/*
* Copyright 2013 The authors
* 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 com.intellij.struts2.reference.web;
import com.intellij.openapi.module.Module;
import com.intellij.openapi.module.ModuleUtilCore;
import com.intellij.psi.PsiElement;
import com.intellij.psi.PsiReference;
import com.intellij.psi.PsiReferenceBase;
import com.intellij.psi.PsiReferenceProvider;
import com.intellij.psi.xml.XmlTag;
import com.intellij.struts2.model.constant.StrutsConstant;
import com.intellij.struts2.model.constant.StrutsConstantManager;
import com.intellij.util.ArrayUtil;
import com.intellij.util.Function;
import com.intellij.util.ProcessingContext;
import com.intellij.util.containers.ContainerUtil;
import org.jetbrains.annotations.NotNull;
import java.util.List;
/**
* Resolves S2 constant names for {@code <param-name>} in {@code web.xml}.
*
* @author Yann Cébron
*/
public class WebXmlStrutsConstantNameReferenceProvider extends PsiReferenceProvider {
@NotNull
@Override
public PsiReference[] getReferencesByElement(@NotNull final PsiElement psiElement,
@NotNull final ProcessingContext processingContext) {
return new PsiReference[]{new StrutsConstantNameReference((XmlTag) psiElement)};
}
private static class StrutsConstantNameReference extends PsiReferenceBase<XmlTag> {
StrutsConstantNameReference(@NotNull final XmlTag xmlTag) {
super(xmlTag);
}
public PsiElement resolve() {
return myElement;
}
@NotNull
public Object[] getVariants() {
final Module module = ModuleUtilCore.findModuleForPsiElement(myElement);
if (module == null) {
return ArrayUtil.EMPTY_OBJECT_ARRAY;
}
final StrutsConstantManager constantManager = StrutsConstantManager.getInstance(myElement.getProject());
final List<StrutsConstant> constants = constantManager.getConstants(module);
return ContainerUtil.map2Array(constants, strutsConstant -> strutsConstant.getName());
}
}
}