils.checkFlatPtNodeArrayList(flatNodes);
|
||||
|
||||
// Create a buffer that matches the final dictionary size.
|
||||
final PtNodeArray lastNodeArray = flatNodes.get(flatNodes.size() - 1);
|
||||
final int bufferSize = lastNodeArray.mCachedAddressAfterUpdate + lastNodeArray.mCachedSize;
|
||||
mBuffer = new byte[bufferSize];
|
||||
|
||||
MakedictLog.i("Writing file...");
|
||||
|
||||
for (PtNodeArray nodeArray : flatNodes) {
|
||||
BinaryDictEncoderUtils.writePlacedNode(dict, this, nodeArray, formatOptions);
|
||||
}
|
||||
if (MakedictLog.DBG) BinaryDictEncoderUtils.showStatistics(flatNodes);
|
||||
mOutStream.write(mBuffer, 0, mPosition);
|
||||
|
||||
MakedictLog.i("Done");
|
||||
close();
|
||||
}
|
||||
|
||||
@Override
|
||||
public void setPosition(final int position) {
|
||||
if (mBuffer == null || position < 0 || position >= mBuffer.length) return;
|
||||
mPosition = position;
|
||||
}
|
||||
|
||||
@Override
|
||||
public int getPosition() {
|
||||
return mPosition;
|
||||
}
|
||||
|
||||
@Override
|
||||
public void writePtNodeCount(final int ptNodeCount) {
|
||||
final int countSize = BinaryDictIOUtils.getPtNodeCountSize(ptNodeCount);
|
||||
if (1 == countSize) {
|
||||
mBuffer[mPosition++] = (byte) ptNodeCount;
|
||||
} else if (2 == countSize) {
|
||||
mBuffer[mPosition++] = (byte) ((ptNodeCount >> 8) & 0xFF);
|
||||
mBuffer[mPosition++] = (byte) (ptNodeCount & 0xFF);
|
||||
} else {
|
||||
throw new RuntimeException("Strange size from getGroupCountSize : " + countSize);
|
||||
}
|
||||
}
|
||||
|
||||
@Override
|
||||
public void writePtNodeFlags(final PtNode ptNode, final int parentAddress,
|
||||
final FormatOptions formatOptions) {
|
||||
final int childrenPos = BinaryDictEncoderUtils.getChildrenPosition(ptNode, formatOptions);
|
||||
mBuffer[mPosition++] = BinaryDictEncoderUtils.makePtNodeFlags(ptNode, mPosition,
|
||||
childrenPos, formatOptions);
|
||||
}
|
||||
|
||||
@Override
|
||||
public void writeParentPosition(final int parentPosition, final PtNode ptNode,
|
||||
final FormatOptions formatOptions) {
|
||||
if (parentPosition == FormatSpec.NO_PARENT_ADDRESS) {
|
||||
mPosition = BinaryDictEncoderUtils.writeParentAddress(mBuffer, mPosition,
|
||||
parentPosition, formatOptions);
|
||||
} else {
|
||||
mPosition = BinaryDictEncoderUtils.writeParentAddress(mBuffer, mPosition,
|
||||
parentPosition - ptNode.mCachedAddressAfterUpdate, formatOptions);
|
||||
}
|
||||
}
|
||||
|
||||
@Override
|
||||
public void writeCharacters(final int[] codePoints, final boolean hasSeveralChars) {
|
||||
mPosition = CharEncoding.writeCharArray(codePoints, mBuffer, mPosition);
|
||||
if (hasSeveralChars) {
|
||||
mBuffer[mPosition++] = FormatSpec.PTNODE_CHARACTERS_TERMINATOR;
|
||||
}
|
||||
}
|
||||
|
||||
@Override
|
||||
public void writeFrequency(final int frequency) {
|
||||
if (frequency >= 0) {
|
||||
mBuffer[mPosition++] = (byte) frequency;
|
||||
}
|
||||
}
|
||||
|
||||
@Override
|
||||
public void writeChildrenPosition(final PtNode ptNode, final FormatOptions formatOptions) {
