/*
* 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.ruta.example.extensions;
import java.util.ArrayList;
import java.util.List;
import org.apache.uima.ruta.RutaElement;
import org.apache.uima.ruta.action.AbstractRutaAction;
import org.apache.uima.ruta.expression.RutaExpression;
import org.apache.uima.ruta.expression.number.NumberExpression;
import org.apache.uima.ruta.extensions.IRutaActionExtension;
import org.apache.uima.ruta.verbalize.RutaVerbalizer;
import antlr.ANTLRException;
public class ExampleActionExtension implements IRutaActionExtension {
private final String[] knownExtensions = new String[] { "ExampleAction" };
private final Class<?>[] extensions = new Class[] { ExampleAction.class };
public String verbalize(RutaElement element, RutaVerbalizer verbalizer) {
if (element instanceof ExampleAction) {
return verbalizeName(element) + "("
+ verbalizer.verbalizeExpressionList(((ExampleAction) element).getIndexExprList()) + ")";
} else {
return "UnknownAction";
}
}
public AbstractRutaAction createAction(String name, List<RutaExpression> args)
throws ANTLRException {
List<NumberExpression> arguments = new ArrayList<NumberExpression>();
if (args != null) {
for (RutaExpression each : args) {
if (each instanceof NumberExpression) {
arguments.add((NumberExpression) each);
} else {
throw new ANTLRException("ExampleAction accepts only NumberExpressions as arguments");
}
}
}
return new ExampleAction(arguments);
}
public String verbalizeName(RutaElement element) {
return knownExtensions[0];
}
public String[] getKnownExtensions() {
return knownExtensions;
}
public Class<?>[] extensions() {
return extensions;
}
}