Java Document.getFields方法代碼示例

import org.apache.lucene.document.Document; //導入方法依賴的package包/類
private void verifyIndexedFieldsForProduct(long productKey) {
    ProductClassBridge bridge = new ProductClassBridge();
    Document doc = new Document();

    Product product = mgr.find(Product.class, productKey);
    bridge.set("name", product, doc, mockLuceneOptions());
    Assert.assertNotNull("Indexed fields expected", doc.getFields());
    Properties fields = new Properties();
    for (Object o : doc.getFields()) {
        Assert.assertTrue("Field is not actually a field object",
                o instanceof Field);
        Field field = (Field) o;
        Assert.assertNotNull("Field has no name", field.name());
        Assert.assertNotNull("Field " + field.name() + " has no value",
                field.stringValue());
        fields.put(field.name(), field.stringValue());
    }
    for (Object key : expectedFields.keySet()) {
        Assert.assertTrue("Field " + key + " expected",
                fields.containsKey(key));
        Assert.assertEquals("Wrong value for field " + key,
                expectedFields.get(key), fields.get(key));
    }

}
 

import org.apache.lucene.document.Document; //導入方法依賴的package包/類
@Override
public Token getToken(int index) {
    Token ret = cachedTokens.get(index);
    if (ret == null) {
        ret = new Token();
        try {
            Document doc = tokenSearcher.doc(index);
            for (IndexableField f : doc.getFields())
                if (!f.name().startsWith("GGS:"))
                    ret.getFeatures().put(f.name(), f.stringValue());
                else if (f.name().equals("GGS:SpanAnnotation"))
                    ret.parentAnnotations.add(getAnnotation(f.numericValue().intValue()));
                else if (f.name().equals("GGS:Sentence"))
                    ret.parentSentence = getSentence(f.numericValue().intValue());
            ret.indexInSentence = index - ret.parentSentence.getFirstTokenIndexInCorpus();
        } catch (IOException e) {
            e.printStackTrace();
        }
        cachedTokens.put(index, ret);
    }
    return ret;
}
 

import org.apache.lucene.document.Document; //導入方法依賴的package包/類
SpanAnnotation getAnnotation(int i) {
    SpanAnnotation ret = cachedAnnotations.get(i);
    if (ret == null) {
        ret = new SpanAnnotation();
        try {
            Document doc = annotationSearcher.doc(i);
            ret.setSentence(this.getSentence(tokenSearcher.doc(doc.getField("GGS:StartTokenIndex").numericValue().intValue()).getField("GGS:Sentence").numericValue().intValue()));
            ret.setName(doc.get("GGS:Name"));
            for (IndexableField f : doc.getFields())
                if (!f.name().startsWith("GGS:"))
                    ret.getFeatures().put(f.name(), f.stringValue());
                else if (f.name().equals("GGS:StartTokenIndex"))
                    ret.setStartTokenIndex(f.numericValue().intValue());
                else if (f.name().equals("GGS:EndTokenIndex"))
                    ret.setEndTokenIndex(f.numericValue().intValue());
        } catch (IOException e) {
            e.printStackTrace();
        }
        cachedAnnotations.put(i, ret);
    }
    return ret;
}
 

import org.apache.lucene.document.Document; //導入方法依賴的package包/類
/**
 * Find words for a more-like-this query former.
 *
 * @param docNum the id of the lucene document from which to find terms
 */
private PriorityQueue<ScoreTerm> retrieveTerms(int docNum) throws IOException {
    Map<String, Int> termFreqMap = new HashMap<>();
    for (String fieldName : fieldNames) {
        final Fields vectors = ir.getTermVectors(docNum);
        final Terms vector;
        if (vectors != null) {
            vector = vectors.terms(fieldName);
        } else {
            vector = null;
        }

        // field does not store term vector info
        if (vector == null) {
            Document d = ir.document(docNum);
            IndexableField fields[] = d.getFields(fieldName);
            for (IndexableField field : fields) {
                final String stringValue = field.stringValue();
                if (stringValue != null) {
                    addTermFrequencies(new FastStringReader(stringValue), termFreqMap, fieldName);
                }
            }
        } else {
            addTermFrequencies(termFreqMap, vector, fieldName);
        }
    }

    return createQueue(termFreqMap);
}
 

import org.apache.lucene.document.Document; //導入方法依賴的package包/類
private void addFreqs(Document doc, Map<String, FreqHolder> reference) {
    Set<String> addedDocFreq = new HashSet<>();
    for (IndexableField field : doc.getFields("field")) {
        String term = field.stringValue();
        FreqHolder freqHolder = reference.get(term);
        if (!addedDocFreq.contains(term)) {
            freqHolder.docFreq++;
            addedDocFreq.add(term);
        }
        freqHolder.totalTermFreq++;
    }
}
 

import org.apache.lucene.document.Document; //導入方法依賴的package包/類
public List<Field> get(int n, FieldSelector fieldSelector) throws IOException
{
    Document document = ReferenceCountingReadOnlyIndexReader.super.document(n, fieldSelector);
    List<Field> fields = (List<Field>) document.getFields();
    ArrayList<Field> cacheable = new ArrayList<Field>(fields.size());
    cacheable.addAll(fields);
    return cacheable;
}
 

import org.apache.lucene.document.Document; //導入方法依賴的package包/類
public String getPathLinkId(int n) throws IOException
{
    Document document = document(n, new SingleFieldSelector("ID", true));
    Field[] fields = document.getFields("ID");
    Field field = fields[fields.length - 1];
    return (field == null) ? null : field.stringValue();
}
 

import org.apache.lucene.document.Document; //導入方法依賴的package包/類
public void detectNodeChanges(NodeRef nodeRef, SearchService searcher,
        Collection<ChildAssociationRef> addedParents, Collection<ChildAssociationRef> deletedParents,
        Collection<ChildAssociationRef> createdNodes, Collection<NodeRef> updatedNodes) throws LuceneIndexException
{
    boolean nodeExisted = false;
    boolean relationshipsChanged = false;
    
