/*******************************************************************************
* Copyright 2015-2016 - CNRS (Centre National de Recherche Scientifique)
*
* 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
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*******************************************************************************/
package eu.project.ttc.resources;
import org.apache.uima.resource.DataResource;
import org.apache.uima.resource.ResourceInitializationException;
import org.apache.uima.resource.SharedResourceObject;
/**
*
* A thread-safe mate engine.
*
* The Mate engine is considered as a UIMA resource, since the only way
* to load resources in Mate is to create an instance of the engine with
* its model given as a constructor parameter.
*
* @author Damien Cram
*
*/
public abstract class MateModel<T> implements SharedResourceObject {
public ThreadLocal<T> mateEngine = new ThreadLocal<T>();
@Override
public void load(DataResource aData) throws ResourceInitializationException {
String url = aData.getUri().toString().replaceFirst("file:", "");
if(mateEngine.get() == null) {
mateEngine.set(instanciate(url));
}
}
protected abstract T instanciate(String url);
public T getEngine() {
return mateEngine.get();
}
}