/*
* Copyright 2003-2012 JetBrains s.r.o.
*
* 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 jetbrains.mps;
import com.intellij.openapi.application.ApplicationManager;
import com.intellij.openapi.components.ApplicationComponent;
import jetbrains.mps.smodel.Language;
import jetbrains.mps.smodel.MPSModuleOwner;
import jetbrains.mps.smodel.ModelAccessHelper;
import jetbrains.mps.smodel.ModuleRepositoryFacade;
import jetbrains.mps.util.Computable;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import org.jetbrains.mps.openapi.module.SModule;
import java.util.Map;
import java.util.Set;
import java.util.concurrent.ConcurrentHashMap;
import java.util.regex.Pattern;
public class VisibleModuleRegistry implements ApplicationComponent {
Map<String, Boolean> myCache = new ConcurrentHashMap<String, Boolean>();
public boolean isVisible(@Nullable final SModule module) {
if (module == null) return false;
//project modules
//contributed by plugin
Set<MPSModuleOwner> moduleOwners = new ModelAccessHelper(module.getRepository()).runReadAction(new Computable<Set<MPSModuleOwner>>() {
@Override
public Set<MPSModuleOwner> compute() {
return new ModuleRepositoryFacade(module.getRepository()).getModuleOwners(module);
}
});
for (MPSModuleOwner owner : moduleOwners) {
if (owner instanceof Language) {
return isVisible((Language) owner);
}
if (!owner.isHidden()) return true;
}
String moduleFqName = module.getModuleName();
Boolean result = myCache.get(moduleFqName);
if (result != null) return result;
result = matchesMask(module);
myCache.put(moduleFqName, result);
return result;
}
private boolean matchesMask(final SModule module) {
//satisfying a mask
VisibleModuleMask[] extensions = VisibleModuleMask.EP_VISIBLE_MODULES.getExtensions();
for (VisibleModuleMask e : extensions) {
Pattern p = Pattern.compile(e.mask);
if (p.matcher(module.getModuleName()).matches()) {
return true;
}
}
return false;
}
public static VisibleModuleRegistry getInstance() {
return ApplicationManager.getApplication().getComponent(VisibleModuleRegistry.class);
}
@Override
public void initComponent() {
}
@Override
public void disposeComponent() {
}
@NotNull
@Override
public String getComponentName() {
return VisibleModuleRegistry.class.getSimpleName();
}
}