/*
* $Id$
*
* SARL is an general-purpose agent programming language.
* More details on http://www.sarl.io
*
* Copyright (C) 2014-2017 the original authors or 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 io.sarl.lang.generator;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import com.google.inject.Inject;
import com.google.inject.name.Named;
import org.eclipse.emf.common.notify.Adapter;
import org.eclipse.emf.common.notify.Notifier;
import org.eclipse.emf.common.notify.impl.AdapterImpl;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.resource.Resource;
import org.eclipse.emf.ecore.resource.ResourceSet;
import org.eclipse.xtext.Constants;
import org.eclipse.xtext.util.internal.EmfAdaptable;
import org.eclipse.xtext.xbase.lib.Pure;
/** Provider of a generator configuration v2.
*
* @author $Author: sgalland$
* @version $FullVersion$
* @mavengroupid $GroupId$
* @mavenartifactid $ArtifactId$
* @since 0.4
*/
public class GeneratorConfigProvider2 implements IGeneratorConfigProvider2 {
@Inject
@Named(Constants.LANGUAGE_NAME)
private String languageId;
@Override
public GeneratorConfig2 get(EObject context) {
final Resource eResource;
if (context != null) {
eResource = context.eResource();
} else {
eResource = null;
}
final ResourceSet resourceSet;
if (eResource != null) {
resourceSet = eResource.getResourceSet();
} else {
resourceSet = null;
}
if (resourceSet != null) {
final GeneratorConfigAdapter adapter = GeneratorConfigAdapter.findInEmfObject(resourceSet);
if (adapter != null && adapter.getLanguage2GeneratorConfig().containsKey(this.languageId)) {
return adapter.getLanguage2GeneratorConfig().get(this.languageId);
}
}
final GeneratorConfig2 config = new GeneratorConfig2();
return config;
}
/** Install the given configuration in the resource set.
*
* @param resourceSet the resource set.
* @param config the ne configuration.
* @return the configuration.
*/
public GeneratorConfig2 install(final ResourceSet resourceSet, GeneratorConfig2 config) {
GeneratorConfigAdapter adapter = GeneratorConfigAdapter.findInEmfObject(resourceSet);
if (adapter == null) {
adapter = new GeneratorConfigAdapter();
}
adapter.attachToEmfObject(resourceSet);
return adapter.getLanguage2GeneratorConfig().put(this.languageId, config);
}
/** Adapter for providing the SARL generator configuration.
*
* @author $Author: sgalland$
* @version $FullVersion$
* @mavengroupid $GroupId$
* @mavenartifactid $ArtifactId$
*/
@EmfAdaptable
public static class GeneratorConfigAdapter {
private final Map<String, GeneratorConfig2> language2GeneratorConfig = new HashMap<>();
/** Find the adapter in the EMF object.
*
* @param emfObject the EMF object.
* @return the adapter or <code>null</code> if no object is available.
*/
public static GeneratorConfigAdapter findInEmfObject(final Notifier emfObject) {
if (emfObject != null) {
for (final Adapter adapter : emfObject.eAdapters()) {
if (adapter instanceof GeneratorConfigAdapter.GeneratorConfigAdapterAdapter) {
return ((GeneratorConfigAdapter.GeneratorConfigAdapterAdapter) adapter).get();
}
}
}
return null;
}
/** Remove the adapter from the given EMF object.
*
* @param emfObject the EMF object.
* @return the removed adapter.
*/
public static GeneratorConfigAdapter removeFromEmfObject(final Notifier emfObject) {
final List<Adapter> adapters = emfObject.eAdapters();
final Iterator<Adapter> iterator = adapters.iterator();
while (iterator.hasNext()) {
final Adapter adapter = iterator.next();
if (adapter instanceof GeneratorConfigAdapter.GeneratorConfigAdapterAdapter) {
iterator.remove();
return ((GeneratorConfigAdapter.GeneratorConfigAdapterAdapter) adapter).get();
}
}
return null;
}
/** Attach this adapter to the EMF object.
*
* @param emfObject the EMF object.
*/
public void attachToEmfObject(Notifier emfObject) {
final GeneratorConfigAdapter result = findInEmfObject(emfObject);
if (result != null) {
throw new IllegalStateException(Messages.GeneratorConfigProvider2_0);
}
final GeneratorConfigAdapter.GeneratorConfigAdapterAdapter adapter = new GeneratorConfigAdapter.GeneratorConfigAdapterAdapter(this);
emfObject.eAdapters().add(adapter);
}
/** Replies the configuration map.
*
* @return the map.
*/
@Pure
public Map<String, GeneratorConfig2> getLanguage2GeneratorConfig() {
return this.language2GeneratorConfig;
}
/** EMF Adapter.
*
* @author $Author: sgalland$
* @version $FullVersion$
* @mavengroupid $GroupId$
* @mavenartifactid $ArtifactId$
*/
public static class GeneratorConfigAdapterAdapter extends AdapterImpl {
private final GeneratorConfigAdapter element;
/** Constructor.
*
* @param element the linked adapter.
*/
public GeneratorConfigAdapterAdapter(GeneratorConfigAdapter element) {
this.element = element;
}
/** Replies the linked adapter.
*
* @return the linked adapter.
*/
public GeneratorConfigAdapter get() {
return this.element;
}
@Override
public boolean isAdapterForType(Object object) {
return object == GeneratorConfigAdapter.class;
}
}
}
}