Example usage for org.apache.lucene.analysis.tokenattributes KeywordAttribute isKeyword

List of usage examples for org.apache.lucene.analysis.tokenattributes KeywordAttribute isKeyword

Introduction

In this page you can find the example usage for org.apache.lucene.analysis.tokenattributes KeywordAttribute isKeyword.

Prototype

public boolean isKeyword();

Source Link

Document

Returns true if the current token is a keyword, otherwise false

Usage

From source file:com.qwazr.search.index.TermDefinition.java

License:Apache License

TermDefinition(CharTermAttribute charTermAttr, FlagsAttribute flagsAttr, OffsetAttribute offsetAttr,
        PositionIncrementAttribute posIncAttr, PositionLengthAttribute posLengthAttr, TypeAttribute typeAttr,
        KeywordAttribute keywordAttr) {
    char_term = charTermAttr == null ? null : charTermAttr.toString();
    if (offsetAttr != null) {
        start_offset = offsetAttr.startOffset();
        end_offset = offsetAttr.endOffset();
    } else {//from   w w w  .  j av  a2s . com
        start_offset = null;
        end_offset = null;
    }
    flags = flagsAttr == null ? null : flagsAttr.getFlags();
    position_increment = posIncAttr == null ? null : posIncAttr.getPositionIncrement();
    position_length = posLengthAttr == null ? null : posLengthAttr.getPositionLength();
    type = typeAttr == null ? null : typeAttr.type();
    is_keyword = keywordAttr == null ? null : keywordAttr.isKeyword();
}

From source file:org.hibernate.search.indexes.serialization.avro.impl.AvroSerializer.java

License:Open Source License

private Object buildAttributeImpl(AttributeImpl attr) {
    if (attr instanceof AnalysisRequestHandlerBase.TokenTrackingAttributeImpl) {
        GenericRecord record = new GenericData.Record(protocol.getType("TokenTrackingAttribute"));
        int[] positions = ((AnalysisRequestHandlerBase.TokenTrackingAttributeImpl) attr).getPositions();
        List<Integer> fullPositions = new ArrayList<Integer>(positions.length);
        for (int position : positions) {
            fullPositions.add(position);
        }/*from w w w  .  j  a  va 2  s . c  o  m*/
        record.put("positions", fullPositions);
        return record;
    } else if (attr instanceof CharTermAttributeImpl) {
        GenericRecord record = new GenericData.Record(protocol.getType("CharTermAttribute"));
        CharTermAttribute charAttr = (CharTermAttribute) attr;
        record.put("sequence", charAttr.toString());
        return record;
    } else if (attr instanceof PayloadAttribute) {
        GenericRecord record = new GenericData.Record(protocol.getType("PayloadAttribute"));
        PayloadAttribute payloadAttr = (PayloadAttribute) attr;
        record.put("payload", ByteBuffer.wrap(payloadAttr.getPayload().toByteArray()));
        return record;
    } else if (attr instanceof KeywordAttribute) {
        GenericRecord record = new GenericData.Record(protocol.getType("KeywordAttribute"));
        KeywordAttribute narrowedAttr = (KeywordAttribute) attr;
        record.put("isKeyword", narrowedAttr.isKeyword());
        return record;
    } else if (attr instanceof PositionIncrementAttribute) {
        GenericRecord record = new GenericData.Record(protocol.getType("PositionIncrementAttribute"));
        PositionIncrementAttribute narrowedAttr = (PositionIncrementAttribute) attr;
        record.put("positionIncrement", narrowedAttr.getPositionIncrement());
        return record;
    } else if (attr instanceof FlagsAttribute) {
        GenericRecord record = new GenericData.Record(protocol.getType("FlagsAttribute"));
        FlagsAttribute narrowedAttr = (FlagsAttribute) attr;
        record.put("flags", narrowedAttr.getFlags());
        return record;
    } else if (attr instanceof TypeAttribute) {
        GenericRecord record = new GenericData.Record(protocol.getType("TypeAttribute"));
        TypeAttribute narrowedAttr = (TypeAttribute) attr;
        record.put("type", narrowedAttr.type());
        return record;
    } else if (attr instanceof OffsetAttribute) {
        GenericRecord record = new GenericData.Record(protocol.getType("OffsetAttribute"));
        OffsetAttribute narrowedAttr = (OffsetAttribute) attr;
        record.put("startOffset", narrowedAttr.startOffset());
        record.put("endOffset", narrowedAttr.endOffset());
        return record;
    } else if (attr instanceof Serializable) {
        return ByteBuffer.wrap(toByteArray(attr));
    } else {
        throw log.attributeNotRecognizedNorSerializable(attr.getClass());
    }
}

