/*
* Copyright 2014 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.dom.struts.impl;
import com.intellij.jam.model.common.BaseImpl;
import com.intellij.openapi.util.Ref;
import com.intellij.psi.PsiFile;
import com.intellij.psi.util.CachedValue;
import com.intellij.psi.util.CachedValueProvider;
import com.intellij.psi.util.CachedValuesManager;
import com.intellij.psi.util.PsiModificationTracker;
import com.intellij.struts2.dom.struts.strutspackage.DefaultClassRef;
import com.intellij.struts2.dom.struts.strutspackage.ResultType;
import com.intellij.struts2.dom.struts.strutspackage.StrutsPackage;
import com.intellij.struts2.dom.struts.strutspackage.StrutsPackageHierarchyWalker;
import com.intellij.util.Processor;
import com.intellij.util.xml.DomUtil;
import com.intellij.util.xml.GenericAttributeValue;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import java.util.List;
/**
* @author Yann Cébron
*/
public abstract class StrutsPackageImpl extends BaseImpl implements StrutsPackage {
@NotNull
public String searchNamespace() {
final Ref<String> result = new Ref<String>();
final StrutsPackageHierarchyWalker walker = new StrutsPackageHierarchyWalker(this, new Processor<StrutsPackage>() {
@Override
public boolean process(final StrutsPackage strutsPackage) {
if (DomUtil.hasXml(strutsPackage.getNamespace())) {
result.set(strutsPackage.getNamespace().getStringValue());
return false;
}
return true;
}
});
walker.walkUp();
return result.isNull() ? DEFAULT_NAMESPACE : result.get();
}
@Nullable
public DefaultClassRef searchDefaultClassRef() {
final Ref<DefaultClassRef> result = new Ref<DefaultClassRef>();
final StrutsPackageHierarchyWalker walker = new StrutsPackageHierarchyWalker(this, new Processor<StrutsPackage>() {
@Override
public boolean process(final StrutsPackage strutsPackage) {
if (DomUtil.hasXml(strutsPackage.getDefaultClassRef())) {
result.set(strutsPackage.getDefaultClassRef());
return false;
}
return true;
}
});
walker.walkUp();
return result.get();
}
private CachedValue<ResultType> myCachedDefaultResultType;
@Nullable
public ResultType searchDefaultResultType() {
if (myCachedDefaultResultType == null) {
final PsiFile containingFile = getContainingFile();
if (containingFile == null) {
return null;
}
myCachedDefaultResultType = CachedValuesManager.getManager(containingFile.getProject()).createCachedValue(
new CachedValueProvider<ResultType>() {
@Nullable
@Override
public Result<ResultType> compute() {
final Ref<ResultType> result = new Ref<ResultType>();
final StrutsPackageHierarchyWalker walker =
new StrutsPackageHierarchyWalker(StrutsPackageImpl.this, new Processor<StrutsPackage>() {
@Override
public boolean process(final StrutsPackage strutsPackage) {
final List<ResultType> resultTypes = strutsPackage.getResultTypes();
for (final ResultType resultType : resultTypes) {
final GenericAttributeValue<Boolean> defaultAttribute = resultType.getDefault();
if (DomUtil.hasXml(defaultAttribute) &&
defaultAttribute.getValue() == Boolean.TRUE) {
result.set(resultType);
return false;
}
}
return true;
}
});
walker.walkUp();
return Result.createSingleDependency(result.get(), PsiModificationTracker.MODIFICATION_COUNT);
}
}, false);
}
return myCachedDefaultResultType.getValue();
}
}