    ResultSet results = null;
    SearchParameters sp = new SearchParameters();
    sp.setLanguage(SearchService.LANGUAGE_LUCENE);
    sp.addStore(nodeRef.getStoreRef());
    try
    {
        sp.setQuery("ID:" + SearchLanguageConversion.escapeLuceneQuery(nodeRef.toString()));
        results = searcher.query(sp);
        for (ResultSetRow row : results)
        {
            nodeExisted = true;
            Document document = ((LuceneResultSetRow) row).getDocument();
            Field qname = document.getField("QNAME");
            if (qname == null)
            {
                continue;
            }
            Collection<Pair<ChildAssociationRef, QName>> allParents = getAllParents(nodeRef, nodeService.getProperties(nodeRef));
            Set<ChildAssociationRef> dbParents = new HashSet<ChildAssociationRef>(allParents.size() * 2);
            for (Pair<ChildAssociationRef, QName> pair : allParents)
            {
                ChildAssociationRef qNameRef = tenantService.getName(pair.getFirst());
                if ((qNameRef != null) && (qNameRef.getParentRef() != null) && (qNameRef.getQName() != null))
                {
                    dbParents.add(new ChildAssociationRef(ContentModel.ASSOC_CHILDREN, qNameRef.getParentRef(), qNameRef.getQName(), qNameRef.getChildRef()));
                }
            }
                           
            Field[] parents = document.getFields("PARENT");
            String[] qnames = qname.stringValue().split(";/");
            Set<ChildAssociationRef> addedParentsSet = new HashSet<ChildAssociationRef>(dbParents);
            for (int i=0; i<Math.min(parents.length, qnames.length); i++)
            {
                QName parentQname = QName.createQName(qnames[i]);
                parentQname = QName.createQName(parentQname.getNamespaceURI(), ISO9075.decode(parentQname.getLocalName()));
                NodeRef parentRef = new NodeRef(parents[i].stringValue());
                ChildAssociationRef indexedParent = new ChildAssociationRef(ContentModel.ASSOC_CHILDREN, parentRef, parentQname, nodeRef);
                if (!addedParentsSet.remove(indexedParent))
                {
                    deletedParents.add(indexedParent);                        
                    relationshipsChanged = true;
                }
            }
            if (addedParents.addAll(addedParentsSet))
            {
                relationshipsChanged = true;
            }

            break;
        }

        if (!nodeExisted)
        {
            createdNodes.add(nodeService.getPrimaryParent(nodeRef));
        }
        else if (!relationshipsChanged)
        {
            updatedNodes.add(nodeRef);
        }
    }
    finally
    {
        if (results != null) { results.close(); }
    }
    
}
 

import org.apache.lucene.document.Document; //導入方法依賴的package包/類
/**
 * Find words for a more-queryFromDocuments-this query former.
 *
 * @param docNum the id of the lucene document from which to find terms
 * @param fields the list of field of the lucene document from which to extract terms
 * @param fieldToTermFreqMap data structure to populate with term frequencies
 */
public Map<String, Map<String, Flt>> retrieveTerms(int docNum, String[] fields, Map<String, Map<String, Flt>> fieldToTermFreqMap) throws IOException {

    if(fieldToTermFreqMap == null) {
        fieldToTermFreqMap = new HashMap<String, Map<String, Flt>>();
    }

    if(fields == null || fields.length == 0){
        return fieldToTermFreqMap;
    }

    final Fields vectors = ir.getTermVectors(docNum);
    final Document document = ir.document(docNum);

    for (String fieldName : fields) {

        Map<String, Flt> termFreqMap = null;
        if(fieldToTermFreqMap.containsKey(fieldName)){
            termFreqMap = fieldToTermFreqMap.get(fieldName);
        }
        else{
            termFreqMap = new HashMap<String, Flt>();
            fieldToTermFreqMap.put(fieldName, termFreqMap);
        }

        Terms vector = null;
        if (vectors != null) {
            vector = vectors.terms(fieldName);
        }

        // field does not store term vector info
        // even if term vectors enabled, need to extract payload from regular field reader
        if (vector == null || isPayloadField(fieldName)) {
            IndexableField docFields[] = document.getFields(fieldName);
            for (IndexableField field : docFields) {
                final String stringValue = field.stringValue();
                if (stringValue != null) {
                    addTermWeights(new StringReader(stringValue), termFreqMap, fieldName);
                }
            }
        } else {
            addTermWeights(termFreqMap, vector);
        }
    }

    return fieldToTermFreqMap;
}