| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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 org.apache.opennlp.corpus_server.impl; |
| |
| import java.io.File; |
| import java.io.IOException; |
| import java.io.InputStream; |
| |
| import javax.xml.parsers.ParserConfigurationException; |
| import javax.xml.parsers.SAXParser; |
| import javax.xml.parsers.SAXParserFactory; |
| |
| import org.apache.uima.ResourceSpecifierFactory; |
| import org.apache.uima.UIMAFramework; |
| import org.apache.uima.cas.CAS; |
| import org.apache.uima.cas.impl.XmiCasDeserializer; |
| import org.apache.uima.resource.ResourceInitializationException; |
| import org.apache.uima.resource.metadata.FsIndexDescription; |
| import org.apache.uima.resource.metadata.TypePriorities; |
| import org.apache.uima.resource.metadata.TypeSystemDescription; |
| import org.apache.uima.resource.metadata.impl.FsIndexDescription_impl; |
| import org.apache.uima.util.CasCreationUtils; |
| import org.apache.uima.util.InvalidXMLException; |
| import org.apache.uima.util.XMLInputSource; |
| import org.apache.uima.util.XMLParser; |
| import org.xml.sax.SAXException; |
| |
| public class UimaUtil { |
| |
| public static TypeSystemDescription createTypeSystemDescription(InputStream in) { |
| |
| // Note: |
| // Type System location is not set correctly, |
| // resolving a referenced type system will fail |
| |
| XMLInputSource xmlTypeSystemSource = new XMLInputSource(in, new File("")); |
| |
| XMLParser xmlParser = UIMAFramework.getXMLParser(); |
| |
| TypeSystemDescription typeSystemDesciptor; |
| |
| try { |
| typeSystemDesciptor = (TypeSystemDescription) xmlParser |
| .parse(xmlTypeSystemSource); |
| |
| typeSystemDesciptor.resolveImports(); |
| } catch (InvalidXMLException e) { |
| e.printStackTrace(); |
| typeSystemDesciptor = null; |
| } |
| |
| return typeSystemDesciptor; |
| } |
| |
| public static CAS createEmptyCAS(TypeSystemDescription typeSystem) { |
| ResourceSpecifierFactory resourceSpecifierFactory = UIMAFramework |
| .getResourceSpecifierFactory(); |
| TypePriorities typePriorities = resourceSpecifierFactory |
| .createTypePriorities(); |
| |
| FsIndexDescription indexDesciptor = new FsIndexDescription_impl(); |
| indexDesciptor.setLabel("TOPIndex"); |
| indexDesciptor.setTypeName("uima.cas.TOP"); |
| indexDesciptor.setKind(FsIndexDescription.KIND_SORTED); |
| |
| CAS cas; |
| try { |
| cas = CasCreationUtils.createCas(typeSystem, typePriorities, |
| new FsIndexDescription[] { indexDesciptor }); |
| } catch (ResourceInitializationException e) { |
| e.printStackTrace(); |
| cas = null; |
| } |
| |
| return cas; |
| } |
| |
| public static void deserializeXmiCAS(CAS cas, InputStream xmiIn) throws IOException { |
| |
| SAXParserFactory saxParserFactory = SAXParserFactory.newInstance(); |
| saxParserFactory.setValidating(false); |
| |
| SAXParser saxParser; |
| |
| try { |
| saxParser = saxParserFactory.newSAXParser(); |
| } catch (ParserConfigurationException e) { |
| throw new IllegalStateException( |
| "SAXParser should be configured correctly!", e); |
| } catch (SAXException e) { |
| throw new IllegalStateException("SAX error while creating parser!", e); |
| } |
| |
| XmiCasDeserializer dezerializer = new XmiCasDeserializer( |
| cas.getTypeSystem()); |
| |
| try { |
| saxParser.parse(xmiIn, dezerializer.getXmiCasHandler(cas)); |
| } catch (SAXException e) { |
| throw new IOException("Invalid XMI input!", e); |
| } |
| } |
| } |