/*
* 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.caseditor.core.model;
import java.io.File;
import java.io.InputStream;
import org.apache.uima.ResourceSpecifierFactory;
import org.apache.uima.UIMAFramework;
import org.apache.uima.cas.CAS;
import org.apache.uima.cas.TypeSystem;
import org.apache.uima.caseditor.CasEditorPlugin;
import org.apache.uima.caseditor.core.model.delta.INlpElementDelta;
import org.apache.uima.caseditor.core.util.MarkerUtil;
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.eclipse.core.resources.IFile;
import org.eclipse.core.resources.IResource;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Status;
/**
* TODO: add javadoc
*/
public class TypesystemElement extends AbstractNlpElement {
private IFile mTypesytemFile;
private NlpProject mProject;
TypesystemElement(IFile resource, NlpProject parent) {
mTypesytemFile = resource;
mProject = parent;
getCAS();
}
public TypeSystem getTypeSystem() {
CAS cas = getCAS();
if (cas != null) {
return cas.getTypeSystem();
}
return null;
}
/**
* Retrieves the {@link CAS}.
*
* @return the {@link CAS} or null if there is an error in the type system.
*/
public CAS getCAS() {
Runnable clearMarkers = new Runnable() {
public void run() {
try {
MarkerUtil.clearMarkers(mTypesytemFile, MarkerUtil.PROBLEM_MARKER);
} catch (CoreException e) {
CasEditorPlugin.log(e);
}
}
};
((NlpModel) mProject.getParent()).asyncExcuteQueue(clearMarkers);
try {
return getCASInternal();
} catch (final CoreException e) {
Runnable createMarker = new Runnable() {
public void run() {
try {
MarkerUtil.createMarker(mTypesytemFile, e.getMessage());
} catch (CoreException e2) {
CasEditorPlugin.log(e2);
}
}
};
((NlpModel) mProject.getParent()).asyncExcuteQueue(createMarker);
return null;
}
}
private CAS getCASInternal() throws CoreException {
ResourceSpecifierFactory resourceSpecifierFactory = UIMAFramework.getResourceSpecifierFactory();
IFile extensionTypeSystemFile = mTypesytemFile;
InputStream inTypeSystem;
if (extensionTypeSystemFile != null && extensionTypeSystemFile.exists()) {
inTypeSystem = extensionTypeSystemFile.getContents();
} else {
return null;
}
XMLInputSource xmlTypeSystemSource = new XMLInputSource(inTypeSystem, new File(""));
XMLParser xmlParser = UIMAFramework.getXMLParser();
TypeSystemDescription typeSystemDesciptor;
try {
typeSystemDesciptor = (TypeSystemDescription) xmlParser.parse(xmlTypeSystemSource);
typeSystemDesciptor.resolveImports();
} catch (InvalidXMLException e) {
String message = e.getMessage() != null ? e.getMessage() : "";
IStatus s = new Status(IStatus.ERROR, CasEditorPlugin.ID, IStatus.OK, message, e);
throw new CoreException(s);
}
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(typeSystemDesciptor, typePriorities,
new FsIndexDescription[] { indexDesciptor });
} catch (ResourceInitializationException e) {
String message = e.getMessage() != null ? e.getMessage() : "";
IStatus s = new Status(IStatus.ERROR, CasEditorPlugin.ID, IStatus.OK, message, e);
throw new CoreException(s);
}
return cas;
}
/**
* Retrieves the name.
*/
public String getName() {
return "Typesystem";
}
/**
* Retrieves the nlp project.
*/
public NlpProject getNlpProject() {
return mProject;
}
/**
* Retrieves the parent.
*/
public INlpElement getParent() {
return mProject;
}
/**
* Retrieves the resource.
*/
public IResource getResource() {
return mTypesytemFile;
}
@Override
void changedResource(IResource resource, INlpElementDelta delta) throws CoreException {
getCAS();
}
@Override
void addResource(INlpElementDelta delta, IResource resource) throws CoreException {
// not needed here, there are no child resources
}
@Override
void removeResource(INlpElementDelta delta, IResource resource) throws CoreException {
// not needed here, there are no child resources
}
}