/*
* 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 de.tudarmstadt.ukp.dkpro.core.io.gate;
import java.io.OutputStream;
import org.apache.uima.UimaContext;
import org.apache.uima.analysis_engine.AnalysisEngineProcessException;
import org.apache.uima.fit.descriptor.ConfigurationParameter;
import org.apache.uima.fit.descriptor.MimeTypeCapability;
import org.apache.uima.fit.descriptor.TypeCapability;
import org.apache.uima.jcas.JCas;
import org.apache.uima.resource.ResourceInitializationException;
import de.tudarmstadt.ukp.dkpro.core.api.io.JCasFileWriter_ImplBase;
import de.tudarmstadt.ukp.dkpro.core.api.parameter.ComponentParameters;
import de.tudarmstadt.ukp.dkpro.core.api.parameter.MimeTypes;
import de.tudarmstadt.ukp.dkpro.core.io.gate.internal.DKPro2Gate;
import gate.Document;
import gate.DocumentExporter;
import gate.corpora.DocumentImpl;
import gate.corpora.export.GateXMLExporter;
import gate.util.GateException;
@MimeTypeCapability({MimeTypes.APPLICATION_X_GATE_XML})
@TypeCapability(
inputs = {
"de.tudarmstadt.ukp.dkpro.core.api.metadata.type.DocumentMetaData"})
public class GateXmlWriter
extends JCasFileWriter_ImplBase
{
/**
* Specify the suffix of output files. Default value <code>.xml</code>. If the suffix is not
* needed, provide an empty string as value.
*/
public static final String PARAM_FILENAME_EXTENSION = ComponentParameters.PARAM_FILENAME_EXTENSION;
@ConfigurationParameter(name = PARAM_FILENAME_EXTENSION, mandatory = true, defaultValue = ".xml")
private String filenameSuffix;
/**
* Annotation set name
*/
public static final String PARAM_ANNOTATION_SET_NAME = "annotationSetName";
@ConfigurationParameter(name = PARAM_ANNOTATION_SET_NAME, mandatory = false)
private String annotationSetName;
private DocumentExporter exporter;
private DKPro2Gate converter;
@Override
public void initialize(UimaContext aContext)
throws ResourceInitializationException
{
super.initialize(aContext);
exporter = new GateXMLExporter();
converter = new DKPro2Gate();
}
@Override
public void process(JCas aJCas)
throws AnalysisEngineProcessException
{
Document document;
try {
document = new DocumentImpl();
if (annotationSetName != null && annotationSetName.length() > 0) {
converter.convert(aJCas, document, annotationSetName);
}
else {
converter.convert(aJCas, document);
}
}
catch (GateException e) {
throw new AnalysisEngineProcessException(e);
}
try (OutputStream docOS = getOutputStream(aJCas, filenameSuffix)) {
exporter.export(document, docOS);
}
catch (Exception e) {
throw new AnalysisEngineProcessException(e);
}
}
}