/*
* 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.jsp.ognl;
import com.intellij.lang.injection.InjectedLanguageManager;
import com.intellij.lang.ognl.psi.resolve.variable.OgnlVariableReference;
import com.intellij.lang.ognl.psi.resolve.variable.OgnlVariableReferencesContributor;
import com.intellij.psi.PsiElement;
import com.intellij.psi.PsiFile;
import com.intellij.psi.jsp.JspFile;
import com.intellij.struts2.facet.StrutsFacet;
import com.intellij.util.Processor;
import org.jetbrains.annotations.NotNull;
/**
* OGNL variables in JSP context provided by S2.
*
* @author Yann Cébron
*/
public class OgnlStruts2JspVariableReferencesContributor extends OgnlVariableReferencesContributor {
private static final String ORIGIN_INFO = "JSP";
private static final String[] VAR_NAMES = {"parameters", "request", "session", "application", "attr"};
@Override
public boolean process(@NotNull PsiElement element,
@NotNull PsiFile containingFile,
@NotNull Processor<OgnlVariableReference> processor) {
final PsiFile topLevelFile = InjectedLanguageManager.getInstance(containingFile.getProject()).getTopLevelFile(element);
if (!(topLevelFile instanceof JspFile)) {
return true;
}
if (StrutsFacet.getInstance(element) == null) {
return true;
}
final PsiElement selfNavigation = element.getOriginalElement();
for (String name : VAR_NAMES) {
if (!processor.process(new OgnlVariableReference(name, "java.util.Map<String,Object>", ORIGIN_INFO, selfNavigation))) {
return false;
}
}
return true;
}
}