/*
* Copyright 2016
* Ubiquitous Knowledge Processing (UKP) Lab
* 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 org.dkpro.core.io.xces;
import static org.apache.commons.io.IOUtils.closeQuietly;
import java.io.OutputStream;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import javax.xml.bind.JAXBContext;
import javax.xml.bind.JAXBElement;
import javax.xml.bind.Marshaller;
import javax.xml.namespace.QName;
import javax.xml.stream.XMLEventFactory;
import javax.xml.stream.XMLEventWriter;
import javax.xml.stream.XMLOutputFactory;
import org.apache.uima.analysis_engine.AnalysisEngineProcessException;
import org.apache.uima.fit.descriptor.ConfigurationParameter;
import org.apache.uima.fit.descriptor.TypeCapability;
import org.apache.uima.fit.util.JCasUtil;
import org.apache.uima.jcas.JCas;
import org.dkpro.core.io.xces.models.XcesBodyBasic;
import org.dkpro.core.io.xces.models.XcesParaBasic;
import de.tudarmstadt.ukp.dkpro.core.api.io.JCasFileWriter_ImplBase;
import de.tudarmstadt.ukp.dkpro.core.api.segmentation.type.Paragraph;
import javanet.staxutils.IndentingXMLEventWriter;
@TypeCapability(
inputs = {
"de.tudarmstadt.ukp.dkpro.core.api.segmentation.type.Paragraph" })
public class XcesBasicXmlWriter extends JCasFileWriter_ImplBase
{
public static final String PARAM_FILENAME_SUFFIX = "filenameSuffix";
@ConfigurationParameter(name = PARAM_FILENAME_SUFFIX, mandatory = true, defaultValue = ".xml")
private String filenameSuffix;
@Override
public void process(JCas aJCas)
throws AnalysisEngineProcessException
{
OutputStream docOS = null;
try {
docOS = getOutputStream(aJCas, filenameSuffix);
XMLOutputFactory xmlOutputFactory = XMLOutputFactory.newInstance();
XMLEventWriter xmlEventWriter = new IndentingXMLEventWriter(
xmlOutputFactory.createXMLEventWriter(docOS));
JAXBContext context = JAXBContext.newInstance(XcesBodyBasic.class);
Marshaller marshaller = context.createMarshaller();
marshaller.setProperty(Marshaller.JAXB_FRAGMENT, Boolean.TRUE);
XMLEventFactory xmlef = XMLEventFactory.newInstance();
xmlEventWriter.add(xmlef.createStartDocument());
// Begin cesDoc
xmlEventWriter.add(xmlef.createStartElement("", "", "cesDoc"));
// Begin and End cesHeader
xmlEventWriter.add(xmlef.createStartElement("", "", "cesHeader"));
xmlEventWriter.add(xmlef.createEndElement("", "", "cesHeader"));
// Begin text and body
xmlEventWriter.add(xmlef.createStartElement("", "", "text"));
// xmlEventWriter.add(xmlef.createStartElement("", "", "body"));
// Begin body of all the paragraphs
Collection<Paragraph> parasInCas = JCasUtil.select(aJCas, Paragraph.class);
XcesBodyBasic xb = convertToXcesBasicPara(parasInCas);
marshaller.marshal(new JAXBElement<XcesBodyBasic>(new QName("body"), XcesBodyBasic.class, xb),
xmlEventWriter);
// End body of all the paragraphs
// xmlEventWriter.add(xmlef.createEndElement("", "", "body"));
xmlEventWriter.add(xmlef.createEndElement("", "", "text"));
xmlEventWriter.add(xmlef.createEndElement("", "", "cesDoc"));
xmlEventWriter.add(xmlef.createEndDocument());
}
catch (Exception e) {
throw new AnalysisEngineProcessException(e);
}
finally {
closeQuietly(docOS);
}
}
private XcesBodyBasic convertToXcesBasicPara(Collection<Paragraph> parasInCas)
{
int paraNo = 1;
XcesBodyBasic xb = new XcesBodyBasic();
List<XcesParaBasic> paraList = new ArrayList<XcesParaBasic>();
for (Paragraph p : parasInCas) {
XcesParaBasic para = new XcesParaBasic();
para.s = p.getCoveredText();
para.id= "p"+Integer.toString(paraNo);
paraList.add(para);
paraNo++;
}
xb.p = paraList;
return xb;
}
}