/*
* 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.ide.ui.editor;
import java.util.ArrayList;
import java.util.List;
import org.apache.uima.ruta.ide.parser.ast.ActionFactory;
import org.apache.uima.ruta.ide.parser.ast.ComponentDeclaration;
import org.apache.uima.ruta.ide.parser.ast.ComponentReference;
import org.apache.uima.ruta.ide.parser.ast.ConditionFactory;
import org.apache.uima.ruta.ide.parser.ast.RutaAction;
import org.apache.uima.ruta.ide.parser.ast.RutaCondition;
import org.apache.uima.ruta.ide.parser.ast.RutaVariableReference;
import org.eclipse.dltk.ast.ASTNode;
import org.eclipse.dltk.ast.ASTVisitor;
import org.eclipse.dltk.ast.expressions.Expression;
public class ReferenceFinder extends ASTVisitor {
private List<ASTNode> result = new ArrayList<ASTNode>();
private ASTNode node;
public ReferenceFinder(ASTNode node) {
super();
this.node = getRealNode(node);
}
private ASTNode getRealNode(ASTNode node) {
if (node instanceof RutaAction) {
RutaAction a = (RutaAction) node;
if (ActionFactory.IMPLICIT.equals(a.getName()) && !a.getChilds().isEmpty()) {
Expression expression = a.getChilds().get(0);
if (expression != null && !expression.getChilds().isEmpty()) {
return (ASTNode) expression.getChilds().get(0);
}
}
}
if (node instanceof RutaCondition) {
RutaCondition c = (RutaCondition) node;
if (ConditionFactory.IMPLICIT.equals(c.getName()) && !c.getChilds().isEmpty()) {
Expression expression = c.getChilds().get(0);
if (expression != null && !expression.getChilds().isEmpty()) {
return (ASTNode) expression.getChilds().get(0);
}
}
}
return node;
}
@Override
public boolean visit(Expression s) throws Exception {
if (s instanceof RutaVariableReference && node instanceof RutaVariableReference) {
RutaVariableReference vr0 = (RutaVariableReference) node;
RutaVariableReference vr1 = (RutaVariableReference) s;
if (vr1.getStringRepresentation().equals(vr0.getStringRepresentation())
&& vr1.getType() == vr0.getType()) {
result.add(s);
}
} else if (s instanceof ComponentDeclaration && node instanceof ComponentDeclaration) {
} else if (s instanceof ComponentReference && node instanceof ComponentReference) {
ComponentReference cr1 = (ComponentReference) node;
ComponentReference cr2 = (ComponentReference) s;
if (cr1.getName().equals(cr2.getName())) {
result.add(s);
}
} else if (s instanceof RutaAction && node instanceof RutaAction) {
RutaAction a1 = (RutaAction) node;
RutaAction a2 = (RutaAction) s;
if (a1.getName().equals(a2.getName())) {
result.add(s);
}
} else if (s instanceof RutaCondition && node instanceof RutaCondition) {
RutaCondition c1 = (RutaCondition) node;
RutaCondition c2 = (RutaCondition) s;
if (c1.getName().equals(c2.getName())) {
result.add(s);
}
}
return super.visit(s);
}
public List<ASTNode> getResult() {
return result;
}
}