/* (non-Javadoc)
* @see org.apache.lucene.analysis.TokenStream#incrementToken()
*/
@Override
public boolean incrementToken() throws IOException {
// 清除所有的词元属性
clearAttributes();
skippedPositions = 0;
Lexeme nextLexeme = _IKImplement.next();
if (nextLexeme != null) {
posIncrAtt.setPositionIncrement(skippedPositions + 1);
// 将Lexeme转成Attributes
// 设置词元文本
termAtt.append(nextLexeme.getLexemeText());
// 设置词元长度
termAtt.setLength(nextLexeme.getLength());
// 设置词元位移
offsetAtt.setOffset(
correctOffset(nextLexeme.getBeginPosition()), correctOffset(nextLexeme.getEndPosition()));
// 记录分词的最后位置
endPosition = nextLexeme.getEndPosition();
// 记录词元分类
typeAtt.setType(nextLexeme.getLexemeTypeString());
// 返会true告知还有下个词元
return true;
}
// 返会false告知词元输出完毕
return false;
}
@Override
public boolean incrementToken() throws IOException {
if (input.incrementToken()) {
char buffer[] = termAtt.buffer();
int length = termAtt.length();
for (int i = 0; i < length; i++) {
int ch = Character.codePointAt(buffer, i, length);
// look for digits outside of basic latin
if (ch > 0x7F && Character.isDigit(ch)) {
// replace with equivalent basic latin digit
buffer[i] = (char) ('0' + Character.getNumericValue(ch));
// if the original was supplementary, shrink the string
if (ch > 0xFFFF) {
length = StemmerUtil.delete(buffer, i + 1, length);
termAtt.setLength(length);
}
}
}
return true;
} else {
return false;
}
}
/*
* (non-Javadoc)
*
* @see org.apache.lucene.analysis.TokenStream#next()
*/
@Override
public final boolean incrementToken() throws IOException {
clearAttributes();
skippedPositions = 0;
while (true) {
int tokenType = scanner.getNextToken();
if (tokenType == StandardTokenizerInterface.YYEOF) {
return false;
}
if (scanner.yylength() <= maxTokenLength) {
posIncrAtt.setPositionIncrement(skippedPositions + 1);
scanner.getText(termAtt);
final int start = scanner.yychar();
offsetAtt.setOffset(correctOffset(start), correctOffset(start + termAtt.length()));
// This 'if' should be removed in the next release. For now, it converts
// invalid acronyms to HOST. When removed, only the 'else' part should
// remain.
if (tokenType == StandardTokenizer.ACRONYM_DEP) {
typeAtt.setType(StandardTokenizer.TOKEN_TYPES[StandardTokenizer.HOST]);
termAtt.setLength(termAtt.length() - 1); // remove extra '.'
} else {
typeAtt.setType(StandardTokenizer.TOKEN_TYPES[tokenType]);
}
return true;
} else
// When we skip a too-long term, we still increment the
// position increment
skippedPositions++;
}
}
@Override
public boolean incrementToken() {
if (index < n) {
clearAttributes();
termAtt.buffer()[0] = 'a';
termAtt.setLength(1);
index++;
return true;
}
return false;
}
@Override
public boolean incrementToken() throws IOException {
if (input.incrementToken()) {
if (termAtt.length() > 0 && termAtt.buffer()[0] == 't') {
termAtt.setLength(0);
}
return true;
} else {
return false;
}
}
@Override
public boolean incrementToken() throws IOException {
if (input.incrementToken()) {
if (!keywordAttr.isKeyword()) {
final int newlen = stemmer.stem(termAtt.buffer(), termAtt.length());
termAtt.setLength(newlen);
}
return true;
} else {
return false;
}
}
@Override
public final boolean incrementToken() throws IOException {
if (input.incrementToken()) {
final int length = termAttribute.length();
if (length > size) {
termAttribute.setLength(size);
}
return true;
} else {
return false;
}
}
@Override
public boolean incrementToken() throws IOException {
if (input.incrementToken()) {
if (!keywordAttr.isKeyword()) {
// this stemmer increases word length by 1: worst case '*çom' -> '*ción'
final int len = termAtt.length();
final int newlen = stemmer.stem(termAtt.resizeBuffer(len + 1), len);
termAtt.setLength(newlen);
}
return true;
} else {
return false;
}
}
@Override
