Examples with AnalyzerProvider org.neo4j.graphdb.schema.AnalyzerProvider used on opensource projects

Example 1 with AnalyzerProvider

use of org.neo4j.graphdb.schema.AnalyzerProvider in project neo4j by neo4j.

the class FulltextIndexSettings method createAnalyzer.

static Analyzer createAnalyzer(IndexDescriptor descriptor, TokenNameLookup tokenNameLookup) {
    TextValue analyzerName = descriptor.getIndexConfig().get(ANALYZER);
    if (analyzerName == null) {
        throw new RuntimeException("Index has no analyzer configured: " + descriptor.userDescription(tokenNameLookup));
    }
    Analyzer analyzer;
    try {
        AnalyzerProvider analyzerProvider = Services.loadOrFail(AnalyzerProvider.class, analyzerName.stringValue());
        analyzer = analyzerProvider.createAnalyzer();
    } catch (Exception e) {
        throw new RuntimeException("Could not create fulltext analyzer: " + analyzerName, e);
    }
    Objects.requireNonNull(analyzer, "The '" + analyzerName + "' analyzer provider returned a null analyzer.");
    return analyzer;
}

Example 2 with AnalyzerProvider

use of org.neo4j.graphdb.schema.AnalyzerProvider in project neo4j by neo4j.

the class FulltextIndexProvider method validateIndexRef.

private void validateIndexRef(IndexRef<?> ref) {
    String providerName = getProviderDescriptor().name();
    if (ref.getIndexType() != IndexType.FULLTEXT) {
        throw new IllegalArgumentException("The '" + providerName + "' index provider only supports FULLTEXT index types: " + ref);
    }
    if (!ref.schema().isFulltextSchemaDescriptor()) {
        throw new IllegalArgumentException("The " + ref.schema() + " index schema is not a full-text index schema, " + "which it is required to be for the '" + providerName + "' index provider to be able to create an index.");
    }
    Value value = ref.getIndexConfig().get(ANALYZER);
    if (value != null) {
        if (value.valueGroup() == ValueGroup.TEXT) {
            String analyzerName = ((TextValue) value).stringValue();
            Optional<AnalyzerProvider> analyzerProvider = listAvailableAnalyzers().filter(analyzer -> analyzer.getName().equals(analyzerName)).findFirst();
            if (analyzerProvider.isPresent()) {
                // Verify that the analyzer provider works.
                Analyzer analyzer = analyzerProvider.get().createAnalyzer();
                Objects.requireNonNull(analyzer, "The '" + analyzerName + "' analyzer returned a 'null' analyzer.");
            } else {
                throw new IllegalArgumentException("No such full-text analyzer: '" + analyzerName + "'.");
            }
        } else {
            throw new IllegalArgumentException("Wrong index setting value type for fulltext analyzer: '" + value + "'.");
        }
    }
    TokenHolder propertyKeyTokens = tokenHolders.propertyKeyTokens();
    for (int propertyId : ref.schema().getPropertyIds()) {
        try {
            NamedToken token = propertyKeyTokens.getTokenById(propertyId);
            if (token.name().equals(LuceneFulltextDocumentStructure.FIELD_ENTITY_ID)) {
                throw new IllegalArgumentException("Unable to index the property, the name is reserved for internal use " + LuceneFulltextDocumentStructure.FIELD_ENTITY_ID);
            }
        } catch (TokenNotFoundException e) {
            throw new IllegalArgumentException("Schema references non-existing property key token id: " + propertyId + ".", e);
        }
    }
}