|
||||
final int childrenPos = BinaryDictEncoderUtils.getChildrenPosition(ptNode, formatOptions);
|
||||
if (formatOptions.mSupportsDynamicUpdate) {
|
||||
mPosition += BinaryDictEncoderUtils.writeSignedChildrenPosition(mBuffer, mPosition,
|
||||
childrenPos);
|
||||
} else {
|
||||
mPosition += BinaryDictEncoderUtils.writeChildrenPosition(mBuffer, mPosition,
|
||||
childrenPos);
|
||||
}
|
||||
}
|
||||
|
||||
@Override
|
||||
public void writeShortcuts(final ArrayList<WeightedString> shortcuts) {
|
||||
if (null == shortcuts || shortcuts.isEmpty()) return;
|
||||
|
||||
final int indexOfShortcutByteSize = mPosition;
|
||||
mPosition += FormatSpec.PTNODE_SHORTCUT_LIST_SIZE_SIZE;
|
||||
final Iterator<WeightedString> shortcutIterator = shortcuts.iterator();
|
||||
while (shortcutIterator.hasNext()) {
|
||||
final WeightedString target = shortcutIterator.next();
|
||||
final int shortcutFlags = BinaryDictEncoderUtils.makeShortcutFlags(
|
||||
shortcutIterator.hasNext(),
|
||||
target.mFrequency);
|
||||
mBuffer[mPosition++] = (byte)shortcutFlags;
|
||||
final int shortcutShift = CharEncoding.writeString(mBuffer, mPosition, target.mWord);
|
||||
mPosition += shortcutShift;
|
||||
}
|
||||
final int shortcutByteSize = mPosition - indexOfShortcutByteSize;
|
||||
if (shortcutByteSize > 0xFFFF) {
|
||||
throw new RuntimeException("Shortcut list too large");
|
||||
}
|
||||
mBuffer[indexOfShortcutByteSize] = (byte)((shortcutByteSize >> 8) & 0xFF);
|
||||
mBuffer[indexOfShortcutByteSize + 1] = (byte)(shortcutByteSize & 0xFF);
|
||||
}
|
||||
|
||||
@Override
|
||||
public void writeBigrams(final ArrayList<WeightedString> bigrams, final FusionDictionary dict) {
|
||||
if (bigrams == null) return;
|
||||
|
||||
final Iterator<WeightedString> bigramIterator = bigrams.iterator();
|
||||
while (bigramIterator.hasNext()) {
|
||||
final WeightedString bigram = bigramIterator.next();
|
||||
final PtNode target =
|
||||
FusionDictionary.findWordInTree(dict.mRootNodeArray, bigram.mWord);
|
||||
final int addressOfBigram = target.mCachedAddressAfterUpdate;
|
||||
final int unigramFrequencyForThisWord = target.mFrequency;
|
||||
final int offset = addressOfBigram
|
||||
- (mPosition + FormatSpec.PTNODE_ATTRIBUTE_FLAGS_SIZE);
|
||||
int bigramFlags = BinaryDictEncoderUtils.makeBigramFlags(bigramIterator.hasNext(),
|
||||
offset, bigram.mFrequency, unigramFrequencyForThisWord, bigram.mWord);
|
||||
mBuffer[mPosition++] = (byte) bigramFlags;
|
||||
mPosition += BinaryDictEncoderUtils.writeChildrenPosition(mBuffer, mPosition,
|
||||
Math.abs(offset));
|
||||
}
|
||||
}
|
||||
|
||||
@Override
|
||||
public void writeForwardLinkAddress(final int forwardLinkAddress) {
|
||||
mBuffer[mPosition++] = (byte) ((forwardLinkAddress >> 16) & 0xFF);
|
||||
mBuffer[mPosition++] = (byte) ((forwardLinkAddress >> 8) & 0xFF);
|
||||
mBuffer[mPosition++] = (byte) (forwardLinkAddress & 0xFF);
|
||||
}
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in a new issue