public boolean incrementToken() throws IOException {
if (!input.incrementToken()) {
return false;
}
final char[] buffer = termAtt.buffer();
final int bufferLength = termAtt.length();
if (bufferLength >= 2
&& buffer[bufferLength - 2] == '\''
&& (buffer[bufferLength - 1] == 's' || buffer[bufferLength - 1] == 'S'))
termAtt.setLength(bufferLength - 2); // Strip last 2 characters off
return true;
}
/** Writes the joined unhyphenated term */
private void unhyphenate() {
int endOffset = offsetAttribute.endOffset();
restoreState(savedState);
savedState = null;
char term[] = termAttribute.buffer();
int length = hyphenated.length();
if (length > termAttribute.length()) {
term = termAttribute.resizeBuffer(length);
}
hyphenated.getChars(0, length, term, 0);
termAttribute.setLength(length);
offsetAttribute.setOffset(offsetAttribute.startOffset(), endOffset);
hyphenated.setLength(0);
}
@Override
public boolean incrementToken() throws IOException {
if (input.incrementToken()) {
final char[] buffer = termAtt.buffer();
final int length = termAtt.length();
for (int i = 0; i < length; i++) {
if (buffer[i] == delimiter) {
payAtt.setPayload(encoder.encode(buffer, i + 1, (length - (i + 1))));
termAtt.setLength(i); // simply set a new length
return true;
}
}
// we have not seen the delimiter
payAtt.setPayload(null);
return true;
} else return false;
}
@Override
public boolean incrementToken() throws IOException {
if (input.incrementToken()) {
char[] termBuffer = termAtt.buffer();
String termText = new String(termBuffer, 0, termAtt.length());
collator.getRawCollationKey(termText, reusableKey);
int encodedLength =
IndexableBinaryStringTools.getEncodedLength(reusableKey.bytes, 0, reusableKey.size);
if (encodedLength > termBuffer.length) {
termAtt.resizeBuffer(encodedLength);
}
termAtt.setLength(encodedLength);
IndexableBinaryStringTools.encode(
reusableKey.bytes, 0, reusableKey.size, termAtt.buffer(), 0, encodedLength);
return true;
} else {
return false;
}
}
@Override
public final boolean incrementToken() throws IOException {
if (!done) {
clearAttributes();
done = true;
int upto = 0;
char[] buffer = termAtt.buffer();
while (true) {
final int length = input.read(buffer, upto, buffer.length - upto);
if (length == -1) break;
upto += length;
if (upto == buffer.length) buffer = termAtt.resizeBuffer(1 + buffer.length);
}
termAtt.setLength(upto);
finalOffset = correctOffset(upto);
offsetAtt.setOffset(correctOffset(0), finalOffset);
return true;
}
return false;
}
@Override
public final boolean incrementToken() throws IOException {
clearAttributes();
if (!done) {
done = true;
int upto = 0;
char[] buffer = termAtt.buffer();
while (true) {
final int length = input.read(buffer, upto, buffer.length - upto);
if (length == -1) break;
upto += length;
if (upto == buffer.length) buffer = termAtt.resizeBuffer(1 + buffer.length);
}
termAtt.setLength(upto);
String str = termAtt.toString();
termAtt.setEmpty();
StringBuilder stringBuilder = new StringBuilder();
StringBuilder firstLetters = new StringBuilder();
for (int i = 0; i < str.length(); i++) {
char c = str.charAt(i);
if (c < 128) {
stringBuilder.append(c);
} else {
try {
String[] strs = PinyinHelper.toHanyuPinyinStringArray(c, format);
if (strs != null) {
// get first result by default
String first_value = strs[0];
// TODO more than one pinyin
stringBuilder.append(first_value);
if (this.padding_char.length() > 0) {
stringBuilder.append(this.padding_char);
}
firstLetters.append(first_value.charAt(0));
}
} catch (BadHanyuPinyinOutputFormatCombination badHanyuPinyinOutputFormatCombination) {
badHanyuPinyinOutputFormatCombination.printStackTrace();
}
}
}
// let's join them
if (first_letter.equals("prefix")) {
termAtt.append(firstLetters.toString());
if (this.padding_char.length() > 0) {
