/* * Copyright 2018 * Ubiquitous Knowledge Processing (UKP) Lab and FG Language Technology * Technische Universität Darmstadt * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package de.tudarmstadt.ukp.inception.ui.kb.value; import java.util.ArrayList; import java.util.Collections; import java.util.HashMap; import java.util.List; import java.util.Map; import org.apache.commons.lang3.ClassUtils; import org.cyberborean.rdfbeans.datatype.DefaultDatatypeMapper; import org.eclipse.rdf4j.model.IRI; import org.eclipse.rdf4j.model.vocabulary.XMLSchema; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.context.annotation.Lazy; import org.springframework.context.event.ContextRefreshedEvent; import org.springframework.context.event.EventListener; import org.springframework.core.annotation.AnnotationAwareOrderComparator; import de.tudarmstadt.ukp.inception.kb.graph.KBProperty; import de.tudarmstadt.ukp.inception.kb.graph.KBStatement; import de.tudarmstadt.ukp.inception.ui.kb.config.KnowledgeBaseServiceUIAutoConfiguration; /** * <p> * This class is exposed as a Spring Component via * {@link KnowledgeBaseServiceUIAutoConfiguration#valueTypeSupportRegistry}. * </p> */ public class ValueTypeSupportRegistryImpl implements ValueTypeSupportRegistry { private final Logger log = LoggerFactory.getLogger(getClass()); private final List<ValueTypeSupport> valueSupportsProxy; private List<ValueTypeSupport> valueSupports; private final Map<String, ValueTypeSupport> supportCache = new HashMap<>(); public ValueTypeSupportRegistryImpl( @Lazy @Autowired(required = false) List<ValueTypeSupport> aValueTypeSupports) { valueSupportsProxy = aValueTypeSupports; } @EventListener public void onContextRefreshedEvent(ContextRefreshedEvent aEvent) { init(); } public void init() { List<ValueTypeSupport> fsp = new ArrayList<>(); if (valueSupportsProxy != null) { fsp.addAll(valueSupportsProxy); AnnotationAwareOrderComparator.sort(fsp); for (ValueTypeSupport fs : fsp) { log.info("Found value type support: {}", ClassUtils.getAbbreviatedName(fs.getClass(), 20)); } } valueSupports = Collections.unmodifiableList(fsp); } @Override public ValueType getValueType(KBStatement aStatement, KBProperty aProperty) { try { return getValueSupport(aStatement, aProperty).getSupportedValueTypes().stream() .findFirst().orElse(null); } catch (IllegalArgumentException e) { return null; } } @Override public List<ValueTypeSupport> getValueSupports() { return valueSupports; } private String getDataType(KBStatement aStatement, KBProperty aProperty) { String datatype = null; if (aStatement.getValue() != null) { Class<?> clazz = aStatement.getValue().getClass(); IRI type = DefaultDatatypeMapper.getDatatypeURI(clazz); // Mapping fails for NaiveIRI class, so check manually // if the value is an instance of IRI if (type == null && aStatement.getValue() instanceof IRI) { type = XMLSchema.ANYURI; } datatype = type != null ? type.stringValue() : null; } if (datatype == null && aProperty != null && aProperty.getRange() != null) { return aProperty.getRange(); } if (datatype == null) { datatype = XMLSchema.STRING.stringValue(); } return datatype; } @Override public ValueTypeSupport getValueSupport(KBStatement aStatement, KBProperty aProperty) { // Determine the data type String datatype = getDataType(aStatement, aProperty); String range = null;; if (aProperty != null) { range = aProperty.getRange(); } ValueTypeSupport support = supportCache.get(datatype); for (ValueTypeSupport s : getValueSupports()) { if (s.accepts(aStatement, aProperty) || s.accepts(range, null)) { support = s; supportCache.put(datatype, s); break; } } if (support == null) { throw new IllegalArgumentException("Unsupported value type: [" + datatype + "]"); } return support; } @Override public ValueTypeSupport getValueSupport(ValueType type) { ValueTypeSupport support = null; for (ValueTypeSupport s : getValueSupports()) { if (s.getSupportedValueTypes().contains(type)) { support = s; break; } } if (support == null) { throw new IllegalArgumentException( "Unsupported value type: [" + type.getUiName() + "]"); } return support; } }