コード例 #1
0
ファイル: ShingleFilter.cs プロジェクト: leotohill/lucene.net
 public InputWindowToken(ShingleFilter outerInstance, AttributeSource attSource)
 {
     this.outerInstance = outerInstance;
     this.attSource     = attSource;
     this.termAtt       = attSource.getAttribute(typeof(CharTermAttribute));
     this.offsetAtt     = attSource.getAttribute(typeof(OffsetAttribute));
 }
コード例 #2
0
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in .NET:
//ORIGINAL LINE: private SlowSynonymMap match(SlowSynonymMap map) throws java.io.IOException
        private SlowSynonymMap match(SlowSynonymMap map)
        {
            SlowSynonymMap result = null;

            if (map.submap != null)
            {
                AttributeSource tok = nextTok();
                if (tok != null)
                {
                    // clone ourselves.
                    if (tok == this)
                    {
                        tok = cloneAttributes();
                    }
                    // check for positionIncrement!=1?  if>1, should not match, if==0, check multiple at this level?
                    CharTermAttribute termAtt = tok.getAttribute(typeof(CharTermAttribute));
                    SlowSynonymMap    subMap  = map.submap.get(termAtt.buffer(), 0, termAtt.length());

                    if (subMap != null)
                    {
                        // recurse
                        result = match(subMap);
                    }

                    if (result != null)
                    {
                        matched.AddFirst(tok);
                    }
                    else
                    {
                        // push back unmatched token
                        pushTok(tok);
                    }
                }
            }

            // if no longer sequence matched, so if this node has synonyms, it's the match.
            if (result == null && map.synonyms != null)
            {
                result = map;
            }

            return(result);
        }
コード例 #3
0
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in .NET:
//ORIGINAL LINE: @Override public boolean incrementToken() throws java.io.IOException
        public override bool incrementToken()
        {
            if (hasMoreTokensInClone)
            {
                int start = breaker.current();
                int end   = breaker.next();
                if (end != BreakIterator.DONE)
                {
                    clonedToken.copyTo(this);
                    termAtt.copyBuffer(clonedTermAtt.buffer(), start, end - start);
                    if (hasIllegalOffsets)
                    {
                        offsetAtt.setOffset(clonedOffsetAtt.startOffset(), clonedOffsetAtt.endOffset());
                    }
                    else
                    {
                        offsetAtt.setOffset(clonedOffsetAtt.startOffset() + start, clonedOffsetAtt.startOffset() + end);
                    }
                    if (handlePosIncr)
                    {
                        posAtt.PositionIncrement = 1;
                    }
                    return(true);
                }
                hasMoreTokensInClone = false;
            }

            if (!input.incrementToken())
            {
                return(false);
            }

            if (termAtt.length() == 0 || char.UnicodeBlock.of(termAtt.charAt(0)) != char.UnicodeBlock.THAI)
            {
                return(true);
            }

            hasMoreTokensInClone = true;

            // if length by start + end offsets doesn't match the term text then assume
            // this is a synonym and don't adjust the offsets.
            hasIllegalOffsets = offsetAtt.endOffset() - offsetAtt.startOffset() != termAtt.length();

            // we lazy init the cloned token, as in ctor not all attributes may be added
            if (clonedToken == null)
            {
                clonedToken     = cloneAttributes();
                clonedTermAtt   = clonedToken.getAttribute(typeof(CharTermAttribute));
                clonedOffsetAtt = clonedToken.getAttribute(typeof(OffsetAttribute));
            }
            else
            {
                this.copyTo(clonedToken);
            }

            // reinit CharacterIterator
            charIterator.setText(clonedTermAtt.buffer(), 0, clonedTermAtt.length());
            breaker.Text = charIterator;
            int end = breaker.next();

            if (end != BreakIterator.DONE)
            {
                termAtt.Length = end;
                if (hasIllegalOffsets)
                {
                    offsetAtt.setOffset(clonedOffsetAtt.startOffset(), clonedOffsetAtt.endOffset());
                }
                else
                {
                    offsetAtt.setOffset(clonedOffsetAtt.startOffset(), clonedOffsetAtt.startOffset() + end);
                }
                // position increment keeps as it is for first token
                return(true);
            }
            return(false);
        }
コード例 #4
0
ファイル: ShingleFilter.cs プロジェクト: eladmarg/lucene.net
		public InputWindowToken(ShingleFilter outerInstance, AttributeSource attSource)
		{
			this.outerInstance = outerInstance;
		  this.attSource = attSource;
		  this.termAtt = attSource.getAttribute(typeof(CharTermAttribute));
		  this.offsetAtt = attSource.getAttribute(typeof(OffsetAttribute));
		}
コード例 #5
0
            public override bool accept(AttributeSource a)
            {
                CharTermAttribute termAtt = a.getAttribute(typeof(CharTermAttribute));

                return(termAtt.ToString().Equals("Dogs", StringComparison.CurrentCultureIgnoreCase));
            }