termAtt.append(this.padding_char); // TODO splitter
}
termAtt.append(stringBuilder.toString());
} else if (first_letter.equals("append")) {
termAtt.append(stringBuilder.toString());
if (this.padding_char.length() > 0) {
if (!stringBuilder.toString().endsWith(this.padding_char)) {
termAtt.append(this.padding_char);
}
}
termAtt.append(firstLetters.toString());
} else if (first_letter.equals("none")) {
termAtt.append(stringBuilder.toString());
} else if (first_letter.equals("only")) {
termAtt.append(firstLetters.toString());
}
finalOffset = correctOffset(upto);
offsetAtt.setOffset(correctOffset(0), finalOffset);
return true;
}
return false;
}
@Override
public final boolean incrementToken() throws IOException {
clearAttributes();
termAtt.append(resultToken);
if (resultToken.length() == 0) {
posAtt.setPositionIncrement(1);
} else {
posAtt.setPositionIncrement(0);
}
int length = 0;
boolean added = false;
if (endDelimiter) {
termAtt.append(replacement);
length++;
endDelimiter = false;
added = true;
}
while (true) {
int c = input.read();
if (c >= 0) {
charsRead++;
} else {
if (skipped > skip) {
length += resultToken.length();
termAtt.setLength(length);
offsetAtt.setOffset(correctOffset(startPosition), correctOffset(startPosition + length));
if (added) {
resultToken.setLength(0);
resultToken.append(termAtt.buffer(), 0, length);
}
return added;
} else {
return false;
}
}
if (!added) {
added = true;
skipped++;
if (skipped > skip) {
termAtt.append(c == delimiter ? replacement : (char) c);
length++;
} else {
startPosition++;
}
} else {
if (c == delimiter) {
if (skipped > skip) {
endDelimiter = true;
break;
}
skipped++;
if (skipped > skip) {
termAtt.append(replacement);
length++;
} else {
startPosition++;
}
} else {
if (skipped > skip) {
termAtt.append((char) c);
length++;
} else {
startPosition++;
}
}
}
}
length += resultToken.length();
termAtt.setLength(length);
offsetAtt.setOffset(correctOffset(startPosition), correctOffset(startPosition + length));
resultToken.setLength(0);
resultToken.append(termAtt.buffer(), 0, length);
return true;
}
/**
* lucene 4.2x의 경우 데이터가 있으면 자소분리 후 true가 떨어지나, 여기서는 false로 떨어져 부득이하게 ioBuffer사이즈 상태로 조건변경
* (CharacterUtils.fill)
*
* @author 최일규
* @since 2014-07-11
*/
@Override
public final boolean incrementToken() throws IOException {
clearAttributes();
int length = 0;
int start = -1; // this variable is always initialized
char[] buffer = termAtt.buffer();
while (true) {
if (bufferIndex >= dataLen) {
offset += dataLen;
boolean isDecompose =
charUtils.fill(ioBuffer, jasoDecompose(input, decomposeMode, typoMode));
// 버퍼사이즈가 있으면 분석한다. (return false일때까지... 재귀호출)
if (ioBuffer.getLength() == 0) {
dataLen = 0; // so next offset += dataLen won't decrement offset
if (length > 0) {
break;
} else {
finalOffset = correctOffset(offset);
return false;
}
}
dataLen = ioBuffer.getLength();
bufferIndex = 0;
}
// use CharacterUtils here to support < 3.1 UTF-16 code unit behavior if the char based
// methods are gone
final int c = charUtils.codePointAt(ioBuffer.getBuffer(), bufferIndex, dataLen);
bufferIndex += Character.charCount(c);
// if it's a token char
if (isTokenChar(c)) {
// start of token
if (length == 0) {
assert start == -1;
start = offset + bufferIndex - 1;
// check if a supplementary could run out of bounds
} else if (length >= buffer.length - 1) {
// make sure a supplementary fits in the buffer
buffer = termAtt.resizeBuffer(2 + length);
}
// buffer it, normalized
length += Character.toChars(normalize(c), buffer, length);
if (length >= MAX_WORD_LEN) {
break;
}
} else if (length > 0) {
// return 'em
break;
}
}
termAtt.setLength(length);
assert start != -1;
offsetAtt.setOffset(correctOffset(start), finalOffset = correctOffset(start + length));
return true;
}