From source file:uk.gov.nationalarchives.discovery.taxonomy.common.repository.lucene.analyzer.TaxonomyGeneralAnalyzerTest.java

License:Mozilla Public License

public static void assertTokenStreamContents(TokenStream ts, String[] output, int startOffsets[],
        int endOffsets[], String types[], int posIncrements[], int posLengths[], Integer finalOffset,
        Integer finalPosInc, boolean[] keywordAtts, boolean offsetsAreCorrect) throws IOException {
    assertNotNull(output);/* w w w.j  a  va  2s .co m*/
    CheckClearAttributesAttribute checkClearAtt = ts.addAttribute(CheckClearAttributesAttribute.class);

    CharTermAttribute termAtt = null;
    if (output.length > 0) {
        assertTrue("has no CharTermAttribute", ts.hasAttribute(CharTermAttribute.class));
        termAtt = ts.getAttribute(CharTermAttribute.class);
    }

    OffsetAttribute offsetAtt = null;
    if (startOffsets != null || endOffsets != null || finalOffset != null) {
        assertTrue("has no OffsetAttribute", ts.hasAttribute(OffsetAttribute.class));
        offsetAtt = ts.getAttribute(OffsetAttribute.class);
    }

    TypeAttribute typeAtt = null;
    if (types != null) {
        assertTrue("has no TypeAttribute", ts.hasAttribute(TypeAttribute.class));
        typeAtt = ts.getAttribute(TypeAttribute.class);
    }

    PositionIncrementAttribute posIncrAtt = null;
    if (posIncrements != null || finalPosInc != null) {
        assertTrue("has no PositionIncrementAttribute", ts.hasAttribute(PositionIncrementAttribute.class));
        posIncrAtt = ts.getAttribute(PositionIncrementAttribute.class);
    }

    PositionLengthAttribute posLengthAtt = null;
    if (posLengths != null) {
        assertTrue("has no PositionLengthAttribute", ts.hasAttribute(PositionLengthAttribute.class));
        posLengthAtt = ts.getAttribute(PositionLengthAttribute.class);
    }

    KeywordAttribute keywordAtt = null;
    if (keywordAtts != null) {
        assertTrue("has no KeywordAttribute", ts.hasAttribute(KeywordAttribute.class));
        keywordAtt = ts.getAttribute(KeywordAttribute.class);
    }

    // Maps position to the start/end offset:
    final Map<Integer, Integer> posToStartOffset = new HashMap<>();
    final Map<Integer, Integer> posToEndOffset = new HashMap<>();

    ts.reset();
    int pos = -1;
    int lastStartOffset = 0;
    for (int i = 0; i < output.length; i++) {
        // extra safety to enforce, that the state is not preserved and also
        // assign bogus values
        ts.clearAttributes();
        termAtt.setEmpty().append("bogusTerm");
        if (offsetAtt != null)
            offsetAtt.setOffset(14584724, 24683243);
        if (typeAtt != null)
            typeAtt.setType("bogusType");
        if (posIncrAtt != null)
            posIncrAtt.setPositionIncrement(45987657);
        if (posLengthAtt != null)
            posLengthAtt.setPositionLength(45987653);
        if (keywordAtt != null)
            keywordAtt.setKeyword((i & 1) == 0);

        checkClearAtt.getAndResetClearCalled(); // reset it, because we
        // called clearAttribute()
        // before
        assertTrue("token " + i + " does not exist", ts.incrementToken());
        assertTrue("clearAttributes() was not called correctly in TokenStream chain",
                checkClearAtt.getAndResetClearCalled());

        assertEquals("term " + i, output[i], termAtt.toString());
        if (startOffsets != null) {
            assertEquals("startOffset " + i, startOffsets[i], offsetAtt.startOffset());
        }
        if (endOffsets != null) {
            assertEquals("endOffset " + i, endOffsets[i], offsetAtt.endOffset());
        }
        if (types != null) {
            assertEquals("type " + i, types[i], typeAtt.type());
        }
        if (posIncrements != null) {
            assertEquals("posIncrement " + i, posIncrements[i], posIncrAtt.getPositionIncrement());
        }
        if (posLengths != null) {
            assertEquals("posLength " + i, posLengths[i], posLengthAtt.getPositionLength());
        }
        if (keywordAtts != null) {
            assertEquals("keywordAtt " + i, keywordAtts[i], keywordAtt.isKeyword());
        }

