/*
* Copyright 2013 The WicketForge-Team
*
* 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 wicketforge.search;
import com.intellij.openapi.module.Module;
import com.intellij.openapi.module.ModuleUtil;
import com.intellij.openapi.vfs.VirtualFile;
import com.intellij.psi.PsiClass;
import com.intellij.psi.PsiFile;
import com.intellij.psi.PsiManager;
import com.intellij.psi.search.GlobalSearchScope;
import com.intellij.psi.search.ProjectScope;
import com.intellij.psi.util.PsiUtilCore;
import com.intellij.util.indexing.*;
import com.intellij.util.io.EnumeratorStringDescriptor;
import com.intellij.util.io.KeyDescriptor;
import com.intellij.util.messages.MessageBus;
import org.jetbrains.annotations.NotNull;
import wicketforge.facet.WicketForgeFacetConfiguration;
import wicketforge.util.WicketPsiUtil;
import java.util.*;
abstract class WicketResourceIndexExtension extends ScalarIndexExtension<String> implements FileBasedIndex.InputFilter, DataIndexer<String, Void, FileContent> {
private final EnumeratorStringDescriptor keyDescriptor = new EnumeratorStringDescriptor();
private static final char LOCALIZEDFILE_INDEXMARKER = '#';
protected WicketResourceIndexExtension(@NotNull MessageBus messageBus) {
messageBus.connect().subscribe(WicketForgeFacetConfiguration.ADDITIONAL_PATHS_CHANGED, new Runnable() {
@Override
public void run() {
FileBasedIndex.getInstance().requestRebuild(getName());
}
});
}
@NotNull
@Override
public Map<String, Void> map(FileContent inputData) {
ResourceInfo resourceInfo = ResourceInfo.from(inputData);
if (resourceInfo == null) {
return Collections.emptyMap();
} else if (resourceInfo.locale == null) {
return Collections.singletonMap(resourceInfo.qualifiedName, null);
} else {
return Collections.singletonMap(resourceInfo.qualifiedName + LOCALIZEDFILE_INDEXMARKER, null);
}
}
@NotNull
@Override
public DataIndexer<String, Void, FileContent> getIndexer() {
return this;
}
@NotNull
@Override
public KeyDescriptor<String> getKeyDescriptor() {
return keyDescriptor;
}
@NotNull
@Override
public FileBasedIndex.InputFilter getInputFilter() {
return this;
}
@Override
public boolean dependsOnFileContent() {
return true;
}
@Override
public int getVersion() {
return 0;
}
@NotNull
protected static PsiFile[] getFilesByClass(@NotNull ID<String, Void> indexId, @NotNull final PsiClass psiClass, boolean all) {
String name = psiClass.getQualifiedName();
if (name == null) {
return PsiFile.EMPTY_ARRAY;
}
GlobalSearchScope scope;
if (WicketPsiUtil.isInLibrary(psiClass)) {
scope = ProjectScope.getLibrariesScope(psiClass.getProject());
} else {
Module module = ModuleUtil.findModuleForPsiElement(psiClass);
if (module == null) {
return PsiFile.EMPTY_ARRAY;
}
scope = WicketSearchScope.resourcesInModuleWithDependenciesAndLibraries(module);
}
final Collection<VirtualFile> files = FileBasedIndex.getInstance().getContainingFiles(indexId, name, scope);
if (all) {
files.addAll(FileBasedIndex.getInstance().getContainingFiles(indexId, name + LOCALIZEDFILE_INDEXMARKER, scope));
}
if (files.isEmpty()) {
return PsiFile.EMPTY_ARRAY;
}
List<PsiFile> result = new ArrayList<PsiFile>();
PsiManager manager = PsiManager.getInstance(psiClass.getProject());
for (VirtualFile file : files) {
if (file.isValid()) {
PsiFile psiFile = manager.findFile(file);
if (psiFile != null) {
result.add(psiFile);
}
}
}
return PsiUtilCore.toPsiFileArray(result);
}
}