| /* |
| * 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.uima.fit.factory.testCrs; |
| |
| import static org.uimafit.factory.ConfigurationParameterFactory.createConfigurationParameterName; |
| |
| import java.io.File; |
| import java.io.FileInputStream; |
| import java.io.IOException; |
| |
| import org.apache.uima.UimaContext; |
| import org.apache.uima.cas.CAS; |
| import org.apache.uima.cas.impl.XCASDeserializer; |
| import org.apache.uima.cas.impl.XmiCasDeserializer; |
| import org.apache.uima.collection.CollectionException; |
| import org.apache.uima.fit.component.CasCollectionReader_ImplBase; |
| import org.apache.uima.resource.ResourceInitializationException; |
| import org.apache.uima.util.Progress; |
| import org.apache.uima.util.ProgressImpl; |
| import org.uimafit.descriptor.ConfigurationParameter; |
| import org.xml.sax.SAXException; |
| |
| |
| /** |
| * <br> |
| * |
| * This collection reader allows one to read in a single XMI or XCAS file. It's primary purpose is |
| * to help out a couple JCasFactory create methods. However, it is also used for this project unit |
| * tests as an example collection reader. |
| * |
| */ |
| |
| public class SingleFileXReader extends CasCollectionReader_ImplBase { |
| |
| public static final String PARAM_FILE_NAME = createConfigurationParameterName( |
| SingleFileXReader.class, "fileName"); |
| |
| @ConfigurationParameter(mandatory = true, description = "takes the name of a single xmi or xcas file to be processed.") |
| private String fileName; |
| |
| public static final String XMI = "XMI"; |
| |
| public static final String XCAS = "XCAS"; |
| |
| public static final String PARAM_XML_SCHEME = createConfigurationParameterName( |
| SingleFileXReader.class, "xmlScheme"); |
| |
| @ConfigurationParameter(mandatory = true, description = "specifies the UIMA XML serialization scheme that should be usedValid values for this parameter are 'XMI' and 'XCAS'. See XmiCasSerializer or XCASSerializer", defaultValue = XMI) |
| private String xmlScheme; |
| |
| private boolean useXMI = true; |
| |
| private boolean hasNext = true; |
| |
| private File file; |
| |
| @Override |
| public void initialize(UimaContext context) throws ResourceInitializationException { |
| super.initialize(context); |
| |
| file = new File(fileName); |
| |
| if (xmlScheme.equals(XMI)) { |
| useXMI = true; |
| } else if (xmlScheme.equals(XCAS)) { |
| useXMI = false; |
| } else { |
| throw new ResourceInitializationException(String.format( |
| "parameter '%1$s' must be either '%2$s' or '%3$s' or left empty.", PARAM_XML_SCHEME, |
| XMI, XCAS), null); |
| } |
| |
| } |
| |
| public void getNext(CAS cas) throws IOException, CollectionException { |
| |
| FileInputStream inputStream = new FileInputStream(file); |
| |
| try { |
| if (useXMI) { |
| XmiCasDeserializer.deserialize(inputStream, cas); |
| } else { |
| XCASDeserializer.deserialize(inputStream, cas); |
| } |
| } catch (SAXException e) { |
| throw new CollectionException(e); |
| } finally { |
| inputStream.close(); |
| } |
| |
| inputStream.close(); |
| hasNext = false; |
| } |
| |
| @Override |
| public void close() throws IOException { |
| // do nothing |
| } |
| |
| public Progress[] getProgress() { |
| if (hasNext) { |
| return new Progress[] { new ProgressImpl(0, 1, Progress.ENTITIES) }; |
| } |
| return new Progress[] { new ProgressImpl(1, 1, Progress.ENTITIES) }; |
| } |
| |
| public boolean hasNext() throws IOException, CollectionException { |
| return hasNext; |
| } |
| |
| } |