        // we can enforce some basic things about a few attributes even if
        // the caller doesn't check:
        if (offsetAtt != null) {
            final int startOffset = offsetAtt.startOffset();
            final int endOffset = offsetAtt.endOffset();
            if (finalOffset != null) {
                assertTrue("startOffset must be <= finalOffset", startOffset <= finalOffset.intValue());
                assertTrue("endOffset must be <= finalOffset: got endOffset=" + endOffset + " vs finalOffset="
                        + finalOffset.intValue(), endOffset <= finalOffset.intValue());
            }

            if (offsetsAreCorrect) {
                assertTrue("offsets must not go backwards startOffset=" + startOffset + " is < lastStartOffset="
                        + lastStartOffset, offsetAtt.startOffset() >= lastStartOffset);
                lastStartOffset = offsetAtt.startOffset();
            }

            if (offsetsAreCorrect && posLengthAtt != null && posIncrAtt != null) {
                // Validate offset consistency in the graph, ie
                // all tokens leaving from a certain pos have the
                // same startOffset, and all tokens arriving to a
                // certain pos have the same endOffset:
                final int posInc = posIncrAtt.getPositionIncrement();
                pos += posInc;

                final int posLength = posLengthAtt.getPositionLength();

                if (!posToStartOffset.containsKey(pos)) {
                    // First time we've seen a token leaving from this
                    // position:
                    posToStartOffset.put(pos, startOffset);
                    // System.out.println("  + s " + pos + " -> " +
                    // startOffset);
                } else {
                    // We've seen a token leaving from this position
                    // before; verify the startOffset is the same:
                    // System.out.println("  + vs " + pos + " -> " +
                    // startOffset);
                    assertEquals("pos=" + pos + " posLen=" + posLength + " token=" + termAtt,
                            posToStartOffset.get(pos).intValue(), startOffset);
                }

                final int endPos = pos + posLength;

                if (!posToEndOffset.containsKey(endPos)) {
                    // First time we've seen a token arriving to this
                    // position:
                    posToEndOffset.put(endPos, endOffset);
                    // System.out.println("  + e " + endPos + " -> " +
                    // endOffset);
                } else {
                    // We've seen a token arriving to this position
                    // before; verify the endOffset is the same:
                    // System.out.println("  + ve " + endPos + " -> " +
                    // endOffset);
                    assertEquals("pos=" + pos + " posLen=" + posLength + " token=" + termAtt,
                            posToEndOffset.get(endPos).intValue(), endOffset);
                }
            }
        }
        if (posIncrAtt != null) {
            if (i == 0) {
                assertTrue("first posIncrement must be >= 1", posIncrAtt.getPositionIncrement() >= 1);
            } else {
                assertTrue("posIncrement must be >= 0", posIncrAtt.getPositionIncrement() >= 0);
            }
        }
        if (posLengthAtt != null) {
            assertTrue("posLength must be >= 1", posLengthAtt.getPositionLength() >= 1);
        }
    }

    if (ts.incrementToken()) {
        fail("TokenStream has more tokens than expected (expected count=" + output.length + "); extra token="
                + termAtt.toString());
    }

    // repeat our extra safety checks for end()
    ts.clearAttributes();
    if (termAtt != null)
        termAtt.setEmpty().append("bogusTerm");
    if (offsetAtt != null)
        offsetAtt.setOffset(14584724, 24683243);
    if (typeAtt != null)
        typeAtt.setType("bogusType");
    if (posIncrAtt != null)
        posIncrAtt.setPositionIncrement(45987657);
    if (posLengthAtt != null)
        posLengthAtt.setPositionLength(45987653);

    checkClearAtt.getAndResetClearCalled(); // reset it, because we called
    // clearAttribute() before

    ts.end();
    assertTrue("super.end()/clearAttributes() was not called correctly in end()",
            checkClearAtt.getAndResetClearCalled());

    if (finalOffset != null) {
        assertEquals("finalOffset", finalOffset.intValue(), offsetAtt.endOffset());
    }
    if (offsetAtt != null) {
        assertTrue("finalOffset must be >= 0", offsetAtt.endOffset() >= 0);
    }
    if (finalPosInc != null) {
        assertEquals("finalPosInc", finalPosInc.intValue(), posIncrAtt.getPositionIncrement());
    }

    ts.close();
}