/*
* Copyright 2003-2015 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.persistence;
import com.intellij.openapi.application.ApplicationManager;
import com.intellij.openapi.components.ApplicationComponent;
import com.intellij.openapi.extensions.AbstractExtensionPointBean;
import com.intellij.openapi.extensions.ExtensionPointName;
import com.intellij.openapi.project.Project;
import com.intellij.openapi.ui.Messages;
import com.intellij.util.xmlb.annotations.Attribute;
import jetbrains.mps.extapi.persistence.ModelFactoryService;
import jetbrains.mps.generator.impl.plan.ConnectedComponentPartitioner.Component;
import jetbrains.mps.ide.MPSCoreComponents;
import jetbrains.mps.util.annotation.ToRemove;
import org.apache.log4j.LogManager;
import org.apache.log4j.Logger;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.mps.annotations.Internal;
import org.jetbrains.mps.openapi.persistence.ModelFactory;
import org.jetbrains.mps.openapi.persistence.NotImplementedModelFactoryType;
import org.jetbrains.mps.openapi.persistence.NullDataSource.NullDataSourceType;
import org.jetbrains.mps.openapi.persistence.PersistenceFacade;
import org.jetbrains.mps.openapi.persistence.datasource.DataSourceType;
import java.util.ArrayList;
import java.util.List;
/**
* A platform extension point to client custom model factories
* delegates to the {@link ModelFactoryService}
* The legacy persistence facade registration eventually triggers the registration in the {@link ModelFactoryService}.
*/
@Internal
public final class ModelFactoryRegister implements ApplicationComponent {
private static final Logger LOG = LogManager.getLogger(ModelFactoryRegister.class);
private final List<ModelFactory> myRegisteredFactories = new ArrayList<>();
private final PersistenceFacade myPersistenceRegistry;
public ModelFactoryRegister(MPSCoreComponents mpsCoreComponents) {
myPersistenceRegistry = mpsCoreComponents.getPersistenceFacade();
}
@Override
public void initComponent() {
for (ModelFactoryProvider provider : ModelFactoryProvider.EP_MODEL_FACTORY.getExtensions()) {
try {
ModelFactory modelFactory = provider.instantiate(provider.getImplementationClass(), ApplicationManager.getApplication().getPicoContainer());
myRegisteredFactories.add(modelFactory);
check(modelFactory);
registerLEGACY(modelFactory);
} catch (ClassNotFoundException e) {
String m = String.format("Failed to load %s in the plugin %s",
provider.getImplementationClass(),
provider.getPluginDescriptor().getPluginId());
LogManager.getLogger(ModelFactoryRegister.class).error(m, e);
}
}
}
@ToRemove(version = 181)
private boolean isLegacy(ModelFactory factory) {
return factory.getType() == NotImplementedModelFactoryType.INSTANCE;
}
private void check(@NotNull ModelFactory modelFactory) {
if (isLegacy(modelFactory)) {
String message = "The model factory '" + modelFactory + "' seems to be restrained to the legacy API.\n" +
"Please reimplement new methods properly since the legacy API will be dropped in the 2018.1 version.";
if (ApplicationManager.getApplication().isHeadlessEnvironment()) {
LOG.error(message, new Throwable());
} else {
Messages.showErrorDialog((Project) null, message, "Attention");
}
}
}
@ToRemove(version = 3.7)
@Deprecated
private void registerLEGACY(ModelFactory modelFactory) {
myPersistenceRegistry.setModelFactory(modelFactory.getFileExtension(), modelFactory);
}
@Override
public void disposeComponent() {
for (ModelFactory modelFactory : myRegisteredFactories) {
unregisterLEGACY(modelFactory);
}
myRegisteredFactories.clear();
}
private void unregisterLEGACY(ModelFactory modelFactory) {
myPersistenceRegistry.setModelFactory(modelFactory.getFileExtension(), null);
}
@NotNull
@Override
public String getComponentName() {
return "ModelFactoryRegister";
}
public static class ModelFactoryProvider extends AbstractExtensionPointBean {
public static final ExtensionPointName<ModelFactoryProvider> EP_MODEL_FACTORY = ExtensionPointName.create("com.intellij.mps.ModelFactoryProvider");
@Attribute(value = "implementationClass")
public String myImplementationClass;
public String getImplementationClass() {
return myImplementationClass;
}
}
}